[gopls-release-branch.0.6] all: merge master into gopls-release-branch.0.6
b261fe96 go/tools: add vet check for direct comparion of reflect.Values
e78b40c7 internal/lsp: switch to 'go get -u ./...' for transitive upgrades
3ac76b8b gopls/internal/coverage: better error messages and output
c6024661 Revert "internal/lsp/cache: disable GOPACKAGESDRIVER"
35a91593 go/internal/gcimporter: ensure that imported floats are of float kind
5d334387 go/internal/gcimporter: merge go1.11 tests back into gcimporter_test.go
11c3f835 internal/lsp/source: fix Highlight for std and 3rd-party packages
8c34cc9c internal/lsp/cache: fix race condition in snapshot's initializedErr
0deaffd2 gopls/internal/regtest: re-enable the gc_details regtest for -short
af364066 internal/lsp/source: respond with the underlying type to Type Definition requests for composite types
682c7e60 godoc/static: link to golang.org for content moved out of Go root
ca627f83 internal/lsp/semantic: fix some type definitions
04595890 internal/lsp/protocol/typescript: small cleanups and add tsconfig.json
b0e994dc internal/jsonrpc2_v2: move the idle timeout handling out of the server
95535753 internal/lsp: remove unnecessary call to WorkspacePackages in mod tidy
769264cf internal/lsp/source: fix docs for fields of anonymous structs/interfaces
cb7d5993 internal/lsp/source: skip blank identifiers during the function extraction
94a19427 internal/lsp/completion: move postfix completions behind option
09058ab0 internal/lsp/source/completion: add postfix snippet completions
2c039f7f internal/event/label: prevent unsafe get of non-string
4c8e4a8b go/analysis/passes/inspect: fix typo in comment
63ea654b internal/lsp: hold the gc details lock when storing diagnostics
7f6d50ea internal/lsp/source: fix hover and completion with dot imports
b3556f0f internal/lsp: remove some unused parameters, mostly in the cache package
09a00c1a internal/lsp: fix support for SourceFixAll code actions
877f9c48 internal/jsonrpc2_v2: an updated jsonrpc2 library
52cb7724 gopls: upgrade mvdan.cc/gofumpt to v0.1.1
a1191f37 gopls: upgrade honnef.co/go/tools to v0.1.3
d8aeb16b internal/lsp: add defaultLibrary mod for basic types
aa0c7234 internal/lsp/cache: get control of reloadOrphanedFiles
d7a25ada gopls/integration: remove obsolete code
9bdb4197 gopls/internal: add coverage command to compute test coverage
d2e11a2b present: don't drop commands that immediately follow text
695b1675 cmd/present2md: allow comments to be retained in translated document
a14ff98a present: retain complete caption command when parsing captions
1aac171f Update emacs.md - add .dir-locals.el example
2c4a8865 internal/lsp: remove module diagnostics from code actions
9b614f5d internal/lsp/cache: tolerate analysis panics better
9e9211a9 gopls/internal/regtest: fix race when printing regtest state on falure
6d45e3d9 internal/lsp: add a temp workspace per folder, and a helper command
e409f121 internal/lsp: add snippet completion for t.Fatal errs
8e4f4c86 godoc: delete GoogleCN logic
44abc2a7 internal/lsp: only load by view when there are no go.mod files
Change-Id: Ie5d628f640a8edaeb41c4cdf30aafefbc892ec7c
diff --git a/cmd/godoc/main.go b/cmd/godoc/main.go
index 02f0eb6..8780f8b 100644
--- a/cmd/godoc/main.go
+++ b/cmd/godoc/main.go
@@ -192,8 +192,10 @@
}
if *templateDir != "" {
fs.Bind("/lib/godoc", vfs.OS(*templateDir), "/", vfs.BindBefore)
+ fs.Bind("/favicon.ico", vfs.OS(*templateDir), "/favicon.ico", vfs.BindReplace)
} else {
fs.Bind("/lib/godoc", mapfs.New(static.Files), "/", vfs.BindReplace)
+ fs.Bind("/favicon.ico", mapfs.New(static.Files), "/favicon.ico", vfs.BindReplace)
}
// Get the GOMOD value, use it to determine if godoc is being invoked in module mode.
diff --git a/cmd/present2md/main.go b/cmd/present2md/main.go
index 15ee3e6..64be64b 100644
--- a/cmd/present2md/main.go
+++ b/cmd/present2md/main.go
@@ -93,6 +93,11 @@
return fmt.Errorf("%v: already markdown", file)
}
+ // Convert all comments before parsing the document.
+ // The '//' comment is treated as normal text and so
+ // is passed through the translation unaltered.
+ data = bytes.Replace(data, []byte("\n#"), []byte("\n//"), -1)
+
doc, err := present.Parse(bytes.NewReader(data), file, 0)
if err != nil {
return err
diff --git a/go/analysis/passes/inspect/inspect.go b/go/analysis/passes/inspect/inspect.go
index 2856df1..4bb652a 100644
--- a/go/analysis/passes/inspect/inspect.go
+++ b/go/analysis/passes/inspect/inspect.go
@@ -3,8 +3,8 @@
// license that can be found in the LICENSE file.
// Package inspect defines an Analyzer that provides an AST inspector
-// (golang.org/x/tools/go/ast/inspect.Inspect) for the syntax trees of a
-// package. It is only a building block for other analyzers.
+// (golang.org/x/tools/go/ast/inspector.Inspector) for the syntax trees
+// of a package. It is only a building block for other analyzers.
//
// Example of use in another analysis:
//
diff --git a/go/analysis/passes/reflectvaluecompare/reflectvaluecompare.go b/go/analysis/passes/reflectvaluecompare/reflectvaluecompare.go
new file mode 100644
index 0000000..ef21f0e
--- /dev/null
+++ b/go/analysis/passes/reflectvaluecompare/reflectvaluecompare.go
@@ -0,0 +1,99 @@
+// Copyright 2021 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package reflectvaluecompare defines an Analyzer that checks for accidentally
+// using == or reflect.DeepEqual to compare reflect.Value values.
+// See issues 43993 and 18871.
+package reflectvaluecompare
+
+import (
+ "go/ast"
+ "go/token"
+ "go/types"
+
+ "golang.org/x/tools/go/analysis"
+ "golang.org/x/tools/go/analysis/passes/inspect"
+ "golang.org/x/tools/go/ast/inspector"
+ "golang.org/x/tools/go/types/typeutil"
+)
+
+const Doc = `check for comparing reflect.Value values with == or reflect.DeepEqual
+
+The reflectvaluecompare checker looks for expressions of the form:
+
+ v1 == v2
+ v1 != v2
+ reflect.DeepEqual(v1, v2)
+
+where v1 or v2 are reflect.Values. Comparing reflect.Values directly
+is almost certainly not correct, as it compares the reflect package's
+internal representation, not the underlying value.
+Likely what is intended is:
+
+ v1.Interface() == v2.Interface()
+ v1.Interface() != v2.Interface()
+ reflect.DeepEqual(v1.Interface(), v2.Interface())
+`
+
+var Analyzer = &analysis.Analyzer{
+ Name: "reflectvaluecompare",
+ Doc: Doc,
+ Requires: []*analysis.Analyzer{inspect.Analyzer},
+ Run: run,
+}
+
+func run(pass *analysis.Pass) (interface{}, error) {
+ inspect := pass.ResultOf[inspect.Analyzer].(*inspector.Inspector)
+
+ nodeFilter := []ast.Node{
+ (*ast.BinaryExpr)(nil),
+ (*ast.CallExpr)(nil),
+ }
+ inspect.Preorder(nodeFilter, func(n ast.Node) {
+ switch n := n.(type) {
+ case *ast.BinaryExpr:
+ if n.Op != token.EQL && n.Op != token.NEQ {
+ return
+ }
+ if isReflectValue(pass, n.X) || isReflectValue(pass, n.Y) {
+ if n.Op == token.EQL {
+ pass.ReportRangef(n, "avoid using == with reflect.Value")
+ } else {
+ pass.ReportRangef(n, "avoid using != with reflect.Value")
+ }
+ }
+ case *ast.CallExpr:
+ fn, ok := typeutil.Callee(pass.TypesInfo, n).(*types.Func)
+ if !ok {
+ return
+ }
+ if fn.FullName() == "reflect.DeepEqual" && (isReflectValue(pass, n.Args[0]) || isReflectValue(pass, n.Args[1])) {
+ pass.ReportRangef(n, "avoid using reflect.DeepEqual with reflect.Value")
+ }
+ }
+ })
+ return nil, nil
+}
+
+// isReflectValue reports whether the type of e is reflect.Value.
+func isReflectValue(pass *analysis.Pass, e ast.Expr) bool {
+ tv, ok := pass.TypesInfo.Types[e]
+ if !ok { // no type info, something else is wrong
+ return false
+ }
+ // See if the type is reflect.Value
+ named, ok := tv.Type.(*types.Named)
+ if !ok {
+ return false
+ }
+ if obj := named.Obj(); obj == nil || obj.Pkg() == nil || obj.Pkg().Path() != "reflect" || obj.Name() != "Value" {
+ return false
+ }
+ if _, ok := e.(*ast.CompositeLit); ok {
+ // This is reflect.Value{}. Don't treat that as an error.
+ // Users should probably use x.IsValid() rather than x == reflect.Value{}, but the latter isn't wrong.
+ return false
+ }
+ return true
+}
diff --git a/go/analysis/passes/reflectvaluecompare/reflectvaluecompare_test.go b/go/analysis/passes/reflectvaluecompare/reflectvaluecompare_test.go
new file mode 100644
index 0000000..88fc8f2
--- /dev/null
+++ b/go/analysis/passes/reflectvaluecompare/reflectvaluecompare_test.go
@@ -0,0 +1,17 @@
+// Copyright 2021 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package reflectvaluecompare_test
+
+import (
+ "testing"
+
+ "golang.org/x/tools/go/analysis/analysistest"
+ "golang.org/x/tools/go/analysis/passes/reflectvaluecompare"
+)
+
+func TestReflectValueCompare(t *testing.T) {
+ testdata := analysistest.TestData()
+ analysistest.Run(t, testdata, reflectvaluecompare.Analyzer, "a")
+}
diff --git a/go/analysis/passes/reflectvaluecompare/testdata/src/a/a.go b/go/analysis/passes/reflectvaluecompare/testdata/src/a/a.go
new file mode 100644
index 0000000..e069c6d
--- /dev/null
+++ b/go/analysis/passes/reflectvaluecompare/testdata/src/a/a.go
@@ -0,0 +1,51 @@
+// Copyright 2021 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// This file contains tests for the reflectvaluecompare checker.
+
+package a
+
+import (
+ "reflect"
+)
+
+func f() {
+ var x, y reflect.Value
+ var a, b interface{}
+ _ = x == y // want `avoid using == with reflect.Value`
+ _ = x == a // want `avoid using == with reflect.Value`
+ _ = a == x // want `avoid using == with reflect.Value`
+ _ = a == b
+
+ // Comparing to reflect.Value{} is ok.
+ _ = a == reflect.Value{}
+ _ = reflect.Value{} == a
+ _ = reflect.Value{} == reflect.Value{}
+}
+func g() {
+ var x, y reflect.Value
+ var a, b interface{}
+ _ = x != y // want `avoid using != with reflect.Value`
+ _ = x != a // want `avoid using != with reflect.Value`
+ _ = a != x // want `avoid using != with reflect.Value`
+ _ = a != b
+
+ // Comparing to reflect.Value{} is ok.
+ _ = a != reflect.Value{}
+ _ = reflect.Value{} != a
+ _ = reflect.Value{} != reflect.Value{}
+}
+func h() {
+ var x, y reflect.Value
+ var a, b interface{}
+ reflect.DeepEqual(x, y) // want `avoid using reflect.DeepEqual with reflect.Value`
+ reflect.DeepEqual(x, a) // want `avoid using reflect.DeepEqual with reflect.Value`
+ reflect.DeepEqual(a, x) // want `avoid using reflect.DeepEqual with reflect.Value`
+ reflect.DeepEqual(a, b)
+
+ // Comparing to reflect.Value{} is ok.
+ reflect.DeepEqual(reflect.Value{}, a)
+ reflect.DeepEqual(a, reflect.Value{})
+ reflect.DeepEqual(reflect.Value{}, reflect.Value{})
+}
diff --git a/go/internal/gcimporter/gcimporter11_test.go b/go/internal/gcimporter/gcimporter11_test.go
deleted file mode 100644
index 3f2f0a0..0000000
--- a/go/internal/gcimporter/gcimporter11_test.go
+++ /dev/null
@@ -1,131 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package gcimporter
-
-import (
- "go/types"
- "runtime"
- "strings"
- "testing"
-
- "golang.org/x/tools/internal/testenv"
-)
-
-var importedObjectTests = []struct {
- name string
- want string
-}{
- // non-interfaces
- {"crypto.Hash", "type Hash uint"},
- {"go/ast.ObjKind", "type ObjKind int"},
- {"go/types.Qualifier", "type Qualifier func(*Package) string"},
- {"go/types.Comparable", "func Comparable(T Type) bool"},
- {"math.Pi", "const Pi untyped float"},
- {"math.Sin", "func Sin(x float64) float64"},
- {"go/ast.NotNilFilter", "func NotNilFilter(_ string, v reflect.Value) bool"},
- {"go/internal/gcimporter.FindPkg", "func FindPkg(path string, srcDir string) (filename string, id string)"},
-
- // interfaces
- {"context.Context", "type Context interface{Deadline() (deadline time.Time, ok bool); Done() <-chan struct{}; Err() error; Value(key interface{}) interface{}}"},
- {"crypto.Decrypter", "type Decrypter interface{Decrypt(rand io.Reader, msg []byte, opts DecrypterOpts) (plaintext []byte, err error); Public() PublicKey}"},
- {"encoding.BinaryMarshaler", "type BinaryMarshaler interface{MarshalBinary() (data []byte, err error)}"},
- {"io.Reader", "type Reader interface{Read(p []byte) (n int, err error)}"},
- {"io.ReadWriter", "type ReadWriter interface{Reader; Writer}"},
- {"go/ast.Node", "type Node interface{End() go/token.Pos; Pos() go/token.Pos}"},
- {"go/types.Type", "type Type interface{String() string; Underlying() Type}"},
-}
-
-func TestImportedTypes(t *testing.T) {
- testenv.NeedsGo1Point(t, 11)
- skipSpecialPlatforms(t)
-
- // This package only handles gc export data.
- if runtime.Compiler != "gc" {
- t.Skipf("gc-built packages not available (compiler = %s)", runtime.Compiler)
- }
-
- for _, test := range importedObjectTests {
- s := strings.Split(test.name, ".")
- if len(s) != 2 {
- t.Fatal("inconsistent test data")
- }
- importPath := s[0]
- objName := s[1]
-
- pkg, err := Import(make(map[string]*types.Package), importPath, ".", nil)
- if err != nil {
- t.Error(err)
- continue
- }
-
- obj := pkg.Scope().Lookup(objName)
- if obj == nil {
- t.Errorf("%s: object not found", test.name)
- continue
- }
-
- got := types.ObjectString(obj, types.RelativeTo(pkg))
- if got != test.want {
- t.Errorf("%s: got %q; want %q", test.name, got, test.want)
- }
-
- if named, _ := obj.Type().(*types.Named); named != nil {
- verifyInterfaceMethodRecvs(t, named, 0)
- }
- }
-}
-
-// verifyInterfaceMethodRecvs verifies that method receiver types
-// are named if the methods belong to a named interface type.
-func verifyInterfaceMethodRecvs(t *testing.T, named *types.Named, level int) {
- // avoid endless recursion in case of an embedding bug that lead to a cycle
- if level > 10 {
- t.Errorf("%s: embeds itself", named)
- return
- }
-
- iface, _ := named.Underlying().(*types.Interface)
- if iface == nil {
- return // not an interface
- }
-
- // check explicitly declared methods
- for i := 0; i < iface.NumExplicitMethods(); i++ {
- m := iface.ExplicitMethod(i)
- recv := m.Type().(*types.Signature).Recv()
- if recv == nil {
- t.Errorf("%s: missing receiver type", m)
- continue
- }
- if recv.Type() != named {
- t.Errorf("%s: got recv type %s; want %s", m, recv.Type(), named)
- }
- }
-
- // check embedded interfaces (if they are named, too)
- for i := 0; i < iface.NumEmbeddeds(); i++ {
- // embedding of interfaces cannot have cycles; recursion will terminate
- if etype, _ := iface.EmbeddedType(i).(*types.Named); etype != nil {
- verifyInterfaceMethodRecvs(t, etype, level+1)
- }
- }
-}
-func TestIssue25301(t *testing.T) {
- testenv.NeedsGo1Point(t, 11)
- skipSpecialPlatforms(t)
-
- // This package only handles gc export data.
- if runtime.Compiler != "gc" {
- t.Skipf("gc-built packages not available (compiler = %s)", runtime.Compiler)
- }
-
- // On windows, we have to set the -D option for the compiler to avoid having a drive
- // letter and an illegal ':' in the import path - just skip it (see also issue #3483).
- if runtime.GOOS == "windows" {
- t.Skip("avoid dealing with relative paths/drive letters on windows")
- }
-
- compileAndImportPkg(t, "issue25301")
-}
diff --git a/go/internal/gcimporter/gcimporter_test.go b/go/internal/gcimporter/gcimporter_test.go
index 63daca9..cfafbbf 100644
--- a/go/internal/gcimporter/gcimporter_test.go
+++ b/go/internal/gcimporter/gcimporter_test.go
@@ -10,6 +10,7 @@
import (
"bytes"
"fmt"
+ "go/constant"
"go/types"
"io/ioutil"
"os"
@@ -286,6 +287,139 @@
t.Logf("tested %d imports", nimports)
}
+var importedObjectTests = []struct {
+ name string
+ want string
+}{
+ // non-interfaces
+ {"crypto.Hash", "type Hash uint"},
+ {"go/ast.ObjKind", "type ObjKind int"},
+ {"go/types.Qualifier", "type Qualifier func(*Package) string"},
+ {"go/types.Comparable", "func Comparable(T Type) bool"},
+ {"math.Pi", "const Pi untyped float"},
+ {"math.Sin", "func Sin(x float64) float64"},
+ {"go/ast.NotNilFilter", "func NotNilFilter(_ string, v reflect.Value) bool"},
+ {"go/internal/gcimporter.FindPkg", "func FindPkg(path string, srcDir string) (filename string, id string)"},
+
+ // interfaces
+ {"context.Context", "type Context interface{Deadline() (deadline time.Time, ok bool); Done() <-chan struct{}; Err() error; Value(key interface{}) interface{}}"},
+ {"crypto.Decrypter", "type Decrypter interface{Decrypt(rand io.Reader, msg []byte, opts DecrypterOpts) (plaintext []byte, err error); Public() PublicKey}"},
+ {"encoding.BinaryMarshaler", "type BinaryMarshaler interface{MarshalBinary() (data []byte, err error)}"},
+ {"io.Reader", "type Reader interface{Read(p []byte) (n int, err error)}"},
+ {"io.ReadWriter", "type ReadWriter interface{Reader; Writer}"},
+ {"go/ast.Node", "type Node interface{End() go/token.Pos; Pos() go/token.Pos}"},
+ {"go/types.Type", "type Type interface{String() string; Underlying() Type}"},
+}
+
+func TestImportedTypes(t *testing.T) {
+ testenv.NeedsGo1Point(t, 11)
+ skipSpecialPlatforms(t)
+
+ // This package only handles gc export data.
+ if runtime.Compiler != "gc" {
+ t.Skipf("gc-built packages not available (compiler = %s)", runtime.Compiler)
+ }
+
+ for _, test := range importedObjectTests {
+ obj := importObject(t, test.name)
+ if obj == nil {
+ continue // error reported elsewhere
+ }
+ got := types.ObjectString(obj, types.RelativeTo(obj.Pkg()))
+ if got != test.want {
+ t.Errorf("%s: got %q; want %q", test.name, got, test.want)
+ }
+
+ if named, _ := obj.Type().(*types.Named); named != nil {
+ verifyInterfaceMethodRecvs(t, named, 0)
+ }
+ }
+}
+
+func TestImportedConsts(t *testing.T) {
+ testenv.NeedsGo1Point(t, 11)
+ skipSpecialPlatforms(t)
+
+ tests := []struct {
+ name string
+ want constant.Kind
+ }{
+ {"math.Pi", constant.Float},
+ {"math.MaxFloat64", constant.Float},
+ {"math.MaxInt64", constant.Int},
+ }
+
+ for _, test := range tests {
+ obj := importObject(t, test.name)
+ if got := obj.(*types.Const).Val().Kind(); got != test.want {
+ t.Errorf("%s: imported as constant.Kind(%v), want constant.Kind(%v)", test.name, got, test.want)
+ }
+ }
+}
+
+// importObject imports the object specified by a name of the form
+// <import path>.<object name>, e.g. go/types.Type.
+//
+// If any errors occur they are reported via t and the resulting object will
+// be nil.
+func importObject(t *testing.T, name string) types.Object {
+ s := strings.Split(name, ".")
+ if len(s) != 2 {
+ t.Fatal("inconsistent test data")
+ }
+ importPath := s[0]
+ objName := s[1]
+
+ pkg, err := Import(make(map[string]*types.Package), importPath, ".", nil)
+ if err != nil {
+ t.Error(err)
+ return nil
+ }
+
+ obj := pkg.Scope().Lookup(objName)
+ if obj == nil {
+ t.Errorf("%s: object not found", name)
+ return nil
+ }
+ return obj
+}
+
+// verifyInterfaceMethodRecvs verifies that method receiver types
+// are named if the methods belong to a named interface type.
+func verifyInterfaceMethodRecvs(t *testing.T, named *types.Named, level int) {
+ // avoid endless recursion in case of an embedding bug that lead to a cycle
+ if level > 10 {
+ t.Errorf("%s: embeds itself", named)
+ return
+ }
+
+ iface, _ := named.Underlying().(*types.Interface)
+ if iface == nil {
+ return // not an interface
+ }
+
+ // check explicitly declared methods
+ for i := 0; i < iface.NumExplicitMethods(); i++ {
+ m := iface.ExplicitMethod(i)
+ recv := m.Type().(*types.Signature).Recv()
+ if recv == nil {
+ t.Errorf("%s: missing receiver type", m)
+ continue
+ }
+ if recv.Type() != named {
+ t.Errorf("%s: got recv type %s; want %s", m, recv.Type(), named)
+ }
+ }
+
+ // check embedded interfaces (if they are named, too)
+ for i := 0; i < iface.NumEmbeddeds(); i++ {
+ // embedding of interfaces cannot have cycles; recursion will terminate
+ if etype, _ := iface.EmbeddedType(i).(*types.Named); etype != nil {
+ verifyInterfaceMethodRecvs(t, etype, level+1)
+ }
+ }
+}
+
func TestIssue5815(t *testing.T) {
skipSpecialPlatforms(t)
@@ -501,6 +635,24 @@
}
}
+func TestIssue25301(t *testing.T) {
+ testenv.NeedsGo1Point(t, 11)
+ skipSpecialPlatforms(t)
+
+ // This package only handles gc export data.
+ if runtime.Compiler != "gc" {
+ t.Skipf("gc-built packages not available (compiler = %s)", runtime.Compiler)
+ }
+
+ // On windows, we have to set the -D option for the compiler to avoid having a drive
+ // letter and an illegal ':' in the import path - just skip it (see also issue #3483).
+ if runtime.GOOS == "windows" {
+ t.Skip("avoid dealing with relative paths/drive letters on windows")
+ }
+
+ compileAndImportPkg(t, "issue25301")
+}
+
func importPkg(t *testing.T, path, srcDir string) *types.Package {
pkg, err := Import(make(map[string]*types.Package), path, srcDir, nil)
if err != nil {
diff --git a/go/internal/gcimporter/iimport.go b/go/internal/gcimporter/iimport.go
index b236deb..8ed8bc6 100644
--- a/go/internal/gcimporter/iimport.go
+++ b/go/internal/gcimporter/iimport.go
@@ -473,6 +473,14 @@
switch {
case exp > 0:
x = constant.Shift(x, token.SHL, uint(exp))
+ // Ensure that the imported Kind is Float, else this constant may run into
+ // bitsize limits on overlarge integers. Eventually we can instead adopt
+ // the approach of CL 288632, but that CL relies on go/constant APIs that
+ // were introduced in go1.13.
+ //
+ // TODO(rFindley): sync the logic here with tip Go once we no longer
+ // support go1.12.
+ x = constant.ToFloat(x)
case exp < 0:
d := constant.Shift(constant.MakeInt64(1), token.SHL, uint(-exp))
x = constant.BinaryOp(x, token.QUO, d)
diff --git a/godoc/godoc.go b/godoc/godoc.go
index 6d4d115..a88aa12 100644
--- a/godoc/godoc.go
+++ b/godoc/godoc.go
@@ -398,9 +398,8 @@
}
type PageInfo struct {
- Dirname string // directory containing the package
- Err error // error or nil
- GoogleCN bool // page is being served from golang.google.cn
+ Dirname string // directory containing the package
+ Err error // error or nil
Mode PageInfoMode // display metadata from query string
@@ -614,8 +613,7 @@
err := p.ExampleHTML.Execute(&buf, struct {
Name, Doc, Code, Play, Output string
- GoogleCN bool
- }{eg.Name, eg.Doc, code, play, out, info.GoogleCN})
+ }{eg.Name, eg.Doc, code, play, out})
if err != nil {
log.Print(err)
}
diff --git a/godoc/golangorgenv/golangorgenv.go b/godoc/golangorgenv/golangorgenv.go
deleted file mode 100644
index 0b96eec..0000000
--- a/godoc/golangorgenv/golangorgenv.go
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package golangorgenv provides environment information for programs running at
-// golang.org and its subdomains.
-package golangorgenv
-
-import (
- "log"
- "os"
- "strconv"
-)
-
-var (
- checkCountry = boolEnv("GOLANGORG_CHECK_COUNTRY")
- enforceHosts = boolEnv("GOLANGORG_ENFORCE_HOSTS")
-)
-
-// CheckCountry reports whether country restrictions should be enforced.
-func CheckCountry() bool {
- return checkCountry
-}
-
-// EnforceHosts reports whether host filtering should be enforced.
-func EnforceHosts() bool {
- return enforceHosts
-}
-
-func boolEnv(key string) bool {
- v := os.Getenv(key)
- if v == "" {
- // TODO(dmitshur): In the future, consider detecting if running in App Engine,
- // and if so, making the environment variables mandatory rather than optional.
- return false
- }
- b, err := strconv.ParseBool(v)
- if err != nil {
- log.Fatalf("environment variable %s (%q) must be a boolean", key, v)
- }
- return b
-}
diff --git a/godoc/page.go b/godoc/page.go
index daf4dc9..126790f 100644
--- a/godoc/page.go
+++ b/godoc/page.go
@@ -9,9 +9,6 @@
"os"
"path/filepath"
"runtime"
- "strings"
-
- "golang.org/x/tools/godoc/golangorgenv"
)
// Page describes the contents of the top-level godoc webpage.
@@ -22,7 +19,6 @@
SrcPath string
Query string
Body []byte
- GoogleCN bool // page is being served from golang.google.cn
TreeView bool // page needs to contain treeview related js and css
// filled in by ServePage
@@ -57,26 +53,6 @@
Title: "File " + relpath,
Subtitle: relpath,
Body: applyTemplate(p.ErrorHTML, "errorHTML", err),
- GoogleCN: googleCN(r),
GoogleAnalytics: p.GoogleAnalytics,
})
}
-
-// googleCN reports whether request r is considered
-// to be served from golang.google.cn.
-func googleCN(r *http.Request) bool {
- if r.FormValue("googlecn") != "" {
- return true
- }
- if strings.HasSuffix(r.Host, ".cn") {
- return true
- }
- if !golangorgenv.CheckCountry() {
- return false
- }
- switch r.Header.Get("X-Appengine-Country") {
- case "", "ZZ", "CN":
- return true
- }
- return false
-}
diff --git a/godoc/search.go b/godoc/search.go
index 0e7509a..33e4feb 100644
--- a/godoc/search.go
+++ b/godoc/search.go
@@ -122,7 +122,6 @@
Tabtitle: query,
Query: query,
Body: body.Bytes(),
- GoogleCN: googleCN(r),
})
}
diff --git a/godoc/server.go b/godoc/server.go
index 8c9b1b9..48e8d95 100644
--- a/godoc/server.go
+++ b/godoc/server.go
@@ -328,7 +328,6 @@
info.TypeInfoIndex[ti.Name] = i
}
- info.GoogleCN = googleCN(r)
var body []byte
if info.Dirname == "/src" {
body = applyTemplate(h.p.PackageRootHTML, "packageRootHTML", info)
@@ -340,7 +339,6 @@
Tabtitle: tabtitle,
Subtitle: subtitle,
Body: body,
- GoogleCN: info.GoogleCN,
TreeView: hasTreeView,
})
}
@@ -610,7 +608,6 @@
SrcPath: relpath,
Tabtitle: relpath,
Body: buf.Bytes(),
- GoogleCN: googleCN(r),
})
}
@@ -689,7 +686,6 @@
SrcPath: relpath,
Tabtitle: relpath,
Body: applyTemplate(p.DirlistHTML, "dirlistHTML", list),
- GoogleCN: googleCN(r),
})
}
@@ -726,7 +722,6 @@
page := Page{
Title: meta.Title,
Subtitle: meta.Subtitle,
- GoogleCN: googleCN(r),
}
// evaluate as template if indicated
diff --git a/godoc/static/analysis/help.html b/godoc/static/analysis/help.html
index 023c07d..dd1b606 100644
--- a/godoc/static/analysis/help.html
+++ b/godoc/static/analysis/help.html
@@ -62,7 +62,7 @@
Clicking on the identifier that defines a named type causes a panel
to appear, displaying information about the named type, including
its size and alignment in bytes, its
- <a href='http://golang.org/ref/spec#Method_sets'>method set</a>, and its
+ <a href='https://golang.org/ref/spec#Method_sets'>method set</a>, and its
<i>implements</i> relation: the set of types T that are assignable to
or from this type U where at least one of T or U is an interface.
diff --git a/godoc/static/example.html b/godoc/static/example.html
index 1e86b25..a7f6691 100644
--- a/godoc/static/example.html
+++ b/godoc/static/example.html
@@ -13,9 +13,7 @@
<div class="buttons">
<a class="run" title="Run this code [shift-enter]">Run</a>
<a class="fmt" title="Format this code">Format</a>
- {{if not $.GoogleCN}}
<a class="share" title="Share this code">Share</a>
- {{end}}
</div>
</div>
{{else}}
diff --git a/godoc/static/favicon.ico b/godoc/static/favicon.ico
new file mode 100644
index 0000000..8d22584
--- /dev/null
+++ b/godoc/static/favicon.ico
Binary files differ
diff --git a/godoc/static/gen.go b/godoc/static/gen.go
index 85c6714..bfbc5bd 100644
--- a/godoc/static/gen.go
+++ b/godoc/static/gen.go
@@ -35,6 +35,7 @@
"dirlist.html",
"error.html",
"example.html",
+ "favicon.ico",
"godoc.html",
"godocs.js",
"images/minus.gif",
diff --git a/godoc/static/godoc.html b/godoc/static/godoc.html
index 86cacb7..6204d33 100644
--- a/godoc/static/godoc.html
+++ b/godoc/static/godoc.html
@@ -39,7 +39,7 @@
<form method="GET" action="/search">
<div id="menu">
{{if (and .Playground .Title)}}
-<a id="playgroundButton" href="http://play.golang.org/" title="Show Go Playground">Play</a>
+<a id="playgroundButton" href="https://play.golang.org/" title="Show Go Playground">Play</a>
{{end}}
<span class="search-box"><input type="search" id="search" name="q" placeholder="Search" aria-label="Search" required><button type="submit"><span><!-- magnifying glass: --><svg width="24" height="24" viewBox="0 0 24 24"><title>submit search</title><path d="M15.5 14h-.79l-.28-.27C15.41 12.59 16 11.11 16 9.5 16 5.91 13.09 3 9.5 3S3 5.91 3 9.5 5.91 16 9.5 16c1.61 0 3.09-.59 4.23-1.57l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z"/><path d="M0 0h24v24H0z" fill="none"/></svg></span></button></span>
</div>
@@ -60,9 +60,7 @@
<div class="buttons">
<a class="run" title="Run this code [shift-enter]">Run</a>
<a class="fmt" title="Format this code">Format</a>
- {{if not $.GoogleCN}}
<a class="share" title="Share this code">Share</a>
- {{end}}
</div>
</div>
{{end}}
@@ -100,8 +98,8 @@
the content of this page is licensed under the
Creative Commons Attribution 3.0 License,
and code is licensed under a <a href="/LICENSE">BSD license</a>.<br>
-<a href="/doc/tos.html">Terms of Service</a> |
-<a href="http://www.google.com/intl/en/policies/privacy/">Privacy Policy</a>
+<a href="https://golang.org/doc/tos.html">Terms of Service</a> |
+<a href="https://www.google.com/intl/en/policies/privacy/">Privacy Policy</a>
</div>
</div><!-- .container -->
diff --git a/godoc/static/packageroot.html b/godoc/static/packageroot.html
index c246c79..6af463b 100644
--- a/godoc/static/packageroot.html
+++ b/godoc/static/packageroot.html
@@ -38,7 +38,7 @@
</div>
<div class="expanded">
<h2 class="toggleButton" title="Click to hide Standard library section">Standard library â–¾</h2>
- <img alt="" class="gopher" src="/doc/gopher/pkg.png"/>
+ <img alt="" class="gopher" src="https://golang.org/doc/gopher/pkg.png"/>
<div class="pkg-dir">
<table>
<tr>
@@ -115,7 +115,7 @@
<h3 id="subrepo">Sub-repositories</h3>
<p>
These packages are part of the Go Project but outside the main Go tree.
- They are developed under looser <a href="/doc/go1compat">compatibility requirements</a> than the Go core.
+ They are developed under looser <a href="https://golang.org/doc/go1compat">compatibility requirements</a> than the Go core.
Install them with "<a href="/cmd/go/#hdr-Download_and_install_packages_and_dependencies">go get</a>".
</p>
<ul>
diff --git a/godoc/static/static.go b/godoc/static/static.go
index 3dab9ea..35aece4 100644
--- a/godoc/static/static.go
+++ b/godoc/static/static.go
@@ -23,7 +23,7 @@
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@@ -45,9 +45,11 @@
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+ "example.html": "<div\x20id=\"example_{{.Name}}\"\x20class=\"toggle\">\x0a\x09<div\x20class=\"collapsed\">\x0a\x09\x09<p\x20class=\"exampleHeading\x20toggleButton\">\xe2\x96\xb9\x20<span\x20class=\"text\">Example{{example_suffix\x20.Name}}</span></p>\x0a\x09</div>\x0a\x09<div\x20class=\"expanded\">\x0a\x09\x09<p\x20class=\"exampleHeading\x20toggleButton\">\xe2\x96\xbe\x20<span\x20class=\"text\">Example{{example_suffix\x20.Name}}</span></p>\x0a\x09\x09{{with\x20.Doc}}<p>{{html\x20.}}</p>{{end}}\x0a\x09\x09{{$output\x20:=\x20.Output}}\x0a\x09\x09{{with\x20.Play}}\x0a\x09\x09\x09<div\x20class=\"play\">\x0a\x09\x09\x09\x09<div\x20class=\"input\"><textarea\x20class=\"code\"\x20spellcheck=\"false\">{{html\x20.}}</textarea></div>\x0a\x09\x09\x09\x09<div\x20class=\"output\"><pre>{{html\x20$output}}</pre></div>\x0a\x09\x09\x09\x09<div\x20class=\"buttons\">\x0a\x09\x09\x09\x09\x09<a\x20class=\"run\"\x20title=\"Run\x20this\x20code\x20[shift-enter]\">Run</a>\x0a\x09\x09\x09\x09\x09<a\x20class=\"fmt\"\x20title=\"Format\x20this\x20code\">Format</a>\x0a\x09\x09\x09\x09\x09<a\x20class=\"share\"\x20title=\"Share\x20this\x20code\">Share</a>\x0a\x09\x09\x09\x09</div>\x0a\x09\x09\x09</div>\x0a\x09\x09{{else}}\x0a\x09\x09\x09<p>Code:</p>\x0a\x09\x09\x09<pre\x20class=\"code\">{{.Code}}</pre>\x0a\x09\x09\x09{{with\x20.Output}}\x0a\x09\x09\x09<p>Output:</p>\x0a\x09\x09\x09<pre\x20class=\"output\">{{html\x20.}}</pre>\x0a\x09\x09\x09{{end}}\x0a\x09\x09{{end}}\x0a\x09</div>\x0a</div>\x0a",
- "godoc.html": "<!DOCTYPE\x20html>\x0a<html>\x0a<head>\x0a<meta\x20http-equiv=\"Content-Type\"\x20content=\"text/html;\x20charset=utf-8\">\x0a<meta\x20name=\"viewport\"\x20content=\"width=device-width,\x20initial-scale=1\">\x0a<meta\x20name=\"theme-color\"\x20content=\"#375EAB\">\x0a{{with\x20.Tabtitle}}\x0a\x20\x20<title>{{html\x20.}}\x20-\x20Go\x20Documentation\x20Server</title>\x0a{{else}}\x0a\x20\x20<title>Go\x20Documentation\x20Server</title>\x0a{{end}}\x0a<link\x20type=\"text/css\"\x20rel=\"stylesheet\"\x20href=\"/lib/godoc/style.css\">\x0a{{if\x20.TreeView}}\x0a<link\x20rel=\"stylesheet\"\x20href=\"/lib/godoc/jquery.treeview.css\">\x0a{{end}}\x0a<script>window.initFuncs\x20=\x20[];</script>\x0a<script\x20src=\"/lib/godoc/jquery.js\"\x20defer></script>\x0a{{if\x20.TreeView}}\x0a<script\x20src=\"/lib/godoc/jquery.treeview.js\"\x20defer></script>\x0a<script\x20src=\"/lib/godoc/jquery.treeview.edit.js\"\x20defer></script>\x0a{{end}}\x0a\x0a{{if\x20.Playground}}\x0a<script\x20src=\"/lib/godoc/playground.js\"\x20defer></script>\x0a{{end}}\x0a{{with\x20.Version}}<script>var\x20goVersion\x20=\x20{{printf\x20\"%q\"\x20.}};</script>{{end}}\x0a<script\x20src=\"/lib/godoc/godocs.js\"\x20defer></script>\x0a</head>\x0a<body>\x0a\x0a<div\x20id='lowframe'\x20style=\"position:\x20fixed;\x20bottom:\x200;\x20left:\x200;\x20height:\x200;\x20width:\x20100%;\x20border-top:\x20thin\x20solid\x20grey;\x20background-color:\x20white;\x20overflow:\x20auto;\">\x0a...\x0a</div><!--\x20#lowframe\x20-->\x0a\x0a<div\x20id=\"topbar\"{{if\x20.Title}}\x20class=\"wide\"{{end}}><div\x20class=\"container\">\x0a<div\x20class=\"top-heading\"\x20id=\"heading-wide\"><a\x20href=\"/pkg/\">Go\x20Documentation\x20Server</a></div>\x0a<div\x20class=\"top-heading\"\x20id=\"heading-narrow\"><a\x20href=\"/pkg/\">GoDoc</a></div>\x0a<a\x20href=\"#\"\x20id=\"menu-button\"><span\x20id=\"menu-button-arrow\">▽</span></a>\x0a<form\x20method=\"GET\"\x20action=\"/search\">\x0a<div\x20id=\"menu\">\x0a{{if\x20(and\x20.Playground\x20.Title)}}\x0a<a\x20id=\"playgroundButton\"\x20href=\"http://play.golang.org/\"\x20title=\"Show\x20Go\x20Playground\">Play</a>\x0a{{end}}\x0a<span\x20class=\"search-box\"><input\x20type=\"search\"\x20id=\"search\"\x20name=\"q\"\x20placeholder=\"Search\"\x20aria-label=\"Search\"\x20required><button\x20type=\"submit\"><span><!--\x20magnifying\x20glass:\x20--><svg\x20width=\"24\"\x20height=\"24\"\x20viewBox=\"0\x200\x2024\x2024\"><title>submit\x20search</title><path\x20d=\"M15.5\x2014h-.79l-.28-.27C15.41\x2012.59\x2016\x2011.11\x2016\x209.5\x2016\x205.91\x2013.09\x203\x209.5\x203S3\x205.91\x203\x209.5\x205.91\x2016\x209.5\x2016c1.61\x200\x203.09-.59\x204.23-1.57l.27.28v.79l5\x204.99L20.49\x2019l-4.99-5zm-6\x200C7.01\x2014\x205\x2011.99\x205\x209.5S7.01\x205\x209.5\x205\x2014\x207.01\x2014\x209.5\x2011.99\x2014\x209.5\x2014z\"/><path\x20d=\"M0\x200h24v24H0z\"\x20fill=\"none\"/></svg></span></button></span>\x0a</div>\x0a</form>\x0a\x0a</div></div>\x0a\x0a{{if\x20.Playground}}\x0a<div\x20id=\"playground\"\x20class=\"play\">\x0a\x09<div\x20class=\"input\"><textarea\x20class=\"code\"\x20spellcheck=\"false\">package\x20main\x0a\x0aimport\x20\"fmt\"\x0a\x0afunc\x20main()\x20{\x0a\x09fmt.Println(\"Hello,\x20\xe4\xb8\x96\xe7\x95\x8c\")\x0a}</textarea></div>\x0a\x09<div\x20class=\"output\"></div>\x0a\x09<div\x20class=\"buttons\">\x0a\x09\x09<a\x20class=\"run\"\x20title=\"Run\x20this\x20code\x20[shift-enter]\">Run</a>\x0a\x09\x09<a\x20class=\"fmt\"\x20title=\"Format\x20this\x20code\">Format</a>\x0a\x09\x09{{if\x20not\x20$.GoogleCN}}\x0a\x09\x09<a\x20class=\"share\"\x20title=\"Share\x20this\x20code\">Share</a>\x0a\x09\x09{{end}}\x0a\x09</div>\x0a</div>\x0a{{end}}\x0a\x0a<div\x20id=\"page\"{{if\x20.Title}}\x20class=\"wide\"{{end}}>\x0a<div\x20class=\"container\">\x0a\x0a{{if\x20or\x20.Title\x20.SrcPath}}\x0a\x20\x20<h1>\x0a\x20\x20\x20\x20{{html\x20.Title}}\x0a\x20\x20\x20\x20{{html\x20.SrcPath\x20|\x20srcBreadcrumb}}\x0a\x20\x20</h1>\x0a{{end}}\x0a\x0a{{with\x20.Subtitle}}\x0a\x20\x20<h2>{{html\x20.}}</h2>\x0a{{end}}\x0a\x0a{{with\x20.SrcPath}}\x0a\x20\x20<h2>\x0a\x20\x20\x20\x20Documentation:\x20{{html\x20.\x20|\x20srcToPkgLink}}\x0a\x20\x20</h2>\x0a{{end}}\x0a\x0a{{/*\x20The\x20Table\x20of\x20Contents\x20is\x20automatically\x20inserted\x20in\x20this\x20<div>.\x0a\x20\x20\x20\x20\x20Do\x20not\x20delete\x20this\x20<div>.\x20*/}}\x0a<div\x20id=\"nav\"></div>\x0a\x0a{{/*\x20Body\x20is\x20HTML-escaped\x20elsewhere\x20*/}}\x0a{{printf\x20\"%s\"\x20.Body}}\x0a\x0a<div\x20id=\"footer\">\x0aBuild\x20version\x20{{html\x20.Version}}.<br>\x0aExcept\x20as\x20<a\x20href=\"https://developers.google.com/site-policies#restrictions\">noted</a>,\x0athe\x20content\x20of\x20this\x20page\x20is\x20licensed\x20under\x20the\x0aCreative\x20Commons\x20Attribution\x203.0\x20License,\x0aand\x20code\x20is\x20licensed\x20under\x20a\x20<a\x20href=\"/LICENSE\">BSD\x20license</a>.<br>\x0a<a\x20href=\"/doc/tos.html\">Terms\x20of\x20Service</a>\x20|\x0a<a\x20href=\"http://www.google.com/intl/en/pol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+ "packageroot.html": 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}
diff --git a/godoc/static/style.css b/godoc/static/style.css
index c495bad..9e04825 100644
--- a/godoc/static/style.css
+++ b/godoc/static/style.css
@@ -404,7 +404,7 @@
margin: 0 auto 1.875rem;
}
div#gopher {
- background: url(/doc/gopher/frontpage.png) no-repeat;
+ background: url(https://golang.org/doc/gopher/frontpage.png) no-repeat;
background-position: center top;
height: 9.688rem;
max-height: 200px; /* Setting in px to prevent the gopher from blowing up in very high default font-sizes */
diff --git a/gopls/doc/commands.md b/gopls/doc/commands.md
index 1d7aa58..c9cc41a 100644
--- a/gopls/doc/commands.md
+++ b/gopls/doc/commands.md
@@ -286,4 +286,9 @@
}
```
+### ****
+Identifier: `gopls.workspace_metadata`
+
+
+
<!-- END Commands: DO NOT MANUALLY EDIT THIS SECTION -->
diff --git a/gopls/doc/emacs.md b/gopls/doc/emacs.md
index 471dbf1..486f493 100644
--- a/gopls/doc/emacs.md
+++ b/gopls/doc/emacs.md
@@ -121,9 +121,9 @@
See [settings] for information about available gopls settings.
LSP server settings are controlled by the `eglot-workspace-configuration`
-variable, which can be set either globally in `.emacs` (as below) or in a
-`.dir-locals.el` file in the project root.
+variable, which can be set either globally in `.emacs` or in a `.dir-locals.el` file in the project root.
+`.emacs`:
```elisp
(setq-default eglot-workspace-configuration
'((:gopls .
@@ -131,6 +131,12 @@
(matcher . "CaseSensitive")))))
```
+`.dir-locals.el`:
+```elisp
+((nil (eglot-workspace-configuration . ((gopls . ((staticcheck . t)
+ (matcher . "CaseSensitive")))))))
+```
+
### Organizing imports with Eglot
`gopls` provides the import-organizing functionality of `goimports` as an LSP
diff --git a/gopls/doc/settings.md b/gopls/doc/settings.md
index f48dc3f..f0e7314 100644
--- a/gopls/doc/settings.md
+++ b/gopls/doc/settings.md
@@ -209,6 +209,15 @@
* `"Fuzzy"`
Default: `"Fuzzy"`.
+##### **experimentalPostfixCompletions** *bool*
+
+**This setting is experimental and may be deleted.**
+
+experimentalPostfixCompletions enables artifical method snippets
+such as "someSlice.sort!".
+
+Default: `false`.
+
#### Diagnostic
##### **analyses** *map[string]bool*
diff --git a/gopls/go.mod b/gopls/go.mod
index 1cb1f87..e26a512 100644
--- a/gopls/go.mod
+++ b/gopls/go.mod
@@ -8,9 +8,11 @@
github.com/sergi/go-diff v1.1.0
golang.org/x/mod v0.4.1
golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c
- golang.org/x/tools v0.1.1-0.20210319172145-bda8f5cee399
+ golang.org/x/tools v0.1.1-0.20210408020845-b261fe96097f
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1
- honnef.co/go/tools v0.1.1
- mvdan.cc/gofumpt v0.1.0
+ honnef.co/go/tools v0.1.3
+ mvdan.cc/gofumpt v0.1.1
mvdan.cc/xurls/v2 v2.2.0
)
+
+replace golang.org/x/tools => ../
diff --git a/gopls/go.sum b/gopls/go.sum
index 0a53270..87e9da3 100644
--- a/gopls/go.sum
+++ b/gopls/go.sum
@@ -33,32 +33,21 @@
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.4.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.4.1 h1:Kvvh58BN8Y9/lBi7hTekvtMpm07eUZ0ck5pRHpsMWrY=
golang.org/x/mod v0.4.1/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
-golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
-golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9 h1:SQFwaSi55rU7vdNs9Yr0Z324VNlrF+0wMqRXT4St8ck=
golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c h1:VwygUrnw9jn88c4u8GD3rZQbqrP/tgas88tPUbBxQrk=
golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20210101214203-2dba1e4ea05c/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
-golang.org/x/tools v0.1.0/go.mod h1:xkSsbof2nBLbhDlRMhhhyNLN/zl3eTqcnHD5viDpcZ0=
-golang.org/x/tools v0.1.1-0.20210319172145-bda8f5cee399 h1:O5bm8buX/OaamnfcBrkjn0SPUIU30jFmaS8lP+ikkxs=
-golang.org/x/tools v0.1.1-0.20210319172145-bda8f5cee399/go.mod h1:9bzcO0MWcOuT0tm1iBGzDVPshzfwoVvREIui8C+MHqU=
-golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
@@ -71,9 +60,9 @@
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.4 h1:/eiJrUcujPVeJ3xlSWaiNi3uSVmDGBK1pDHUHAnao1I=
gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-honnef.co/go/tools v0.1.1 h1:EVDuO03OCZwpV2t/tLLxPmPiomagMoBOgfPt0FM+4IY=
-honnef.co/go/tools v0.1.1/go.mod h1:NgwopIslSNH47DimFoV78dnkksY2EFtX0ajyb3K/las=
-mvdan.cc/gofumpt v0.1.0 h1:hsVv+Y9UsZ/mFZTxJZuHVI6shSQCtzZ11h1JEFPAZLw=
-mvdan.cc/gofumpt v0.1.0/go.mod h1:yXG1r1WqZVKWbVRtBWKWX9+CxGYfA51nSomhM0woR48=
+honnef.co/go/tools v0.1.3 h1:qTakTkI6ni6LFD5sBwwsdSO+AQqbSIxOauHTTQKZ/7o=
+honnef.co/go/tools v0.1.3/go.mod h1:NgwopIslSNH47DimFoV78dnkksY2EFtX0ajyb3K/las=
+mvdan.cc/gofumpt v0.1.1 h1:bi/1aS/5W00E2ny5q65w9SnKpWEF/UIOqDYBILpo9rA=
+mvdan.cc/gofumpt v0.1.1/go.mod h1:yXG1r1WqZVKWbVRtBWKWX9+CxGYfA51nSomhM0woR48=
mvdan.cc/xurls/v2 v2.2.0 h1:NSZPykBXJFCetGZykLAxaL6SIpvbVy/UFEniIfHAa8A=
mvdan.cc/xurls/v2 v2.2.0/go.mod h1:EV1RMtya9D6G5DMYPGD8zTQzaHet6Jh8gFlRgGRJeO8=
diff --git a/gopls/integration/parse/parse.go b/gopls/integration/parse/parse.go
deleted file mode 100644
index 5f52128..0000000
--- a/gopls/integration/parse/parse.go
+++ /dev/null
@@ -1,230 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package parse provides functions to parse LSP logs.
-// Fully processed logs are returned by ToRLog().
-package parse
-
-import (
- "bufio"
- "encoding/json"
- "errors"
- "fmt"
- "log"
- "os"
- "regexp"
- "strings"
-)
-
-// MsgType is the type of message.
-type MsgType int
-
-const (
- // ClRequest from client to server has method and id
- ClRequest MsgType = iota
- // ClResponse from server to client
- ClResponse
- // SvRequest from server to client, has method and id
- SvRequest
- // SvResponse from client to server
- SvResponse
- // ToServer notification has method, but no id
- ToServer
- // ToClient notification
- ToClient
- // ReportErr is an error message
- ReportErr // errors have method and id
-)
-
-// Logmsg is the type of a parsed log entry.
-type Logmsg struct {
- Type MsgType
- Method string
- ID string // for requests/responses. Client and server request ids overlap
- Elapsed string // for responses
- Hdr string // header. do we need to keep all these strings?
- Rest string // the unparsed result, with newlines or not
- Body interface{} // the parsed result
-}
-
-// ReadLogs from a file. Most users should use ToRlog().
-func ReadLogs(fname string) ([]*Logmsg, error) {
- byid := make(map[string]int)
- msgs := []*Logmsg{}
- fd, err := os.Open(fname)
- if err != nil {
- return nil, err
- }
- defer fd.Close()
- logrdr := bufio.NewScanner(fd)
- logrdr.Buffer(nil, 1<<25) // a large buffer, for safety
- logrdr.Split(scanLogs)
- for i := 0; logrdr.Scan(); i++ {
- flds := strings.SplitN(logrdr.Text(), "\n", 2)
- if len(flds) == 1 {
- flds = append(flds, "") // for Errors
- }
- msg, err := parselog(flds[0], flds[1])
- if err != nil {
- return nil, fmt.Errorf("failed to parse %q: %v", logrdr.Text(), err)
- }
- switch msg.Type {
- case ClRequest, SvRequest:
- v, err := msg.unmarshal(Requests(msg.Method))
- if err != nil {
- return nil, fmt.Errorf("%v for %s, %T", err, msg.Method, Requests(msg.Method))
- }
- msg.Body = v
- case ClResponse, SvResponse:
- v, err := msg.doresponse()
- if err != nil {
- return nil, fmt.Errorf("%v %s", err, msg.Method)
- }
- msg.Body = v
- case ToServer, ToClient:
- v, err := msg.unmarshal(Notifs(msg.Method))
- if err != nil && Notifs(msg.Method) != nil {
- return nil, fmt.Errorf("%s/%T: %v", msg.Method, Notifs(msg.Method), err)
- }
- msg.Body = v
- case ReportErr:
- msg.Body = msg.Rest // save cause
- }
- byid[msg.ID]++
- msgs = append(msgs, msg)
- }
- if err = logrdr.Err(); err != nil {
- return msgs, err
- }
- return msgs, nil
-}
-
-// parse a single log message, given first line, and the rest
-func parselog(first, rest string) (*Logmsg, error) {
- if strings.HasPrefix(rest, "Params: ") {
- rest = rest[8:]
- } else if strings.HasPrefix(rest, "Result: ") {
- rest = rest[8:]
- }
- msg := &Logmsg{Hdr: first, Rest: rest}
- fixid := func(s string) string {
- // emacs does (n)., gopls does (n)'.
- s = strings.Trim(s, "()'.{)")
- return s
- }
- flds := strings.Fields(first)
- chk := func(s string, n int) bool { return strings.Contains(first, s) && len(flds) == n }
- // gopls and emacs differ in how they report elapsed time
- switch {
- case chk("Sending request", 9):
- msg.Type = ClRequest
- msg.Method = flds[6][1:]
- msg.ID = fixid(flds[8][:len(flds[8])-2])
- case chk("Received response", 11):
- msg.Type = ClResponse
- msg.Method = flds[6][1:]
- msg.ID = fixid(flds[8])
- msg.Elapsed = flds[10]
- case chk("Received request", 9):
- msg.Type = SvRequest
- msg.Method = flds[6][1:]
- msg.ID = fixid(flds[8])
- case chk("Sending response", 11), // gopls
- chk("Sending response", 13): // emacs
- msg.Type = SvResponse
- msg.Method = flds[6][1:]
- msg.ID = fixid(flds[8][:len(flds[8])-1])
- msg.Elapsed = flds[10]
- case chk("Sending notification", 7):
- msg.Type = ToServer
- msg.Method = strings.Trim(flds[6], ".'")
- if len(flds) == 9 {
- log.Printf("len=%d method=%s %q", len(flds), msg.Method, first)
- }
- case chk("Received notification", 7):
- msg.Type = ToClient
- msg.Method = flds[6][1 : len(flds[6])-2]
- case strings.HasPrefix(first, "[Error - "):
- msg.Type = ReportErr
- both := flds[5]
- idx := strings.Index(both, "#") // relies on ID.Number
- msg.Method = both[:idx]
- msg.ID = fixid(both[idx+1:])
- msg.Rest = strings.Join(flds[6:], " ")
- msg.Rest = `"` + msg.Rest + `"`
- default:
- return nil, fmt.Errorf("surprise, first=%q with %d flds", first, len(flds))
- }
- return msg, nil
-}
-
-// unmarshal into a proposed type
-func (l *Logmsg) unmarshal(p interface{}) (interface{}, error) {
- r := []byte(l.Rest)
- if err := json.Unmarshal(r, p); err != nil {
- // need general alternatives, but for now
- // if p is *[]foo and rest is {}, return an empty p (or *p?)
- // or, cheat:
- if l.Rest == "{}" {
- return nil, nil
- }
- return nil, err
- }
- return p, nil
-}
-
-func (l *Logmsg) doresponse() (interface{}, error) {
- for _, x := range Responses(l.Method) {
- v, err := l.unmarshal(x)
- if err == nil {
- return v, nil
- }
- if x == nil {
- return new(interface{}), nil
- }
- }
- // failure!
- rr := Responses(l.Method)
- for _, x := range rr {
- log.Printf("tried %T", x)
- }
- log.Fatalf("(%d) doresponse failed for %s %q", len(rr), l.Method, l.Rest)
- return nil, nil
-}
-
-// be a little forgiving in separating log records
-var recSep = regexp.MustCompile("\n\n\n|\r\n\r\n\r\n")
-
-// return offset of start of next record, contents of record, error
-func scanLogs(b []byte, atEOF bool) (int, []byte, error) { //bufio.SplitFunc
- got := recSep.FindIndex(b)
- if got == nil {
- if atEOF && len(b) > 0 {
- return 0, nil, errors.New("malformed log: all logs should end with a separator")
- }
- return 0, nil, nil
- }
- return got[1], b[:got[0]], nil
-}
-
-// String returns a user-useful versin of a Direction
-func (d MsgType) String() string {
- switch d {
- case ClRequest:
- return "clrequest"
- case ClResponse:
- return "clresponse"
- case SvRequest:
- return "svrequest"
- case SvResponse:
- return "svresponse"
- case ToServer:
- return "toserver"
- case ToClient:
- return "toclient"
- case ReportErr:
- return "reporterr"
- }
- return fmt.Sprintf("dirname: %d unknown", d)
-}
diff --git a/gopls/integration/parse/protocol.go b/gopls/integration/parse/protocol.go
deleted file mode 100644
index d1e90ed..0000000
--- a/gopls/integration/parse/protocol.go
+++ /dev/null
@@ -1,320 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package parse
-
-import (
- "log"
-
- p "golang.org/x/tools/internal/lsp/protocol"
-)
-
-// Requests and notifications are fixed types
-// Responses may be one of several types
-
-// Requests returns a pointer to a type suitable for Unmarshal
-func Requests(m string) interface{} {
- // these are in the documentation's order
- switch m {
- case "initialize":
- return new(p.InitializeParams)
- case "shutdown":
- return new(struct{})
- case "window/showMessgeRequest":
- return new(p.ShowMessageRequestParams)
- case "client/registerCapability":
- return new(p.RegistrationParams)
- case "client/unregisterCapability":
- return new(p.UnregistrationParams)
- case "workspace/workspaceFolders":
- return nil
- case "workspace/configuration":
- return new(p.ConfigurationParams)
- case "workspace/symbol":
- return new(p.WorkspaceSymbolParams)
- case "workspace/executeCommand":
- return new(p.ExecuteCommandParams)
- case "workspace/applyEdit":
- return new(p.ApplyWorkspaceEditParams)
- case "textDocument/willSaveWaitUntil":
- return new(p.WillSaveTextDocumentParams)
- case "textDocument/completion":
- return new(p.CompletionParams)
- case "completionItem/resolve":
- return new(p.CompletionItem)
- case "textDocument/hover":
- return new(p.TextDocumentPositionParams)
- case "textDocument/signatureHelp":
- return new(p.TextDocumentPositionParams)
- case "textDocument/declaration":
- return new(p.TextDocumentPositionParams)
- case "textDocument/definition":
- return new(p.TextDocumentPositionParams)
- case "textDocument/typeDefinition":
- return new(p.TextDocumentPositionParams)
- case "textDocument/implementation":
- return new(p.TextDocumentPositionParams)
- case "textDocument/references":
- return new(p.ReferenceParams)
- case "textDocument/documentHighlight":
- return new(p.TextDocumentPositionParams)
- case "textDocument/documentSymbol":
- return new(p.DocumentSymbolParams)
- case "textDocument/codeAction":
- return new(p.CodeActionParams)
- case "textDocument/codeLens":
- return new(p.CodeLensParams)
- case "codeLens/resolve":
- return new(p.CodeLens)
- case "textDocument/documentLink":
- return new(p.DocumentLinkParams)
- case "documentLink/resolve":
- return new(p.DocumentLink)
- case "textDocument/documentColor":
- return new(p.DocumentColorParams)
- case "textDocument/colorPressentation":
- return new(p.ColorPresentationParams)
- case "textDocument/formatting":
- return new(p.DocumentFormattingParams)
- case "textDocument/rangeFormatting":
- return new(p.DocumentRangeFormattingParams)
- case "textDocument/typeFormatting":
- return new(p.DocumentOnTypeFormattingParams)
- case "textDocument/rename":
- return new(p.RenameParams)
- case "textDocument/prepareRename":
- return new(p.TextDocumentPositionParams)
- case "textDocument/foldingRange":
- return new(p.FoldingRangeParams)
- case "textDocument/incomingCalls":
- return new(p.CallHierarchyIncomingCallsParams)
- case "textDocument/outgoingCalls":
- return new(p.CallHierarchyOutgoingCallsParams)
- }
- log.Fatalf("request(%s) undefined", m)
- return ""
-}
-
-// Notifs returns a pointer to a type suitable for Unmarshal
-func Notifs(m string) interface{} {
- switch m {
- case "$/cancelRequest":
- return new(p.CancelParams)
- case "$/setTraceNotification":
- return new(struct{ Value string })
- case "client/registerCapability": // why is this a notification? (serer->client rpc)
- return new(p.RegistrationParams)
- case "initialized":
- return new(p.InitializedParams)
- case "exit":
- return nil
- case "window/showMessage":
- return new(p.ShowMessageParams)
- case "window/logMessage":
- return new(p.LogMessageParams)
- case "telemetry/event":
- return new(interface{}) // any
- case "workspace/didChangeWorkspaceFolders":
- return new(p.DidChangeWorkspaceFoldersParams)
- case "workspace/didChangeConfiguration":
- return new(p.DidChangeConfigurationParams)
- case "workspace/didChangeWatchedFiles":
- return new(p.DidChangeWatchedFilesParams)
- case "textDocument/didOpen":
- return new(p.DidOpenTextDocumentParams)
- case "textDocument/didChange":
- return new(p.DidChangeTextDocumentParams)
- case "textDocument/willSave":
- return new(p.WillSaveTextDocumentParams)
- case "textDocument/didSave":
- return new(p.DidSaveTextDocumentParams)
- case "textDocument/didClose":
- return new(p.DidCloseTextDocumentParams)
- case "textDocument/willClose":
- return new(p.DidCloseTextDocumentParams)
- case "textDocument/publishDiagnostics":
- return new(p.PublishDiagnosticsParams)
- }
- log.Fatalf("notif(%s) undefined", m)
- return ""
-}
-
-// Responses returns a slice of types, one of which should be
-// suitable for Unmarshal
-func Responses(m string) []interface{} {
- switch m {
- case "initialize":
- return []interface{}{new(p.InitializeResult)}
- case "shutdown":
- return []interface{}{nil}
- case "window/showMessageRequest":
- return []interface{}{new(p.MessageActionItem), nil}
- case "client/registerCapability":
- return []interface{}{nil}
- case "client/unregisterCapability":
- return []interface{}{nil}
- case "workspace/workspaceFolder":
- return []interface{}{new([]p.WorkspaceFolder), nil}
- case "workspace/configuration":
- return []interface{}{new([]interface{}), new(interface{})}
- case "workspace/symbol":
- return []interface{}{new([]p.SymbolInformation), nil}
- case "workspace/executeCommand":
- return []interface{}{new(interface{}), nil}
- case "workspace/applyEdit":
- return []interface{}{new(p.ApplyWorkspaceEditResponse)}
- case "textDocument/willSaveWaitUntil":
- return []interface{}{new([]p.TextEdit), nil}
- case "textDocument/completion":
- return []interface{}{new(p.CompletionList), new([]p.CompletionItem), nil}
- case "completionItem/resolve":
- return []interface{}{new(p.CompletionItem)}
- case "textDocument/hover":
- return []interface{}{new(p.Hover), nil}
- case "textDocument/signatureHelp":
- return []interface{}{new(p.SignatureHelp), nil}
- case "textDocument/declaration":
- return []interface{}{new(p.Location), new([]p.Location), new([]p.LocationLink), nil}
- case "textDocument/definition":
- return []interface{}{new([]p.Location), new([]p.Location), new([]p.LocationLink), nil}
- case "textDocument/typeDefinition":
- return []interface{}{new([]p.Location), new([]p.LocationLink), new(p.Location), nil}
- case "textDocument/implementation":
- return []interface{}{new(p.Location), new([]p.Location), new([]p.LocationLink), nil}
- case "textDocument/references":
- return []interface{}{new([]p.Location), nil}
- case "textDocument/documentHighlight":
- return []interface{}{new([]p.DocumentHighlight), nil}
- case "textDocument/documentSymbol":
- return []interface{}{new([]p.DocumentSymbol), new([]p.SymbolInformation), nil}
- case "textDocument/codeAction":
- return []interface{}{new([]p.CodeAction), new(p.Command), nil}
- case "textDocument/codeLens":
- return []interface{}{new([]p.CodeLens), nil}
- case "codelens/resolve":
- return []interface{}{new(p.CodeLens)}
- case "textDocument/documentLink":
- return []interface{}{new([]p.DocumentLink), nil}
- case "documentLink/resolve":
- return []interface{}{new(p.DocumentLink)}
- case "textDocument/documentColor":
- return []interface{}{new([]p.ColorInformation)}
- case "textDocument/colorPresentation":
- return []interface{}{new([]p.ColorPresentation)}
- case "textDocument/formatting":
- return []interface{}{new([]p.TextEdit), nil}
- case "textDocument/rangeFormatting":
- return []interface{}{new([]p.TextEdit), nil}
- case "textDocument/onTypeFormatting":
- return []interface{}{new([]p.TextEdit), nil}
- case "textDocument/rename":
- return []interface{}{new(p.WorkspaceEdit), nil}
- case "textDocument/prepareRename":
- return []interface{}{new(p.Range), nil}
- case "textDocument/foldingRange":
- return []interface{}{new([]p.FoldingRange), nil}
- case "callHierarchy/incomingCalls":
- return []interface{}{new([]p.CallHierarchyIncomingCall), nil}
- case "callHierarchy/outgoingCalls":
- return []interface{}{new([]p.CallHierarchyOutgoingCall), nil}
- }
- log.Fatalf("responses(%q) undefined", m)
- return nil
-}
-
-// Msgtype given method names. Note that mSrv|mCl is possible
-type Msgtype int
-
-const (
- // Mnot for notifications
- Mnot Msgtype = 1
- // Mreq for requests
- Mreq Msgtype = 2
- // Msrv for messages from the server
- Msrv Msgtype = 4
- // Mcl for messages from the client
- Mcl Msgtype = 8
-)
-
-// IsNotify says if the message is a notification
-func IsNotify(msg string) bool {
- m, ok := fromMethod[msg]
- if !ok {
- log.Fatalf("%q", msg)
- }
- return m&Mnot != 0
-}
-
-// FromServer says if the message is from the server
-func FromServer(msg string) bool {
- m, ok := fromMethod[msg]
- if !ok {
- log.Fatalf("%q", msg)
- }
- return m&Msrv != 0
-}
-
-// FromClient says if the message is from the client
-func FromClient(msg string) bool {
- m, ok := fromMethod[msg]
- if !ok {
- log.Fatalf("%q", msg)
- }
- return m&Mcl != 0
-}
-
-// rpc name to message type
-var fromMethod = map[string]Msgtype{
- "$/cancelRequest": Mnot | Msrv | Mcl,
- "initialize": Mreq | Msrv,
- "initialized": Mnot | Mcl,
- "shutdown": Mreq | Mcl,
- "exit": Mnot | Mcl,
- "window/showMessage": Mreq | Msrv,
- "window/logMessage": Mnot | Msrv,
- "telemetry'event": Mnot | Msrv,
- "client/registerCapability": Mreq | Msrv,
- "client/unregisterCapability": Mreq | Msrv,
- "workspace/workspaceFolders": Mreq | Msrv,
- "workspace/workspaceDidChangeWorkspaceFolders": Mnot | Mcl,
- "workspace/didChangeConfiguration": Mnot | Mcl,
- "workspace/configuration": Mreq | Msrv,
- "workspace/didChangeWatchedFiles": Mnot | Mcl,
- "workspace/symbol": Mreq | Mcl,
- "workspace/executeCommand": Mreq | Mcl,
- "workspace/applyEdit": Mreq | Msrv,
- "textDocument/didOpen": Mnot | Mcl,
- "textDocument/didChange": Mnot | Mcl,
- "textDocument/willSave": Mnot | Mcl,
- "textDocument/willSaveWaitUntil": Mreq | Mcl,
- "textDocument/didSave": Mnot | Mcl,
- "textDocument/didClose": Mnot | Mcl,
- "textDocument/publishDiagnostics": Mnot | Msrv,
- "textDocument/completion": Mreq | Mcl,
- "completionItem/resolve": Mreq | Mcl,
- "textDocument/hover": Mreq | Mcl,
- "textDocument/signatureHelp": Mreq | Mcl,
- "textDocument/declaration": Mreq | Mcl,
- "textDocument/definition": Mreq | Mcl,
- "textDocument/typeDefinition": Mreq | Mcl,
- "textDocument/implementation": Mreq | Mcl,
- "textDocument/references": Mreq | Mcl,
- "textDocument/documentHighlight": Mreq | Mcl,
- "textDocument/documentSymbol": Mreq | Mcl,
- "textDocument/codeAction": Mreq | Mcl,
- "textDocument/codeLens": Mreq | Mcl,
- "codeLens/resolve": Mreq | Mcl,
- "textDocument/documentLink": Mreq | Mcl,
- "documentLink/resolve": Mreq | Mcl,
- "textDocument/documentColor": Mreq | Mcl,
- "textDocument/colorPresentation": Mreq | Mcl,
- "textDocument/formatting": Mreq | Mcl,
- "textDocument/rangeFormatting": Mreq | Mcl,
- "textDocument/onTypeFormatting": Mreq | Mcl,
- "textDocument/rename": Mreq | Mcl,
- "textDocument/prepareRename": Mreq | Mcl,
- "textDocument/foldingRange": Mreq | Mcl,
- "callHierarchy/incomingCalls": Mreq | Mcl,
- "callHierarchy/outgoingCalls": Mreq | Mcl,
-}
diff --git a/gopls/integration/parse/rlog.go b/gopls/integration/parse/rlog.go
deleted file mode 100644
index aebb1e2..0000000
--- a/gopls/integration/parse/rlog.go
+++ /dev/null
@@ -1,126 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package parse
-
-import (
- "fmt"
- "log"
- "strings"
-)
-
-// Rlog contains the processed logs
-type Rlog struct {
- Logs []*Logmsg // In the order in the log file
- ServerCall map[string]*Logmsg // ID->Request, client->server
- ServerReply map[string]*Logmsg // ID->Response, server->client (includes Errors)
- ClientCall map[string]*Logmsg
- ClientReply map[string]*Logmsg
- ClientNotifs []*Logmsg
- ServerNotifs []*Logmsg
- Histogram *LogHist
-}
-
-func newRlog(x []*Logmsg) *Rlog {
- return &Rlog{Logs: x,
- ServerCall: make(map[string]*Logmsg),
- ServerReply: make(map[string]*Logmsg),
- ClientCall: make(map[string]*Logmsg),
- ClientReply: make(map[string]*Logmsg),
- ClientNotifs: []*Logmsg{},
- ServerNotifs: []*Logmsg{},
- Histogram: &LogHist{},
- }
-}
-
-// Counts returns a one-line summary of an Rlog
-func (r *Rlog) Counts() string {
- return fmt.Sprintf("logs:%d srvC:%d srvR:%d clC:%d clR:%d clN:%d srvN:%d",
- len(r.Logs),
- len(r.ServerCall), len(r.ServerReply), len(r.ClientCall), len(r.ClientReply),
- len(r.ClientNotifs), len(r.ServerNotifs))
-}
-
-// ToRlog reads a log file and returns a *Rlog
-func ToRlog(fname string) (*Rlog, error) {
- x, err := ReadLogs(fname)
- if err != nil {
- return nil, err
- }
- ans := newRlog(x)
- for _, l := range x {
- switch l.Type {
- case ClRequest:
- ans.ServerCall[l.ID] = l
- case ClResponse:
- ans.ServerReply[l.ID] = l
- if l.Type != ReportErr {
- n := 0
- fmt.Sscanf(l.Elapsed, "%d", &n)
- ans.Histogram.add(n)
- }
- case SvRequest:
- ans.ClientCall[l.ID] = l
- case SvResponse:
- ans.ClientReply[l.ID] = l
- case ToClient:
- ans.ClientNotifs = append(ans.ClientNotifs, l)
- case ToServer:
- ans.ServerNotifs = append(ans.ServerNotifs, l)
- case ReportErr:
- ans.ServerReply[l.ID] = l
- l.Method = ans.ServerCall[l.ID].Method // Method not in log message
- default:
- log.Fatalf("eh? %s/%s (%s)", l.Type, l.Method, l.ID)
- }
- }
- return ans, nil
-}
-
-// LogHist gets ints, and puts them into buckets:
-// <=10, <=30, 100, 300, 1000, ...
-// It produces a historgram of elapsed times in milliseconds
-type LogHist struct {
- cnts []int
-}
-
-func (l *LogHist) add(n int) {
- if n < 0 {
- n = 0
- }
- bucket := 0
- for ; n > 0; n /= 10 {
- if n < 10 {
- break
- }
- if n < 30 {
- bucket++
- break
- }
- bucket += 2
- }
- if len(l.cnts) <= bucket {
- for j := len(l.cnts); j < bucket+10; j++ {
- l.cnts = append(l.cnts, 0)
- }
- }
- l.cnts[bucket]++
-}
-
-// String returns a string describing a histogram
-func (l *LogHist) String() string {
- top := len(l.cnts) - 1
- for ; top > 0 && l.cnts[top] == 0; top-- {
- }
- labs := []string{"10", "30"}
- out := strings.Builder{}
- out.WriteByte('[')
- for i := 0; i <= top; i++ {
- label := labs[i%2]
- labs[i%2] += "0"
- fmt.Fprintf(&out, "%s:%d ", label, l.cnts[i])
- }
- out.WriteByte(']')
- return out.String()
-}
diff --git a/gopls/integration/replay/README.md b/gopls/integration/replay/README.md
deleted file mode 100644
index 7c32277..0000000
--- a/gopls/integration/replay/README.md
+++ /dev/null
@@ -1,79 +0,0 @@
-# Replaying Logs
-
-The LSP log replayer takes a log from a gopls session, starts up an instance of gopls,
-and tries to replay the session. It produces a log from the replayed session and reports
-some comparative statistics of the two logs.
-
-```replay -log <logfile>```
-
-The `logfile` should be the log produced by gopls. It will have a name like
-`/tmp/gopls-89775` or, on a Mac, `$TMPDIR/gopls-29388`.
-
-If `replay` cannot find a copy of gopls to execute, use `-cmd <path to gopls>`.
-It looks in the same places where `go install` would put its output,
-namely `$GOBIN/gopls`, `$GOPATH/bin/gopls`, `$HOME/go/bin/gopls`.
-
-The log for the replayed session is saved in `/tmp/seen`.
-
-There is also a boolean argument `-cmp` which compares the log file
-with `/tmp/seen` without invoking gopls and rerunning the session.
-
-The output is fairly cryptic, and generated by logging. Ideas for better output would be welcome.
-Here's an example, with intermingled comments:
-
-```
-main.go:50: old 1856, hist:[10:177 30:1 100:0 300:3 1000:4 ]
-```
-This says that the original log had 1856 records in it. The histogram is
-counting how long RPCs took, in milliseconds. In this case 177 took no more
-than 10ms, and 4 took between 300ms and 1000ms.
-```
-main.go:53: calling mimic
-main.go:293: mimic 1856
-```
-This is a reminder that it's replaying in a new session, with a log file
-containing 1856 records
-```
-main.go:61: new 1846, hist:[10:181 30:1 100:1 300:1 1000:1 ]
-```
-The new session produced 1846 log records (that's 10 fewer),
-and a vaguely similar histogram.
-```
-main.go:96: old: clrequest:578 clresponse:185 svrequest:2 svresponse:2 toserver:244 toclient:460 reporterr:385
-main.go:96: new: clrequest:571 clresponse:185 svrequest:2 svresponse:2 toserver:241 toclient:460 reporterr:385
-```
-The first line is for the original log, the second for the new log. The new log has 7 fewer RPC requests
-from the client *clrequest* (578 vs 571), the same number of client responses *clresponse*, 3 fewer
-notifications *toserver* from the client, the same number from the server *toclient* to the client, and
-the same number of errors *reporterr*. (That's mysterious, but a look at the ends of the log files shows
-that the original session ended with several RPCs that don't show up, for whatever reason, in the new session.)
-
-Finally, there are counts of the various notifications seen, in the new log and the old log, and
-which direction they went. (The 3 fewer notifications in the summary above can be seen here to be from cancels
-and a didChange.)
-```
-main.go:107: counts of notifications
-main.go:110: '$/cancelRequest'. new toserver 1
-main.go:110: '$/cancelRequest'. old toserver 3
-main.go:110: 'initialized'. new toserver 1
-main.go:110: 'initialized'. old toserver 1
-main.go:110: 'textDocument/didChange'. new toserver 231
-main.go:110: 'textDocument/didChange'. old toserver 232
-main.go:110: 'textDocument/didOpen'. new toserver 1
-main.go:110: 'textDocument/didOpen'. old toserver 1
-main.go:110: 'textDocument/didSave'. new toserver 7
-main.go:110: 'textDocument/didSave'. old toserver 7
-main.go:110: 'textDocument/publishDiagnostics'. new toclient 182
-main.go:110: 'textDocument/publishDiagnostics'. old toclient 182
-main.go:110: 'window/logMessage'. new toclient 278
-main.go:110: 'window/logMessage'. old toclient 278
-```
-### Caveats
-Replay cannot restore the exact environment gopls saw for the original session.
-For instance, the first didOpen message in the new session will see the file
-as it was left by the original session.
-
-Gopls invokes various tools, and the environment they see could have changed too.
-
-Replay will use the gopls it finds (or is given). It has no way of using
-the same version that created the original session.
diff --git a/gopls/integration/replay/main.go b/gopls/integration/replay/main.go
deleted file mode 100644
index 35cd1d5..0000000
--- a/gopls/integration/replay/main.go
+++ /dev/null
@@ -1,292 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Replay logs. See README.md
-package main
-
-import (
- "bufio"
- "context"
- "flag"
- "fmt"
- exec "golang.org/x/sys/execabs"
- "log"
- "os"
- "sort"
- "strconv"
- "strings"
-
- "golang.org/x/tools/gopls/integration/parse"
- "golang.org/x/tools/internal/fakenet"
- "golang.org/x/tools/internal/jsonrpc2"
- p "golang.org/x/tools/internal/lsp/protocol"
-)
-
-var (
- command = flag.String("cmd", "", "location of server to send to, looks for gopls")
- cmp = flag.Bool("cmp", false, "only compare log and /tmp/seen")
- logrdr *bufio.Scanner
- msgs []*parse.Logmsg
- // requests and responses/errors, by id
- clreq = make(map[string]*parse.Logmsg)
- clresp = make(map[string]*parse.Logmsg)
- svreq = make(map[string]*parse.Logmsg)
- svresp = make(map[string]*parse.Logmsg)
-)
-
-func main() {
- log.SetFlags(log.Lshortfile)
- flag.Usage = func() {
- fmt.Fprintln(flag.CommandLine.Output(), "replay [options] <logfile>")
- flag.PrintDefaults()
- }
- flag.Parse()
- if flag.NArg() != 1 {
- flag.Usage()
- os.Exit(2)
- }
- logf := flag.Arg(0)
-
- orig, err := parse.ToRlog(logf)
- if err != nil {
- log.Fatalf("error parsing logfile %q: %v", logf, err)
- }
- ctx := context.Background()
- msgs = orig.Logs
- log.Printf("old %d, hist:%s", len(msgs), orig.Histogram)
-
- if !*cmp {
- log.Print("calling mimic")
- mimic(ctx)
- }
- seen, err := parse.ToRlog("/tmp/seen")
- if err != nil {
- log.Fatal(err)
- }
- newMsgs := seen.Logs
- log.Printf("new %d, hist:%s", len(newMsgs), seen.Histogram)
-
- ok := make(map[string]int)
- f := func(x []*parse.Logmsg, label string, diags map[p.DocumentURI][]p.Diagnostic) {
- counts := make(map[parse.MsgType]int)
- for _, l := range x {
- if l.Method == "window/logMessage" {
- // don't care
- //continue
- }
- if l.Method == "textDocument/publishDiagnostics" {
- v, ok := l.Body.(*p.PublishDiagnosticsParams)
- if !ok {
- log.Fatalf("got %T expected PublishDiagnosticsParams", l.Body)
- }
- diags[v.URI] = v.Diagnostics
- }
- counts[l.Type]++
- // notifications only
- if l.Type != parse.ToServer && l.Type != parse.ToClient {
- continue
- }
- s := fmt.Sprintf("%s %s %s", strings.Replace(l.Hdr, "\r", "", -1), label, l.Type)
- if i := strings.Index(s, "notification"); i != -1 {
- s = s[i+12:]
- }
- if len(s) > 120 {
- s = s[:120]
- }
- ok[s]++
- }
- msg := ""
- for i := parse.ClRequest; i <= parse.ReportErr; i++ {
- msg += fmt.Sprintf("%s:%d ", i, counts[i])
- }
- log.Printf("%s: %s", label, msg)
- }
- mdiags := make(map[p.DocumentURI][]p.Diagnostic)
- f(msgs, "old", mdiags)
- vdiags := make(map[p.DocumentURI][]p.Diagnostic)
- f(newMsgs, "new", vdiags)
- buf := []string{}
- for k := range ok {
- buf = append(buf, fmt.Sprintf("%s %d", k, ok[k]))
- }
- if len(buf) > 0 {
- log.Printf("counts of notifications")
- sort.Strings(buf)
- for _, k := range buf {
- log.Print(k)
- }
- }
- buf = buf[0:0]
- for k, v := range mdiags {
- va := vdiags[k]
- if len(v) != len(va) {
- buf = append(buf, fmt.Sprintf("new has %d, old has %d for %s",
- len(va), len(v), k))
- }
- }
- for ka := range vdiags {
- if _, ok := mdiags[ka]; !ok {
- buf = append(buf, fmt.Sprintf("new diagnostics, but no old ones, for %s",
- ka))
- }
- }
- if len(buf) > 0 {
- log.Print("diagnostics differ:")
- for _, s := range buf {
- log.Print(s)
- }
- }
-}
-
-func send(ctx context.Context, l *parse.Logmsg, stream jsonrpc2.Stream, id *jsonrpc2.ID) {
- if id == nil {
- // need to use the number version of ID
- n, err := strconv.Atoi(l.ID)
- if err != nil {
- n = 0
- }
- nid := jsonrpc2.NewIntID(int64(n))
- id = &nid
- }
- var msg jsonrpc2.Message
- var err error
- switch l.Type {
- case parse.ClRequest:
- msg, err = jsonrpc2.NewCall(*id, l.Method, l.Body)
- case parse.SvResponse:
- msg, err = jsonrpc2.NewResponse(*id, l.Body, nil)
- case parse.ToServer:
- msg, err = jsonrpc2.NewNotification(l.Method, l.Body)
- default:
- log.Fatalf("sending %s", l.Type)
- }
- if err != nil {
- log.Fatal(err)
- }
- stream.Write(ctx, msg)
-}
-
-func respond(ctx context.Context, c *jsonrpc2.Call, stream jsonrpc2.Stream) {
- // c is a server request
- // pick out the id, and look for the response in msgs
- id := c.ID()
- idstr := fmt.Sprint(id)
- for _, l := range msgs {
- if l.ID == idstr && l.Type == parse.SvResponse {
- // check that the methods match?
- // need to send back the same ID we got.
- send(ctx, l, stream, &id)
- return
- }
- }
- log.Fatalf("no response found %q %+v %+v", c.Method(), c.ID(), c)
-}
-
-func findgopls() string {
- totry := [][]string{{"GOBIN", "/gopls"}, {"GOPATH", "/bin/gopls"}, {"HOME", "/go/bin/gopls"}}
- // looks in the places go install would install:
- // GOBIN, else GOPATH/bin, else HOME/go/bin
- ok := func(s string) bool {
- fd, err := os.Open(s)
- if err != nil {
- return false
- }
- fi, err := fd.Stat()
- if err != nil {
- return false
- }
- return fi.Mode()&0111 != 0
- }
- for _, t := range totry {
- g := os.Getenv(t[0])
- if g != "" && ok(g+t[1]) {
- gopls := g + t[1]
- log.Printf("using gopls at %s", gopls)
- return gopls
- }
- }
- log.Fatal("could not find gopls")
- return ""
-}
-
-func mimic(ctx context.Context) {
- log.Printf("mimic %d", len(msgs))
- if *command == "" {
- *command = findgopls()
- }
- cmd := exec.Command(*command, "-logfile", "/tmp/seen", "-rpc.trace")
- toServer, err := cmd.StdinPipe()
- if err != nil {
- log.Fatal(err)
- }
- fromServer, err := cmd.StdoutPipe()
- if err != nil {
- log.Fatal(err)
- }
- err = cmd.Start()
- if err != nil {
- log.Fatal(err)
- }
- conn := fakenet.NewConn("stdio", fromServer, toServer)
- stream := jsonrpc2.NewHeaderStream(conn)
- rchan := make(chan jsonrpc2.Message, 10) // do we need buffering?
- rdr := func() {
- for {
- msg, _, err := stream.Read(ctx)
- if err != nil {
- rchan <- nil // close it instead?
- return
- }
- rchan <- msg
- }
- }
- go rdr()
- // send as many as possible: all clrequests and toservers up to a clresponse
- // and loop
- seenids := make(map[string]bool) // id's that have been responded to:
-big:
- for _, l := range msgs {
- switch l.Type {
- case parse.ToServer: // just send these as we get to them
- send(ctx, l, stream, nil)
- case parse.ClRequest:
- send(ctx, l, stream, nil) // for now, wait for a response, to make sure code is ok
- fallthrough
- case parse.ClResponse, parse.ReportErr: // don't go past these until they're received
- if seenids[l.ID] {
- break // onward, as it has been received already
- }
- done:
- for {
- msg := <-rchan
- if msg == nil {
- break big
- }
- // if it's svrequest, do something
- // if it's clresponse or reporterr, add to seenids, and if it
- // is l.id, break out of the loop, and continue the outer loop
-
- switch msg := msg.(type) {
- case *jsonrpc2.Call:
- if parse.FromServer(msg.Method()) {
- respond(ctx, msg, stream)
- continue done // still waiting
- }
- case *jsonrpc2.Response:
- id := fmt.Sprint(msg.ID())
- seenids[id] = true
- if id == l.ID {
- break done
- }
- }
- }
- case parse.SvRequest: // not ours to send
- continue
- case parse.SvResponse: // sent by us, if the request arrives
- continue
- case parse.ToClient: // we don't send these
- continue
- }
- }
-}
diff --git a/gopls/internal/coverage/coverage.go b/gopls/internal/coverage/coverage.go
new file mode 100644
index 0000000..7bb3640
--- /dev/null
+++ b/gopls/internal/coverage/coverage.go
@@ -0,0 +1,261 @@
+// Copyright 2021 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build go.1.16
+// +build go.1.16
+
+// Running this program in the tools directory will produce a coverage file /tmp/cover.out
+// and a coverage report for all the packages under internal/lsp, accumulated by all the tests
+// under gopls.
+//
+// -o controls where the coverage file is written, defaulting to /tmp/cover.out
+// -i coverage-file will generate the report from an existing coverage file
+// -v controls verbosity (0: only report coverage, 1: report as each directory is finished,
+// 2: report on each test, 3: more details, 4: too much)
+// -t tests only tests packages in the given comma-separated list of directories in gopls.
+// The names should start with ., as in ./internal/regtest/bench
+// -run tests. If set, -run tests is passed on to the go test command.
+//
+// Despite gopls' use of goroutines, the counts are almost deterministic.
+package main
+
+import (
+ "bytes"
+ "encoding/json"
+ "flag"
+ "fmt"
+ "log"
+ "os"
+ "os/exec"
+ "path/filepath"
+ "sort"
+ "strings"
+ "time"
+
+ "golang.org/x/tools/cover"
+)
+
+var (
+ proFile = flag.String("i", "", "existing profile file")
+ outFile = flag.String("o", "/tmp/cover.out", "where to write the coverage file")
+ verbose = flag.Int("v", 0, "how much detail to print as tests are running")
+ tests = flag.String("t", "", "list of tests to run")
+ run = flag.String("run", "", "value of -run to pass to go test")
+)
+
+func main() {
+ log.SetFlags(log.Lshortfile)
+ flag.Parse()
+
+ if *proFile != "" {
+ report(*proFile)
+ return
+ }
+
+ checkCwd()
+ // find the packages under gopls containing tests
+ tests := listDirs("gopls")
+ tests = onlyTests(tests)
+ tests = realTestName(tests)
+
+ // report coverage for packages under internal/lsp
+ parg := "golang.org/x/tools/internal/lsp/..."
+
+ accum := []string{}
+ seen := make(map[string]bool)
+ now := time.Now()
+ for _, toRun := range tests {
+ if excluded(toRun) {
+ continue
+ }
+ x := runTest(toRun, parg)
+ if *verbose > 0 {
+ fmt.Printf("finished %s %.1fs\n", toRun, time.Since(now).Seconds())
+ }
+ lines := bytes.Split(x, []byte{'\n'})
+ for _, l := range lines {
+ if len(l) == 0 {
+ continue
+ }
+ if !seen[string(l)] {
+ // not accumulating counts, so only works for mode:set
+ seen[string(l)] = true
+ accum = append(accum, string(l))
+ }
+ }
+ }
+ sort.Strings(accum[1:])
+ if err := os.WriteFile(*outFile, []byte(strings.Join(accum, "\n")), 0644); err != nil {
+ log.Print(err)
+ }
+ report(*outFile)
+}
+
+type result struct {
+ Time time.Time
+ Test string
+ Action string
+ Package string
+ Output string
+ Elapsed float64
+}
+
+func runTest(tName, parg string) []byte {
+ args := []string{"test", "-short", "-coverpkg", parg, "-coverprofile", *outFile,
+ "-json"}
+ if *run != "" {
+ args = append(args, fmt.Sprintf("-run=%s", *run))
+ }
+ args = append(args, tName)
+ cmd := exec.Command("go", args...)
+ cmd.Dir = "./gopls"
+ ans, err := cmd.Output()
+ if *verbose > 1 {
+ got := strings.Split(string(ans), "\n")
+ for _, g := range got {
+ if g == "" {
+ continue
+ }
+ var m result
+ if err := json.Unmarshal([]byte(g), &m); err != nil {
+ log.Printf("%T/%v", err, err) // shouldn't happen
+ continue
+ }
+ maybePrint(m)
+ }
+ }
+ if err != nil {
+ log.Printf("%s: %q, cmd=%s", tName, ans, cmd.String())
+ }
+ buf, err := os.ReadFile(*outFile)
+ if err != nil {
+ log.Fatal(err)
+ }
+ return buf
+}
+
+func report(fn string) {
+ profs, err := cover.ParseProfiles(fn)
+ if err != nil {
+ log.Fatal(err)
+ }
+ for _, p := range profs {
+ statements, counts := 0, 0
+ for _, x := range p.Blocks {
+ statements += x.NumStmt
+ if x.Count != 0 {
+ counts += x.NumStmt // sic: if any were executed, all were
+ }
+ }
+ pc := 100 * float64(counts) / float64(statements)
+ fmt.Printf("%3.0f%% %3d/%3d %s\n", pc, counts, statements, p.FileName)
+ }
+}
+
+var todo []string // tests to run
+
+func excluded(tname string) bool {
+ if *tests == "" { // run all tests
+ return false
+ }
+ if todo == nil {
+ todo = strings.Split(*tests, ",")
+ }
+ for _, nm := range todo {
+ if tname == nm { // run this test
+ return false
+ }
+ }
+ // not in list, skip it
+ return true
+}
+
+// should m.Package be printed sometime?
+func maybePrint(m result) {
+ switch m.Action {
+ case "pass", "fail", "skip":
+ fmt.Printf("%s %s %.3f\n", m.Action, m.Test, m.Elapsed)
+ case "run":
+ if *verbose > 2 {
+ fmt.Printf("%s %s %.3f\n", m.Action, m.Test, m.Elapsed)
+ }
+ case "output":
+ if *verbose > 3 {
+ fmt.Printf("%s %s %q %.3f\n", m.Action, m.Test, m.Output, m.Elapsed)
+ }
+ default:
+ log.Fatalf("unknown action %s\n", m.Action)
+ }
+}
+
+// return only the directories that contain tests
+func onlyTests(s []string) []string {
+ ans := []string{}
+outer:
+ for _, d := range s {
+ files, err := os.ReadDir(d)
+ if err != nil {
+ log.Fatalf("%s: %v", d, err)
+ }
+ for _, de := range files {
+ if strings.Contains(de.Name(), "_test.go") {
+ ans = append(ans, d)
+ continue outer
+ }
+ }
+ }
+ return ans
+}
+
+// replace the prefix gopls/ with ./ as the tests are run in the gopls directory
+func realTestName(p []string) []string {
+ ans := []string{}
+ for _, x := range p {
+ x = x[len("gopls/"):]
+ ans = append(ans, "./"+x)
+ }
+ return ans
+}
+
+// make sure we start in a tools directory
+func checkCwd() {
+ dir, err := os.Getwd()
+ if err != nil {
+ log.Fatal(err)
+ }
+ // we expect to be a the root of golang.org/x/tools
+ cmd := exec.Command("go", "list", "-m", "-f", "{{.Dir}}", "golang.org/x/tools")
+ buf, err := cmd.Output()
+ buf = bytes.Trim(buf, "\n \t") // remove \n at end
+ if err != nil {
+ log.Fatal(err)
+ }
+ if string(buf) != dir {
+ log.Fatalf("wrong directory: in %q, should be in %q", dir, string(buf))
+ }
+ // and we expect gopls and internal/lsp as subdirectories
+ _, err = os.Stat("gopls")
+ if err != nil {
+ log.Fatalf("expected a gopls directory, %v", err)
+ }
+ _, err = os.Stat("internal/lsp")
+ if err != nil {
+ log.Fatalf("expected to see internal/lsp, %v", err)
+ }
+}
+
+func listDirs(dir string) []string {
+ ans := []string{}
+ f := func(path string, dirEntry os.DirEntry, err error) error {
+ if strings.HasSuffix(path, "/testdata") || strings.HasSuffix(path, "/typescript") {
+ return filepath.SkipDir
+ }
+ if dirEntry.IsDir() {
+ ans = append(ans, path)
+ }
+ return nil
+ }
+ filepath.WalkDir(dir, f)
+ return ans
+}
diff --git a/gopls/internal/regtest/codelens/codelens_test.go b/gopls/internal/regtest/codelens/codelens_test.go
index 88d0e04..87d0863 100644
--- a/gopls/internal/regtest/codelens/codelens_test.go
+++ b/gopls/internal/regtest/codelens/codelens_test.go
@@ -275,9 +275,6 @@
}
func TestGCDetails(t *testing.T) {
- if testing.Short() {
- t.Skip("Flaky test -- see golang.org/issue/44099")
- }
testenv.NeedsGo1Point(t, 15)
if runtime.GOOS == "android" {
t.Skipf("the gc details code lens doesn't work on Android")
diff --git a/gopls/internal/regtest/completion/postfix_snippet_test.go b/gopls/internal/regtest/completion/postfix_snippet_test.go
new file mode 100644
index 0000000..4c59ef9
--- /dev/null
+++ b/gopls/internal/regtest/completion/postfix_snippet_test.go
@@ -0,0 +1,402 @@
+// Copyright 2021 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package completion
+
+import (
+ "strings"
+ "testing"
+
+ . "golang.org/x/tools/gopls/internal/regtest"
+ "golang.org/x/tools/internal/lsp/source"
+)
+
+func TestPostfixSnippetCompletion(t *testing.T) {
+ const mod = `
+-- go.mod --
+module mod.com
+
+go 1.12
+`
+
+ cases := []struct {
+ name string
+ before, after string
+ }{
+ {
+ name: "sort",
+ before: `
+package foo
+
+func _() {
+ var foo []int
+ foo.sort
+}
+`,
+ after: `
+package foo
+
+import "sort"
+
+func _() {
+ var foo []int
+ sort.Slice(foo, func(i, j int) bool {
+ $0
+})
+}
+`,
+ },
+ {
+ name: "sort_renamed_sort_package",
+ before: `
+package foo
+
+import blahsort "sort"
+
+var j int
+
+func _() {
+ var foo []int
+ foo.sort
+}
+`,
+ after: `
+package foo
+
+import blahsort "sort"
+
+var j int
+
+func _() {
+ var foo []int
+ blahsort.Slice(foo, func(i, j2 int) bool {
+ $0
+})
+}
+`,
+ },
+ {
+ name: "last",
+ before: `
+package foo
+
+func _() {
+ var s struct { i []int }
+ s.i.last
+}
+`,
+ after: `
+package foo
+
+func _() {
+ var s struct { i []int }
+ s.i[len(s.i)-1]
+}
+`,
+ },
+ {
+ name: "reverse",
+ before: `
+package foo
+
+func _() {
+ var foo []int
+ foo.reverse
+}
+`,
+ after: `
+package foo
+
+func _() {
+ var foo []int
+ for i, j := 0, len(foo)-1; i < j; i, j = i+1, j-1 {
+ foo[i], foo[j] = foo[j], foo[i]
+}
+
+}
+`,
+ },
+ {
+ name: "slice_range",
+ before: `
+package foo
+
+func _() {
+ type myThing struct{}
+ var foo []myThing
+ foo.range
+}
+`,
+ after: `
+package foo
+
+func _() {
+ type myThing struct{}
+ var foo []myThing
+ for i, mt := range foo {
+ $0
+}
+}
+`,
+ },
+ {
+ name: "append_stmt",
+ before: `
+package foo
+
+func _() {
+ var foo []int
+ foo.append
+}
+`,
+ after: `
+package foo
+
+func _() {
+ var foo []int
+ foo = append(foo, $0)
+}
+`,
+ },
+ {
+ name: "append_expr",
+ before: `
+package foo
+
+func _() {
+ var foo []int
+ var _ []int = foo.append
+}
+`,
+ after: `
+package foo
+
+func _() {
+ var foo []int
+ var _ []int = append(foo, $0)
+}
+`,
+ },
+ {
+ name: "slice_copy",
+ before: `
+package foo
+
+func _() {
+ var foo []int
+ foo.copy
+}
+`,
+ after: `
+package foo
+
+func _() {
+ var foo []int
+ fooCopy := make([]int, len(foo))
+copy(fooCopy, foo)
+
+}
+`,
+ },
+ {
+ name: "map_range",
+ before: `
+package foo
+
+func _() {
+ var foo map[string]int
+ foo.range
+}
+`,
+ after: `
+package foo
+
+func _() {
+ var foo map[string]int
+ for k, v := range foo {
+ $0
+}
+}
+`,
+ },
+ {
+ name: "map_clear",
+ before: `
+package foo
+
+func _() {
+ var foo map[string]int
+ foo.clear
+}
+`,
+ after: `
+package foo
+
+func _() {
+ var foo map[string]int
+ for k := range foo {
+ delete(foo, k)
+}
+
+}
+`,
+ },
+ {
+ name: "map_keys",
+ before: `
+package foo
+
+func _() {
+ var foo map[string]int
+ foo.keys
+}
+`,
+ after: `
+package foo
+
+func _() {
+ var foo map[string]int
+ keys := make([]string, 0, len(foo))
+for k := range foo {
+ keys = append(keys, k)
+}
+
+}
+`,
+ },
+ {
+ name: "var",
+ before: `
+package foo
+
+func foo() (int, error) { return 0, nil }
+
+func _() {
+ foo().var
+}
+`,
+ after: `
+package foo
+
+func foo() (int, error) { return 0, nil }
+
+func _() {
+ i, err := foo()
+}
+`,
+ },
+ {
+ name: "var_single_value",
+ before: `
+package foo
+
+func foo() error { return nil }
+
+func _() {
+ foo().var
+}
+`,
+ after: `
+package foo
+
+func foo() error { return nil }
+
+func _() {
+ err := foo()
+}
+`,
+ },
+ {
+ name: "var_same_type",
+ before: `
+package foo
+
+func foo() (int, int) { return 0, 0 }
+
+func _() {
+ foo().var
+}
+`,
+ after: `
+package foo
+
+func foo() (int, int) { return 0, 0 }
+
+func _() {
+ i, i2 := foo()
+}
+`,
+ },
+ {
+ name: "print_scalar",
+ before: `
+package foo
+
+func _() {
+ var foo int
+ foo.print
+}
+`,
+ after: `
+package foo
+
+import "fmt"
+
+func _() {
+ var foo int
+ fmt.Printf("foo: %v\n", foo)
+}
+`,
+ },
+ {
+ name: "print_multi",
+ before: `
+package foo
+
+func foo() (int, error) { return 0, nil }
+
+func _() {
+ foo().print
+}
+`,
+ after: `
+package foo
+
+import "fmt"
+
+func foo() (int, error) { return 0, nil }
+
+func _() {
+ fmt.Println(foo())
+}
+`,
+ },
+ }
+
+ r := WithOptions(Options(func(o *source.Options) {
+ o.ExperimentalPostfixCompletions = true
+ }))
+ r.Run(t, mod, func(t *testing.T, env *Env) {
+ for _, c := range cases {
+ t.Run(c.name, func(t *testing.T) {
+ c.before = strings.Trim(c.before, "\n")
+ c.after = strings.Trim(c.after, "\n")
+
+ env.CreateBuffer("foo.go", c.before)
+
+ pos := env.RegexpSearch("foo.go", "\n}")
+ completions := env.Completion("foo.go", pos)
+ if len(completions.Items) != 1 {
+ t.Fatalf("expected one completion, got %v", completions.Items)
+ }
+
+ env.AcceptCompletion("foo.go", pos, completions.Items[0])
+
+ if buf := env.Editor.BufferText("foo.go"); buf != c.after {
+ t.Errorf("\nGOT:\n%s\nEXPECTED:\n%s", buf, c.after)
+ }
+ })
+ }
+ })
+}
diff --git a/gopls/internal/regtest/diagnostics/diagnostics_test.go b/gopls/internal/regtest/diagnostics/diagnostics_test.go
index 1d7cb09..3a4beee 100644
--- a/gopls/internal/regtest/diagnostics/diagnostics_test.go
+++ b/gopls/internal/regtest/diagnostics/diagnostics_test.go
@@ -572,12 +572,8 @@
WithOptions(EditorConfig{
Env: map[string]string{"GO111MODULE": go111module},
}).Run(t, files, func(t *testing.T, env *Env) {
- env.OpenFile("hello.txt")
env.Await(
- OnceMet(
- env.DoneWithOpen(),
- NoShowMessage(),
- ),
+ NoOutstandingWork(),
)
})
})
@@ -603,7 +599,14 @@
fmt.Println("")
}
`
- WithOptions(InGOPATH()).Run(t, collision, func(t *testing.T, env *Env) {
+ WithOptions(
+ InGOPATH(),
+ EditorConfig{
+ Env: map[string]string{
+ "GO111MODULE": "off",
+ },
+ },
+ ).Run(t, collision, func(t *testing.T, env *Env) {
env.OpenFile("x/x.go")
env.Await(
env.DiagnosticAtRegexpWithMessage("x/x.go", `^`, "found packages main (main.go) and x (x.go)"),
@@ -898,24 +901,6 @@
})
}
-// Reproduces golang/go#40825.
-func TestEmptyGOPATHXTest_40825(t *testing.T) {
- const files = `
--- x.go --
-package x
--- x_test.go --
-`
-
- WithOptions(InGOPATH()).Run(t, files, func(t *testing.T, env *Env) {
- env.OpenFile("x_test.go")
- env.EditBuffer("x_test.go", fake.NewEdit(0, 0, 0, 0, "pack"))
- env.Await(
- env.DoneWithChange(),
- NoShowMessage(),
- )
- })
-}
-
func TestIgnoredFiles(t *testing.T) {
const ws = `
-- go.mod --
@@ -1491,6 +1476,11 @@
WithOptions(
ProxyFiles(proxy),
InGOPATH(),
+ EditorConfig{
+ Env: map[string]string{
+ "GO111MODULE": "off",
+ },
+ },
).Run(t, contents, func(t *testing.T, env *Env) {
// Simulate typing character by character.
env.OpenFile("foo/foo_test.go")
@@ -1863,6 +1853,29 @@
})
}
+func TestInitialization(t *testing.T) {
+ const files = `
+-- go.mod --
+module mod.com
+
+go 1.16
+-- main.go --
+package main
+`
+ Run(t, files, func(t *testing.T, env *Env) {
+ env.OpenFile("go.mod")
+ env.Await(env.DoneWithOpen())
+ env.RegexpReplace("go.mod", "module", "modul")
+ env.SaveBufferWithoutActions("go.mod")
+ env.Await(
+ OnceMet(
+ env.DoneWithSave(),
+ NoLogMatching(protocol.Error, "initial workspace load failed"),
+ ),
+ )
+ })
+}
+
// Tests golang/go#45075, a panic in fillreturns breaks diagnostics.
func TestFillReturnsPanic(t *testing.T) {
// At tip, the panic no longer reproduces.
diff --git a/gopls/internal/regtest/env.go b/gopls/internal/regtest/env.go
index 322799d..3c41066 100644
--- a/gopls/internal/regtest/env.go
+++ b/gopls/internal/regtest/env.go
@@ -282,8 +282,9 @@
e.mu.Unlock()
return
case Unmeetable:
+ failure := fmt.Sprintf("unmeetable expectations:\n%s\nstate:\n%v", summary, e.state)
e.mu.Unlock()
- e.T.Fatalf("unmeetable expectations:\n%s\nstate:\n%v", summary, e.state)
+ e.T.Fatal(failure)
}
cond := &condition{
expectations: expectations,
diff --git a/gopls/internal/regtest/expectation.go b/gopls/internal/regtest/expectation.go
index 02e00dd..f86bcb6 100644
--- a/gopls/internal/regtest/expectation.go
+++ b/gopls/internal/regtest/expectation.go
@@ -582,8 +582,9 @@
return DiagnosticExpectation{path: name, message: msg, present: false}
}
-// GoSum asserts that a "go.sum is out of sync" diagnostic for the given module
-// (as formatted in a go.mod file, e.g. "example.com v1.0.0") is present.
+// GoSumDiagnostic asserts that a "go.sum is out of sync" diagnostic for the
+// given module (as formatted in a go.mod file, e.g. "example.com v1.0.0") is
+// present.
func (e *Env) GoSumDiagnostic(name, module string) Expectation {
e.T.Helper()
// In 1.16, go.sum diagnostics should appear on the relevant module. Earlier
diff --git a/gopls/internal/regtest/misc/fix_test.go b/gopls/internal/regtest/misc/fix_test.go
index 395bfd8..9225a83 100644
--- a/gopls/internal/regtest/misc/fix_test.go
+++ b/gopls/internal/regtest/misc/fix_test.go
@@ -81,6 +81,25 @@
env.DiagnosticAtRegexpWithMessage("main.go", `return`, "wrong number of return values"),
ReadDiagnostics("main.go", &d),
))
+ codeActions := env.CodeAction("main.go", d.Diagnostics)
+ if len(codeActions) != 2 {
+ t.Fatalf("expected 2 code actions, got %v", len(codeActions))
+ }
+ var foundQuickFix, foundFixAll bool
+ for _, a := range codeActions {
+ if a.Kind == protocol.QuickFix {
+ foundQuickFix = true
+ }
+ if a.Kind == protocol.SourceFixAll {
+ foundFixAll = true
+ }
+ }
+ if !foundQuickFix {
+ t.Fatalf("expected quickfix code action, got none")
+ }
+ if !foundFixAll {
+ t.Fatalf("expected fixall code action, got none")
+ }
env.ApplyQuickFixes("main.go", d.Diagnostics)
env.Await(EmptyDiagnostics("main.go"))
})
diff --git a/gopls/internal/regtest/misc/highlight_test.go b/gopls/internal/regtest/misc/highlight_test.go
new file mode 100644
index 0000000..56e6116
--- /dev/null
+++ b/gopls/internal/regtest/misc/highlight_test.go
@@ -0,0 +1,151 @@
+// Copyright 2021 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package misc
+
+import (
+ "sort"
+ "testing"
+
+ . "golang.org/x/tools/gopls/internal/regtest"
+ "golang.org/x/tools/internal/lsp/fake"
+ "golang.org/x/tools/internal/lsp/protocol"
+)
+
+func TestWorkspacePackageHighlight(t *testing.T) {
+ const mod = `
+-- go.mod --
+module mod.com
+
+go 1.12
+-- main.go --
+package main
+
+func main() {
+ var A string = "A"
+ x := "x-" + A
+ println(A, x)
+}`
+
+ Run(t, mod, func(t *testing.T, env *Env) {
+ const file = "main.go"
+ env.OpenFile(file)
+ _, pos := env.GoToDefinition(file, env.RegexpSearch(file, `var (A) string`))
+
+ checkHighlights(env, file, pos, 3)
+ })
+}
+
+func TestStdPackageHighlight_Issue43511(t *testing.T) {
+ const mod = `
+-- go.mod --
+module mod.com
+
+go 1.12
+-- main.go --
+package main
+
+import "fmt"
+
+func main() {
+ fmt.Printf()
+}`
+
+ Run(t, mod, func(t *testing.T, env *Env) {
+ env.OpenFile("main.go")
+ file, _ := env.GoToDefinition("main.go", env.RegexpSearch("main.go", `fmt\.(Printf)`))
+ pos := env.RegexpSearch(file, `func Printf\((format) string`)
+
+ checkHighlights(env, file, pos, 2)
+ })
+}
+
+func TestThirdPartyPackageHighlight_Issue43511(t *testing.T) {
+ const proxy = `
+-- example.com@v1.2.3/go.mod --
+module example.com
+
+go 1.12
+-- example.com@v1.2.3/global/global.go --
+package global
+
+const A = 1
+
+func foo() {
+ _ = A
+}
+
+func bar() int {
+ return A + A
+}
+-- example.com@v1.2.3/local/local.go --
+package local
+
+func foo() int {
+ const b = 2
+
+ return b * b * (b+1) + b
+}`
+
+ const mod = `
+-- go.mod --
+module mod.com
+
+go 1.12
+
+require example.com v1.2.3
+-- go.sum --
+example.com v1.2.3 h1:WFzrgiQJwEDJNLDUOV1f9qlasQkvzXf2UNLaNIqbWsI=
+example.com v1.2.3/go.mod h1:Y2Rc5rVWjWur0h3pd9aEvK5Pof8YKDANh9gHA2Maujo=
+-- main.go --
+package main
+
+import (
+ _ "example.com/global"
+ _ "example.com/local"
+)
+
+func main() {}`
+
+ WithOptions(
+ ProxyFiles(proxy),
+ ).Run(t, mod, func(t *testing.T, env *Env) {
+ env.OpenFile("main.go")
+
+ file, _ := env.GoToDefinition("main.go", env.RegexpSearch("main.go", `"example.com/global"`))
+ pos := env.RegexpSearch(file, `const (A)`)
+ checkHighlights(env, file, pos, 4)
+
+ file, _ = env.GoToDefinition("main.go", env.RegexpSearch("main.go", `"example.com/local"`))
+ pos = env.RegexpSearch(file, `const (b)`)
+ checkHighlights(env, file, pos, 5)
+ })
+}
+
+func checkHighlights(env *Env, file string, pos fake.Pos, highlightCount int) {
+ t := env.T
+ t.Helper()
+
+ highlights := env.DocumentHighlight(file, pos)
+ if len(highlights) != highlightCount {
+ t.Fatalf("expected %v highlight(s), got %v", highlightCount, len(highlights))
+ }
+
+ references := env.References(file, pos)
+ if len(highlights) != len(references) {
+ t.Fatalf("number of highlights and references is expected to be equal: %v != %v", len(highlights), len(references))
+ }
+
+ sort.Slice(highlights, func(i, j int) bool {
+ return protocol.CompareRange(highlights[i].Range, highlights[j].Range) < 0
+ })
+ sort.Slice(references, func(i, j int) bool {
+ return protocol.CompareRange(references[i].Range, references[j].Range) < 0
+ })
+ for i := range highlights {
+ if highlights[i].Range != references[i].Range {
+ t.Errorf("highlight and reference ranges are expected to be equal: %v != %v", highlights[i].Range, references[i].Range)
+ }
+ }
+}
diff --git a/gopls/internal/regtest/misc/imports_test.go b/gopls/internal/regtest/misc/imports_test.go
index 9a95208..2a666c4 100644
--- a/gopls/internal/regtest/misc/imports_test.go
+++ b/gopls/internal/regtest/misc/imports_test.go
@@ -74,7 +74,7 @@
Run(t, "", func(t *testing.T, env *Env) {
env.CreateBuffer("main.go", vim1)
env.OrganizeImports("main.go")
- actions := env.CodeAction("main.go")
+ actions := env.CodeAction("main.go", nil)
if len(actions) > 0 {
got := env.Editor.BufferText("main.go")
t.Errorf("unexpected actions %#v", actions)
@@ -107,7 +107,7 @@
Run(t, "", func(t *testing.T, env *Env) {
env.CreateBuffer("main.go", vim2)
env.OrganizeImports("main.go")
- actions := env.CodeAction("main.go")
+ actions := env.CodeAction("main.go", nil)
if len(actions) > 0 {
t.Errorf("unexpected actions %#v", actions)
}
diff --git a/gopls/internal/regtest/runner.go b/gopls/internal/regtest/runner.go
index a029b9c..cfa64af 100644
--- a/gopls/internal/regtest/runner.go
+++ b/gopls/internal/regtest/runner.go
@@ -70,19 +70,21 @@
}
type runConfig struct {
- editor fake.EditorConfig
- sandbox fake.SandboxConfig
- modes Mode
- timeout time.Duration
- debugAddr string
- skipLogs bool
- skipHooks bool
+ editor fake.EditorConfig
+ sandbox fake.SandboxConfig
+ modes Mode
+ timeout time.Duration
+ debugAddr string
+ skipLogs bool
+ skipHooks bool
+ optionsHook func(*source.Options)
}
func (r *Runner) defaultConfig() *runConfig {
return &runConfig{
- modes: r.DefaultModes,
- timeout: r.Timeout,
+ modes: r.DefaultModes,
+ timeout: r.Timeout,
+ optionsHook: hooks.Options,
}
}
@@ -118,6 +120,19 @@
})
}
+// Options configures the various server and user options.
+func Options(hook func(*source.Options)) RunOption {
+ return optionSetter(func(opts *runConfig) {
+ old := opts.optionsHook
+ opts.optionsHook = func(o *source.Options) {
+ if old != nil {
+ old(o)
+ }
+ hook(o)
+ }
+ })
+}
+
func SendPID() RunOption {
return optionSetter(func(opts *runConfig) {
opts.editor.SendPID = true
@@ -216,7 +231,7 @@
tests := []struct {
name string
mode Mode
- getServer func(context.Context, *testing.T) jsonrpc2.StreamServer
+ getServer func(context.Context, *testing.T, func(*source.Options)) jsonrpc2.StreamServer
}{
{"singleton", Singleton, singletonServer},
{"forwarded", Forwarded, r.forwardedServer},
@@ -268,7 +283,7 @@
// better solution to ensure that all Go processes started by gopls have
// exited before we clean up.
r.AddCloser(sandbox)
- ss := tc.getServer(ctx, t)
+ ss := tc.getServer(ctx, t, config.optionsHook)
framer := jsonrpc2.NewRawStream
ls := &loggingFramer{}
if !config.skipLogs {
@@ -367,38 +382,38 @@
fmt.Fprintf(os.Stderr, "#### End Gopls Test Logs for %q\n", testname)
}
-func singletonServer(ctx context.Context, t *testing.T) jsonrpc2.StreamServer {
- return lsprpc.NewStreamServer(cache.New(ctx, hooks.Options), false)
+func singletonServer(ctx context.Context, t *testing.T, optsHook func(*source.Options)) jsonrpc2.StreamServer {
+ return lsprpc.NewStreamServer(cache.New(optsHook), false)
}
-func experimentalWorkspaceModule(ctx context.Context, t *testing.T) jsonrpc2.StreamServer {
+func experimentalWorkspaceModule(_ context.Context, t *testing.T, optsHook func(*source.Options)) jsonrpc2.StreamServer {
options := func(o *source.Options) {
- hooks.Options(o)
+ optsHook(o)
o.ExperimentalWorkspaceModule = true
}
- return lsprpc.NewStreamServer(cache.New(ctx, options), false)
+ return lsprpc.NewStreamServer(cache.New(options), false)
}
-func (r *Runner) forwardedServer(ctx context.Context, t *testing.T) jsonrpc2.StreamServer {
- ts := r.getTestServer()
+func (r *Runner) forwardedServer(ctx context.Context, t *testing.T, optsHook func(*source.Options)) jsonrpc2.StreamServer {
+ ts := r.getTestServer(optsHook)
return lsprpc.NewForwarder("tcp", ts.Addr)
}
// getTestServer gets the shared test server instance to connect to, or creates
// one if it doesn't exist.
-func (r *Runner) getTestServer() *servertest.TCPServer {
+func (r *Runner) getTestServer(optsHook func(*source.Options)) *servertest.TCPServer {
r.mu.Lock()
defer r.mu.Unlock()
if r.ts == nil {
ctx := context.Background()
ctx = debug.WithInstance(ctx, "", "off")
- ss := lsprpc.NewStreamServer(cache.New(ctx, hooks.Options), false)
+ ss := lsprpc.NewStreamServer(cache.New(optsHook), false)
r.ts = servertest.NewTCPServer(ctx, ss, nil)
}
return r.ts
}
-func (r *Runner) separateProcessServer(ctx context.Context, t *testing.T) jsonrpc2.StreamServer {
+func (r *Runner) separateProcessServer(ctx context.Context, t *testing.T, optsHook func(*source.Options)) jsonrpc2.StreamServer {
// TODO(rfindley): can we use the autostart behavior here, instead of
// pre-starting the remote?
socket := r.getRemoteSocket(t)
diff --git a/gopls/internal/regtest/watch/watch_test.go b/gopls/internal/regtest/watch/watch_test.go
index ae43bea..9cc9d0a 100644
--- a/gopls/internal/regtest/watch/watch_test.go
+++ b/gopls/internal/regtest/watch/watch_test.go
@@ -617,6 +617,11 @@
`
WithOptions(
InGOPATH(),
+ EditorConfig{
+ Env: map[string]string{
+ "GO111MODULE": "auto",
+ },
+ },
Modes(Experimental), // module is in a subdirectory
).Run(t, files, func(t *testing.T, env *Env) {
env.OpenFile("foo/main.go")
@@ -624,12 +629,6 @@
if err := env.Sandbox.RunGoCommand(env.Ctx, "foo", "mod", []string{"init", "mod.com"}); err != nil {
t.Fatal(err)
}
- env.Await(
- OnceMet(
- env.DoneWithChangeWatchedFiles(),
- env.DiagnosticAtRegexp("foo/main.go", `"blah"`),
- ),
- )
env.RegexpReplace("foo/main.go", `"blah"`, `"mod.com/blah"`)
env.Await(
EmptyDiagnostics("foo/main.go"),
@@ -661,6 +660,11 @@
`
WithOptions(
InGOPATH(),
+ EditorConfig{
+ Env: map[string]string{
+ "GO111MODULE": "auto",
+ },
+ },
).Run(t, files, func(t *testing.T, env *Env) {
env.OpenFile("foo/main.go")
env.RemoveWorkspaceFile("foo/go.mod")
diff --git a/gopls/internal/regtest/workspace/workspace_test.go b/gopls/internal/regtest/workspace/workspace_test.go
index f0128d8..21e33b6 100644
--- a/gopls/internal/regtest/workspace/workspace_test.go
+++ b/gopls/internal/regtest/workspace/workspace_test.go
@@ -5,15 +5,16 @@
package workspace
import (
+ "encoding/json"
"fmt"
"io/ioutil"
- "os"
"path/filepath"
"strings"
"testing"
. "golang.org/x/tools/gopls/internal/regtest"
+ "golang.org/x/tools/internal/lsp/command"
"golang.org/x/tools/internal/lsp/fake"
"golang.org/x/tools/internal/lsp/protocol"
"golang.org/x/tools/internal/testenv"
@@ -647,10 +648,19 @@
Modes(Experimental),
SendPID(),
).Run(t, multiModule, func(t *testing.T, env *Env) {
- pid := os.Getpid()
+ params := &protocol.ExecuteCommandParams{
+ Command: command.WorkspaceMetadata.ID(),
+ Arguments: []json.RawMessage{json.RawMessage("{}")},
+ }
+ var result command.WorkspaceMetadataResult
+ env.ExecuteCommand(params, &result)
+
+ if n := len(result.Workspaces); n != 1 {
+ env.T.Fatalf("got %d workspaces, want 1", n)
+ }
// Don't factor this out of Server.addFolders. vscode-go expects this
// directory.
- modPath := filepath.Join(os.TempDir(), fmt.Sprintf("gopls-%d.workspace", pid), "go.mod")
+ modPath := filepath.Join(result.Workspaces[0].ModuleDir, "go.mod")
gotb, err := ioutil.ReadFile(modPath)
if err != nil {
t.Fatalf("reading expected workspace modfile: %v", err)
diff --git a/gopls/internal/regtest/wrappers.go b/gopls/internal/regtest/wrappers.go
index c77de5b..2038849 100644
--- a/gopls/internal/regtest/wrappers.go
+++ b/gopls/internal/regtest/wrappers.go
@@ -5,6 +5,7 @@
package regtest
import (
+ "encoding/json"
"io"
"path"
"testing"
@@ -229,6 +230,15 @@
return links
}
+func (e *Env) DocumentHighlight(name string, pos fake.Pos) []protocol.DocumentHighlight {
+ e.T.Helper()
+ highlights, err := e.Editor.DocumentHighlight(e.Ctx, name, pos)
+ if err != nil {
+ e.T.Fatal(err)
+ }
+ return highlights
+}
+
func checkIsFatal(t *testing.T, err error) {
t.Helper()
if err != nil && !errors.Is(err, io.EOF) && !errors.Is(err, io.ErrClosedPipe) {
@@ -312,6 +322,7 @@
// ExecuteCodeLensCommand executes the command for the code lens matching the
// given command name.
func (e *Env) ExecuteCodeLensCommand(path string, cmd command.Command) {
+ e.T.Helper()
lenses := e.CodeLens(path)
var lens protocol.CodeLens
var found bool
@@ -324,10 +335,32 @@
if !found {
e.T.Fatalf("found no command with the ID %s", cmd.ID())
}
- if _, err := e.Editor.ExecuteCommand(e.Ctx, &protocol.ExecuteCommandParams{
+ e.ExecuteCommand(&protocol.ExecuteCommandParams{
Command: lens.Command.Command,
Arguments: lens.Command.Arguments,
- }); err != nil {
+ }, nil)
+}
+
+func (e *Env) ExecuteCommand(params *protocol.ExecuteCommandParams, result interface{}) {
+ e.T.Helper()
+ response, err := e.Editor.ExecuteCommand(e.Ctx, params)
+ if err != nil {
+ e.T.Fatal(err)
+ }
+ if result == nil {
+ return
+ }
+ // Hack: The result of an executeCommand request will be unmarshaled into
+ // maps. Re-marshal and unmarshal into the type we expect.
+ //
+ // This could be improved by generating a jsonrpc2 command client from the
+ // command.Interface, but that should only be done if we're consolidating
+ // this part of the tsprotocol generation.
+ data, err := json.Marshal(response)
+ if err != nil {
+ e.T.Fatal(err)
+ }
+ if err := json.Unmarshal(data, result); err != nil {
e.T.Fatal(err)
}
}
@@ -364,9 +397,9 @@
// CodeAction calls testDocument/codeAction for the given path, and calls
// t.Fatal if there are errors.
-func (e *Env) CodeAction(path string) []protocol.CodeAction {
+func (e *Env) CodeAction(path string, diagnostics []protocol.Diagnostic) []protocol.CodeAction {
e.T.Helper()
- actions, err := e.Editor.CodeAction(e.Ctx, path, nil)
+ actions, err := e.Editor.CodeAction(e.Ctx, path, nil, diagnostics)
if err != nil {
e.T.Fatal(err)
}
diff --git a/internal/event/label/label.go b/internal/event/label/label.go
index b55c12e..0f526e1 100644
--- a/internal/event/label/label.go
+++ b/internal/event/label/label.go
@@ -96,6 +96,8 @@
// access should be done with the From method of the key.
func (t Label) Unpack64() uint64 { return t.packed }
+type stringptr unsafe.Pointer
+
// OfString creates a new label from a key and a string.
// This method is for implementing new key types, label creation should
// normally be done with the Of method of the key.
@@ -104,7 +106,7 @@
return Label{
key: k,
packed: uint64(hdr.Len),
- untyped: unsafe.Pointer(hdr.Data),
+ untyped: stringptr(hdr.Data),
}
}
@@ -115,9 +117,9 @@
func (t Label) UnpackString() string {
var v string
hdr := (*reflect.StringHeader)(unsafe.Pointer(&v))
- hdr.Data = uintptr(t.untyped.(unsafe.Pointer))
+ hdr.Data = uintptr(t.untyped.(stringptr))
hdr.Len = int(t.packed)
- return *(*string)(unsafe.Pointer(hdr))
+ return v
}
// Valid returns true if the Label is a valid one (it has a key).
diff --git a/internal/event/label/label_test.go b/internal/event/label/label_test.go
index ea34ff7..a2b5818 100644
--- a/internal/event/label/label_test.go
+++ b/internal/event/label/label_test.go
@@ -7,7 +7,9 @@
import (
"bytes"
"fmt"
+ "runtime"
"testing"
+ "unsafe"
"golang.org/x/tools/internal/event/keys"
"golang.org/x/tools/internal/event/label"
@@ -267,3 +269,17 @@
}
return buf.String()
}
+
+func TestAttemptedStringCorruption(t *testing.T) {
+ defer func() {
+ r := recover()
+ if _, ok := r.(*runtime.TypeAssertionError); !ok {
+ t.Fatalf("wanted to recover TypeAssertionError, got %T", r)
+ }
+ }()
+
+ var x uint64 = 12390
+ p := unsafe.Pointer(&x)
+ l := label.OfValue(AKey, p)
+ _ = l.UnpackString()
+}
diff --git a/internal/jsonrpc2_v2/conn.go b/internal/jsonrpc2_v2/conn.go
new file mode 100644
index 0000000..6d92c0c
--- /dev/null
+++ b/internal/jsonrpc2_v2/conn.go
@@ -0,0 +1,486 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package jsonrpc2
+
+import (
+ "context"
+ "encoding/json"
+ "fmt"
+ "io"
+ "sync/atomic"
+
+ "golang.org/x/tools/internal/event"
+ "golang.org/x/tools/internal/event/label"
+ "golang.org/x/tools/internal/lsp/debug/tag"
+ errors "golang.org/x/xerrors"
+)
+
+// Binder builds a connection configuration.
+// This may be used in servers to generate a new configuration per connection.
+// ConnectionOptions itself implements Binder returning itself unmodified, to
+// allow for the simple cases where no per connection information is needed.
+type Binder interface {
+ // Bind is invoked when creating a new connection.
+ // The connection is not ready to use when Bind is called.
+ Bind(context.Context, *Connection) (ConnectionOptions, error)
+}
+
+// ConnectionOptions holds the options for new connections.
+type ConnectionOptions struct {
+ // Framer allows control over the message framing and encoding.
+ // If nil, HeaderFramer will be used.
+ Framer Framer
+ // Preempter allows registration of a pre-queue message handler.
+ // If nil, no messages will be preempted.
+ Preempter Preempter
+ // Handler is used as the queued message handler for inbound messages.
+ // If nil, all responses will be ErrNotHandled.
+ Handler Handler
+}
+
+// Connection manages the jsonrpc2 protocol, connecting responses back to their
+// calls.
+// Connection is bidirectional; it does not have a designated server or client
+// end.
+type Connection struct {
+ seq int64 // must only be accessed using atomic operations
+ closer io.Closer
+ writerBox chan Writer
+ outgoingBox chan map[ID]chan<- *Response
+ incomingBox chan map[ID]*incoming
+ async async
+}
+
+type AsyncCall struct {
+ id ID
+ response chan *Response // the channel a response will be delivered on
+ resultBox chan asyncResult
+ endSpan func() // close the tracing span when all processing for the message is complete
+}
+
+type asyncResult struct {
+ result []byte
+ err error
+}
+
+// incoming is used to track an incoming request as it is being handled
+type incoming struct {
+ request *Request // the request being processed
+ baseCtx context.Context // a base context for the message processing
+ done func() // a function called when all processing for the message is complete
+ handleCtx context.Context // the context for handling the message, child of baseCtx
+ cancel func() // a function that cancels the handling context
+}
+
+// Bind returns the options unmodified.
+func (o ConnectionOptions) Bind(context.Context, *Connection) (ConnectionOptions, error) {
+ return o, nil
+}
+
+// newConnection creates a new connection and runs it.
+// This is used by the Dial and Serve functions to build the actual connection.
+func newConnection(ctx context.Context, rwc io.ReadWriteCloser, binder Binder) (*Connection, error) {
+ c := &Connection{
+ closer: rwc,
+ writerBox: make(chan Writer, 1),
+ outgoingBox: make(chan map[ID]chan<- *Response, 1),
+ incomingBox: make(chan map[ID]*incoming, 1),
+ }
+
+ options, err := binder.Bind(ctx, c)
+ if err != nil {
+ return nil, err
+ }
+ if options.Framer == nil {
+ options.Framer = HeaderFramer()
+ }
+ if options.Preempter == nil {
+ options.Preempter = defaultHandler{}
+ }
+ if options.Handler == nil {
+ options.Handler = defaultHandler{}
+ }
+ c.outgoingBox <- make(map[ID]chan<- *Response)
+ c.incomingBox <- make(map[ID]*incoming)
+ c.async.init()
+ // the goroutines started here will continue until the underlying stream is closed
+ reader := options.Framer.Reader(rwc)
+ readToQueue := make(chan *incoming)
+ queueToDeliver := make(chan *incoming)
+ go c.readIncoming(ctx, reader, readToQueue)
+ go c.manageQueue(ctx, options.Preempter, readToQueue, queueToDeliver)
+ go c.deliverMessages(ctx, options.Handler, queueToDeliver)
+ // releaseing the writer must be the last thing we do in case any requests
+ // are blocked waiting for the connection to be ready
+ c.writerBox <- options.Framer.Writer(rwc)
+ return c, nil
+}
+
+// Notify invokes the target method but does not wait for a response.
+// The params will be marshaled to JSON before sending over the wire, and will
+// be handed to the method invoked.
+func (c *Connection) Notify(ctx context.Context, method string, params interface{}) error {
+ notify, err := NewNotification(method, params)
+ if err != nil {
+ return errors.Errorf("marshaling notify parameters: %v", err)
+ }
+ ctx, done := event.Start(ctx, method,
+ tag.Method.Of(method),
+ tag.RPCDirection.Of(tag.Outbound),
+ )
+ event.Metric(ctx, tag.Started.Of(1))
+ err = c.write(ctx, notify)
+ switch {
+ case err != nil:
+ event.Label(ctx, tag.StatusCode.Of("ERROR"))
+ default:
+ event.Label(ctx, tag.StatusCode.Of("OK"))
+ }
+ done()
+ return err
+}
+
+// Call invokes the target method and returns an object that can be used to await the response.
+// The params will be marshaled to JSON before sending over the wire, and will
+// be handed to the method invoked.
+// You do not have to wait for the response, it can just be ignored if not needed.
+// If sending the call failed, the response will be ready and have the error in it.
+func (c *Connection) Call(ctx context.Context, method string, params interface{}) *AsyncCall {
+ result := &AsyncCall{
+ id: Int64ID(atomic.AddInt64(&c.seq, 1)),
+ resultBox: make(chan asyncResult, 1),
+ }
+ // generate a new request identifier
+ call, err := NewCall(result.id, method, params)
+ if err != nil {
+ //set the result to failed
+ result.resultBox <- asyncResult{err: errors.Errorf("marshaling call parameters: %w", err)}
+ return result
+ }
+ ctx, endSpan := event.Start(ctx, method,
+ tag.Method.Of(method),
+ tag.RPCDirection.Of(tag.Outbound),
+ tag.RPCID.Of(fmt.Sprintf("%q", result.id)),
+ )
+ result.endSpan = endSpan
+ event.Metric(ctx, tag.Started.Of(1))
+ // We have to add ourselves to the pending map before we send, otherwise we
+ // are racing the response.
+ // rchan is buffered in case the response arrives without a listener.
+ result.response = make(chan *Response, 1)
+ pending := <-c.outgoingBox
+ pending[result.id] = result.response
+ c.outgoingBox <- pending
+ // now we are ready to send
+ if err := c.write(ctx, call); err != nil {
+ // sending failed, we will never get a response, so deliver a fake one
+ r, _ := NewResponse(result.id, nil, err)
+ c.incomingResponse(r)
+ }
+ return result
+}
+
+// ID used for this call.
+// This can be used to cancel the call if needed.
+func (a *AsyncCall) ID() ID { return a.id }
+
+// IsReady can be used to check if the result is already prepared.
+// This is guaranteed to return true on a result for which Await has already
+// returned, or a call that failed to send in the first place.
+func (a *AsyncCall) IsReady() bool {
+ select {
+ case r := <-a.resultBox:
+ a.resultBox <- r
+ return true
+ default:
+ return false
+ }
+}
+
+// Await the results of a Call.
+// The response will be unmarshaled from JSON into the result.
+func (a *AsyncCall) Await(ctx context.Context, result interface{}) error {
+ defer a.endSpan()
+ var r asyncResult
+ select {
+ case response := <-a.response:
+ // response just arrived, prepare the result
+ switch {
+ case response.Error != nil:
+ r.err = response.Error
+ event.Label(ctx, tag.StatusCode.Of("ERROR"))
+ default:
+ r.result = response.Result
+ event.Label(ctx, tag.StatusCode.Of("OK"))
+ }
+ case r = <-a.resultBox:
+ // result already available
+ case <-ctx.Done():
+ event.Label(ctx, tag.StatusCode.Of("CANCELLED"))
+ return ctx.Err()
+ }
+ // refill the box for the next caller
+ a.resultBox <- r
+ // and unpack the result
+ if r.err != nil {
+ return r.err
+ }
+ if result == nil || len(r.result) == 0 {
+ return nil
+ }
+ return json.Unmarshal(r.result, result)
+}
+
+// Respond deliverers a response to an incoming Call.
+// It is an error to not call this exactly once for any message for which a
+// handler has previously returned ErrAsyncResponse. It is also an error to
+// call this for any other message.
+func (c *Connection) Respond(id ID, result interface{}, rerr error) error {
+ pending := <-c.incomingBox
+ defer func() { c.incomingBox <- pending }()
+ entry, found := pending[id]
+ if !found {
+ return nil
+ }
+ delete(pending, id)
+ return c.respond(entry, result, rerr)
+}
+
+// Cancel is used to cancel an inbound message by ID, it does not cancel
+// outgoing messages.
+// This is only used inside a message handler that is layering a
+// cancellation protocol on top of JSON RPC 2.
+// It will not complain if the ID is not a currently active message, and it will
+// not cause any messages that have not arrived yet with that ID to be
+// cancelled.
+func (c *Connection) Cancel(id ID) {
+ pending := <-c.incomingBox
+ defer func() { c.incomingBox <- pending }()
+ if entry, found := pending[id]; found && entry.cancel != nil {
+ entry.cancel()
+ entry.cancel = nil
+ }
+}
+
+// Wait blocks until the connection is fully closed, but does not close it.
+func (c *Connection) Wait() error {
+ return c.async.wait()
+}
+
+// Close can be used to close the underlying stream, and then wait for the connection to
+// fully shut down.
+// This does not cancel in flight requests, but waits for them to gracefully complete.
+func (c *Connection) Close() error {
+ // close the underlying stream
+ if err := c.closer.Close(); err != nil && !isClosingError(err) {
+ return err
+ }
+ // and then wait for it to cause the connection to close
+ if err := c.Wait(); err != nil && !isClosingError(err) {
+ return err
+ }
+ return nil
+}
+
+// readIncoming collects inbound messages from the reader and delivers them, either responding
+// to outgoing calls or feeding requests to the queue.
+func (c *Connection) readIncoming(ctx context.Context, reader Reader, toQueue chan<- *incoming) {
+ defer close(toQueue)
+ for {
+ // get the next message
+ // no lock is needed, this is the only reader
+ msg, n, err := reader.Read(ctx)
+ if err != nil {
+ // The stream failed, we cannot continue
+ c.async.setError(err)
+ return
+ }
+ switch msg := msg.(type) {
+ case *Request:
+ entry := &incoming{
+ request: msg,
+ }
+ // add a span to the context for this request
+ labels := append(make([]label.Label, 0, 3), // make space for the id if present
+ tag.Method.Of(msg.Method),
+ tag.RPCDirection.Of(tag.Inbound),
+ )
+ if msg.IsCall() {
+ labels = append(labels, tag.RPCID.Of(fmt.Sprintf("%q", msg.ID)))
+ }
+ entry.baseCtx, entry.done = event.Start(ctx, msg.Method, labels...)
+ event.Metric(entry.baseCtx,
+ tag.Started.Of(1),
+ tag.ReceivedBytes.Of(n))
+ // in theory notifications cannot be cancelled, but we build them a cancel context anyway
+ entry.handleCtx, entry.cancel = context.WithCancel(entry.baseCtx)
+ // if the request is a call, add it to the incoming map so it can be
+ // cancelled by id
+ if msg.IsCall() {
+ pending := <-c.incomingBox
+ c.incomingBox <- pending
+ pending[msg.ID] = entry
+ }
+ // send the message to the incoming queue
+ toQueue <- entry
+ case *Response:
+ // If method is not set, this should be a response, in which case we must
+ // have an id to send the response back to the caller.
+ c.incomingResponse(msg)
+ }
+ }
+}
+
+func (c *Connection) incomingResponse(msg *Response) {
+ pending := <-c.outgoingBox
+ response, ok := pending[msg.ID]
+ if ok {
+ delete(pending, msg.ID)
+ }
+ c.outgoingBox <- pending
+ if response != nil {
+ response <- msg
+ }
+}
+
+// manageQueue reads incoming requests, attempts to proccess them with the preempter, or queue them
+// up for normal handling.
+func (c *Connection) manageQueue(ctx context.Context, preempter Preempter, fromRead <-chan *incoming, toDeliver chan<- *incoming) {
+ defer close(toDeliver)
+ q := []*incoming{}
+ ok := true
+ for {
+ var nextReq *incoming
+ if len(q) == 0 {
+ // no messages in the queue
+ // if we were closing, then we are done
+ if !ok {
+ return
+ }
+ // not closing, but nothing in the queue, so just block waiting for a read
+ nextReq, ok = <-fromRead
+ } else {
+ // we have a non empty queue, so pick whichever of reading or delivering
+ // that we can make progress on
+ select {
+ case nextReq, ok = <-fromRead:
+ case toDeliver <- q[0]:
+ //TODO: this causes a lot of shuffling, should we use a growing ring buffer? compaction?
+ q = q[1:]
+ }
+ }
+ if nextReq != nil {
+ // TODO: should we allow to limit the queue size?
+ var result interface{}
+ rerr := nextReq.handleCtx.Err()
+ if rerr == nil {
+ // only preempt if not already cancelled
+ result, rerr = preempter.Preempt(nextReq.handleCtx, nextReq.request)
+ }
+ switch {
+ case rerr == ErrNotHandled:
+ // message not handled, add it to the queue for the main handler
+ q = append(q, nextReq)
+ case rerr == ErrAsyncResponse:
+ // message handled but the response will come later
+ default:
+ // anything else means the message is fully handled
+ c.reply(nextReq, result, rerr)
+ }
+ }
+ }
+}
+
+func (c *Connection) deliverMessages(ctx context.Context, handler Handler, fromQueue <-chan *incoming) {
+ defer c.async.done()
+ for entry := range fromQueue {
+ // cancel any messages in the queue that we have a pending cancel for
+ var result interface{}
+ rerr := entry.handleCtx.Err()
+ if rerr == nil {
+ // only deliver if not already cancelled
+ result, rerr = handler.Handle(entry.handleCtx, entry.request)
+ }
+ switch {
+ case rerr == ErrNotHandled:
+ // message not handled, report it back to the caller as an error
+ c.reply(entry, nil, errors.Errorf("%w: %q", ErrMethodNotFound, entry.request.Method))
+ case rerr == ErrAsyncResponse:
+ // message handled but the response will come later
+ default:
+ c.reply(entry, result, rerr)
+ }
+ }
+}
+
+// reply is used to reply to an incoming request that has just been handled
+func (c *Connection) reply(entry *incoming, result interface{}, rerr error) {
+ if entry.request.IsCall() {
+ // we have a call finishing, remove it from the incoming map
+ pending := <-c.incomingBox
+ defer func() { c.incomingBox <- pending }()
+ delete(pending, entry.request.ID)
+ }
+ if err := c.respond(entry, result, rerr); err != nil {
+ // no way to propagate this error
+ //TODO: should we do more than just log it?
+ event.Error(entry.baseCtx, "jsonrpc2 message delivery failed", err)
+ }
+}
+
+// respond sends a response.
+// This is the code shared between reply and SendResponse.
+func (c *Connection) respond(entry *incoming, result interface{}, rerr error) error {
+ var err error
+ if entry.request.IsCall() {
+ // send the response
+ if result == nil && rerr == nil {
+ // call with no response, send an error anyway
+ rerr = errors.Errorf("%w: %q produced no response", ErrInternal, entry.request.Method)
+ }
+ var response *Response
+ response, err = NewResponse(entry.request.ID, result, rerr)
+ if err == nil {
+ // we write the response with the base context, in case the message was cancelled
+ err = c.write(entry.baseCtx, response)
+ }
+ } else {
+ switch {
+ case rerr != nil:
+ // notification failed
+ err = errors.Errorf("%w: %q notification failed: %v", ErrInternal, entry.request.Method, rerr)
+ rerr = nil
+ case result != nil:
+ //notification produced a response, which is an error
+ err = errors.Errorf("%w: %q produced unwanted response", ErrInternal, entry.request.Method)
+ default:
+ // normal notification finish
+ }
+ }
+ switch {
+ case rerr != nil || err != nil:
+ event.Label(entry.baseCtx, tag.StatusCode.Of("ERROR"))
+ default:
+ event.Label(entry.baseCtx, tag.StatusCode.Of("OK"))
+ }
+ // and just to be clean, invoke and clear the cancel if needed
+ if entry.cancel != nil {
+ entry.cancel()
+ entry.cancel = nil
+ }
+ // mark the entire request processing as done
+ entry.done()
+ return err
+}
+
+// write is used by all things that write outgoing messages, including replies.
+// it makes sure that writes are atomic
+func (c *Connection) write(ctx context.Context, msg Message) error {
+ writer := <-c.writerBox
+ defer func() { c.writerBox <- writer }()
+ n, err := writer.Write(ctx, msg)
+ event.Metric(ctx, tag.SentBytes.Of(n))
+ return err
+}
diff --git a/internal/jsonrpc2_v2/frame.go b/internal/jsonrpc2_v2/frame.go
new file mode 100644
index 0000000..634717c
--- /dev/null
+++ b/internal/jsonrpc2_v2/frame.go
@@ -0,0 +1,179 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package jsonrpc2
+
+import (
+ "bufio"
+ "context"
+ "encoding/json"
+ "fmt"
+ "io"
+ "strconv"
+ "strings"
+
+ errors "golang.org/x/xerrors"
+)
+
+// Reader abstracts the transport mechanics from the JSON RPC protocol.
+// A Conn reads messages from the reader it was provided on construction,
+// and assumes that each call to Read fully transfers a single message,
+// or returns an error.
+// A reader is not safe for concurrent use, it is expected it will be used by
+// a single Conn in a safe manner.
+type Reader interface {
+ // Read gets the next message from the stream.
+ Read(context.Context) (Message, int64, error)
+}
+
+// Writer abstracts the transport mechanics from the JSON RPC protocol.
+// A Conn writes messages using the writer it was provided on construction,
+// and assumes that each call to Write fully transfers a single message,
+// or returns an error.
+// A writer is not safe for concurrent use, it is expected it will be used by
+// a single Conn in a safe manner.
+type Writer interface {
+ // Write sends a message to the stream.
+ Write(context.Context, Message) (int64, error)
+}
+
+// Framer wraps low level byte readers and writers into jsonrpc2 message
+// readers and writers.
+// It is responsible for the framing and encoding of messages into wire form.
+type Framer interface {
+ // Reader wraps a byte reader into a message reader.
+ Reader(rw io.Reader) Reader
+ // Writer wraps a byte writer into a message writer.
+ Writer(rw io.Writer) Writer
+}
+
+// RawFramer returns a new Framer.
+// The messages are sent with no wrapping, and rely on json decode consistency
+// to determine message boundaries.
+func RawFramer() Framer { return rawFramer{} }
+
+type rawFramer struct{}
+type rawReader struct{ in *json.Decoder }
+type rawWriter struct{ out io.Writer }
+
+func (rawFramer) Reader(rw io.Reader) Reader {
+ return &rawReader{in: json.NewDecoder(rw)}
+}
+
+func (rawFramer) Writer(rw io.Writer) Writer {
+ return &rawWriter{out: rw}
+}
+
+func (r *rawReader) Read(ctx context.Context) (Message, int64, error) {
+ select {
+ case <-ctx.Done():
+ return nil, 0, ctx.Err()
+ default:
+ }
+ var raw json.RawMessage
+ if err := r.in.Decode(&raw); err != nil {
+ return nil, 0, err
+ }
+ msg, err := DecodeMessage(raw)
+ return msg, int64(len(raw)), err
+}
+
+func (w *rawWriter) Write(ctx context.Context, msg Message) (int64, error) {
+ select {
+ case <-ctx.Done():
+ return 0, ctx.Err()
+ default:
+ }
+ data, err := EncodeMessage(msg)
+ if err != nil {
+ return 0, errors.Errorf("marshaling message: %v", err)
+ }
+ n, err := w.out.Write(data)
+ return int64(n), err
+}
+
+// HeaderFramer returns a new Framer.
+// The messages are sent with HTTP content length and MIME type headers.
+// This is the format used by LSP and others.
+func HeaderFramer() Framer { return headerFramer{} }
+
+type headerFramer struct{}
+type headerReader struct{ in *bufio.Reader }
+type headerWriter struct{ out io.Writer }
+
+func (headerFramer) Reader(rw io.Reader) Reader {
+ return &headerReader{in: bufio.NewReader(rw)}
+}
+
+func (headerFramer) Writer(rw io.Writer) Writer {
+ return &headerWriter{out: rw}
+}
+
+func (r *headerReader) Read(ctx context.Context) (Message, int64, error) {
+ select {
+ case <-ctx.Done():
+ return nil, 0, ctx.Err()
+ default:
+ }
+ var total, length int64
+ // read the header, stop on the first empty line
+ for {
+ line, err := r.in.ReadString('\n')
+ total += int64(len(line))
+ if err != nil {
+ return nil, total, errors.Errorf("failed reading header line: %w", err)
+ }
+ line = strings.TrimSpace(line)
+ // check we have a header line
+ if line == "" {
+ break
+ }
+ colon := strings.IndexRune(line, ':')
+ if colon < 0 {
+ return nil, total, errors.Errorf("invalid header line %q", line)
+ }
+ name, value := line[:colon], strings.TrimSpace(line[colon+1:])
+ switch name {
+ case "Content-Length":
+ if length, err = strconv.ParseInt(value, 10, 32); err != nil {
+ return nil, total, errors.Errorf("failed parsing Content-Length: %v", value)
+ }
+ if length <= 0 {
+ return nil, total, errors.Errorf("invalid Content-Length: %v", length)
+ }
+ default:
+ // ignoring unknown headers
+ }
+ }
+ if length == 0 {
+ return nil, total, errors.Errorf("missing Content-Length header")
+ }
+ data := make([]byte, length)
+ n, err := io.ReadFull(r.in, data)
+ total += int64(n)
+ if err != nil {
+ return nil, total, err
+ }
+ msg, err := DecodeMessage(data)
+ return msg, total, err
+}
+
+func (w *headerWriter) Write(ctx context.Context, msg Message) (int64, error) {
+ select {
+ case <-ctx.Done():
+ return 0, ctx.Err()
+ default:
+ }
+ data, err := EncodeMessage(msg)
+ if err != nil {
+ return 0, errors.Errorf("marshaling message: %v", err)
+ }
+ n, err := fmt.Fprintf(w.out, "Content-Length: %v\r\n\r\n", len(data))
+ total := int64(n)
+ if err == nil {
+ n, err = w.out.Write(data)
+ total += int64(n)
+ }
+ return total, err
+}
diff --git a/internal/jsonrpc2_v2/jsonrpc2.go b/internal/jsonrpc2_v2/jsonrpc2.go
new file mode 100644
index 0000000..1279ba3
--- /dev/null
+++ b/internal/jsonrpc2_v2/jsonrpc2.go
@@ -0,0 +1,93 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package jsonrpc2 is a minimal implementation of the JSON RPC 2 spec.
+// https://www.jsonrpc.org/specification
+// It is intended to be compatible with other implementations at the wire level.
+package jsonrpc2
+
+import (
+ "context"
+ "errors"
+)
+
+var (
+ // ErrIdleTimeout is returned when serving timed out waiting for new connections.
+ ErrIdleTimeout = errors.New("timed out waiting for new connections")
+ // ErrNotHandled is returned from a handler to indicate it did not handle the
+ // message.
+ ErrNotHandled = errors.New("JSON RPC not handled")
+ // ErrAsyncResponse is returned from a handler to indicate it will generate a
+ // response asynchronously.
+ ErrAsyncResponse = errors.New("JSON RPC asynchronous response")
+)
+
+// Preempter handles messages on a connection before they are queued to the main
+// handler.
+// Primarily this is used for cancel handlers or notifications for which out of
+// order processing is not an issue.
+type Preempter interface {
+ // Preempt is invoked for each incoming request before it is queued.
+ // If the request is a call, it must return a value or an error for the reply.
+ // Preempt should not block or start any new messages on the connection.
+ Preempt(ctx context.Context, req *Request) (interface{}, error)
+}
+
+// Handler handles messages on a connection.
+type Handler interface {
+ // Handle is invoked for each incoming request.
+ // If the request is a call, it must return a value or an error for the reply.
+ Handle(ctx context.Context, req *Request) (interface{}, error)
+}
+
+type defaultHandler struct{}
+
+func (defaultHandler) Preempt(context.Context, *Request) (interface{}, error) {
+ return nil, ErrNotHandled
+}
+
+func (defaultHandler) Handle(context.Context, *Request) (interface{}, error) {
+ return nil, ErrNotHandled
+}
+
+// async is a small helper for things with an asynchronous result that you can
+// wait for.
+type async struct {
+ ready chan struct{}
+ errBox chan error
+}
+
+func (a *async) init() {
+ a.ready = make(chan struct{})
+ a.errBox = make(chan error, 1)
+ a.errBox <- nil
+}
+
+func (a *async) done() {
+ close(a.ready)
+}
+
+func (a *async) isDone() bool {
+ select {
+ case <-a.ready:
+ return true
+ default:
+ return false
+ }
+}
+
+func (a *async) wait() error {
+ <-a.ready
+ err := <-a.errBox
+ a.errBox <- err
+ return err
+}
+
+func (a *async) setError(err error) {
+ storedErr := <-a.errBox
+ if storedErr == nil {
+ storedErr = err
+ }
+ a.errBox <- storedErr
+}
diff --git a/internal/jsonrpc2_v2/jsonrpc2_test.go b/internal/jsonrpc2_v2/jsonrpc2_test.go
new file mode 100644
index 0000000..6d057b4
--- /dev/null
+++ b/internal/jsonrpc2_v2/jsonrpc2_test.go
@@ -0,0 +1,389 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package jsonrpc2_test
+
+import (
+ "context"
+ "encoding/json"
+ "fmt"
+ "path"
+ "reflect"
+ "testing"
+ "time"
+
+ "golang.org/x/tools/internal/event/export/eventtest"
+ jsonrpc2 "golang.org/x/tools/internal/jsonrpc2_v2"
+ "golang.org/x/tools/internal/stack/stacktest"
+ errors "golang.org/x/xerrors"
+)
+
+var callTests = []invoker{
+ call{"no_args", nil, true},
+ call{"one_string", "fish", "got:fish"},
+ call{"one_number", 10, "got:10"},
+ call{"join", []string{"a", "b", "c"}, "a/b/c"},
+ sequence{"notify", []invoker{
+ notify{"set", 3},
+ notify{"add", 5},
+ call{"get", nil, 8},
+ }},
+ sequence{"preempt", []invoker{
+ async{"a", "wait", "a"},
+ notify{"unblock", "a"},
+ collect{"a", true, false},
+ }},
+ sequence{"basic cancel", []invoker{
+ async{"b", "wait", "b"},
+ cancel{"b"},
+ collect{"b", nil, true},
+ }},
+ sequence{"queue", []invoker{
+ async{"a", "wait", "a"},
+ notify{"set", 1},
+ notify{"add", 2},
+ notify{"add", 3},
+ notify{"add", 4},
+ call{"peek", nil, 0}, // accumulator will not have any adds yet
+ notify{"unblock", "a"},
+ collect{"a", true, false},
+ call{"get", nil, 10}, // accumulator now has all the adds
+ }},
+ sequence{"fork", []invoker{
+ async{"a", "fork", "a"},
+ notify{"set", 1},
+ notify{"add", 2},
+ notify{"add", 3},
+ notify{"add", 4},
+ call{"get", nil, 10}, // fork will not have blocked the adds
+ notify{"unblock", "a"},
+ collect{"a", true, false},
+ }},
+}
+
+type binder struct {
+ framer jsonrpc2.Framer
+ runTest func(*handler)
+}
+
+type handler struct {
+ conn *jsonrpc2.Connection
+ accumulator int
+ waitersBox chan map[string]chan struct{}
+ calls map[string]*jsonrpc2.AsyncCall
+}
+
+type invoker interface {
+ Name() string
+ Invoke(t *testing.T, ctx context.Context, h *handler)
+}
+
+type notify struct {
+ method string
+ params interface{}
+}
+
+type call struct {
+ method string
+ params interface{}
+ expect interface{}
+}
+
+type async struct {
+ name string
+ method string
+ params interface{}
+}
+
+type collect struct {
+ name string
+ expect interface{}
+ fails bool
+}
+
+type cancel struct {
+ name string
+}
+
+type sequence struct {
+ name string
+ tests []invoker
+}
+
+type echo call
+
+type cancelParams struct{ ID int64 }
+
+func TestConnectionRaw(t *testing.T) {
+ testConnection(t, jsonrpc2.RawFramer())
+}
+
+func TestConnectionHeader(t *testing.T) {
+ testConnection(t, jsonrpc2.HeaderFramer())
+}
+
+func testConnection(t *testing.T, framer jsonrpc2.Framer) {
+ stacktest.NoLeak(t)
+ ctx := eventtest.NewContext(context.Background(), t)
+ listener, err := jsonrpc2.NetPipe(ctx)
+ if err != nil {
+ t.Fatal(err)
+ }
+ server, err := jsonrpc2.Serve(ctx, listener, binder{framer, nil})
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer func() {
+ listener.Close()
+ server.Wait()
+ }()
+
+ for _, test := range callTests {
+ t.Run(test.Name(), func(t *testing.T) {
+ client, err := jsonrpc2.Dial(ctx,
+ listener.Dialer(), binder{framer, func(h *handler) {
+ defer h.conn.Close()
+ ctx := eventtest.NewContext(ctx, t)
+ test.Invoke(t, ctx, h)
+ if call, ok := test.(*call); ok {
+ // also run all simple call tests in echo mode
+ (*echo)(call).Invoke(t, ctx, h)
+ }
+ }})
+ if err != nil {
+ t.Fatal(err)
+ }
+ client.Wait()
+ })
+ }
+}
+
+func (test notify) Name() string { return test.method }
+func (test notify) Invoke(t *testing.T, ctx context.Context, h *handler) {
+ if err := h.conn.Notify(ctx, test.method, test.params); err != nil {
+ t.Fatalf("%v:Notify failed: %v", test.method, err)
+ }
+}
+
+func (test call) Name() string { return test.method }
+func (test call) Invoke(t *testing.T, ctx context.Context, h *handler) {
+ results := newResults(test.expect)
+ if err := h.conn.Call(ctx, test.method, test.params).Await(ctx, results); err != nil {
+ t.Fatalf("%v:Call failed: %v", test.method, err)
+ }
+ verifyResults(t, test.method, results, test.expect)
+}
+
+func (test echo) Invoke(t *testing.T, ctx context.Context, h *handler) {
+ results := newResults(test.expect)
+ if err := h.conn.Call(ctx, "echo", []interface{}{test.method, test.params}).Await(ctx, results); err != nil {
+ t.Fatalf("%v:Echo failed: %v", test.method, err)
+ }
+ verifyResults(t, test.method, results, test.expect)
+}
+
+func (test async) Name() string { return test.name }
+func (test async) Invoke(t *testing.T, ctx context.Context, h *handler) {
+ h.calls[test.name] = h.conn.Call(ctx, test.method, test.params)
+}
+
+func (test collect) Name() string { return test.name }
+func (test collect) Invoke(t *testing.T, ctx context.Context, h *handler) {
+ o := h.calls[test.name]
+ results := newResults(test.expect)
+ err := o.Await(ctx, results)
+ switch {
+ case test.fails && err == nil:
+ t.Fatalf("%v:Collect was supposed to fail", test.name)
+ case !test.fails && err != nil:
+ t.Fatalf("%v:Collect failed: %v", test.name, err)
+ }
+ verifyResults(t, test.name, results, test.expect)
+}
+
+func (test cancel) Name() string { return test.name }
+func (test cancel) Invoke(t *testing.T, ctx context.Context, h *handler) {
+ o := h.calls[test.name]
+ if err := h.conn.Notify(ctx, "cancel", &cancelParams{o.ID().Raw().(int64)}); err != nil {
+ t.Fatalf("%v:Collect failed: %v", test.name, err)
+ }
+}
+
+func (test sequence) Name() string { return test.name }
+func (test sequence) Invoke(t *testing.T, ctx context.Context, h *handler) {
+ for _, child := range test.tests {
+ child.Invoke(t, ctx, h)
+ }
+}
+
+// newResults makes a new empty copy of the expected type to put the results into
+func newResults(expect interface{}) interface{} {
+ switch e := expect.(type) {
+ case []interface{}:
+ var r []interface{}
+ for _, v := range e {
+ r = append(r, reflect.New(reflect.TypeOf(v)).Interface())
+ }
+ return r
+ case nil:
+ return nil
+ default:
+ return reflect.New(reflect.TypeOf(expect)).Interface()
+ }
+}
+
+// verifyResults compares the results to the expected values
+func verifyResults(t *testing.T, method string, results interface{}, expect interface{}) {
+ if expect == nil {
+ if results != nil {
+ t.Errorf("%v:Got results %+v where none expeted", method, expect)
+ }
+ return
+ }
+ val := reflect.Indirect(reflect.ValueOf(results)).Interface()
+ if !reflect.DeepEqual(val, expect) {
+ t.Errorf("%v:Results are incorrect, got %+v expect %+v", method, val, expect)
+ }
+}
+
+func (b binder) Bind(ctx context.Context, conn *jsonrpc2.Connection) (jsonrpc2.ConnectionOptions, error) {
+ h := &handler{
+ conn: conn,
+ waitersBox: make(chan map[string]chan struct{}, 1),
+ calls: make(map[string]*jsonrpc2.AsyncCall),
+ }
+ h.waitersBox <- make(map[string]chan struct{})
+ if b.runTest != nil {
+ go b.runTest(h)
+ }
+ return jsonrpc2.ConnectionOptions{
+ Framer: b.framer,
+ Preempter: h,
+ Handler: h,
+ }, nil
+}
+
+func (h *handler) waiter(name string) chan struct{} {
+ waiters := <-h.waitersBox
+ defer func() { h.waitersBox <- waiters }()
+ waiter, found := waiters[name]
+ if !found {
+ waiter = make(chan struct{})
+ waiters[name] = waiter
+ }
+ return waiter
+}
+
+func (h *handler) Preempt(ctx context.Context, req *jsonrpc2.Request) (interface{}, error) {
+ switch req.Method {
+ case "unblock":
+ var name string
+ if err := json.Unmarshal(req.Params, &name); err != nil {
+ return nil, errors.Errorf("%w: %s", jsonrpc2.ErrParse, err)
+ }
+ close(h.waiter(name))
+ return nil, nil
+ case "peek":
+ if len(req.Params) > 0 {
+ return nil, errors.Errorf("%w: expected no params", jsonrpc2.ErrInvalidParams)
+ }
+ return h.accumulator, nil
+ case "cancel":
+ var params cancelParams
+ if err := json.Unmarshal(req.Params, ¶ms); err != nil {
+ return nil, errors.Errorf("%w: %s", jsonrpc2.ErrParse, err)
+ }
+ h.conn.Cancel(jsonrpc2.Int64ID(params.ID))
+ return nil, nil
+ default:
+ return nil, jsonrpc2.ErrNotHandled
+ }
+}
+
+func (h *handler) Handle(ctx context.Context, req *jsonrpc2.Request) (interface{}, error) {
+ switch req.Method {
+ case "no_args":
+ if len(req.Params) > 0 {
+ return nil, errors.Errorf("%w: expected no params", jsonrpc2.ErrInvalidParams)
+ }
+ return true, nil
+ case "one_string":
+ var v string
+ if err := json.Unmarshal(req.Params, &v); err != nil {
+ return nil, errors.Errorf("%w: %s", jsonrpc2.ErrParse, err)
+ }
+ return "got:" + v, nil
+ case "one_number":
+ var v int
+ if err := json.Unmarshal(req.Params, &v); err != nil {
+ return nil, errors.Errorf("%w: %s", jsonrpc2.ErrParse, err)
+ }
+ return fmt.Sprintf("got:%d", v), nil
+ case "set":
+ var v int
+ if err := json.Unmarshal(req.Params, &v); err != nil {
+ return nil, errors.Errorf("%w: %s", jsonrpc2.ErrParse, err)
+ }
+ h.accumulator = v
+ return nil, nil
+ case "add":
+ var v int
+ if err := json.Unmarshal(req.Params, &v); err != nil {
+ return nil, errors.Errorf("%w: %s", jsonrpc2.ErrParse, err)
+ }
+ h.accumulator += v
+ return nil, nil
+ case "get":
+ if len(req.Params) > 0 {
+ return nil, errors.Errorf("%w: expected no params", jsonrpc2.ErrInvalidParams)
+ }
+ return h.accumulator, nil
+ case "join":
+ var v []string
+ if err := json.Unmarshal(req.Params, &v); err != nil {
+ return nil, errors.Errorf("%w: %s", jsonrpc2.ErrParse, err)
+ }
+ return path.Join(v...), nil
+ case "echo":
+ var v []interface{}
+ if err := json.Unmarshal(req.Params, &v); err != nil {
+ return nil, errors.Errorf("%w: %s", jsonrpc2.ErrParse, err)
+ }
+ var result interface{}
+ err := h.conn.Call(ctx, v[0].(string), v[1]).Await(ctx, &result)
+ return result, err
+ case "wait":
+ var name string
+ if err := json.Unmarshal(req.Params, &name); err != nil {
+ return nil, errors.Errorf("%w: %s", jsonrpc2.ErrParse, err)
+ }
+ select {
+ case <-h.waiter(name):
+ return true, nil
+ case <-ctx.Done():
+ return nil, ctx.Err()
+ case <-time.After(time.Second):
+ return nil, errors.Errorf("wait for %q timed out", name)
+ }
+ case "fork":
+ var name string
+ if err := json.Unmarshal(req.Params, &name); err != nil {
+ return nil, errors.Errorf("%w: %s", jsonrpc2.ErrParse, err)
+ }
+ waitFor := h.waiter(name)
+ go func() {
+ select {
+ case <-waitFor:
+ h.conn.Respond(req.ID, true, nil)
+ case <-ctx.Done():
+ h.conn.Respond(req.ID, nil, ctx.Err())
+ case <-time.After(time.Second):
+ h.conn.Respond(req.ID, nil, errors.Errorf("wait for %q timed out", name))
+ }
+ }()
+ return nil, jsonrpc2.ErrAsyncResponse
+ default:
+ return nil, jsonrpc2.ErrNotHandled
+ }
+}
diff --git a/internal/jsonrpc2_v2/messages.go b/internal/jsonrpc2_v2/messages.go
new file mode 100644
index 0000000..652ac81
--- /dev/null
+++ b/internal/jsonrpc2_v2/messages.go
@@ -0,0 +1,181 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package jsonrpc2
+
+import (
+ "encoding/json"
+
+ errors "golang.org/x/xerrors"
+)
+
+// ID is a Request identifier.
+type ID struct {
+ value interface{}
+}
+
+// Message is the interface to all jsonrpc2 message types.
+// They share no common functionality, but are a closed set of concrete types
+// that are allowed to implement this interface. The message types are *Request
+// and *Response.
+type Message interface {
+ // marshal builds the wire form from the API form.
+ // It is private, which makes the set of Message implementations closed.
+ marshal(to *wireCombined)
+}
+
+// Request is a Message sent to a peer to request behavior.
+// If it has an ID it is a call, otherwise it is a notification.
+type Request struct {
+ // ID of this request, used to tie the Response back to the request.
+ // This will be nil for notifications.
+ ID ID
+ // Method is a string containing the method name to invoke.
+ Method string
+ // Params is either a struct or an array with the parameters of the method.
+ Params json.RawMessage
+}
+
+// Response is a Message used as a reply to a call Request.
+// It will have the same ID as the call it is a response to.
+type Response struct {
+ // result is the content of the response.
+ Result json.RawMessage
+ // err is set only if the call failed.
+ Error error
+ // id of the request this is a response to.
+ ID ID
+}
+
+// StringID creates a new string request identifier.
+func StringID(s string) ID { return ID{value: s} }
+
+// Int64ID creates a new integer request identifier.
+func Int64ID(i int64) ID { return ID{value: i} }
+
+// IsValid returns true if the ID is a valid identifier.
+// The default value for ID will return false.
+func (id ID) IsValid() bool { return id.value != nil }
+
+// Raw returns the underlying value of the ID.
+func (id ID) Raw() interface{} { return id.value }
+
+// NewNotification constructs a new Notification message for the supplied
+// method and parameters.
+func NewNotification(method string, params interface{}) (*Request, error) {
+ p, merr := marshalToRaw(params)
+ return &Request{Method: method, Params: p}, merr
+}
+
+// NewCall constructs a new Call message for the supplied ID, method and
+// parameters.
+func NewCall(id ID, method string, params interface{}) (*Request, error) {
+ p, merr := marshalToRaw(params)
+ return &Request{ID: id, Method: method, Params: p}, merr
+}
+
+func (msg *Request) IsCall() bool { return msg.ID.IsValid() }
+
+func (msg *Request) marshal(to *wireCombined) {
+ to.ID = msg.ID.value
+ to.Method = msg.Method
+ to.Params = msg.Params
+}
+
+// NewResponse constructs a new Response message that is a reply to the
+// supplied. If err is set result may be ignored.
+func NewResponse(id ID, result interface{}, rerr error) (*Response, error) {
+ r, merr := marshalToRaw(result)
+ return &Response{ID: id, Result: r, Error: rerr}, merr
+}
+
+func (msg *Response) marshal(to *wireCombined) {
+ to.ID = msg.ID.value
+ to.Error = toWireError(msg.Error)
+ to.Result = msg.Result
+}
+
+func toWireError(err error) *wireError {
+ if err == nil {
+ // no error, the response is complete
+ return nil
+ }
+ if err, ok := err.(*wireError); ok {
+ // already a wire error, just use it
+ return err
+ }
+ result := &wireError{Message: err.Error()}
+ var wrapped *wireError
+ if errors.As(err, &wrapped) {
+ // if we wrapped a wire error, keep the code from the wrapped error
+ // but the message from the outer error
+ result.Code = wrapped.Code
+ }
+ return result
+}
+
+func EncodeMessage(msg Message) ([]byte, error) {
+ wire := wireCombined{VersionTag: wireVersion}
+ msg.marshal(&wire)
+ data, err := json.Marshal(&wire)
+ if err != nil {
+ return data, errors.Errorf("marshaling jsonrpc message: %w", err)
+ }
+ return data, nil
+}
+
+func DecodeMessage(data []byte) (Message, error) {
+ msg := wireCombined{}
+ if err := json.Unmarshal(data, &msg); err != nil {
+ return nil, errors.Errorf("unmarshaling jsonrpc message: %w", err)
+ }
+ if msg.VersionTag != wireVersion {
+ return nil, errors.Errorf("invalid message version tag %s expected %s", msg.VersionTag, wireVersion)
+ }
+ id := ID{}
+ switch v := msg.ID.(type) {
+ case nil:
+ case float64:
+ // coerce the id type to int64 if it is float64, the spec does not allow fractional parts
+ id = Int64ID(int64(v))
+ case int64:
+ id = Int64ID(v)
+ case string:
+ id = StringID(v)
+ default:
+ return nil, errors.Errorf("invalid message id type <%T>%v", v, v)
+ }
+ if msg.Method != "" {
+ // has a method, must be a call
+ return &Request{
+ Method: msg.Method,
+ ID: id,
+ Params: msg.Params,
+ }, nil
+ }
+ // no method, should be a response
+ if !id.IsValid() {
+ return nil, ErrInvalidRequest
+ }
+ resp := &Response{
+ ID: id,
+ Result: msg.Result,
+ }
+ // we have to check if msg.Error is nil to avoid a typed error
+ if msg.Error != nil {
+ resp.Error = msg.Error
+ }
+ return resp, nil
+}
+
+func marshalToRaw(obj interface{}) (json.RawMessage, error) {
+ if obj == nil {
+ return nil, nil
+ }
+ data, err := json.Marshal(obj)
+ if err != nil {
+ return nil, err
+ }
+ return json.RawMessage(data), nil
+}
diff --git a/internal/jsonrpc2_v2/net.go b/internal/jsonrpc2_v2/net.go
new file mode 100644
index 0000000..c8cfaab
--- /dev/null
+++ b/internal/jsonrpc2_v2/net.go
@@ -0,0 +1,129 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package jsonrpc2
+
+import (
+ "context"
+ "io"
+ "net"
+ "os"
+ "time"
+)
+
+// This file contains implementations of the transport primitives that use the standard network
+// package.
+
+// NetListenOptions is the optional arguments to the NetListen function.
+type NetListenOptions struct {
+ NetListenConfig net.ListenConfig
+ NetDialer net.Dialer
+}
+
+// NetListener returns a new Listener that listents on a socket using the net package.
+func NetListener(ctx context.Context, network, address string, options NetListenOptions) (Listener, error) {
+ ln, err := options.NetListenConfig.Listen(ctx, network, address)
+ if err != nil {
+ return nil, err
+ }
+ return &netListener{net: ln}, nil
+}
+
+// netListener is the implementation of Listener for connections made using the net package.
+type netListener struct {
+ net net.Listener
+}
+
+// Accept blocks waiting for an incoming connection to the listener.
+func (l *netListener) Accept(ctx context.Context) (io.ReadWriteCloser, error) {
+ return l.net.Accept()
+}
+
+// Close will cause the listener to stop listening. It will not close any connections that have
+// already been accepted.
+func (l *netListener) Close() error {
+ addr := l.net.Addr()
+ err := l.net.Close()
+ if addr.Network() == "unix" {
+ rerr := os.Remove(addr.String())
+ if rerr != nil && err == nil {
+ err = rerr
+ }
+ }
+ return err
+}
+
+// Dialer returns a dialer that can be used to connect to the listener.
+func (l *netListener) Dialer() Dialer {
+ return NetDialer(l.net.Addr().Network(), l.net.Addr().String(), net.Dialer{
+ Timeout: 5 * time.Second,
+ })
+}
+
+// NetDialer returns a Dialer using the supplied standard network dialer.
+func NetDialer(network, address string, nd net.Dialer) Dialer {
+ return &netDialer{
+ network: network,
+ address: address,
+ dialer: nd,
+ }
+}
+
+type netDialer struct {
+ network string
+ address string
+ dialer net.Dialer
+}
+
+func (n *netDialer) Dial(ctx context.Context) (io.ReadWriteCloser, error) {
+ return n.dialer.DialContext(ctx, n.network, n.address)
+}
+
+// NetPipe returns a new Listener that listens using net.Pipe.
+// It is only possibly to connect to it using the Dialier returned by the
+// Dialer method, each call to that method will generate a new pipe the other
+// side of which will be returnd from the Accept call.
+func NetPipe(ctx context.Context) (Listener, error) {
+ return &netPiper{
+ done: make(chan struct{}),
+ dialed: make(chan io.ReadWriteCloser),
+ }, nil
+}
+
+// netPiper is the implementation of Listener build on top of net.Pipes.
+type netPiper struct {
+ done chan struct{}
+ dialed chan io.ReadWriteCloser
+}
+
+// Accept blocks waiting for an incoming connection to the listener.
+func (l *netPiper) Accept(ctx context.Context) (io.ReadWriteCloser, error) {
+ // block until we have a listener, or are closed or cancelled
+ select {
+ case rwc := <-l.dialed:
+ return rwc, nil
+ case <-l.done:
+ return nil, io.EOF
+ case <-ctx.Done():
+ return nil, ctx.Err()
+ }
+}
+
+// Close will cause the listener to stop listening. It will not close any connections that have
+// already been accepted.
+func (l *netPiper) Close() error {
+ // unblock any accept calls that are pending
+ close(l.done)
+ return nil
+}
+
+func (l *netPiper) Dialer() Dialer {
+ return l
+}
+
+func (l *netPiper) Dial(ctx context.Context) (io.ReadWriteCloser, error) {
+ client, server := net.Pipe()
+ l.dialed <- server
+ return client, nil
+}
diff --git a/internal/jsonrpc2_v2/serve.go b/internal/jsonrpc2_v2/serve.go
new file mode 100644
index 0000000..78259b1
--- /dev/null
+++ b/internal/jsonrpc2_v2/serve.go
@@ -0,0 +1,265 @@
+// Copyright 2020 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package jsonrpc2
+
+import (
+ "context"
+ "io"
+ "sync"
+ "time"
+
+ errors "golang.org/x/xerrors"
+)
+
+// Listener is implemented by protocols to accept new inbound connections.
+type Listener interface {
+ // Accept an inbound connection to a server.
+ // It must block until an inbound connection is made, or the listener is
+ // shut down.
+ Accept(context.Context) (io.ReadWriteCloser, error)
+
+ // Close is used to ask a listener to stop accepting new connections.
+ Close() error
+
+ // Dialer returns a dialer that can be used to connect to this listener
+ // locally.
+ // If a listener does not implement this it will return a nil.
+ Dialer() Dialer
+}
+
+// Dialer is used by clients to dial a server.
+type Dialer interface {
+ // Dial returns a new communication byte stream to a listening server.
+ Dial(ctx context.Context) (io.ReadWriteCloser, error)
+}
+
+// Server is a running server that is accepting incoming connections.
+type Server struct {
+ listener Listener
+ binder Binder
+ async async
+}
+
+// Dial uses the dialer to make a new connection, wraps the returned
+// reader and writer using the framer to make a stream, and then builds
+// a connection on top of that stream using the binder.
+func Dial(ctx context.Context, dialer Dialer, binder Binder) (*Connection, error) {
+ // dial a server
+ rwc, err := dialer.Dial(ctx)
+ if err != nil {
+ return nil, err
+ }
+ return newConnection(ctx, rwc, binder)
+}
+
+// Serve starts a new server listening for incoming connections and returns
+// it.
+// This returns a fully running and connected server, it does not block on
+// the listener.
+// You can call Wait to block on the server, or Shutdown to get the sever to
+// terminate gracefully.
+// To notice incoming connections, use an intercepting Binder.
+func Serve(ctx context.Context, listener Listener, binder Binder) (*Server, error) {
+ server := &Server{
+ listener: listener,
+ binder: binder,
+ }
+ server.async.init()
+ go server.run(ctx)
+ return server, nil
+}
+
+// Wait returns only when the server has shut down.
+func (s *Server) Wait() error {
+ return s.async.wait()
+}
+
+// run accepts incoming connections from the listener,
+// If IdleTimeout is non-zero, run exits after there are no clients for this
+// duration, otherwise it exits only on error.
+func (s *Server) run(ctx context.Context) {
+ defer s.async.done()
+ var activeConns []*Connection
+ for {
+ // we never close the accepted connection, we rely on the other end
+ // closing or the socket closing itself naturally
+ rwc, err := s.listener.Accept(ctx)
+ if err != nil {
+ if !isClosingError(err) {
+ s.async.setError(err)
+ }
+ // we are done generating new connections for good
+ break
+ }
+
+ // see if any connections were closed while we were waiting
+ activeConns = onlyActive(activeConns)
+
+ // a new inbound connection,
+ conn, err := newConnection(ctx, rwc, s.binder)
+ if err != nil {
+ if !isClosingError(err) {
+ s.async.setError(err)
+ }
+ continue
+ }
+ activeConns = append(activeConns, conn)
+ }
+
+ // wait for all active conns to finish
+ for _, c := range activeConns {
+ c.Wait()
+ }
+}
+
+func onlyActive(conns []*Connection) []*Connection {
+ i := 0
+ for _, c := range conns {
+ if !c.async.isDone() {
+ conns[i] = c
+ i++
+ }
+ }
+ // trim the slice down
+ return conns[:i]
+}
+
+// isClosingError reports if the error occurs normally during the process of
+// closing a network connection. It uses imperfect heuristics that err on the
+// side of false negatives, and should not be used for anything critical.
+func isClosingError(err error) bool {
+ if err == nil {
+ return false
+ }
+ // fully unwrap the error, so the following tests work
+ for wrapped := err; wrapped != nil; wrapped = errors.Unwrap(err) {
+ err = wrapped
+ }
+
+ // was it based on an EOF error?
+ if err == io.EOF {
+ return true
+ }
+
+ // Per https://github.com/golang/go/issues/4373, this error string should not
+ // change. This is not ideal, but since the worst that could happen here is
+ // some superfluous logging, it is acceptable.
+ if err.Error() == "use of closed network connection" {
+ return true
+ }
+
+ return false
+}
+
+// NewIdleListener wraps a listener with an idle timeout.
+// When there are no active connections for at least the timeout duration a
+// call to accept will fail with ErrIdleTimeout.
+func NewIdleListener(timeout time.Duration, wrap Listener) Listener {
+ l := &idleListener{
+ timeout: timeout,
+ wrapped: wrap,
+ newConns: make(chan *idleCloser),
+ closed: make(chan struct{}),
+ wasTimeout: make(chan struct{}),
+ }
+ go l.run()
+ return l
+}
+
+type idleListener struct {
+ wrapped Listener
+ timeout time.Duration
+ newConns chan *idleCloser
+ closed chan struct{}
+ wasTimeout chan struct{}
+ closeOnce sync.Once
+}
+
+type idleCloser struct {
+ wrapped io.ReadWriteCloser
+ closed chan struct{}
+ closeOnce sync.Once
+}
+
+func (c *idleCloser) Read(p []byte) (int, error) {
+ n, err := c.wrapped.Read(p)
+ if err != nil && isClosingError(err) {
+ c.closeOnce.Do(func() { close(c.closed) })
+ }
+ return n, err
+}
+
+func (c *idleCloser) Write(p []byte) (int, error) {
+ // we do not close on write failure, we rely on the wrapped writer to do that
+ // if it is appropriate, which we will detect in the next read.
+ return c.wrapped.Write(p)
+}
+
+func (c *idleCloser) Close() error {
+ // we rely on closing the wrapped stream to signal to the next read that we
+ // are closed, rather than triggering the closed signal directly
+ return c.wrapped.Close()
+}
+
+func (l *idleListener) Accept(ctx context.Context) (io.ReadWriteCloser, error) {
+ rwc, err := l.wrapped.Accept(ctx)
+ if err != nil {
+ if isClosingError(err) {
+ // underlying listener was closed
+ l.closeOnce.Do(func() { close(l.closed) })
+ // was it closed because of the idle timeout?
+ select {
+ case <-l.wasTimeout:
+ err = ErrIdleTimeout
+ default:
+ }
+ }
+ return nil, err
+ }
+ conn := &idleCloser{
+ wrapped: rwc,
+ closed: make(chan struct{}),
+ }
+ l.newConns <- conn
+ return conn, err
+}
+
+func (l *idleListener) Close() error {
+ defer l.closeOnce.Do(func() { close(l.closed) })
+ return l.wrapped.Close()
+}
+
+func (l *idleListener) Dialer() Dialer {
+ return l.wrapped.Dialer()
+}
+
+func (l *idleListener) run() {
+ var conns []*idleCloser
+ for {
+ var firstClosed chan struct{} // left at nil if there are no active conns
+ var timeout <-chan time.Time // left at nil if there are active conns
+ if len(conns) > 0 {
+ firstClosed = conns[0].closed
+ } else {
+ timeout = time.After(l.timeout)
+ }
+ select {
+ case <-l.closed:
+ // the main listener closed, no need to keep going
+ return
+ case conn := <-l.newConns:
+ // a new conn arrived, add it to the list
+ conns = append(conns, conn)
+ case <-timeout:
+ // we timed out, only happens when there are no active conns
+ // close the underlying listener, and allow the normal closing process to happen
+ close(l.wasTimeout)
+ l.wrapped.Close()
+ case <-firstClosed:
+ // a conn closed, remove it from the active list
+ conns = conns[:copy(conns, conns[1:])]
+ }
+ }
+}
diff --git a/internal/jsonrpc2_v2/serve_test.go b/internal/jsonrpc2_v2/serve_test.go
new file mode 100644
index 0000000..22f18cd
--- /dev/null
+++ b/internal/jsonrpc2_v2/serve_test.go
@@ -0,0 +1,140 @@
+// Copyright 2020 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package jsonrpc2_test
+
+import (
+ "context"
+ "errors"
+ "testing"
+ "time"
+
+ jsonrpc2 "golang.org/x/tools/internal/jsonrpc2_v2"
+ "golang.org/x/tools/internal/stack/stacktest"
+)
+
+func TestIdleTimeout(t *testing.T) {
+ stacktest.NoLeak(t)
+ ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+ defer cancel()
+
+ listener, err := jsonrpc2.NetListener(ctx, "tcp", "localhost:0", jsonrpc2.NetListenOptions{})
+ if err != nil {
+ t.Fatal(err)
+ }
+ listener = jsonrpc2.NewIdleListener(100*time.Millisecond, listener)
+ defer listener.Close()
+ server, err := jsonrpc2.Serve(ctx, listener, jsonrpc2.ConnectionOptions{})
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ connect := func() *jsonrpc2.Connection {
+ client, err := jsonrpc2.Dial(ctx,
+ listener.Dialer(),
+ jsonrpc2.ConnectionOptions{})
+ if err != nil {
+ t.Fatal(err)
+ }
+ return client
+ }
+ // Exercise some connection/disconnection patterns, and then assert that when
+ // our timer fires, the server exits.
+ conn1 := connect()
+ conn2 := connect()
+ if err := conn1.Close(); err != nil {
+ t.Fatalf("conn1.Close failed with error: %v", err)
+ }
+ if err := conn2.Close(); err != nil {
+ t.Fatalf("conn2.Close failed with error: %v", err)
+ }
+ conn3 := connect()
+ if err := conn3.Close(); err != nil {
+ t.Fatalf("conn3.Close failed with error: %v", err)
+ }
+
+ serverError := server.Wait()
+
+ if !errors.Is(serverError, jsonrpc2.ErrIdleTimeout) {
+ t.Errorf("run() returned error %v, want %v", serverError, jsonrpc2.ErrIdleTimeout)
+ }
+}
+
+type msg struct {
+ Msg string
+}
+
+type fakeHandler struct{}
+
+func (fakeHandler) Handle(ctx context.Context, req *jsonrpc2.Request) (interface{}, error) {
+ switch req.Method {
+ case "ping":
+ return &msg{"pong"}, nil
+ default:
+ return nil, jsonrpc2.ErrNotHandled
+ }
+}
+
+func TestServe(t *testing.T) {
+ stacktest.NoLeak(t)
+ ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+ defer cancel()
+
+ tests := []struct {
+ name string
+ factory func(context.Context) (jsonrpc2.Listener, error)
+ }{
+ {"tcp", func(ctx context.Context) (jsonrpc2.Listener, error) {
+ return jsonrpc2.NetListener(ctx, "tcp", "localhost:0", jsonrpc2.NetListenOptions{})
+ }},
+ {"pipe", func(ctx context.Context) (jsonrpc2.Listener, error) {
+ return jsonrpc2.NetPipe(ctx)
+ }},
+ }
+
+ for _, test := range tests {
+ t.Run(test.name, func(t *testing.T) {
+ fake, err := test.factory(ctx)
+ if err != nil {
+ t.Fatal(err)
+ }
+ conn, shutdown, err := newFake(ctx, fake)
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer shutdown(ctx)
+ var got msg
+ if err := conn.Call(ctx, "ping", &msg{"ting"}).Await(ctx, &got); err != nil {
+ t.Fatal(err)
+ }
+ if want := "pong"; got.Msg != want {
+ t.Errorf("conn.Call(...): returned %q, want %q", got, want)
+ }
+ })
+ }
+}
+
+func newFake(ctx context.Context, l jsonrpc2.Listener) (*jsonrpc2.Connection, func(context.Context), error) {
+ l = jsonrpc2.NewIdleListener(100*time.Millisecond, l)
+ server, err := jsonrpc2.Serve(ctx, l, jsonrpc2.ConnectionOptions{
+ Handler: fakeHandler{},
+ })
+ if err != nil {
+ return nil, nil, err
+ }
+
+ client, err := jsonrpc2.Dial(ctx,
+ l.Dialer(),
+ jsonrpc2.ConnectionOptions{
+ Handler: fakeHandler{},
+ })
+ if err != nil {
+ return nil, nil, err
+ }
+ return client, func(ctx context.Context) {
+ l.Close()
+ client.Close()
+ server.Wait()
+ }, nil
+}
diff --git a/internal/jsonrpc2_v2/wire.go b/internal/jsonrpc2_v2/wire.go
new file mode 100644
index 0000000..97b1ae8
--- /dev/null
+++ b/internal/jsonrpc2_v2/wire.go
@@ -0,0 +1,74 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package jsonrpc2
+
+import (
+ "encoding/json"
+)
+
+// This file contains the go forms of the wire specification.
+// see http://www.jsonrpc.org/specification for details
+
+var (
+ // ErrUnknown should be used for all non coded errors.
+ ErrUnknown = NewError(-32001, "JSON RPC unknown error")
+ // ErrParse is used when invalid JSON was received by the server.
+ ErrParse = NewError(-32700, "JSON RPC parse error")
+ // ErrInvalidRequest is used when the JSON sent is not a valid Request object.
+ ErrInvalidRequest = NewError(-32600, "JSON RPC invalid request")
+ // ErrMethodNotFound should be returned by the handler when the method does
+ // not exist / is not available.
+ ErrMethodNotFound = NewError(-32601, "JSON RPC method not found")
+ // ErrInvalidParams should be returned by the handler when method
+ // parameter(s) were invalid.
+ ErrInvalidParams = NewError(-32602, "JSON RPC invalid params")
+ // ErrInternal indicates a failure to process a call correctly
+ ErrInternal = NewError(-32603, "JSON RPC internal error")
+
+ // The following errors are not part of the json specification, but
+ // compliant extensions specific to this implimentation.
+
+ // ErrServerOverloaded is returned when a message was refused due to a
+ // server being temporarily unable to accept any new messages.
+ ErrServerOverloaded = NewError(-32000, "JSON RPC overloaded")
+)
+
+const wireVersion = "2.0"
+
+// wireCombined has all the fields of both Request and Response.
+// We can decode this and then work out which it is.
+type wireCombined struct {
+ VersionTag string `json:"jsonrpc"`
+ ID interface{} `json:"id,omitempty"`
+ Method string `json:"method,omitempty"`
+ Params json.RawMessage `json:"params,omitempty"`
+ Result json.RawMessage `json:"result,omitempty"`
+ Error *wireError `json:"error,omitempty"`
+}
+
+// wireError represents a structured error in a Response.
+type wireError struct {
+ // Code is an error code indicating the type of failure.
+ Code int64 `json:"code"`
+ // Message is a short description of the error.
+ Message string `json:"message"`
+ // Data is optional structured data containing additional information about the error.
+ Data json.RawMessage `json:"data,omitempty"`
+}
+
+// NewError returns an error that will encode on the wire correctly.
+// The standard codes are made available from this package, this function should
+// only be used to build errors for application specific codes as allowed by the
+// specification.
+func NewError(code int64, message string) error {
+ return &wireError{
+ Code: code,
+ Message: message,
+ }
+}
+
+func (err *wireError) Error() string {
+ return err.Message
+}
diff --git a/internal/jsonrpc2_v2/wire_test.go b/internal/jsonrpc2_v2/wire_test.go
new file mode 100644
index 0000000..e933737
--- /dev/null
+++ b/internal/jsonrpc2_v2/wire_test.go
@@ -0,0 +1,118 @@
+// Copyright 2020 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package jsonrpc2_test
+
+import (
+ "bytes"
+ "encoding/json"
+ "reflect"
+ "testing"
+
+ jsonrpc2 "golang.org/x/tools/internal/jsonrpc2_v2"
+)
+
+func TestWireMessage(t *testing.T) {
+ for _, test := range []struct {
+ name string
+ msg jsonrpc2.Message
+ encoded []byte
+ }{{
+ name: "notification",
+ msg: newNotification("alive", nil),
+ encoded: []byte(`{"jsonrpc":"2.0","method":"alive"}`),
+ }, {
+ name: "call",
+ msg: newCall("msg1", "ping", nil),
+ encoded: []byte(`{"jsonrpc":"2.0","id":"msg1","method":"ping"}`),
+ }, {
+ name: "response",
+ msg: newResponse("msg2", "pong", nil),
+ encoded: []byte(`{"jsonrpc":"2.0","id":"msg2","result":"pong"}`),
+ }, {
+ name: "numerical id",
+ msg: newCall(1, "poke", nil),
+ encoded: []byte(`{"jsonrpc":"2.0","id":1,"method":"poke"}`),
+ }, {
+ // originally reported in #39719, this checks that result is not present if
+ // it is an error response
+ name: "computing fix edits",
+ msg: newResponse(3, nil, jsonrpc2.NewError(0, "computing fix edits")),
+ encoded: []byte(`{
+ "jsonrpc":"2.0",
+ "id":3,
+ "error":{
+ "code":0,
+ "message":"computing fix edits"
+ }
+ }`),
+ }} {
+ b, err := jsonrpc2.EncodeMessage(test.msg)
+ if err != nil {
+ t.Fatal(err)
+ }
+ checkJSON(t, b, test.encoded)
+ msg, err := jsonrpc2.DecodeMessage(test.encoded)
+ if err != nil {
+ t.Fatal(err)
+ }
+ if !reflect.DeepEqual(msg, test.msg) {
+ t.Errorf("decoded message does not match\nGot:\n%+#v\nWant:\n%+#v", msg, test.msg)
+ }
+ }
+}
+
+func newNotification(method string, params interface{}) jsonrpc2.Message {
+ msg, err := jsonrpc2.NewNotification(method, params)
+ if err != nil {
+ panic(err)
+ }
+ return msg
+}
+
+func newID(id interface{}) jsonrpc2.ID {
+ switch v := id.(type) {
+ case nil:
+ return jsonrpc2.ID{}
+ case string:
+ return jsonrpc2.StringID(v)
+ case int:
+ return jsonrpc2.Int64ID(int64(v))
+ case int64:
+ return jsonrpc2.Int64ID(v)
+ default:
+ panic("invalid ID type")
+ }
+}
+
+func newCall(id interface{}, method string, params interface{}) jsonrpc2.Message {
+ msg, err := jsonrpc2.NewCall(newID(id), method, params)
+ if err != nil {
+ panic(err)
+ }
+ return msg
+}
+
+func newResponse(id interface{}, result interface{}, rerr error) jsonrpc2.Message {
+ msg, err := jsonrpc2.NewResponse(newID(id), result, rerr)
+ if err != nil {
+ panic(err)
+ }
+ return msg
+}
+
+func checkJSON(t *testing.T, got, want []byte) {
+ // compare the compact form, to allow for formatting differences
+ g := &bytes.Buffer{}
+ if err := json.Compact(g, []byte(got)); err != nil {
+ t.Fatal(err)
+ }
+ w := &bytes.Buffer{}
+ if err := json.Compact(w, []byte(want)); err != nil {
+ t.Fatal(err)
+ }
+ if g.String() != w.String() {
+ t.Errorf("encoded message does not match\nGot:\n%s\nWant:\n%s", g, w)
+ }
+}
diff --git a/internal/lsp/cache/analysis.go b/internal/lsp/cache/analysis.go
index 19675af..e3d7443 100644
--- a/internal/lsp/cache/analysis.go
+++ b/internal/lsp/cache/analysis.go
@@ -351,7 +351,7 @@
}
for _, diag := range diagnostics {
- srcDiags, err := analysisDiagnosticDiagnostics(ctx, snapshot, pkg, analyzer, diag)
+ srcDiags, err := analysisDiagnosticDiagnostics(snapshot, pkg, analyzer, diag)
if err != nil {
event.Error(ctx, "unable to compute analysis error position", err, tag.Category.Of(diag.Category), tag.Package.Of(pkg.ID()))
continue
@@ -423,6 +423,7 @@
clone := *diag
clone.SuggestedFixes = eaDiag.SuggestedFixes
clone.Tags = eaDiag.Tags
+ clone.Analyzer = eaDiag.Analyzer
diag = &clone
}
}
diff --git a/internal/lsp/cache/cache.go b/internal/lsp/cache/cache.go
index fa1b530..7221874 100644
--- a/internal/lsp/cache/cache.go
+++ b/internal/lsp/cache/cache.go
@@ -29,7 +29,7 @@
"golang.org/x/tools/internal/span"
)
-func New(ctx context.Context, options func(*source.Options)) *Cache {
+func New(options func(*source.Options)) *Cache {
index := atomic.AddInt64(&cacheIndex, 1)
c := &Cache{
id: strconv.FormatInt(index, 10),
@@ -270,7 +270,7 @@
return 0
}
var count int64
- ast.Inspect(f, func(n ast.Node) bool {
+ ast.Inspect(f, func(_ ast.Node) bool {
count += 32 // nodes are pretty small.
return true
})
diff --git a/internal/lsp/cache/check.go b/internal/lsp/cache/check.go
index 9df626b..65c3371 100644
--- a/internal/lsp/cache/check.go
+++ b/internal/lsp/cache/check.go
@@ -55,6 +55,26 @@
}
}
+func (ph *packageHandle) imports(ctx context.Context, s source.Snapshot) (result []string) {
+ for _, pgh := range ph.goFiles {
+ f, err := s.ParseGo(ctx, pgh.file, source.ParseHeader)
+ if err != nil {
+ continue
+ }
+ seen := map[string]struct{}{}
+ for _, impSpec := range f.File.Imports {
+ imp := strings.Trim(impSpec.Path.Value, `"`)
+ if _, ok := seen[imp]; !ok {
+ seen[imp] = struct{}{}
+ result = append(result, imp)
+ }
+ }
+ }
+
+ sort.Strings(result)
+ return result
+}
+
// packageData contains the data produced by type-checking a package.
type packageData struct {
pkg *pkg
@@ -162,7 +182,7 @@
depKeys = append(depKeys, depHandle.key)
}
experimentalKey := s.View().Options().ExperimentalPackageCacheKey
- ph.key = checkPackageKey(ctx, ph.m.id, compiledGoFiles, m.config, depKeys, mode, experimentalKey)
+ ph.key = checkPackageKey(ph.m.id, compiledGoFiles, m.config, depKeys, mode, experimentalKey)
return ph, deps, nil
}
@@ -174,7 +194,7 @@
}
}
-func checkPackageKey(ctx context.Context, id packageID, pghs []*parseGoHandle, cfg *packages.Config, deps []packageHandleKey, mode source.ParseMode, experimentalKey bool) packageHandleKey {
+func checkPackageKey(id packageID, pghs []*parseGoHandle, cfg *packages.Config, deps []packageHandleKey, mode source.ParseMode, experimentalKey bool) packageHandleKey {
b := bytes.NewBuffer(nil)
b.WriteString(string(id))
if !experimentalKey {
@@ -381,7 +401,7 @@
// Try to attach error messages to the file as much as possible.
var found bool
for _, e := range m.errors {
- srcDiags, err := goPackagesErrorDiagnostics(ctx, snapshot, pkg, e)
+ srcDiags, err := goPackagesErrorDiagnostics(snapshot, pkg, e)
if err != nil {
continue
}
@@ -443,7 +463,7 @@
if len(m.errors) != 0 {
pkg.hasListOrParseErrors = true
for _, e := range m.errors {
- diags, err := goPackagesErrorDiagnostics(ctx, snapshot, pkg, e)
+ diags, err := goPackagesErrorDiagnostics(snapshot, pkg, e)
if err != nil {
event.Error(ctx, "unable to compute positions for list errors", err, tag.Package.Of(pkg.ID()))
continue
@@ -468,7 +488,7 @@
if len(parseErrors) != 0 {
pkg.hasListOrParseErrors = true
for _, e := range parseErrors {
- diags, err := parseErrorDiagnostics(ctx, snapshot, pkg, e)
+ diags, err := parseErrorDiagnostics(snapshot, pkg, e)
if err != nil {
event.Error(ctx, "unable to compute positions for parse errors", err, tag.Package.Of(pkg.ID()))
continue
@@ -486,7 +506,7 @@
for _, e := range expandErrors(typeErrors, snapshot.View().Options().RelatedInformationSupported) {
pkg.hasTypeErrors = true
- diags, err := typeErrorDiagnostics(ctx, snapshot, pkg, e)
+ diags, err := typeErrorDiagnostics(snapshot, pkg, e)
if err != nil {
event.Error(ctx, "unable to compute positions for type errors", err, tag.Package.Of(pkg.ID()))
continue
@@ -764,7 +784,7 @@
if i == -1 {
return true
}
- if pkgPath == "command-line-arguments" {
+ if isCommandLineArguments(string(pkgPath)) {
return true
}
return strings.HasPrefix(string(pkgPath), string(importPkgPath[:i]))
diff --git a/internal/lsp/cache/errors.go b/internal/lsp/cache/errors.go
index f18d5ed..9d109de 100644
--- a/internal/lsp/cache/errors.go
+++ b/internal/lsp/cache/errors.go
@@ -5,7 +5,6 @@
package cache
import (
- "context"
"fmt"
"go/scanner"
"go/token"
@@ -25,9 +24,9 @@
errors "golang.org/x/xerrors"
)
-func goPackagesErrorDiagnostics(ctx context.Context, snapshot *snapshot, pkg *pkg, e packages.Error) ([]*source.Diagnostic, error) {
- if msg, spn, ok := parseGoListImportCycleError(ctx, snapshot, e, pkg); ok {
- rng, err := spanToRange(snapshot, pkg, spn)
+func goPackagesErrorDiagnostics(snapshot *snapshot, pkg *pkg, e packages.Error) ([]*source.Diagnostic, error) {
+ if msg, spn, ok := parseGoListImportCycleError(snapshot, e, pkg); ok {
+ rng, err := spanToRange(pkg, spn)
if err != nil {
return nil, err
}
@@ -44,7 +43,7 @@
if e.Pos == "" {
spn = parseGoListError(e.Msg, pkg.m.config.Dir)
// We may not have been able to parse a valid span. Apply the errors to all files.
- if _, err := spanToRange(snapshot, pkg, spn); err != nil {
+ if _, err := spanToRange(pkg, spn); err != nil {
var diags []*source.Diagnostic
for _, cgf := range pkg.compiledGoFiles {
diags = append(diags, &source.Diagnostic{
@@ -60,7 +59,7 @@
spn = span.ParseInDir(e.Pos, pkg.m.config.Dir)
}
- rng, err := spanToRange(snapshot, pkg, spn)
+ rng, err := spanToRange(pkg, spn)
if err != nil {
return nil, err
}
@@ -73,7 +72,7 @@
}}, nil
}
-func parseErrorDiagnostics(ctx context.Context, snapshot *snapshot, pkg *pkg, errList scanner.ErrorList) ([]*source.Diagnostic, error) {
+func parseErrorDiagnostics(snapshot *snapshot, pkg *pkg, errList scanner.ErrorList) ([]*source.Diagnostic, error) {
// The first parser error is likely the root cause of the problem.
if errList.Len() <= 0 {
return nil, errors.Errorf("no errors in %v", errList)
@@ -88,7 +87,7 @@
if err != nil {
return nil, err
}
- rng, err := spanToRange(snapshot, pkg, spn)
+ rng, err := spanToRange(pkg, spn)
if err != nil {
return nil, err
}
@@ -103,12 +102,12 @@
var importErrorRe = regexp.MustCompile(`could not import ([^\s]+)`)
-func typeErrorDiagnostics(ctx context.Context, snapshot *snapshot, pkg *pkg, e extendedError) ([]*source.Diagnostic, error) {
+func typeErrorDiagnostics(snapshot *snapshot, pkg *pkg, e extendedError) ([]*source.Diagnostic, error) {
code, spn, err := typeErrorData(snapshot.FileSet(), pkg, e.primary)
if err != nil {
return nil, err
}
- rng, err := spanToRange(snapshot, pkg, spn)
+ rng, err := spanToRange(pkg, spn)
if err != nil {
return nil, err
}
@@ -129,7 +128,7 @@
if err != nil {
return nil, err
}
- rng, err := spanToRange(snapshot, pkg, secondarySpan)
+ rng, err := spanToRange(pkg, secondarySpan)
if err != nil {
return nil, err
}
@@ -163,10 +162,10 @@
if err != nil {
return nil, err
}
- return []source.SuggestedFix{source.SuggestedFixFromCommand(cmd)}, nil
+ return []source.SuggestedFix{source.SuggestedFixFromCommand(cmd, protocol.QuickFix)}, nil
}
-func analysisDiagnosticDiagnostics(ctx context.Context, snapshot *snapshot, pkg *pkg, a *analysis.Analyzer, e *analysis.Diagnostic) ([]*source.Diagnostic, error) {
+func analysisDiagnosticDiagnostics(snapshot *snapshot, pkg *pkg, a *analysis.Analyzer, e *analysis.Diagnostic) ([]*source.Diagnostic, error) {
var srcAnalyzer *source.Analyzer
// Find the analyzer that generated this diagnostic.
for _, sa := range source.EnabledAnalyzers(snapshot) {
@@ -180,11 +179,15 @@
if err != nil {
return nil, err
}
- rng, err := spanToRange(snapshot, pkg, spn)
+ rng, err := spanToRange(pkg, spn)
if err != nil {
return nil, err
}
- fixes, err := suggestedAnalysisFixes(snapshot, pkg, e)
+ kinds := srcAnalyzer.ActionKind
+ if len(srcAnalyzer.ActionKind) == 0 {
+ kinds = append(kinds, protocol.QuickFix)
+ }
+ fixes, err := suggestedAnalysisFixes(snapshot, pkg, e, kinds)
if err != nil {
return nil, err
}
@@ -197,9 +200,11 @@
if err != nil {
return nil, err
}
- fixes = append(fixes, source.SuggestedFixFromCommand(cmd))
+ for _, kind := range kinds {
+ fixes = append(fixes, source.SuggestedFixFromCommand(cmd, kind))
+ }
}
- related, err := relatedInformation(snapshot, pkg, e)
+ related, err := relatedInformation(pkg, snapshot.FileSet(), e)
if err != nil {
return nil, err
}
@@ -242,7 +247,7 @@
return fmt.Sprintf("https://%s/golang.org/x/tools/internal/typesinternal#%s", target, code.String())
}
-func suggestedAnalysisFixes(snapshot *snapshot, pkg *pkg, diag *analysis.Diagnostic) ([]source.SuggestedFix, error) {
+func suggestedAnalysisFixes(snapshot *snapshot, pkg *pkg, diag *analysis.Diagnostic, kinds []protocol.CodeActionKind) ([]source.SuggestedFix, error) {
var fixes []source.SuggestedFix
for _, fix := range diag.SuggestedFixes {
edits := make(map[span.URI][]protocol.TextEdit)
@@ -251,7 +256,7 @@
if err != nil {
return nil, err
}
- rng, err := spanToRange(snapshot, pkg, spn)
+ rng, err := spanToRange(pkg, spn)
if err != nil {
return nil, err
}
@@ -260,22 +265,26 @@
NewText: string(e.NewText),
})
}
- fixes = append(fixes, source.SuggestedFix{
- Title: fix.Message,
- Edits: edits,
- })
+ for _, kind := range kinds {
+ fixes = append(fixes, source.SuggestedFix{
+ Title: fix.Message,
+ Edits: edits,
+ ActionKind: kind,
+ })
+ }
+
}
return fixes, nil
}
-func relatedInformation(snapshot *snapshot, pkg *pkg, diag *analysis.Diagnostic) ([]source.RelatedInformation, error) {
+func relatedInformation(pkg *pkg, fset *token.FileSet, diag *analysis.Diagnostic) ([]source.RelatedInformation, error) {
var out []source.RelatedInformation
for _, related := range diag.Related {
- spn, err := span.NewRange(snapshot.view.session.cache.fset, related.Pos, related.End).Span()
+ spn, err := span.NewRange(fset, related.Pos, related.End).Span()
if err != nil {
return nil, err
}
- rng, err := spanToRange(snapshot, pkg, spn)
+ rng, err := spanToRange(pkg, spn)
if err != nil {
return nil, err
}
@@ -315,7 +324,7 @@
// spanToRange converts a span.Span to a protocol.Range,
// assuming that the span belongs to the package whose diagnostics are being computed.
-func spanToRange(snapshot *snapshot, pkg *pkg, spn span.Span) (protocol.Range, error) {
+func spanToRange(pkg *pkg, spn span.Span) (protocol.Range, error) {
pgf, err := pkg.File(spn.URI())
if err != nil {
return protocol.Range{}, err
@@ -340,7 +349,7 @@
return span.ParseInDir(input[:msgIndex], wd)
}
-func parseGoListImportCycleError(ctx context.Context, snapshot *snapshot, e packages.Error, pkg *pkg) (string, span.Span, bool) {
+func parseGoListImportCycleError(snapshot *snapshot, e packages.Error, pkg *pkg) (string, span.Span, bool) {
re := regexp.MustCompile(`(.*): import stack: \[(.+)\]`)
matches := re.FindStringSubmatch(strings.TrimSpace(e.Msg))
if len(matches) < 3 {
diff --git a/internal/lsp/cache/mod.go b/internal/lsp/cache/mod.go
index 2e1917a..a915d05 100644
--- a/internal/lsp/cache/mod.go
+++ b/internal/lsp/cache/mod.go
@@ -358,7 +358,7 @@
Source: source.ListError,
Message: `Inconsistent vendoring detected. Please re-run "go mod vendor".
See https://github.com/golang/go/issues/39164 for more detail on this issue.`,
- SuggestedFixes: []source.SuggestedFix{source.SuggestedFixFromCommand(cmd)},
+ SuggestedFixes: []source.SuggestedFix{source.SuggestedFixFromCommand(cmd, protocol.QuickFix)},
}, nil
case strings.Contains(goCmdError, "updates to go.sum needed"), strings.Contains(goCmdError, "missing go.sum entry"):
@@ -385,8 +385,8 @@
Source: source.ListError,
Message: msg,
SuggestedFixes: []source.SuggestedFix{
- source.SuggestedFixFromCommand(tidyCmd),
- source.SuggestedFixFromCommand(updateCmd),
+ source.SuggestedFixFromCommand(tidyCmd, protocol.QuickFix),
+ source.SuggestedFixFromCommand(updateCmd, protocol.QuickFix),
},
}, nil
case strings.Contains(goCmdError, "disabled by GOPROXY=off") && innermost != nil:
@@ -405,7 +405,7 @@
Severity: protocol.SeverityError,
Message: fmt.Sprintf("%v@%v has not been downloaded", innermost.Path, innermost.Version),
Source: source.ListError,
- SuggestedFixes: []source.SuggestedFix{source.SuggestedFixFromCommand(cmd)},
+ SuggestedFixes: []source.SuggestedFix{source.SuggestedFixFromCommand(cmd, protocol.QuickFix)},
}, nil
default:
return &source.Diagnostic{
diff --git a/internal/lsp/cache/mod_tidy.go b/internal/lsp/cache/mod_tidy.go
index 6891a39..7c92746 100644
--- a/internal/lsp/cache/mod_tidy.go
+++ b/internal/lsp/cache/mod_tidy.go
@@ -77,11 +77,11 @@
Diagnostics: criticalErr.DiagList,
}, nil
}
- workspacePkgs, err := s.WorkspacePackages(ctx)
+ workspacePkgs, err := s.workspacePackageHandles(ctx)
if err != nil {
return nil, err
}
- importHash, err := hashImports(ctx, workspacePkgs)
+ importHash, err := s.hashImports(ctx, workspacePkgs)
if err != nil {
return nil, err
}
@@ -167,18 +167,16 @@
return rangeFromPositions(pmf.Mapper, pmf.File.Module.Syntax.Start, pmf.File.Module.Syntax.End)
}
-func hashImports(ctx context.Context, wsPackages []source.Package) (string, error) {
- results := make(map[string]bool)
+func (s *snapshot) hashImports(ctx context.Context, wsPackages []*packageHandle) (string, error) {
+ seen := map[string]struct{}{}
var imports []string
- for _, pkg := range wsPackages {
- for _, path := range pkg.Imports() {
- imp := path.PkgPath()
- if _, ok := results[imp]; !ok {
- results[imp] = true
+ for _, ph := range wsPackages {
+ for _, imp := range ph.imports(ctx, s) {
+ if _, ok := seen[imp]; !ok {
imports = append(imports, imp)
+ seen[imp] = struct{}{}
}
}
- imports = append(imports, pkg.MissingDependencies()...)
}
sort.Strings(imports)
hashed := strings.Join(imports, ",")
@@ -188,7 +186,7 @@
// modTidyDiagnostics computes the differences between the original and tidied
// go.mod files to produce diagnostic and suggested fixes. Some diagnostics
// may appear on the Go files that import packages from missing modules.
-func modTidyDiagnostics(ctx context.Context, snapshot source.Snapshot, pm *source.ParsedModule, ideal *modfile.File, workspacePkgs []source.Package) (diagnostics []*source.Diagnostic, err error) {
+func modTidyDiagnostics(ctx context.Context, snapshot source.Snapshot, pm *source.ParsedModule, ideal *modfile.File, workspacePkgs []*packageHandle) (diagnostics []*source.Diagnostic, err error) {
// First, determine which modules are unused and which are missing from the
// original go.mod file.
var (
@@ -224,7 +222,7 @@
// statements in the Go files in which the dependencies are used.
missingModuleFixes := map[*modfile.Require][]source.SuggestedFix{}
for _, req := range missing {
- srcDiag, err := missingModuleDiagnostic(snapshot, pm, req)
+ srcDiag, err := missingModuleDiagnostic(pm, req)
if err != nil {
return nil, err
}
@@ -233,17 +231,13 @@
}
// Add diagnostics for missing modules anywhere they are imported in the
// workspace.
- for _, pkg := range workspacePkgs {
+ for _, ph := range workspacePkgs {
missingImports := map[string]*modfile.Require{}
- var importedPkgs []string
// If -mod=readonly is not set we may have successfully imported
// packages from missing modules. Otherwise they'll be in
// MissingDependencies. Combine both.
- for _, imp := range pkg.Imports() {
- importedPkgs = append(importedPkgs, imp.PkgPath())
- }
- importedPkgs = append(importedPkgs, pkg.MissingDependencies()...)
+ importedPkgs := ph.imports(ctx, snapshot)
for _, imp := range importedPkgs {
if req, ok := missing[imp]; ok {
@@ -274,7 +268,11 @@
if len(missingImports) == 0 {
continue
}
- for _, pgf := range pkg.CompiledGoFiles() {
+ for _, pgh := range ph.compiledGoFiles {
+ pgf, err := snapshot.ParseGo(ctx, pgh.file, source.ParseHeader)
+ if err != nil {
+ continue
+ }
file, m := pgf.File, pgf.Mapper
if file == nil || m == nil {
continue
@@ -311,7 +309,7 @@
// Finally, add errors for any unused dependencies.
onlyDiagnostic := len(diagnostics) == 0 && len(unused) == 1
for _, req := range unused {
- srcErr, err := unusedDiagnostic(pm.Mapper, req, onlyDiagnostic, snapshot.View().Options().ComputeEdits)
+ srcErr, err := unusedDiagnostic(pm.Mapper, req, onlyDiagnostic)
if err != nil {
return nil, err
}
@@ -321,7 +319,7 @@
}
// unusedDiagnostic returns a source.Diagnostic for an unused require.
-func unusedDiagnostic(m *protocol.ColumnMapper, req *modfile.Require, onlyDiagnostic bool, computeEdits diff.ComputeEdits) (*source.Diagnostic, error) {
+func unusedDiagnostic(m *protocol.ColumnMapper, req *modfile.Require, onlyDiagnostic bool) (*source.Diagnostic, error) {
rng, err := rangeFromPositions(m, req.Syntax.Start, req.Syntax.End)
if err != nil {
return nil, err
@@ -341,7 +339,7 @@
Severity: protocol.SeverityWarning,
Source: source.ModTidyError,
Message: fmt.Sprintf("%s is not used in this module", req.Mod.Path),
- SuggestedFixes: []source.SuggestedFix{source.SuggestedFixFromCommand(cmd)},
+ SuggestedFixes: []source.SuggestedFix{source.SuggestedFixFromCommand(cmd, protocol.QuickFix)},
}, nil
}
@@ -383,11 +381,12 @@
Edits: map[span.URI][]protocol.TextEdit{
m.URI: edits,
},
+ ActionKind: protocol.QuickFix,
}},
}, nil
}
-func missingModuleDiagnostic(snapshot source.Snapshot, pm *source.ParsedModule, req *modfile.Require) (*source.Diagnostic, error) {
+func missingModuleDiagnostic(pm *source.ParsedModule, req *modfile.Require) (*source.Diagnostic, error) {
var rng protocol.Range
// Default to the start of the file if there is no module declaration.
if pm.File != nil && pm.File.Module != nil && pm.File.Module.Syntax != nil {
@@ -413,7 +412,7 @@
Severity: protocol.SeverityError,
Source: source.ModTidyError,
Message: fmt.Sprintf("%s is not in your go.mod file", req.Mod.Path),
- SuggestedFixes: []source.SuggestedFix{source.SuggestedFixFromCommand(cmd)},
+ SuggestedFixes: []source.SuggestedFix{source.SuggestedFixFromCommand(cmd, protocol.QuickFix)},
}, nil
}
diff --git a/internal/lsp/cache/session.go b/internal/lsp/cache/session.go
index 928249e..ba155c7 100644
--- a/internal/lsp/cache/session.go
+++ b/internal/lsp/cache/session.go
@@ -7,7 +7,6 @@
import (
"context"
"fmt"
- "os"
"strconv"
"sync"
"sync/atomic"
@@ -30,7 +29,7 @@
viewMu sync.Mutex
views []*View
- viewMap map[span.URI]*View
+ viewMap map[span.URI]*View // map of URI->best view
overlayMu sync.Mutex
overlays map[span.URI]*overlay
@@ -244,15 +243,13 @@
snapshot.initialize(initCtx, true)
if v.tempWorkspace != "" {
var err error
- if err = os.Mkdir(v.tempWorkspace.Filename(), 0700); err == nil {
- var wsdir span.URI
- wsdir, err = snapshot.getWorkspaceDir(initCtx)
- if err == nil {
- err = copyWorkspace(v.tempWorkspace, wsdir)
- }
+ var wsdir span.URI
+ wsdir, err = snapshot.getWorkspaceDir(initCtx)
+ if err == nil {
+ err = copyWorkspace(v.tempWorkspace, wsdir)
}
if err != nil {
- event.Error(initCtx, "creating workspace dir", err)
+ event.Error(ctx, "copying workspace dir", err)
}
}
release()
diff --git a/internal/lsp/cache/snapshot.go b/internal/lsp/cache/snapshot.go
index b80d518..28d0449 100644
--- a/internal/lsp/cache/snapshot.go
+++ b/internal/lsp/cache/snapshot.go
@@ -200,14 +200,10 @@
verboseOutput := s.view.options.VerboseOutput
s.view.optionsMu.Unlock()
- // Forcibly disable GOPACKAGESDRIVER. It's incompatible with the
- // packagesinternal APIs we use, and we really only support the go command
- // anyway.
- env := append(append([]string{}, inv.Env...), "GOPACKAGESDRIVER=off")
cfg := &packages.Config{
Context: ctx,
Dir: inv.WorkingDir,
- Env: env,
+ Env: inv.Env,
BuildFlags: inv.BuildFlags,
Mode: packages.NeedName |
packages.NeedFiles |
@@ -761,12 +757,13 @@
}
func (s *snapshot) WorkspacePackages(ctx context.Context) ([]source.Package, error) {
- if err := s.awaitLoaded(ctx); err != nil {
+ phs, err := s.workspacePackageHandles(ctx)
+ if err != nil {
return nil, err
}
var pkgs []source.Package
- for _, pkgID := range s.workspacePackageIDs() {
- pkg, err := s.checkedPackage(ctx, pkgID, s.workspaceParseMode(pkgID))
+ for _, ph := range phs {
+ pkg, err := ph.check(ctx, s)
if err != nil {
return nil, err
}
@@ -775,6 +772,21 @@
return pkgs, nil
}
+func (s *snapshot) workspacePackageHandles(ctx context.Context) ([]*packageHandle, error) {
+ if err := s.awaitLoaded(ctx); err != nil {
+ return nil, err
+ }
+ var phs []*packageHandle
+ for _, pkgID := range s.workspacePackageIDs() {
+ ph, err := s.buildPackageHandle(ctx, pkgID, s.workspaceParseMode(pkgID))
+ if err != nil {
+ return nil, err
+ }
+ phs = append(phs, ph)
+ }
+ return phs, nil
+}
+
func (s *snapshot) KnownPackages(ctx context.Context) ([]source.Package, error) {
if err := s.awaitLoaded(ctx); err != nil {
return nil, err
@@ -1085,7 +1097,7 @@
func containsCommandLineArguments(pkgs []source.Package) bool {
for _, pkg := range pkgs {
- if strings.Contains(pkg.ID(), "command-line-arguments") {
+ if isCommandLineArguments(pkg.ID()) {
return true
}
}
@@ -1096,6 +1108,16 @@
// Do not return results until the snapshot's view has been initialized.
s.AwaitInitialized(ctx)
+ // TODO(rstambler): Should we be more careful about returning the
+ // initialization error? Is it possible for the initialization error to be
+ // corrected without a successful reinitialization?
+ s.mu.Lock()
+ initializedErr := s.initializedErr
+ s.mu.Unlock()
+ if initializedErr != nil {
+ return initializedErr
+ }
+
if ctx.Err() != nil {
return &source.CriticalError{MainError: ctx.Err()}
}
@@ -1114,10 +1136,7 @@
DiagList: diags,
}
}
- // TODO(rstambler): Should we be more careful about returning the
- // initialization error? Is it possible for the initialization error to be
- // corrected without a successful reinitialization?
- return s.initializedErr
+ return nil
}
func (s *snapshot) AwaitInitialized(ctx context.Context) {
@@ -1173,11 +1192,27 @@
// that exist only in overlays. As a workaround, we search all of the files
// available in the snapshot and reload their metadata individually using a
// file= query if the metadata is unavailable.
- scopes := s.orphanedFileScopes()
+ files := s.orphanedFiles()
+
+ // Files without a valid package declaration can't be loaded. Don't try.
+ var scopes []interface{}
+ for _, file := range files {
+ pgf, err := s.ParseGo(ctx, file, source.ParseHeader)
+ if err != nil {
+ continue
+ }
+ if !pgf.File.Package.IsValid() {
+ continue
+ }
+ scopes = append(scopes, fileURI(file.URI()))
+ }
+
if len(scopes) == 0 {
return nil
}
+ // The regtests match this exact log message, keep them in sync.
+ event.Log(ctx, "reloadOrphanedFiles reloading", tag.Query.Of(scopes))
err := s.load(ctx, false, scopes...)
// If we failed to load some files, i.e. they have no metadata,
@@ -1203,11 +1238,11 @@
return nil
}
-func (s *snapshot) orphanedFileScopes() []interface{} {
+func (s *snapshot) orphanedFiles() []source.VersionedFileHandle {
s.mu.Lock()
defer s.mu.Unlock()
- scopeSet := make(map[span.URI]struct{})
+ var files []source.VersionedFileHandle
for uri, fh := range s.files {
// Don't try to reload metadata for go.mod files.
if fh.Kind() != source.Go {
@@ -1228,14 +1263,10 @@
continue
}
if s.getMetadataForURILocked(uri) == nil {
- scopeSet[uri] = struct{}{}
+ files = append(files, fh)
}
}
- var scopes []interface{}
- for uri := range scopeSet {
- scopes = append(scopes, fileURI(uri))
- }
- return scopes
+ return files
}
func contains(views []*View, view *View) bool {
@@ -1485,14 +1516,17 @@
}
// Copy the URI to package ID mappings, skipping only those URIs whose
// metadata will be reloaded in future calls to load.
-copyIDs:
for k, ids := range s.ids {
+ var newIDs []packageID
for _, id := range ids {
if invalidateMetadata, ok := transitiveIDs[id]; invalidateMetadata && ok {
- continue copyIDs
+ continue
}
+ newIDs = append(newIDs, id)
}
- result.ids[k] = ids
+ if len(newIDs) != 0 {
+ result.ids[k] = newIDs
+ }
}
// Copy the set of initially loaded packages.
for id, pkgPath := range s.workspacePackages {
@@ -1767,7 +1801,7 @@
// BuildGoplsMod generates a go.mod file for all modules in the workspace. It
// bypasses any existing gopls.mod.
func BuildGoplsMod(ctx context.Context, root span.URI, s source.Snapshot) (*modfile.File, error) {
- allModules, err := findModules(ctx, root, pathExcludedByFilterFunc(s.View().Options()), 0)
+ allModules, err := findModules(root, pathExcludedByFilterFunc(s.View().Options()), 0)
if err != nil {
return nil, err
}
diff --git a/internal/lsp/cache/view.go b/internal/lsp/cache/view.go
index 64a9e7e..af00c39 100644
--- a/internal/lsp/cache/view.go
+++ b/internal/lsp/cache/view.go
@@ -236,6 +236,10 @@
return v.folder
}
+func (v *View) TempWorkspace() span.URI {
+ return v.tempWorkspace
+}
+
func (v *View) Options() *source.Options {
v.optionsMu.Lock()
defer v.optionsMu.Unlock()
@@ -456,11 +460,6 @@
go v.snapshot.generation.Destroy()
v.snapshotMu.Unlock()
v.importsState.destroy()
- if v.tempWorkspace != "" {
- if err := os.RemoveAll(v.tempWorkspace.Filename()); err != nil {
- event.Error(ctx, "removing temp workspace", err)
- }
- }
}
func (v *View) Session() *Session {
@@ -528,24 +527,30 @@
return
}
s.initializeOnce.Do(func() {
- defer func() {
- s.initializeOnce = nil
- if firstAttempt {
- close(s.view.initialWorkspaceLoad)
- }
- }()
+ s.loadWorkspace(ctx, firstAttempt)
+ })
+}
- // If we have multiple modules, we need to load them by paths.
- var scopes []interface{}
- var modDiagnostics []*source.Diagnostic
- addError := func(uri span.URI, err error) {
- modDiagnostics = append(modDiagnostics, &source.Diagnostic{
- URI: uri,
- Severity: protocol.SeverityError,
- Source: source.ListError,
- Message: err.Error(),
- })
+func (s *snapshot) loadWorkspace(ctx context.Context, firstAttempt bool) {
+ defer func() {
+ s.initializeOnce = nil
+ if firstAttempt {
+ close(s.view.initialWorkspaceLoad)
}
+ }()
+
+ // If we have multiple modules, we need to load them by paths.
+ var scopes []interface{}
+ var modDiagnostics []*source.Diagnostic
+ addError := func(uri span.URI, err error) {
+ modDiagnostics = append(modDiagnostics, &source.Diagnostic{
+ URI: uri,
+ Severity: protocol.SeverityError,
+ Source: source.ListError,
+ Message: err.Error(),
+ })
+ }
+ if len(s.workspace.getActiveModFiles()) > 0 {
for modURI := range s.workspace.getActiveModFiles() {
fh, err := s.GetFile(ctx, modURI)
if err != nil {
@@ -564,31 +569,41 @@
path := parsed.File.Module.Mod.Path
scopes = append(scopes, moduleLoadScope(path))
}
- if len(scopes) == 0 {
- scopes = append(scopes, viewLoadScope("LOAD_VIEW"))
+ } else {
+ scopes = append(scopes, viewLoadScope("LOAD_VIEW"))
+ }
+ var err error
+ if len(scopes) > 0 {
+ err = s.load(ctx, firstAttempt, append(scopes, packagePath("builtin"))...)
+ }
+ if ctx.Err() != nil {
+ return
+ }
+
+ var criticalErr *source.CriticalError
+ if err != nil {
+ event.Error(ctx, "initial workspace load failed", err)
+ extractedDiags, _ := s.extractGoCommandErrors(ctx, err.Error())
+ criticalErr = &source.CriticalError{
+ MainError: err,
+ DiagList: append(modDiagnostics, extractedDiags...),
}
- err := s.load(ctx, firstAttempt, append(scopes, packagePath("builtin"))...)
- if ctx.Err() != nil {
- return
+ } else if len(modDiagnostics) == 1 {
+ criticalErr = &source.CriticalError{
+ MainError: fmt.Errorf(modDiagnostics[0].Message),
+ DiagList: modDiagnostics,
}
- if err != nil {
- event.Error(ctx, "initial workspace load failed", err)
- extractedDiags, _ := s.extractGoCommandErrors(ctx, err.Error())
- s.initializedErr = &source.CriticalError{
- MainError: err,
- DiagList: append(modDiagnostics, extractedDiags...),
- }
- } else if len(modDiagnostics) != 0 {
- s.initializedErr = &source.CriticalError{
- MainError: fmt.Errorf("error loading module names"),
- DiagList: modDiagnostics,
- }
- } else {
- // Clear out the initialization error, in case it had been set
- // previously.
- s.initializedErr = nil
+ } else if len(modDiagnostics) > 1 {
+ criticalErr = &source.CriticalError{
+ MainError: fmt.Errorf("error loading module names"),
+ DiagList: modDiagnostics,
}
- })
+ }
+
+ // Lock the snapshot when setting the initialized error.
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ s.initializedErr = criticalErr
}
// invalidateContent invalidates the content of a Go file,
@@ -614,7 +629,9 @@
v.snapshot, workspaceChanged = oldSnapshot.clone(ctx, v.baseCtx, changes, forceReloadMetadata)
if workspaceChanged && v.tempWorkspace != "" {
snap := v.snapshot
+ release := snap.generation.Acquire(ctx)
go func() {
+ defer release()
wsdir, err := snap.getWorkspaceDir(ctx)
if err != nil {
event.Error(ctx, "getting workspace dir", err)
@@ -745,7 +762,7 @@
}
// ...else we should check if there's exactly one nested module.
- all, err := findModules(ctx, folder, excludePath, 2)
+ all, err := findModules(folder, excludePath, 2)
if err == errExhausted {
// Fall-back behavior: if we don't find any modules after searching 10000
// files, assume there are none.
diff --git a/internal/lsp/cache/workspace.go b/internal/lsp/cache/workspace.go
index 84db093..6b62d29 100644
--- a/internal/lsp/cache/workspace.go
+++ b/internal/lsp/cache/workspace.go
@@ -108,7 +108,7 @@
}
// Otherwise, in all other modes, search for all of the go.mod files in the
// workspace.
- knownModFiles, err := findModules(ctx, root, excludePath, 0)
+ knownModFiles, err := findModules(root, excludePath, 0)
if err != nil {
return nil, err
}
@@ -305,7 +305,7 @@
result.moduleSource = fileSystemWorkspace
// The parsed gopls.mod is no longer valid.
result.mod = nil
- knownModFiles, err := findModules(ctx, w.root, w.excludePath, 0)
+ knownModFiles, err := findModules(w.root, w.excludePath, 0)
if err != nil {
result.knownModFiles = nil
result.activeModFiles = nil
@@ -463,7 +463,7 @@
// searching stops once modLimit modules have been found.
//
// TODO(rfindley): consider overlays.
-func findModules(ctx context.Context, root span.URI, excludePath func(string) bool, modLimit int) (map[span.URI]struct{}, error) {
+func findModules(root span.URI, excludePath func(string) bool, modLimit int) (map[span.URI]struct{}, error) {
// Walk the view's folder to find all modules in the view.
modFiles := make(map[span.URI]struct{})
searched := 0
diff --git a/internal/lsp/cmd/capabilities_test.go b/internal/lsp/cmd/capabilities_test.go
index acd5450..70db8d7 100644
--- a/internal/lsp/cmd/capabilities_test.go
+++ b/internal/lsp/cmd/capabilities_test.go
@@ -43,7 +43,7 @@
params.Capabilities.Workspace.Configuration = true
// Send an initialize request to the server.
- c.Server = lsp.NewServer(cache.New(ctx, app.options).NewSession(ctx), c.Client)
+ c.Server = lsp.NewServer(cache.New(app.options).NewSession(ctx), c.Client)
result, err := c.Server.Initialize(ctx, params)
if err != nil {
t.Fatal(err)
diff --git a/internal/lsp/cmd/cmd.go b/internal/lsp/cmd/cmd.go
index 228a713..41c2bce 100644
--- a/internal/lsp/cmd/cmd.go
+++ b/internal/lsp/cmd/cmd.go
@@ -208,7 +208,7 @@
switch {
case app.Remote == "":
connection := newConnection(app)
- connection.Server = lsp.NewServer(cache.New(ctx, app.options).NewSession(ctx), connection.Client)
+ connection.Server = lsp.NewServer(cache.New(app.options).NewSession(ctx), connection.Client)
ctx = protocol.WithClient(ctx, connection.Client)
return connection, connection.initialize(ctx, app.options)
case strings.HasPrefix(app.Remote, "internal@"):
diff --git a/internal/lsp/cmd/serve.go b/internal/lsp/cmd/serve.go
index a3bfd91..c45790d 100644
--- a/internal/lsp/cmd/serve.go
+++ b/internal/lsp/cmd/serve.go
@@ -86,7 +86,7 @@
lsprpc.RemoteLogfile(s.RemoteLogfile),
)
} else {
- ss = lsprpc.NewStreamServer(cache.New(ctx, s.app.options), isDaemon)
+ ss = lsprpc.NewStreamServer(cache.New(s.app.options), isDaemon)
}
var network, addr string
diff --git a/internal/lsp/cmd/test/cmdtest.go b/internal/lsp/cmd/test/cmdtest.go
index b8abe6d..869d4f5 100644
--- a/internal/lsp/cmd/test/cmdtest.go
+++ b/internal/lsp/cmd/test/cmdtest.go
@@ -49,7 +49,7 @@
func NewTestServer(ctx context.Context, options func(*source.Options)) *servertest.TCPServer {
ctx = debug.WithInstance(ctx, "", "")
- cache := cache.New(ctx, options)
+ cache := cache.New(options)
ss := lsprpc.NewStreamServer(cache, false)
return servertest.NewTCPServer(ctx, ss, nil)
}
diff --git a/internal/lsp/code_action.go b/internal/lsp/code_action.go
index da6cf97..7a389b5 100644
--- a/internal/lsp/code_action.go
+++ b/internal/lsp/code_action.go
@@ -147,11 +147,14 @@
if len(d.SuggestedFixes) == 0 {
continue
}
- kind := protocol.QuickFix
- if d.Analyzer != nil && d.Analyzer.ActionKind != "" {
- kind = d.Analyzer.ActionKind
+ var isFix bool
+ for _, fix := range d.SuggestedFixes {
+ if fix.ActionKind == protocol.QuickFix || fix.ActionKind == protocol.SourceFixAll {
+ isFix = true
+ break
+ }
}
- if kind == protocol.QuickFix || kind == protocol.SourceFixAll {
+ if isFix {
fixDiags = append(fixDiags, d)
} else {
nonFixDiags = append(nonFixDiags, d)
@@ -356,25 +359,13 @@
func codeActionsForDiagnostic(ctx context.Context, snapshot source.Snapshot, sd *source.Diagnostic, pd *protocol.Diagnostic) ([]protocol.CodeAction, error) {
var actions []protocol.CodeAction
for _, fix := range sd.SuggestedFixes {
- action := protocol.CodeAction{
- Title: fix.Title,
- Kind: protocol.QuickFix,
- Edit: protocol.WorkspaceEdit{},
- Command: fix.Command,
- }
- if pd != nil {
- action.Diagnostics = []protocol.Diagnostic{*pd}
- }
- if sd.Analyzer != nil && sd.Analyzer.ActionKind != "" {
- action.Kind = sd.Analyzer.ActionKind
- }
-
+ var changes []protocol.TextDocumentEdit
for uri, edits := range fix.Edits {
fh, err := snapshot.GetVersionedFile(ctx, uri)
if err != nil {
return nil, err
}
- action.Edit.DocumentChanges = append(action.Edit.DocumentChanges, protocol.TextDocumentEdit{
+ changes = append(changes, protocol.TextDocumentEdit{
TextDocument: protocol.OptionalVersionedTextDocumentIdentifier{
Version: fh.Version(),
TextDocumentIdentifier: protocol.TextDocumentIdentifier{
@@ -384,6 +375,17 @@
Edits: edits,
})
}
+ action := protocol.CodeAction{
+ Title: fix.Title,
+ Kind: fix.ActionKind,
+ Edit: protocol.WorkspaceEdit{
+ DocumentChanges: changes,
+ },
+ Command: fix.Command,
+ }
+ if pd != nil {
+ action.Diagnostics = []protocol.Diagnostic{*pd}
+ }
actions = append(actions, action)
}
return actions, nil
diff --git a/internal/lsp/command.go b/internal/lsp/command.go
index 1960270..24fd719 100644
--- a/internal/lsp/command.go
+++ b/internal/lsp/command.go
@@ -683,3 +683,14 @@
})
return result, err
}
+
+func (c *commandHandler) WorkspaceMetadata(ctx context.Context) (command.WorkspaceMetadataResult, error) {
+ var result command.WorkspaceMetadataResult
+ for _, view := range c.s.session.Views() {
+ result.Workspaces = append(result.Workspaces, command.Workspace{
+ Name: view.Name(),
+ ModuleDir: view.TempWorkspace().Filename(),
+ })
+ }
+ return result, nil
+}
diff --git a/internal/lsp/command/command_gen.go b/internal/lsp/command/command_gen.go
index 1871c9d..9cdcb41 100644
--- a/internal/lsp/command/command_gen.go
+++ b/internal/lsp/command/command_gen.go
@@ -37,6 +37,7 @@
UpdateGoSum Command = "update_go_sum"
UpgradeDependency Command = "upgrade_dependency"
Vendor Command = "vendor"
+ WorkspaceMetadata Command = "workspace_metadata"
)
var Commands = []Command{
@@ -58,6 +59,7 @@
UpdateGoSum,
UpgradeDependency,
Vendor,
+ WorkspaceMetadata,
}
func Dispatch(ctx context.Context, params *protocol.ExecuteCommandParams, s Interface) (interface{}, error) {
@@ -172,6 +174,8 @@
return nil, err
}
return nil, s.Vendor(ctx, a0)
+ case "gopls.workspace_metadata":
+ return s.WorkspaceMetadata(ctx)
}
return nil, fmt.Errorf("unsupported command %q", params.Command)
}
@@ -391,3 +395,15 @@
Arguments: args,
}, nil
}
+
+func NewWorkspaceMetadataCommand(title string) (protocol.Command, error) {
+ args, err := MarshalArgs()
+ if err != nil {
+ return protocol.Command{}, err
+ }
+ return protocol.Command{
+ Title: title,
+ Command: "gopls.workspace_metadata",
+ Arguments: args,
+ }, nil
+}
diff --git a/internal/lsp/command/interface.go b/internal/lsp/command/interface.go
index bd5e4c2..1712327 100644
--- a/internal/lsp/command/interface.go
+++ b/internal/lsp/command/interface.go
@@ -118,6 +118,8 @@
ListKnownPackages(context.Context, URIArg) (ListKnownPackagesResult, error)
AddImport(context.Context, AddImportArgs) (AddImportResult, error)
+
+ WorkspaceMetadata(context.Context) (WorkspaceMetadataResult, error)
}
type RunTestsArgs struct {
@@ -206,3 +208,15 @@
type ListKnownPackagesResult struct {
Packages []string
}
+
+type WorkspaceMetadataArgs struct {
+}
+
+type WorkspaceMetadataResult struct {
+ Workspaces []Workspace
+}
+
+type Workspace struct {
+ Name string
+ ModuleDir string
+}
diff --git a/internal/lsp/completion_test.go b/internal/lsp/completion_test.go
index 22a377e..d496a40 100644
--- a/internal/lsp/completion_test.go
+++ b/internal/lsp/completion_test.go
@@ -20,9 +20,8 @@
opts.Matcher = source.CaseInsensitive
opts.CompleteUnimported = false
opts.InsertTextFormat = protocol.SnippetTextFormat
- if !strings.Contains(string(src.URI()), "literal") {
- opts.LiteralCompletions = false
- }
+ opts.LiteralCompletions = strings.Contains(string(src.URI()), "literal")
+ opts.ExperimentalPostfixCompletions = strings.Contains(string(src.URI()), "postfix")
})
got = tests.FilterBuiltins(src, got)
want := expected(t, test, items)
@@ -101,6 +100,7 @@
opts.Matcher = source.Fuzzy
opts.CompleteUnimported = false
opts.LiteralCompletions = true
+ opts.ExperimentalPostfixCompletions = true
})
want := expected(t, test, items)
if msg := tests.CheckCompletionOrder(want, got, true); msg != "" {
diff --git a/internal/lsp/debug/info.go b/internal/lsp/debug/info.go
index 92114cc..7013396 100644
--- a/internal/lsp/debug/info.go
+++ b/internal/lsp/debug/info.go
@@ -26,7 +26,7 @@
)
// Version is a manually-updated mechanism for tracking versions.
-const Version = "v0.6.9"
+const Version = "v0.6.10"
// ServerVersion is the format used by gopls to report its version to the
// client. This format is structured so that the client can parse it easily.
diff --git a/internal/lsp/diagnostics.go b/internal/lsp/diagnostics.go
index 6b75feb..f93e525 100644
--- a/internal/lsp/diagnostics.go
+++ b/internal/lsp/diagnostics.go
@@ -285,15 +285,25 @@
if err != nil {
event.Error(ctx, "warning: gc details", err, tag.Snapshot.Of(snapshot.ID()), tag.Package.Of(pkg.ID()))
}
- for id, diags := range gcReports {
- fh := snapshot.FindFile(id.URI)
- // Don't publish gc details for unsaved buffers, since the underlying
- // logic operates on the file on disk.
- if fh == nil || !fh.Saved() {
- continue
+ s.gcOptimizationDetailsMu.Lock()
+ _, enableGCDetails := s.gcOptimizationDetails[pkg.ID()]
+
+ // NOTE(golang/go#44826): hold the gcOptimizationDetails lock, and re-check
+ // whether gc optimization details are enabled, while storing gc_details
+ // results. This ensures that the toggling of GC details and clearing of
+ // diagnostics does not race with storing the results here.
+ if enableGCDetails {
+ for id, diags := range gcReports {
+ fh := snapshot.FindFile(id.URI)
+ // Don't publish gc details for unsaved buffers, since the underlying
+ // logic operates on the file on disk.
+ if fh == nil || !fh.Saved() {
+ continue
+ }
+ s.storeDiagnostics(snapshot, id.URI, gcDetailsSource, diags)
}
- s.storeDiagnostics(snapshot, id.URI, gcDetailsSource, diags)
}
+ s.gcOptimizationDetailsMu.Unlock()
}
}
diff --git a/internal/lsp/fake/editor.go b/internal/lsp/fake/editor.go
index 725c596..f10ea44 100644
--- a/internal/lsp/fake/editor.go
+++ b/internal/lsp/fake/editor.go
@@ -275,6 +275,8 @@
params.ProcessID = int32(os.Getpid())
}
+ params.Capabilities.TextDocument.Completion.CompletionItem.SnippetSupport = true
+
// This is a bit of a hack, since the fake editor doesn't actually support
// watching changed files that match a specific glob pattern. However, the
// editor does send didChangeWatchedFiles notifications, so set this to
@@ -1039,7 +1041,7 @@
}
// CodeAction executes a codeAction request on the server.
-func (e *Editor) CodeAction(ctx context.Context, path string, rng *protocol.Range) ([]protocol.CodeAction, error) {
+func (e *Editor) CodeAction(ctx context.Context, path string, rng *protocol.Range, diagnostics []protocol.Diagnostic) ([]protocol.CodeAction, error) {
if e.Server == nil {
return nil, nil
}
@@ -1051,6 +1053,9 @@
}
params := &protocol.CodeActionParams{
TextDocument: e.textDocumentIdentifier(path),
+ Context: protocol.CodeActionContext{
+ Diagnostics: diagnostics,
+ },
}
if rng != nil {
params.Range = *rng
@@ -1089,3 +1094,17 @@
params.TextDocument.URI = e.sandbox.Workdir.URI(path)
return e.Server.DocumentLink(ctx, params)
}
+
+func (e *Editor) DocumentHighlight(ctx context.Context, path string, pos Pos) ([]protocol.DocumentHighlight, error) {
+ if e.Server == nil {
+ return nil, nil
+ }
+ if err := e.checkBufferPosition(path, pos); err != nil {
+ return nil, err
+ }
+ params := &protocol.DocumentHighlightParams{}
+ params.TextDocument.URI = e.sandbox.Workdir.URI(path)
+ params.Position = pos.ToProtocolPosition()
+
+ return e.Server.DocumentHighlight(ctx, params)
+}
diff --git a/internal/lsp/general.go b/internal/lsp/general.go
index c87107f..6603e47 100644
--- a/internal/lsp/general.go
+++ b/internal/lsp/general.go
@@ -33,7 +33,20 @@
s.state = serverInitializing
s.stateMu.Unlock()
- s.clientPID = int(params.ProcessID)
+ // For uniqueness, use the gopls PID rather than params.ProcessID (the client
+ // pid). Some clients might start multiple gopls servers, though they
+ // probably shouldn't.
+ pid := os.Getpid()
+ s.tempDir = filepath.Join(os.TempDir(), fmt.Sprintf("gopls-%d.%s", pid, s.session.ID()))
+ err := os.Mkdir(s.tempDir, 0700)
+ if err != nil {
+ // MkdirTemp could fail due to permissions issues. This is a problem with
+ // the user's environment, but should not block gopls otherwise behaving.
+ // All usage of s.tempDir should be predicated on having a non-empty
+ // s.tempDir.
+ event.Error(ctx, "creating temp dir", err)
+ s.tempDir = ""
+ }
s.progress.supportsWorkDoneProgress = params.Capabilities.Window.WorkDoneProgress
options := s.session.Options()
@@ -197,7 +210,6 @@
}()
}
// Only one view gets to have a workspace.
- assignedWorkspace := false
var allFoldersWg sync.WaitGroup
for _, folder := range folders {
uri := span.URIFromURI(folder.URI)
@@ -206,22 +218,7 @@
continue
}
work := s.progress.start(ctx, "Setting up workspace", "Loading packages...", nil, nil)
- var workspaceURI span.URI = ""
- if !assignedWorkspace && s.clientPID != 0 {
- // For quick-and-dirty testing, set the temp workspace file to
- // $TMPDIR/gopls-<client PID>.workspace.
- //
- // This has a couple limitations:
- // + If there are multiple workspace roots, only the first one gets
- // written to this dir (and the client has no way to know precisely
- // which one).
- // + If a single client PID spawns multiple gopls sessions, they will
- // clobber eachother's temp workspace.
- wsdir := filepath.Join(os.TempDir(), fmt.Sprintf("gopls-%d.workspace", s.clientPID))
- workspaceURI = span.URIFromPath(wsdir)
- assignedWorkspace = true
- }
- snapshot, release, err := s.addView(ctx, folder.Name, uri, workspaceURI)
+ snapshot, release, err := s.addView(ctx, folder.Name, uri)
if err != nil {
viewErrors[uri] = err
work.end(fmt.Sprintf("Error loading packages: %s", err))
@@ -471,6 +468,11 @@
// drop all the active views
s.session.Shutdown(ctx)
s.state = serverShutDown
+ if s.tempDir != "" {
+ if err := os.RemoveAll(s.tempDir); err != nil {
+ event.Error(ctx, "removing temp dir", err)
+ }
+ }
}
return nil
}
diff --git a/internal/lsp/lsp_test.go b/internal/lsp/lsp_test.go
index 2b71029..621e42a 100644
--- a/internal/lsp/lsp_test.go
+++ b/internal/lsp/lsp_test.go
@@ -46,7 +46,7 @@
func testLSP(t *testing.T, datum *tests.Data) {
ctx := tests.Context(t)
- cache := cache.New(ctx, nil)
+ cache := cache.New(nil)
session := cache.NewSession(ctx)
options := source.DefaultOptions().Clone()
tests.DefaultOptions(options)
diff --git a/internal/lsp/lsprpc/lsprpc_test.go b/internal/lsp/lsprpc/lsprpc_test.go
index 1b546e7..538569b 100644
--- a/internal/lsp/lsprpc/lsprpc_test.go
+++ b/internal/lsp/lsprpc/lsprpc_test.go
@@ -57,7 +57,7 @@
client := fakeClient{logs: make(chan string, 10)}
ctx = debug.WithInstance(ctx, "", "")
- ss := NewStreamServer(cache.New(ctx, nil), false)
+ ss := NewStreamServer(cache.New(nil), false)
ss.serverForTest = server
ts := servertest.NewPipeServer(ctx, ss, nil)
defer checkClose(t, ts.Close)
@@ -114,7 +114,7 @@
func setupForwarding(ctx context.Context, t *testing.T, s protocol.Server) (direct, forwarded servertest.Connector, cleanup func()) {
t.Helper()
serveCtx := debug.WithInstance(ctx, "", "")
- ss := NewStreamServer(cache.New(serveCtx, nil), false)
+ ss := NewStreamServer(cache.New(nil), false)
ss.serverForTest = s
tsDirect := servertest.NewTCPServer(serveCtx, ss, nil)
@@ -217,7 +217,7 @@
clientCtx := debug.WithInstance(baseCtx, "", "")
serverCtx := debug.WithInstance(baseCtx, "", "")
- cache := cache.New(serverCtx, nil)
+ cache := cache.New(nil)
ss := NewStreamServer(cache, false)
tsBackend := servertest.NewTCPServer(serverCtx, ss, nil)
diff --git a/internal/lsp/mod/code_lens.go b/internal/lsp/mod/code_lens.go
index 1598ed5..d7310c7 100644
--- a/internal/lsp/mod/code_lens.go
+++ b/internal/lsp/mod/code_lens.go
@@ -50,7 +50,7 @@
upgradeTransitive, err := command.NewUpgradeDependencyCommand("Upgrade transitive dependencies", command.DependencyArgs{
URI: uri,
AddRequire: false,
- GoCmdArgs: []string{"-u", "all"},
+ GoCmdArgs: []string{"-d", "-u", "-t", "./..."},
})
if err != nil {
return nil, err
@@ -58,7 +58,7 @@
upgradeDirect, err := command.NewUpgradeDependencyCommand("Upgrade direct dependencies", command.DependencyArgs{
URI: uri,
AddRequire: false,
- GoCmdArgs: requires,
+ GoCmdArgs: append([]string{"-d"}, requires...),
})
if err != nil {
return nil, err
diff --git a/internal/lsp/mod/diagnostics.go b/internal/lsp/mod/diagnostics.go
index 0aa8caf..6495aeb 100644
--- a/internal/lsp/mod/diagnostics.go
+++ b/internal/lsp/mod/diagnostics.go
@@ -81,7 +81,7 @@
Severity: protocol.SeverityInformation,
Source: source.UpgradeNotification,
Message: fmt.Sprintf("%v can be upgraded", req.Mod.Path),
- SuggestedFixes: []source.SuggestedFix{source.SuggestedFixFromCommand(cmd)},
+ SuggestedFixes: []source.SuggestedFix{source.SuggestedFixFromCommand(cmd, protocol.QuickFix)},
})
}
diff --git a/internal/lsp/mod/mod_test.go b/internal/lsp/mod/mod_test.go
index 6ce8926..3298910 100644
--- a/internal/lsp/mod/mod_test.go
+++ b/internal/lsp/mod/mod_test.go
@@ -26,7 +26,7 @@
testenv.NeedsGo1Point(t, 14)
ctx := tests.Context(t)
- cache := cache.New(ctx, nil)
+ cache := cache.New(nil)
session := cache.NewSession(ctx)
options := source.DefaultOptions().Clone()
tests.DefaultOptions(options)
diff --git a/internal/lsp/protocol/typescript/README.md b/internal/lsp/protocol/typescript/README.md
index 456cc85..bf6dc8d 100644
--- a/internal/lsp/protocol/typescript/README.md
+++ b/internal/lsp/protocol/typescript/README.md
@@ -16,7 +16,7 @@
Code is generated and normalized by
-`tsc code.ts && node code.js && gofmt -w ts*.go`
+`tsc && node code.js && gofmt -w ts*.go`
(`code.ts` imports `util.ts`.) This generates 3 files in the current directory, `tsprotocol.go`
containing type definitions, and `tsserver.go`, `tsclient.go` containing API stubs.
diff --git a/internal/lsp/protocol/typescript/code.ts b/internal/lsp/protocol/typescript/code.ts
index bc6c643..dc5d266 100644
--- a/internal/lsp/protocol/typescript/code.ts
+++ b/internal/lsp/protocol/typescript/code.ts
@@ -23,15 +23,13 @@
import { constName, getComments, goName, loc, strKind } from './util';
var program: ts.Program;
-// eslint-disable-next-line no-unused-vars
-var checker: ts.TypeChecker;
function parse() {
// this won't complain if some fnames don't exist
program = ts.createProgram(
u.fnames,
{ target: ts.ScriptTarget.ES2018, module: ts.ModuleKind.CommonJS });
- checker = program.getTypeChecker(); // finish type checking and assignment
+ program.getTypeChecker(); // finish type checking and assignment
}
// ----- collecting information for RPCs
@@ -56,7 +54,7 @@
if (!ts.isModuleBlock(node.body)) {
throw new Error(
- `expected ModuleBody got ${strKind(node.body)} at ${loc(node)}`);
+ `expected ModuleBlock got ${strKind(node.body)} at ${loc(node)}`);
}
let x: ts.ModuleBlock = node.body;
// The story is to expect const method = 'textDocument/implementation'
@@ -103,7 +101,7 @@
ptypes.set(rpc, [nn.typeArguments[0], nn.typeArguments[1]]);
break;
default:
- throw new Error(`${nn.typeArguments.length} at ${loc(nn)}`);
+ throw new Error(`${nn.typeArguments?.length} at ${loc(nn)}`);
}
}
}
@@ -426,7 +424,7 @@
// helper function to find underlying types
// eslint-disable-next-line no-unused-vars
-function underlying(n: ts.Node, f: (n: ts.Node) => void) {
+function underlying(n: ts.Node | undefined, f: (n: ts.Node) => void) {
if (!n) return;
const ff = function (n: ts.Node) {
underlying(n, f);
@@ -543,7 +541,9 @@
}
throw new Error(`546 sameType? ${strKind(a)} ${strKind(b)}`);
}
-
+type CreateMutable<Type> = {
+ -readonly [Property in keyof Type]: Type[Property];
+};
type propMap = Map<string, ts.PropertySignature>;
function propMapSet(pm: propMap, name: string, v: ts.PropertySignature) {
if (!pm.get(name)) {
@@ -557,16 +557,16 @@
return;
}
if (ts.isTypeReferenceNode(a) && ts.isTypeLiteralNode(b)) {
- const x = mergeTypeRefLit(name, a, b);
- const fake: Object = v;
+ const x = mergeTypeRefLit(a, b);
+ const fake: CreateMutable<ts.PropertySignature> = v;
fake['type'] = x;
check(fake as ts.PropertySignature, '565');
pm.set(name, fake as ts.PropertySignature);
return;
}
if (ts.isTypeLiteralNode(a) && ts.isTypeLiteralNode(b)) {
- const x = mergeTypeLitLit(name, a, b);
- const fake: Object = v;
+ const x = mergeTypeLitLit(a, b);
+ const fake: CreateMutable<ts.PropertySignature> = v;
fake['type'] = x;
check(fake as ts.PropertySignature, '578');
pm.set(name, fake as ts.PropertySignature);
@@ -575,7 +575,8 @@
console.log(`577 ${pm.get(name).getText()}\n${v.getText()}`);
throw new Error(`578 should merge ${strKind(a)} and ${strKind(b)} for ${name}`);
}
-function addToProperties(pm: propMap, tn: ts.TypeNode, prefix = '') {
+function addToProperties(pm: propMap, tn: ts.TypeNode | undefined, prefix = '') {
+ if (!tn) return;
if (ts.isTypeReferenceNode(tn)) {
const d = seenTypes.get(goName(tn.typeName.getText()));
if (tn.typeName.getText() === 'T') return;
@@ -602,9 +603,9 @@
});
}
}
-function deepProperties(d: Data): propMap {
+function deepProperties(d: Data): propMap | undefined {
let properties: propMap = new Map<string, ts.PropertySignature>();
- if (!d.alias || !ts.isIntersectionTypeNode(d.alias)) return;
+ if (!d.alias || !ts.isIntersectionTypeNode(d.alias)) return undefined;
d.alias.types.forEach((ts) => addToProperties(properties, ts));
return properties;
}
@@ -625,19 +626,19 @@
d.properties = ts.factory.createNodeArray(v);
}
-function mergeTypeLitLit(name: string, a: ts.TypeLiteralNode, b: ts.TypeLiteralNode): ts.TypeLiteralNode {
+function mergeTypeLitLit(a: ts.TypeLiteralNode, b: ts.TypeLiteralNode): ts.TypeLiteralNode {
const v = new Map<string, ts.TypeElement>(); // avoid duplicates
a.members.forEach((te) => v.set(te.name.getText(), te));
b.members.forEach((te) => v.set(te.name.getText(), te));
const x: ts.TypeElement[] = [];
v.forEach((te) => x.push(te));
- const fake: Object = a;
- fake['members'] = x;
+ const fake: CreateMutable<ts.TypeLiteralNode> = a;
+ fake['members'] = ts.factory.createNodeArray(x);
check(fake as ts.TypeLiteralNode, '643');
return fake as ts.TypeLiteralNode;
}
-function mergeTypeRefLit(name: string, a: ts.TypeReferenceNode, b: ts.TypeLiteralNode): ts.TypeLiteralNode {
+function mergeTypeRefLit(a: ts.TypeReferenceNode, b: ts.TypeLiteralNode): ts.TypeLiteralNode {
const d = seenTypes.get(goName(a.typeName.getText()));
if (!d) throw new Error(`644 name ${a.typeName.getText()} not found`);
const typ = d.me;
@@ -649,10 +650,10 @@
v.forEach((te) => x.push(te));
const w = ts.factory.createNodeArray(x);
- const fk: Object = b;
+ const fk: CreateMutable<ts.TypeLiteralNode> = b;
fk['members'] = w;
- fk['members']['pos'] = b.members.pos;
- fk['members']['end'] = b.members.end;
+ (fk['members'] as { pos: number })['pos'] = b.members.pos;
+ (fk['members'] as { end: number })['end'] = b.members.end;
check(fk as ts.TypeLiteralNode, '662');
return fk as ts.TypeLiteralNode;
}
@@ -801,7 +802,8 @@
}
// return a go type and maybe an assocated javascript tag
-function goType(n: ts.TypeNode, nm: string): string {
+function goType(n: ts.TypeNode | undefined, nm: string): string {
+ if (!n) throw new Error(`goType undefined for ${nm}`);
if (n.getText() == 'T') return 'interface{}'; // should check it's generic
if (ts.isTypeReferenceNode(n)) {
switch (n.getText()) {
@@ -1305,8 +1307,8 @@
side.fd = fs.openSync(side.outputFile, 'w');
}
const f = function (s: string) {
- fs.writeSync(side.fd, s);
- fs.writeSync(side.fd, '\n');
+ fs.writeSync(side.fd!, s);
+ fs.writeSync(side.fd!, '\n');
};
f(u.computeHeader(false));
f(`
diff --git a/internal/lsp/protocol/typescript/tsconfig.json b/internal/lsp/protocol/typescript/tsconfig.json
new file mode 100644
index 0000000..14cfe0c
--- /dev/null
+++ b/internal/lsp/protocol/typescript/tsconfig.json
@@ -0,0 +1,29 @@
+{
+ "compilerOptions": {
+ "isolatedModules": true,
+ "moduleResolution": "node",
+ "lib":["ES2020"],
+ "sourceMap": true, // sourceMap or inlineSourceMap? and see inlineSources
+ "target": "ES5",
+
+ "noFallthroughCasesInSwitch": false, // there is one legitimate on
+ "noImplicitReturns": true,
+ "noPropertyAccessFromIndexSignature": true,
+ "noUncheckedIndexedAccess": true,
+ "noUnusedLocals": true,
+ "noUnusedParameters": false,
+ "noEmitOnError": true,
+
+ // "extendedDiagnostics": true, // for occasional amusement
+
+ // "strict": true, // too many undefineds in types, etc
+ "alwaysStrict": true,
+ "noImplicitAny": true,
+ "noImplicitThis": true,
+ "strictBindCallApply": true,
+ "strictFunctionTypes": true,
+ "strictNullChecks": false, // doesn't like arrray access, among other things.
+ //"strictPropertyInitialization": true, // needs strictNullChecks
+ },
+ "files": ["./code.ts", "./util.ts"]
+}
diff --git a/internal/lsp/protocol/typescript/util.ts b/internal/lsp/protocol/typescript/util.ts
index 09c8aae..a4f5d7e 100644
--- a/internal/lsp/protocol/typescript/util.ts
+++ b/internal/lsp/protocol/typescript/util.ts
@@ -58,7 +58,7 @@
// Produce a header for Go output files
export function computeHeader(pkgDoc: boolean): string {
let lastMod = 0;
- let lastDate: Date;
+ let lastDate = new Date();
for (const f of fnames) {
const st = fs.statSync(f);
if (st.mtimeMs > lastMod) {
@@ -90,6 +90,7 @@
export function goName(s: string): string {
let ans = s;
if (s.charAt(0) == '_') {
+ // in the end, none of these are emitted.
ans = 'Inner' + s.substring(1);
}
else { ans = s.substring(0, 1).toUpperCase() + s.substring(1); }
@@ -100,8 +101,7 @@
// Generate JSON tag for a struct field
export function JSON(n: ts.PropertySignature): string {
- const json = `\`json:"${n.name.getText()}${
- n.questionToken != undefined ? ',omitempty' : ''}"\``;
+ const json = `\`json:"${n.name.getText()}${n.questionToken !== undefined ? ',omitempty' : ''}"\``;
return json;
}
@@ -149,18 +149,19 @@
}
pra('\n');
for (const key of Object.keys(seenThings).sort()) {
- pra(`${key}: ${seenThings[key]} \n`);
+ pra(`${key}: ${seenThings.get(key)} \n`);
}
}
// Used in printing the AST
let seenThings = new Map<string, number>();
function seenAdd(x: string) {
- seenThings[x] = (seenThings[x] === undefined ? 1 : seenThings[x] + 1);
+ const u = seenThings.get(x);
+ seenThings.set(x, u === undefined ? 1 : u + 1);
}
// eslint-disable-next-line no-unused-vars
-function describe(node: ts.Node, pr: (s: string) => any) {
+function describe(node: ts.Node, pr: (_: string) => any) {
if (node === undefined) {
return;
}
@@ -191,7 +192,8 @@
// For debugging, say where an AST node is in a file
-export function loc(node: ts.Node): string {
+export function loc(node: ts.Node | undefined): string {
+ if (!node) throw new Error('loc called with undefined (cannot happen!)');
const sf = node.getSourceFile();
const start = node.getStart();
const x = sf.getLineAndCharacterOfPosition(start);
@@ -200,9 +202,9 @@
let fn = sf.fileName;
const n = fn.search(/-node./);
fn = fn.substring(n + 6);
- return `${fn} ${x.line + 1}: ${x.character + 1} (${y.line + 1}: ${
- y.character + 1})`;
+ return `${fn} ${x.line + 1}: ${x.character + 1} (${y.line + 1}: ${y.character + 1})`;
}
+
// --- various string stuff
// return a string of the kinds of the immediate descendants
@@ -217,15 +219,14 @@
// What kind of AST node is it? This would just be typescript's
// SyntaxKind[n.kind] except that the default names for some nodes
// are misleading
-export function strKind(n: ts.Node): string {
+export function strKind(n: ts.Node | undefined): string {
if (n == null || n == undefined) {
return 'null';
}
- return kindToStr(n.kind);
+ return kindToStr(n.kind);
}
-export function kindToStr(k: ts.SyntaxKind): string {
- if (k === undefined) return 'unDefined';
+function kindToStr(k: ts.SyntaxKind): string {
const x = ts.SyntaxKind[k];
// some of these have two names
switch (x) {
diff --git a/internal/lsp/semantic.go b/internal/lsp/semantic.go
index 7f168bc..fbca581 100644
--- a/internal/lsp/semantic.go
+++ b/internal/lsp/semantic.go
@@ -394,11 +394,15 @@
// nothing to map it to
case *types.Nil:
// nil is a predeclared identifier
- e.token(x.Pos(), len("nil"), tokVariable, []string{"readonly"})
+ e.token(x.Pos(), len("nil"), tokVariable, []string{"readonly", "defaultLibrary"})
case *types.PkgName:
e.token(x.Pos(), len(x.Name), tokNamespace, nil)
case *types.TypeName:
- e.token(x.Pos(), len(x.String()), tokType, nil)
+ var mods []string
+ if _, ok := y.Type().(*types.Basic); ok {
+ mods = []string{"defaultLibrary"}
+ }
+ e.token(x.Pos(), len(x.String()), tokType, mods)
case *types.Var:
e.token(x.Pos(), len(x.Name), tokVariable, nil)
default:
@@ -447,6 +451,15 @@
case *ast.InterfaceType:
return tokMember, mods
case *ast.TypeSpec:
+ // GenDecl/Typespec/FuncType/FieldList/Field/Ident
+ // (type A func(b uint64)) (err error)
+ // b and err should not be tokType, but tokVaraible
+ // and in GenDecl/TpeSpec/StructType/FieldList/Field/Ident
+ // (type A struct{b uint64})
+ fldm := e.stack[len(e.stack)-2]
+ if _, ok := fldm.(*ast.Field); ok {
+ return tokVariable, mods
+ }
return tokType, mods
}
}
diff --git a/internal/lsp/server.go b/internal/lsp/server.go
index 793ee5d..dd6d6e2 100644
--- a/internal/lsp/server.go
+++ b/internal/lsp/server.go
@@ -64,13 +64,13 @@
stateMu sync.Mutex
state serverState
-
- session source.Session
- clientPID int
-
// notifications generated before serverInitialized
notifications []*protocol.ShowMessageParams
+ session source.Session
+
+ tempDir string
+
// changedFiles tracks files for which there has been a textDocument/didChange.
changedFilesMu sync.Mutex
changedFiles map[span.URI]struct{}
diff --git a/internal/lsp/snippet/snippet_builder.go b/internal/lsp/snippet/snippet_builder.go
index d518980..f7fc5b4 100644
--- a/internal/lsp/snippet/snippet_builder.go
+++ b/internal/lsp/snippet/snippet_builder.go
@@ -46,6 +46,10 @@
b.sb.WriteString(rawSnip)
}
+func (b *Builder) Write(data []byte) (int, error) {
+ return b.sb.Write(data)
+}
+
// WritePlaceholder writes a tab stop and placeholder value to the Builder.
// The callback style allows for creating nested placeholders. To write an
// empty tab stop, provide a nil callback.
diff --git a/internal/lsp/source/api_json.go b/internal/lsp/source/api_json.go
index 8f72405..a106c61 100755
--- a/internal/lsp/source/api_json.go
+++ b/internal/lsp/source/api_json.go
@@ -222,6 +222,19 @@
Hierarchy: "ui.completion",
},
{
+ Name: "experimentalPostfixCompletions",
+ Type: "bool",
+ Doc: "experimentalPostfixCompletions enables artifical method snippets\nsuch as \"someSlice.sort!\".\n",
+ EnumKeys: EnumKeys{
+ ValueType: "",
+ Keys: nil,
+ },
+ EnumValues: nil,
+ Default: "false",
+ Status: "experimental",
+ Hierarchy: "ui.completion",
+ },
+ {
Name: "importShortcut",
Type: "enum",
Doc: "importShortcut specifies whether import statements should link to\ndocumentation or go to definitions.\n",
@@ -790,6 +803,12 @@
Doc: "Runs `go mod vendor` for a module.",
ArgDoc: "{\n\t// The file URI.\n\t\"URI\": string,\n}",
},
+ {
+ Command: "gopls.workspace_metadata",
+ Title: "",
+ Doc: "",
+ ArgDoc: "",
+ },
},
Lenses: []*LensJSON{
{
diff --git a/internal/lsp/source/completion/completion.go b/internal/lsp/source/completion/completion.go
index de6e53f..8864081 100644
--- a/internal/lsp/source/completion/completion.go
+++ b/internal/lsp/source/completion/completion.go
@@ -96,6 +96,7 @@
placeholders bool
literal bool
snippets bool
+ postfix bool
matcher source.Matcher
budget time.Duration
}
@@ -521,6 +522,7 @@
literal: opts.LiteralCompletions && opts.InsertTextFormat == protocol.SnippetTextFormat,
budget: opts.CompletionBudget,
snippets: opts.InsertTextFormat == protocol.SnippetTextFormat,
+ postfix: opts.ExperimentalPostfixCompletions,
},
// default to a matcher that always matches
matcher: prefixMatcher(""),
@@ -1104,6 +1106,9 @@
for _, cand := range candidates {
c.deepState.enqueue(cand)
}
+
+ c.addPostfixSnippetCandidates(ctx, sel)
+
return nil
}
diff --git a/internal/lsp/source/completion/format.go b/internal/lsp/source/completion/format.go
index ec67060..6d8299c 100644
--- a/internal/lsp/source/completion/format.go
+++ b/internal/lsp/source/completion/format.go
@@ -158,7 +158,7 @@
if prefix != "" {
// If we are in a selector, add an edit to place prefix before selector.
if sel := enclosingSelector(c.path, c.pos); sel != nil {
- edits, err := prependEdit(c.snapshot.FileSet(), c.mapper, sel, prefix)
+ edits, err := c.editText(sel.Pos(), sel.Pos(), prefix)
if err != nil {
return CompletionItem{}, err
}
@@ -229,7 +229,7 @@
return item, nil
}
- hover, err := source.HoverInfo(ctx, pkg, obj, decl)
+ hover, err := source.HoverInfo(ctx, c.snapshot, pkg, obj, decl)
if err != nil {
event.Error(ctx, "failed to find Hover", err, tag.URI.Of(uri))
return item, nil
diff --git a/internal/lsp/source/completion/literal.go b/internal/lsp/source/completion/literal.go
index 2c75310..0938e02 100644
--- a/internal/lsp/source/completion/literal.go
+++ b/internal/lsp/source/completion/literal.go
@@ -7,14 +7,11 @@
import (
"context"
"fmt"
- "go/ast"
- "go/token"
"go/types"
"strings"
"unicode"
"golang.org/x/tools/internal/event"
- "golang.org/x/tools/internal/lsp/diff"
"golang.org/x/tools/internal/lsp/protocol"
"golang.org/x/tools/internal/lsp/snippet"
"golang.org/x/tools/internal/lsp/source"
@@ -111,7 +108,7 @@
// If we are in a selector we must place the "&" before the selector.
// For example, "foo.B<>" must complete to "&foo.Bar{}", not
// "foo.&Bar{}".
- edits, err := prependEdit(c.snapshot.FileSet(), c.mapper, sel, "&")
+ edits, err := c.editText(sel.Pos(), sel.Pos(), "&")
if err != nil {
event.Error(ctx, "error making edit for literal pointer completion", err)
return
@@ -168,20 +165,6 @@
}
}
-// prependEdit produces text edits that preprend the specified prefix
-// to the specified node.
-func prependEdit(fset *token.FileSet, m *protocol.ColumnMapper, node ast.Node, prefix string) ([]protocol.TextEdit, error) {
- rng := source.NewMappedRange(fset, m, node.Pos(), node.Pos())
- spn, err := rng.Span()
- if err != nil {
- return nil, err
- }
- return source.ToProtocolEdits(m, []diff.TextEdit{{
- Span: spn,
- NewText: prefix,
- }})
-}
-
// literalCandidateScore is the base score for literal candidates.
// Literal candidates match the expected type so they should be high
// scoring, but we want them ranked below lexical objects of the
diff --git a/internal/lsp/source/completion/postfix_snippets.go b/internal/lsp/source/completion/postfix_snippets.go
new file mode 100644
index 0000000..2c3c6e9
--- /dev/null
+++ b/internal/lsp/source/completion/postfix_snippets.go
@@ -0,0 +1,436 @@
+// Copyright 2020 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package completion
+
+import (
+ "context"
+ "fmt"
+ "go/ast"
+ "go/token"
+ "go/types"
+ "log"
+ "reflect"
+ "strings"
+ "sync"
+ "text/template"
+
+ "golang.org/x/tools/internal/event"
+ "golang.org/x/tools/internal/imports"
+ "golang.org/x/tools/internal/lsp/protocol"
+ "golang.org/x/tools/internal/lsp/snippet"
+ "golang.org/x/tools/internal/lsp/source"
+ errors "golang.org/x/xerrors"
+)
+
+// Postfix snippets are artificial methods that allow the user to
+// compose common operations in an "argument oriented" fashion. For
+// example, instead of "sort.Slice(someSlice, ...)" a user can expand
+// "someSlice.sort!".
+
+// postfixTmpl represents a postfix snippet completion candidate.
+type postfixTmpl struct {
+ // label is the completion candidate's label presented to the user.
+ label string
+
+ // details is passed along to the client as the candidate's details.
+ details string
+
+ // body is the template text. See postfixTmplArgs for details on the
+ // facilities available to the template.
+ body string
+
+ tmpl *template.Template
+}
+
+// postfixTmplArgs are the template execution arguments available to
+// the postfix snippet templates.
+type postfixTmplArgs struct {
+ // StmtOK is true if it is valid to replace the selector with a
+ // statement. For example:
+ //
+ // func foo() {
+ // bar.sort! // statement okay
+ //
+ // someMethod(bar.sort!) // statement not okay
+ // }
+ StmtOK bool
+
+ // X is the textual SelectorExpr.X. For example, when completing
+ // "foo.bar.print!", "X" is "foo.bar".
+ X string
+
+ // Obj is the types.Object of SelectorExpr.X, if any.
+ Obj types.Object
+
+ // Type is the type of "foo.bar" in "foo.bar.print!".
+ Type types.Type
+
+ scope *types.Scope
+ snip snippet.Builder
+ importIfNeeded func(pkgPath string, scope *types.Scope) (name string, edits []protocol.TextEdit, err error)
+ edits []protocol.TextEdit
+ qf types.Qualifier
+ varNames map[string]bool
+}
+
+var postfixTmpls = []postfixTmpl{{
+ label: "sort",
+ details: "sort.Slice()",
+ body: `{{if and (eq .Kind "slice") .StmtOK -}}
+{{.Import "sort"}}.Slice({{.X}}, func({{.VarName nil "i"}}, {{.VarName nil "j"}} int) bool {
+ {{.Cursor}}
+})
+{{- end}}`,
+}, {
+ label: "last",
+ details: "s[len(s)-1]",
+ body: `{{if and (eq .Kind "slice") .Obj -}}
+{{.X}}[len({{.X}})-1]
+{{- end}}`,
+}, {
+ label: "reverse",
+ details: "reverse slice",
+ body: `{{if and (eq .Kind "slice") .StmtOK -}}
+{{$i := .VarName nil "i"}}{{$j := .VarName nil "j" -}}
+for {{$i}}, {{$j}} := 0, len({{.X}})-1; {{$i}} < {{$j}}; {{$i}}, {{$j}} = {{$i}}+1, {{$j}}-1 {
+ {{.X}}[{{$i}}], {{.X}}[{{$j}}] = {{.X}}[{{$j}}], {{.X}}[{{$i}}]
+}
+{{end}}`,
+}, {
+ label: "range",
+ details: "range over slice",
+ body: `{{if and (eq .Kind "slice") .StmtOK -}}
+for {{.VarName nil "i"}}, {{.VarName .ElemType "v"}} := range {{.X}} {
+ {{.Cursor}}
+}
+{{- end}}`,
+}, {
+ label: "append",
+ details: "append and re-assign slice",
+ body: `{{if and (eq .Kind "slice") .StmtOK .Obj -}}
+{{.X}} = append({{.X}}, {{.Cursor}})
+{{- end}}`,
+}, {
+ label: "append",
+ details: "append to slice",
+ body: `{{if and (eq .Kind "slice") (not .StmtOK) -}}
+append({{.X}}, {{.Cursor}})
+{{- end}}`,
+}, {
+ label: "copy",
+ details: "duplicate slice",
+ body: `{{if and (eq .Kind "slice") .StmtOK .Obj -}}
+{{$v := (.VarName nil (printf "%sCopy" .X))}}{{$v}} := make([]{{.TypeName .ElemType}}, len({{.X}}))
+copy({{$v}}, {{.X}})
+{{end}}`,
+}, {
+ label: "range",
+ details: "range over map",
+ body: `{{if and (eq .Kind "map") .StmtOK -}}
+for {{.VarName .KeyType "k"}}, {{.VarName .ElemType "v"}} := range {{.X}} {
+ {{.Cursor}}
+}
+{{- end}}`,
+}, {
+ label: "clear",
+ details: "clear map contents",
+ body: `{{if and (eq .Kind "map") .StmtOK -}}
+{{$k := (.VarName .KeyType "k")}}for {{$k}} := range {{.X}} {
+ delete({{.X}}, {{$k}})
+}
+{{end}}`,
+}, {
+ label: "keys",
+ details: "create slice of keys",
+ body: `{{if and (eq .Kind "map") .StmtOK -}}
+{{$keysVar := (.VarName nil "keys")}}{{$keysVar}} := make([]{{.TypeName .KeyType}}, 0, len({{.X}}))
+{{$k := (.VarName .KeyType "k")}}for {{$k}} := range {{.X}} {
+ {{$keysVar}} = append({{$keysVar}}, {{$k}})
+}
+{{end}}`,
+}, {
+ label: "var",
+ details: "assign to variables",
+ body: `{{if and (eq .Kind "tuple") .StmtOK -}}
+{{$a := .}}{{range $i, $v := .Tuple}}{{if $i}}, {{end}}{{$a.VarName $v.Type $v.Name}}{{end}} := {{.X}}
+{{- end}}`,
+}, {
+ label: "var",
+ details: "assign to variable",
+ body: `{{if and (ne .Kind "tuple") .StmtOK -}}
+{{.VarName .Type ""}} := {{.X}}
+{{- end}}`,
+}, {
+ label: "print",
+ details: "print to stdout",
+ body: `{{if and (ne .Kind "tuple") .StmtOK -}}
+{{.Import "fmt"}}.Printf("{{.EscapeQuotes .X}}: %v\n", {{.X}})
+{{- end}}`,
+}, {
+ label: "print",
+ details: "print to stdout",
+ body: `{{if and (eq .Kind "tuple") .StmtOK -}}
+{{.Import "fmt"}}.Println({{.X}})
+{{- end}}`,
+}}
+
+// Cursor indicates where the client's cursor should end up after the
+// snippet is done.
+func (a *postfixTmplArgs) Cursor() string {
+ a.snip.WriteFinalTabstop()
+ return ""
+}
+
+// Import makes sure the package corresponding to path is imported,
+// returning the identifier to use to refer to the package.
+func (a *postfixTmplArgs) Import(path string) (string, error) {
+ name, edits, err := a.importIfNeeded(path, a.scope)
+ if err != nil {
+ return "", errors.Errorf("couldn't import %q: %w", path, err)
+ }
+ a.edits = append(a.edits, edits...)
+ return name, nil
+}
+
+func (a *postfixTmplArgs) EscapeQuotes(v string) string {
+ return strings.ReplaceAll(v, `"`, `\\"`)
+}
+
+// ElemType returns the Elem() type of xType, if applicable.
+func (a *postfixTmplArgs) ElemType() types.Type {
+ if e, _ := a.Type.(interface{ Elem() types.Type }); e != nil {
+ return e.Elem()
+ }
+ return nil
+}
+
+// Kind returns the underlying kind of type, e.g. "slice", "struct",
+// etc.
+func (a *postfixTmplArgs) Kind() string {
+ t := reflect.TypeOf(a.Type.Underlying())
+ return strings.ToLower(strings.TrimPrefix(t.String(), "*types."))
+}
+
+// KeyType returns the type of X's key. KeyType panics if X is not a
+// map.
+func (a *postfixTmplArgs) KeyType() types.Type {
+ return a.Type.Underlying().(*types.Map).Key()
+}
+
+// Tuple returns the tuple result vars if X is a call expression.
+func (a *postfixTmplArgs) Tuple() []*types.Var {
+ tuple, _ := a.Type.(*types.Tuple)
+ if tuple == nil {
+ return nil
+ }
+
+ typs := make([]*types.Var, 0, tuple.Len())
+ for i := 0; i < tuple.Len(); i++ {
+ typs = append(typs, tuple.At(i))
+ }
+ return typs
+}
+
+// TypeName returns the textual representation of type t.
+func (a *postfixTmplArgs) TypeName(t types.Type) (string, error) {
+ if t == nil || t == types.Typ[types.Invalid] {
+ return "", fmt.Errorf("invalid type: %v", t)
+ }
+ return types.TypeString(t, a.qf), nil
+}
+
+// VarName returns a suitable variable name for the type t. If t
+// implements the error interface, "err" is used. If t is not a named
+// type then nonNamedDefault is used. Otherwise a name is made by
+// abbreviating the type name. If the resultant name is already in
+// scope, an integer is appended to make a unique name.
+func (a *postfixTmplArgs) VarName(t types.Type, nonNamedDefault string) string {
+ if t == nil {
+ t = types.Typ[types.Invalid]
+ }
+
+ var name string
+ if types.Implements(t, errorIntf) {
+ name = "err"
+ } else if _, isNamed := source.Deref(t).(*types.Named); !isNamed {
+ name = nonNamedDefault
+ }
+
+ if name == "" {
+ name = types.TypeString(t, func(p *types.Package) string {
+ return ""
+ })
+ name = abbreviateTypeName(name)
+ }
+
+ if dot := strings.LastIndex(name, "."); dot > -1 {
+ name = name[dot+1:]
+ }
+
+ uniqueName := name
+ for i := 2; ; i++ {
+ if s, _ := a.scope.LookupParent(uniqueName, token.NoPos); s == nil && !a.varNames[uniqueName] {
+ break
+ }
+ uniqueName = fmt.Sprintf("%s%d", name, i)
+ }
+
+ a.varNames[uniqueName] = true
+
+ return uniqueName
+}
+
+func (c *completer) addPostfixSnippetCandidates(ctx context.Context, sel *ast.SelectorExpr) {
+ if !c.opts.postfix {
+ return
+ }
+
+ initPostfixRules()
+
+ if sel == nil || sel.Sel == nil {
+ return
+ }
+
+ selType := c.pkg.GetTypesInfo().TypeOf(sel.X)
+ if selType == nil {
+ return
+ }
+
+ // Skip empty tuples since there is no value to operate on.
+ if tuple, ok := selType.Underlying().(*types.Tuple); ok && tuple == nil {
+ return
+ }
+
+ // Only replace sel with a statement if sel is already a statement.
+ var stmtOK bool
+ for i, n := range c.path {
+ if n == sel && i < len(c.path)-1 {
+ _, stmtOK = c.path[i+1].(*ast.ExprStmt)
+ break
+ }
+ }
+
+ scope := c.pkg.GetTypes().Scope().Innermost(c.pos)
+ if scope == nil {
+ return
+ }
+
+ // afterDot is the position after selector dot, e.g. "|" in
+ // "foo.|print".
+ afterDot := sel.Sel.Pos()
+
+ // We must detect dangling selectors such as:
+ //
+ // foo.<>
+ // bar
+ //
+ // and adjust afterDot so that we don't mistakenly delete the
+ // newline thinking "bar" is part of our selector.
+ tokFile := c.snapshot.FileSet().File(c.pos)
+ if startLine := tokFile.Line(sel.Pos()); startLine != tokFile.Line(afterDot) {
+ if tokFile.Line(c.pos) != startLine {
+ return
+ }
+ afterDot = c.pos
+ }
+
+ for _, rule := range postfixTmpls {
+ // When completing foo.print<>, "print" is naturally overwritten,
+ // but we need to also remove "foo." so the snippet has a clean
+ // slate.
+ edits, err := c.editText(sel.Pos(), afterDot, "")
+ if err != nil {
+ event.Error(ctx, "error calculating postfix edits", err)
+ return
+ }
+
+ tmplArgs := postfixTmplArgs{
+ X: source.FormatNode(c.snapshot.FileSet(), sel.X),
+ StmtOK: stmtOK,
+ Obj: exprObj(c.pkg.GetTypesInfo(), sel.X),
+ Type: selType,
+ qf: c.qf,
+ importIfNeeded: c.importIfNeeded,
+ scope: scope,
+ varNames: make(map[string]bool),
+ }
+
+ // Feed the template straight into the snippet builder. This
+ // allows templates to build snippets as they are executed.
+ err = rule.tmpl.Execute(&tmplArgs.snip, &tmplArgs)
+ if err != nil {
+ event.Error(ctx, "error executing postfix template", err)
+ continue
+ }
+
+ if strings.TrimSpace(tmplArgs.snip.String()) == "" {
+ continue
+ }
+
+ score := c.matcher.Score(rule.label)
+ if score <= 0 {
+ continue
+ }
+
+ c.items = append(c.items, CompletionItem{
+ Label: rule.label + "!",
+ Detail: rule.details,
+ Score: float64(score) * 0.01,
+ Kind: protocol.SnippetCompletion,
+ snippet: &tmplArgs.snip,
+ AdditionalTextEdits: append(edits, tmplArgs.edits...),
+ })
+ }
+}
+
+var postfixRulesOnce sync.Once
+
+func initPostfixRules() {
+ postfixRulesOnce.Do(func() {
+ var idx int
+ for _, rule := range postfixTmpls {
+ var err error
+ rule.tmpl, err = template.New("postfix_snippet").Parse(rule.body)
+ if err != nil {
+ log.Panicf("error parsing postfix snippet template: %v", err)
+ }
+ postfixTmpls[idx] = rule
+ idx++
+ }
+ postfixTmpls = postfixTmpls[:idx]
+ })
+}
+
+// importIfNeeded returns the package identifier and any necessary
+// edits to import package pkgPath.
+func (c *completer) importIfNeeded(pkgPath string, scope *types.Scope) (string, []protocol.TextEdit, error) {
+ defaultName := imports.ImportPathToAssumedName(pkgPath)
+
+ // Check if file already imports pkgPath.
+ for _, s := range c.file.Imports {
+ if source.ImportPath(s) == pkgPath {
+ if s.Name == nil {
+ return defaultName, nil, nil
+ }
+ if s.Name.Name != "_" {
+ return s.Name.Name, nil, nil
+ }
+ }
+ }
+
+ // Give up if the package's name is already in use by another object.
+ if _, obj := scope.LookupParent(defaultName, token.NoPos); obj != nil {
+ return "", nil, fmt.Errorf("import name %q of %q already in use", defaultName, pkgPath)
+ }
+
+ edits, err := c.importEdits(&importInfo{
+ importPath: pkgPath,
+ })
+ if err != nil {
+ return "", nil, err
+ }
+
+ return defaultName, edits, nil
+}
diff --git a/internal/lsp/source/completion/statements.go b/internal/lsp/source/completion/statements.go
index 62d3cf0..3280bb5 100644
--- a/internal/lsp/source/completion/statements.go
+++ b/internal/lsp/source/completion/statements.go
@@ -18,7 +18,7 @@
// addStatementCandidates adds full statement completion candidates
// appropriate for the current context.
func (c *completer) addStatementCandidates() {
- c.addErrCheckAndReturn()
+ c.addErrCheck()
c.addAssignAppend()
}
@@ -162,27 +162,36 @@
return bestItem
}
-// addErrCheckAndReturn offers a completion candidate of the form:
+// addErrCheck offers a completion candidate of the form:
//
// if err != nil {
// return nil, err
// }
//
+// In the case of test functions, it offers a completion candidate of the form:
+//
+// if err != nil {
+// t.Fatal(err)
+// }
+//
// The position must be in a function that returns an error, and the
// statement preceding the position must be an assignment where the
-// final LHS object is an error. addErrCheckAndReturn will synthesize
+// final LHS object is an error. addErrCheck will synthesize
// zero values as necessary to make the return statement valid.
-func (c *completer) addErrCheckAndReturn() {
+func (c *completer) addErrCheck() {
if len(c.path) < 2 || c.enclosingFunc == nil || !c.opts.placeholders {
return
}
var (
- errorType = types.Universe.Lookup("error").Type()
- result = c.enclosingFunc.sig.Results()
+ errorType = types.Universe.Lookup("error").Type()
+ result = c.enclosingFunc.sig.Results()
+ testVar = getTestVar(c.enclosingFunc, c.pkg)
+ isTest = testVar != ""
+ doesNotReturnErr = result.Len() == 0 || !types.Identical(result.At(result.Len()-1).Type(), errorType)
)
- // Make sure our enclosing function returns an error.
- if result.Len() == 0 || !types.Identical(result.At(result.Len()-1).Type(), errorType) {
+ // Make sure our enclosing function is a Test func or returns an error.
+ if !isTest && doesNotReturnErr {
return
}
@@ -205,15 +214,17 @@
}
var (
- // errText is e.g. "err" in "foo, err := bar()".
- errText = source.FormatNode(c.snapshot.FileSet(), lastAssignee)
+ // errVar is e.g. "err" in "foo, err := bar()".
+ errVar = source.FormatNode(c.snapshot.FileSet(), lastAssignee)
// Whether we need to include the "if" keyword in our candidate.
needsIf = true
)
- // "_" isn't a real object.
- if errText == "_" {
+ // If the returned error from the previous statement is "_", it is not a real object.
+ // If we don't have an error, and the function signature takes a testing.TB that is either ignored
+ // or an "_", then we also can't call t.Fatal(err).
+ if errVar == "_" {
return
}
@@ -240,7 +251,7 @@
// if er<>
// Make sure they are typing the error's name.
- if c.matcher.Score(errText) <= 0 {
+ if c.matcher.Score(errVar) <= 0 {
return
}
@@ -277,20 +288,26 @@
if needsIf {
snip.WriteText("if ")
}
- snip.WriteText(fmt.Sprintf("%s != nil {\n\treturn ", errText))
+ snip.WriteText(fmt.Sprintf("%s != nil {\n\t", errVar))
- for i := 0; i < result.Len()-1; i++ {
- snip.WriteText(formatZeroValue(result.At(i).Type(), c.qf))
- snip.WriteText(", ")
+ var label string
+ if isTest {
+ snip.WriteText(fmt.Sprintf("%s.Fatal(%s)", testVar, errVar))
+ label = fmt.Sprintf("%[1]s != nil { %[2]s.Fatal(%[1]s) }", errVar, testVar)
+ } else {
+ snip.WriteText("return ")
+ for i := 0; i < result.Len()-1; i++ {
+ snip.WriteText(formatZeroValue(result.At(i).Type(), c.qf))
+ snip.WriteText(", ")
+ }
+ snip.WritePlaceholder(func(b *snippet.Builder) {
+ b.WriteText(errVar)
+ })
+ label = fmt.Sprintf("%[1]s != nil { return %[1]s }", errVar)
}
- snip.WritePlaceholder(func(b *snippet.Builder) {
- b.WriteText(errText)
- })
-
snip.WriteText("\n}")
- label := fmt.Sprintf("%[1]s != nil { return %[1]s }", errText)
if needsIf {
label = "if " + label
}
@@ -303,3 +320,41 @@
snippet: &snip,
})
}
+
+// getTestVar checks the function signature's input parameters and returns
+// the name of the first parameter that implements "testing.TB". For example,
+// func someFunc(t *testing.T) returns the string "t", func someFunc(b *testing.B)
+// returns "b" etc. An empty string indicates that the function signature
+// does not take a testing.TB parameter or does so but is ignored such
+// as func someFunc(*testing.T).
+func getTestVar(enclosingFunc *funcInfo, pkg source.Package) string {
+ if enclosingFunc == nil || enclosingFunc.sig == nil {
+ return ""
+ }
+
+ sig := enclosingFunc.sig
+ for i := 0; i < sig.Params().Len(); i++ {
+ param := sig.Params().At(i)
+ if param.Name() == "_" {
+ continue
+ }
+ testingPkg, err := pkg.GetImport("testing")
+ if err != nil {
+ continue
+ }
+ tbObj := testingPkg.GetTypes().Scope().Lookup("TB")
+ if tbObj == nil {
+ continue
+ }
+ iface, ok := tbObj.Type().Underlying().(*types.Interface)
+ if !ok {
+ continue
+ }
+ if !types.Implements(param.Type(), iface) {
+ continue
+ }
+ return param.Name()
+ }
+
+ return ""
+}
diff --git a/internal/lsp/source/completion/util.go b/internal/lsp/source/completion/util.go
index 6733906..505c7e2 100644
--- a/internal/lsp/source/completion/util.go
+++ b/internal/lsp/source/completion/util.go
@@ -9,6 +9,8 @@
"go/token"
"go/types"
+ "golang.org/x/tools/internal/lsp/diff"
+ "golang.org/x/tools/internal/lsp/protocol"
"golang.org/x/tools/internal/lsp/source"
)
@@ -310,3 +312,15 @@
b, _ := t.Underlying().(*types.Basic)
return b != nil && b.Info()&k > 0
}
+
+func (c *completer) editText(from, to token.Pos, newText string) ([]protocol.TextEdit, error) {
+ rng := source.NewMappedRange(c.snapshot.FileSet(), c.mapper, from, to)
+ spn, err := rng.Span()
+ if err != nil {
+ return nil, err
+ }
+ return source.ToProtocolEdits(c.mapper, []diff.TextEdit{{
+ Span: spn,
+ NewText: newText,
+ }})
+}
diff --git a/internal/lsp/source/diagnostics.go b/internal/lsp/source/diagnostics.go
index 1948381..58154ca 100644
--- a/internal/lsp/source/diagnostics.go
+++ b/internal/lsp/source/diagnostics.go
@@ -12,9 +12,10 @@
)
type SuggestedFix struct {
- Title string
- Edits map[span.URI][]protocol.TextEdit
- Command *protocol.Command
+ Title string
+ Edits map[span.URI][]protocol.TextEdit
+ Command *protocol.Command
+ ActionKind protocol.CodeActionKind
}
type RelatedInformation struct {
diff --git a/internal/lsp/source/extract.go b/internal/lsp/source/extract.go
index e7faaff..854dc90 100644
--- a/internal/lsp/source/extract.go
+++ b/internal/lsp/source/extract.go
@@ -276,6 +276,10 @@
if _, ok := seenVars[v.obj]; ok {
continue
}
+ if v.obj.Name() == "_" {
+ // The blank identifier is always a local variable
+ continue
+ }
typ := analysisinternal.TypeExpr(fset, file, pkg, v.obj.Type())
if typ == nil {
return nil, fmt.Errorf("nil AST expression for type: %v", v.obj.Name())
diff --git a/internal/lsp/source/fix.go b/internal/lsp/source/fix.go
index 3918355..6a01239 100644
--- a/internal/lsp/source/fix.go
+++ b/internal/lsp/source/fix.go
@@ -42,10 +42,11 @@
ExtractFunction: extractFunction,
}
-func SuggestedFixFromCommand(cmd protocol.Command) SuggestedFix {
+func SuggestedFixFromCommand(cmd protocol.Command, kind protocol.CodeActionKind) SuggestedFix {
return SuggestedFix{
- Title: cmd.Title,
- Command: &cmd,
+ Title: cmd.Title,
+ Command: &cmd,
+ ActionKind: kind,
}
}
diff --git a/internal/lsp/source/highlight.go b/internal/lsp/source/highlight.go
index 3af3f49..7cdb484 100644
--- a/internal/lsp/source/highlight.go
+++ b/internal/lsp/source/highlight.go
@@ -22,10 +22,18 @@
ctx, done := event.Start(ctx, "source.Highlight")
defer done()
- pkg, pgf, err := GetParsedFile(ctx, snapshot, fh, WidestPackage)
+ // Don't use GetParsedFile because it uses TypecheckWorkspace, and we
+ // always want fully parsed files for highlight, regardless of whether
+ // the file belongs to a workspace package.
+ pkg, err := snapshot.PackageForFile(ctx, fh.URI(), TypecheckFull, WidestPackage)
+ if err != nil {
+ return nil, errors.Errorf("getting package for Highlight: %w", err)
+ }
+ pgf, err := pkg.File(fh.URI())
if err != nil {
return nil, errors.Errorf("getting file for Highlight: %w", err)
}
+
spn, err := pgf.Mapper.PointSpan(pos)
if err != nil {
return nil, err
diff --git a/internal/lsp/source/hover.go b/internal/lsp/source/hover.go
index 8f23d1d..e27216e 100644
--- a/internal/lsp/source/hover.go
+++ b/internal/lsp/source/hover.go
@@ -12,12 +12,14 @@
"go/constant"
"go/doc"
"go/format"
+ "go/token"
"go/types"
"strings"
"time"
"golang.org/x/tools/internal/event"
"golang.org/x/tools/internal/lsp/protocol"
+ "golang.org/x/tools/internal/span"
errors "golang.org/x/xerrors"
)
@@ -93,7 +95,7 @@
defer done()
fset := i.Snapshot.FileSet()
- h, err := HoverInfo(ctx, i.pkg, i.Declaration.obj, i.Declaration.node)
+ h, err := HoverInfo(ctx, i.Snapshot, i.pkg, i.Declaration.obj, i.Declaration.node)
if err != nil {
return nil, err
}
@@ -252,7 +254,7 @@
// HoverInfo returns a HoverInformation struct for an ast node and its type
// object.
-func HoverInfo(ctx context.Context, pkg Package, obj types.Object, node ast.Node) (*HoverInformation, error) {
+func HoverInfo(ctx context.Context, s Snapshot, pkg Package, obj types.Object, node ast.Node) (*HoverInformation, error) {
var info *HoverInformation
switch node := node.(type) {
@@ -304,6 +306,35 @@
info = &HoverInformation{source: obj, comment: node.Doc}
case *types.Builtin:
info = &HoverInformation{source: node.Type, comment: node.Doc}
+ case *types.Var:
+ // Object is a function param or the field of an anonymous struct
+ // declared with ':='. Skip the first one because only fields
+ // can have docs.
+ if isFunctionParam(obj, node) {
+ break
+ }
+
+ f := s.FileSet().File(obj.Pos())
+ if f == nil {
+ break
+ }
+
+ pgf, err := pkg.File(span.URIFromPath(f.Name()))
+ if err != nil {
+ return nil, err
+ }
+ posToField, err := s.PosToField(ctx, pgf)
+ if err != nil {
+ return nil, err
+ }
+
+ if field := posToField[obj.Pos()]; field != nil {
+ comment := field.Doc
+ if comment.Text() == "" {
+ comment = field.Comment
+ }
+ info = &HoverInformation{source: obj, comment: comment}
+ }
}
}
@@ -319,6 +350,24 @@
return info, nil
}
+// isFunctionParam returns true if the passed object is either an incoming
+// or an outgoing function param
+func isFunctionParam(obj types.Object, node *ast.FuncDecl) bool {
+ for _, f := range node.Type.Params.List {
+ if f.Pos() == obj.Pos() {
+ return true
+ }
+ }
+ if node.Type.Results != nil {
+ for _, f := range node.Type.Results.List {
+ if f.Pos() == obj.Pos() {
+ return true
+ }
+ }
+ }
+ return false
+}
+
func formatGenDecl(node *ast.GenDecl, obj types.Object, typ types.Type) (*HoverInformation, error) {
if _, ok := typ.(*types.Named); ok {
switch typ.Underlying().(type) {
@@ -370,6 +419,11 @@
fieldList = t.Methods
}
case *ast.ValueSpec:
+ // Try to extract the field list of an anonymous struct
+ if fieldList = extractFieldList(spec.Type); fieldList != nil {
+ break
+ }
+
comment := spec.Doc
if comment == nil {
comment = decl.Doc
@@ -379,20 +433,55 @@
}
return &HoverInformation{source: obj, comment: comment}
}
- // If we have a struct or interface declaration,
- // we need to match the object to the corresponding field or method.
+
if fieldList != nil {
- for i := 0; i < len(fieldList.List); i++ {
- field := fieldList.List[i]
- if field.Pos() <= obj.Pos() && obj.Pos() <= field.End() {
- if field.Doc.Text() != "" {
- return &HoverInformation{source: obj, comment: field.Doc}
- }
- return &HoverInformation{source: obj, comment: field.Comment}
+ comment := findFieldComment(obj.Pos(), fieldList)
+ return &HoverInformation{source: obj, comment: comment}
+ }
+ return &HoverInformation{source: obj, comment: decl.Doc}
+}
+
+// extractFieldList recursively tries to extract a field list.
+// If it is not found, nil is returned.
+func extractFieldList(specType ast.Expr) *ast.FieldList {
+ switch t := specType.(type) {
+ case *ast.StructType:
+ return t.Fields
+ case *ast.InterfaceType:
+ return t.Methods
+ case *ast.ArrayType:
+ return extractFieldList(t.Elt)
+ case *ast.MapType:
+ // Map value has a greater chance to be a struct
+ if fields := extractFieldList(t.Value); fields != nil {
+ return fields
+ }
+ return extractFieldList(t.Key)
+ case *ast.ChanType:
+ return extractFieldList(t.Value)
+ }
+ return nil
+}
+
+// findFieldComment visits all fields in depth-first order and returns
+// the comment of a field with passed position. If no comment is found,
+// nil is returned.
+func findFieldComment(pos token.Pos, fieldList *ast.FieldList) *ast.CommentGroup {
+ for _, field := range fieldList.List {
+ if field.Pos() == pos {
+ if field.Doc.Text() != "" {
+ return field.Doc
+ }
+ return field.Comment
+ }
+
+ if nestedFieldList := extractFieldList(field.Type); nestedFieldList != nil {
+ if c := findFieldComment(pos, nestedFieldList); c != nil {
+ return c
}
}
}
- return &HoverInformation{source: obj, comment: decl.Doc}
+ return nil
}
func FormatHover(h *HoverInformation, options *Options) (string, error) {
diff --git a/internal/lsp/source/identifier.go b/internal/lsp/source/identifier.go
index e648893..7c5e62c 100644
--- a/internal/lsp/source/identifier.go
+++ b/internal/lsp/source/identifier.go
@@ -323,6 +323,12 @@
return typ.Obj()
case *types.Pointer:
return typeToObject(typ.Elem())
+ case *types.Array:
+ return typeToObject(typ.Elem())
+ case *types.Slice:
+ return typeToObject(typ.Elem())
+ case *types.Chan:
+ return typeToObject(typ.Elem())
default:
return nil
}
diff --git a/internal/lsp/source/options.go b/internal/lsp/source/options.go
index 0f8dda1..826faa6 100644
--- a/internal/lsp/source/options.go
+++ b/internal/lsp/source/options.go
@@ -129,8 +129,9 @@
SymbolStyle: DynamicSymbols,
},
CompletionOptions: CompletionOptions{
- Matcher: Fuzzy,
- CompletionBudget: 100 * time.Millisecond,
+ Matcher: Fuzzy,
+ CompletionBudget: 100 * time.Millisecond,
+ ExperimentalPostfixCompletions: false,
},
Codelenses: map[string]bool{
string(command.Generate): true,
@@ -293,6 +294,10 @@
// Matcher sets the algorithm that is used when calculating completion
// candidates.
Matcher Matcher `status:"advanced"`
+
+ // ExperimentalPostfixCompletions enables artifical method snippets
+ // such as "someSlice.sort!".
+ ExperimentalPostfixCompletions bool `status:"experimental"`
}
type DocumentationOptions struct {
@@ -681,6 +686,7 @@
// should be enabled in enableAllExperimentMaps.
func (o *Options) enableAllExperiments() {
o.SemanticTokens = true
+ o.ExperimentalPostfixCompletions = true
}
func (o *Options) enableAllExperimentMaps() {
@@ -852,6 +858,9 @@
case "expandWorkspaceToModule":
result.setBool(&o.ExpandWorkspaceToModule)
+ case "experimentalPostfixCompletions":
+ result.setBool(&o.ExperimentalPostfixCompletions)
+
case "experimentalWorkspaceModule":
result.setBool(&o.ExperimentalWorkspaceModule)
@@ -1080,7 +1089,7 @@
return map[string]*Analyzer{
fillreturns.Analyzer.Name: {
Analyzer: fillreturns.Analyzer,
- ActionKind: protocol.SourceFixAll,
+ ActionKind: []protocol.CodeActionKind{protocol.SourceFixAll, protocol.QuickFix},
Enabled: true,
},
nonewvars.Analyzer.Name: {
@@ -1105,7 +1114,7 @@
Analyzer: fillstruct.Analyzer,
Fix: FillStruct,
Enabled: true,
- ActionKind: protocol.RefactorRewrite,
+ ActionKind: []protocol.CodeActionKind{protocol.RefactorRewrite},
},
}
}
@@ -1150,9 +1159,21 @@
unusedwrite.Analyzer.Name: {Analyzer: unusedwrite.Analyzer, Enabled: false},
// gofmt -s suite:
- simplifycompositelit.Analyzer.Name: {Analyzer: simplifycompositelit.Analyzer, Enabled: true, ActionKind: protocol.SourceFixAll},
- simplifyrange.Analyzer.Name: {Analyzer: simplifyrange.Analyzer, Enabled: true, ActionKind: protocol.SourceFixAll},
- simplifyslice.Analyzer.Name: {Analyzer: simplifyslice.Analyzer, Enabled: true, ActionKind: protocol.SourceFixAll},
+ simplifycompositelit.Analyzer.Name: {
+ Analyzer: simplifycompositelit.Analyzer,
+ Enabled: true,
+ ActionKind: []protocol.CodeActionKind{protocol.SourceFixAll, protocol.QuickFix},
+ },
+ simplifyrange.Analyzer.Name: {
+ Analyzer: simplifyrange.Analyzer,
+ Enabled: true,
+ ActionKind: []protocol.CodeActionKind{protocol.SourceFixAll, protocol.QuickFix},
+ },
+ simplifyslice.Analyzer.Name: {
+ Analyzer: simplifyslice.Analyzer,
+ Enabled: true,
+ ActionKind: []protocol.CodeActionKind{protocol.SourceFixAll, protocol.QuickFix},
+ },
}
}
diff --git a/internal/lsp/source/signature_help.go b/internal/lsp/source/signature_help.go
index 03ac4e8..90cd554 100644
--- a/internal/lsp/source/signature_help.go
+++ b/internal/lsp/source/signature_help.go
@@ -106,7 +106,7 @@
node: node,
}
decl.MappedRange = append(decl.MappedRange, rng)
- d, err := HoverInfo(ctx, pkg, decl.obj, decl.node)
+ d, err := HoverInfo(ctx, snapshot, pkg, decl.obj, decl.node)
if err != nil {
return nil, 0, err
}
diff --git a/internal/lsp/source/source_test.go b/internal/lsp/source/source_test.go
index 8064b0d..23df0c5 100644
--- a/internal/lsp/source/source_test.go
+++ b/internal/lsp/source/source_test.go
@@ -47,7 +47,7 @@
func testSource(t *testing.T, datum *tests.Data) {
ctx := tests.Context(t)
- cache := cache.New(ctx, nil)
+ cache := cache.New(nil)
session := cache.NewSession(ctx)
options := source.DefaultOptions().Clone()
tests.DefaultOptions(options)
@@ -177,9 +177,8 @@
opts.DeepCompletion = false
opts.CompleteUnimported = false
opts.InsertTextFormat = protocol.SnippetTextFormat
- if !strings.Contains(string(src.URI()), "literal") {
- opts.LiteralCompletions = false
- }
+ opts.LiteralCompletions = strings.Contains(string(src.URI()), "literal")
+ opts.ExperimentalPostfixCompletions = strings.Contains(string(src.URI()), "postfix")
})
got = tests.FilterBuiltins(src, got)
if diff := tests.DiffCompletionItems(want, got); diff != "" {
@@ -278,6 +277,7 @@
_, got := r.callCompletion(t, src, func(opts *source.Options) {
opts.DeepCompletion = true
opts.Matcher = source.Fuzzy
+ opts.ExperimentalPostfixCompletions = true
})
if msg := tests.CheckCompletionOrder(want, got, true); msg != "" {
t.Errorf("%s: %s", src, msg)
@@ -931,6 +931,7 @@
// These are pure LSP features, no source level functionality to be tested.
func (r *runner) Link(t *testing.T, uri span.URI, wantLinks []tests.Link) {}
+
func (r *runner) SuggestedFix(t *testing.T, spn span.Span, actionKinds []string, expectedActions int) {
}
func (r *runner) FunctionExtraction(t *testing.T, start span.Span, end span.Span) {}
diff --git a/internal/lsp/source/util.go b/internal/lsp/source/util.go
index c1ba082..690a781 100644
--- a/internal/lsp/source/util.go
+++ b/internal/lsp/source/util.go
@@ -350,6 +350,9 @@
return ""
}
if name, ok := imports[p]; ok {
+ if name == "." {
+ return ""
+ }
return name
}
return p.Name()
diff --git a/internal/lsp/source/view.go b/internal/lsp/source/view.go
index 9bc5eca..412866c 100644
--- a/internal/lsp/source/view.go
+++ b/internal/lsp/source/view.go
@@ -215,6 +215,10 @@
// Folder returns the folder with which this view was created.
Folder() span.URI
+ // TempWorkspace returns the folder this view uses for its temporary
+ // workspace module.
+ TempWorkspace() span.URI
+
// Shutdown closes this view, and detaches it from its session.
Shutdown(ctx context.Context)
@@ -291,8 +295,13 @@
// of the client.
// A session may have many active views at any given time.
type Session interface {
- // NewView creates a new View, returning it and its first snapshot.
- NewView(ctx context.Context, name string, folder, tempWorkspaceDir span.URI, options *Options) (View, Snapshot, func(), error)
+ // ID returns the unique identifier for this session on this server.
+ ID() string
+ // NewView creates a new View, returning it and its first snapshot. If a
+ // non-empty tempWorkspace directory is provided, the View will record a copy
+ // of its gopls workspace module in that directory, so that client tooling
+ // can execute in the same main module.
+ NewView(ctx context.Context, name string, folder, tempWorkspace span.URI, options *Options) (View, Snapshot, func(), error)
// Cache returns the cache that created this session, for debugging only.
Cache() interface{}
@@ -522,7 +531,7 @@
// ActionKind is the kind of code action this analyzer produces. If
// unspecified the type defaults to quickfix.
- ActionKind protocol.CodeActionKind
+ ActionKind []protocol.CodeActionKind
}
func (a Analyzer) IsEnabled(view View) bool {
diff --git a/internal/lsp/testdata/extract/extract_function/extract_issue_44813.go b/internal/lsp/testdata/extract/extract_function/extract_issue_44813.go
new file mode 100644
index 0000000..9713b91
--- /dev/null
+++ b/internal/lsp/testdata/extract/extract_function/extract_issue_44813.go
@@ -0,0 +1,13 @@
+package extract
+
+import "fmt"
+
+func main() {
+ x := []rune{} //@mark(exSt9, "x")
+ s := "HELLO"
+ for _, c := range s {
+ x = append(x, c)
+ } //@mark(exEn9, "}")
+ //@extractfunc(exSt9, exEn9)
+ fmt.Printf("%x\n", x)
+}
diff --git a/internal/lsp/testdata/extract/extract_function/extract_issue_44813.go.golden b/internal/lsp/testdata/extract/extract_function/extract_issue_44813.go.golden
new file mode 100644
index 0000000..8604745
--- /dev/null
+++ b/internal/lsp/testdata/extract/extract_function/extract_issue_44813.go.golden
@@ -0,0 +1,20 @@
+-- functionextraction_extract_issue_44813_6_2 --
+package extract
+
+import "fmt"
+
+func main() {
+ x := fn0() //@mark(exEn9, "}")
+ //@extractfunc(exSt9, exEn9)
+ fmt.Printf("%x\n", x)
+}
+
+func fn0() []rune {
+ x := []rune{}
+ s := "HELLO"
+ for _, c := range s {
+ x = append(x, c)
+ }
+ return x
+}
+
diff --git a/internal/lsp/testdata/godef/a/h.go b/internal/lsp/testdata/godef/a/h.go
new file mode 100644
index 0000000..efe7d4e
--- /dev/null
+++ b/internal/lsp/testdata/godef/a/h.go
@@ -0,0 +1,147 @@
+package a
+
+func _() {
+ type s struct {
+ nested struct {
+ // nested number
+ number int64 //@mark(nestedNumber, "number")
+ }
+ nested2 []struct {
+ // nested string
+ str string //@mark(nestedString, "str")
+ }
+ x struct {
+ x struct {
+ x struct {
+ x struct {
+ x struct {
+ // nested map
+ m map[string]float64 //@mark(nestedMap, "m")
+ }
+ }
+ }
+ }
+ }
+ }
+
+ var t s
+ _ = t.nested.number //@hover("number", nestedNumber)
+ _ = t.nested2[0].str //@hover("str", nestedString)
+ _ = t.x.x.x.x.x.m //@hover("m", nestedMap)
+}
+
+func _() {
+ var s struct {
+ // a field
+ a int //@mark(structA, "a")
+ // b nested struct
+ b struct { //@mark(structB, "b")
+ // c field of nested struct
+ c int //@mark(structC, "c")
+ }
+ }
+ _ = s.a //@hover("a", structA)
+ _ = s.b //@hover("b", structB)
+ _ = s.b.c //@hover("c", structC)
+
+ var arr []struct {
+ // d field
+ d int //@mark(arrD, "d")
+ // e nested struct
+ e struct { //@mark(arrE, "e")
+ // f field of nested struct
+ f int //@mark(arrF, "f")
+ }
+ }
+ _ = arr[0].d //@hover("d", arrD)
+ _ = arr[0].e //@hover("e", arrE)
+ _ = arr[0].e.f //@hover("f", arrF)
+
+ var complex []struct {
+ c <-chan map[string][]struct {
+ // h field
+ h int //@mark(complexH, "h")
+ // i nested struct
+ i struct { //@mark(complexI, "i")
+ // j field of nested struct
+ j int //@mark(complexJ, "j")
+ }
+ }
+ }
+ _ = (<-complex[0].c)["0"][0].h //@hover("h", complexH)
+ _ = (<-complex[0].c)["0"][0].i //@hover("i", complexI)
+ _ = (<-complex[0].c)["0"][0].i.j //@hover("j", complexJ)
+
+ var mapWithStructKey map[struct {
+ // X key field
+ x []string //@mark(mapStructKeyX, "x")
+ }]int
+ for k := range mapWithStructKey {
+ _ = k.x //@hover("x", mapStructKeyX)
+ }
+
+ var mapWithStructKeyAndValue map[struct {
+ // Y key field
+ y string //@mark(mapStructKeyY, "y")
+ }]struct {
+ // X value field
+ x string //@mark(mapStructValueX, "x")
+ }
+ for k, v := range mapWithStructKeyAndValue {
+ // TODO: we don't show docs for y field because both map key and value
+ // are structs. And in this case, we parse only map value
+ _ = k.y //@hover("y", mapStructKeyY)
+ _ = v.x //@hover("x", mapStructValueX)
+ }
+
+ var i []map[string]interface {
+ // open method comment
+ open() error //@mark(openMethod, "open")
+ }
+ i[0]["1"].open() //@hover("open", openMethod)
+}
+
+func _() {
+ test := struct {
+ // test description
+ desc string //@mark(testDescription, "desc")
+ }{}
+ _ = test.desc //@hover("desc", testDescription)
+
+ for _, tt := range []struct {
+ // test input
+ in map[string][]struct { //@mark(testInput, "in")
+ // test key
+ key string //@mark(testInputKey, "key")
+ // test value
+ value interface{} //@mark(testInputValue, "value")
+ }
+ result struct {
+ v <-chan struct {
+ // expected test value
+ value int //@mark(testResultValue, "value")
+ }
+ }
+ }{} {
+ _ = tt.in //@hover("in", testInput)
+ _ = tt.in["0"][0].key //@hover("key", testInputKey)
+ _ = tt.in["0"][0].value //@hover("value", testInputValue)
+
+ _ = (<-tt.result.v).value //@hover("value", testResultValue)
+ }
+}
+
+func _() {
+ getPoints := func() []struct {
+ // X coord
+ x int //@mark(returnX, "x")
+ // Y coord
+ y int //@mark(returnY, "y")
+ } {
+ return nil
+ }
+
+ r := getPoints()
+ r[0].x //@hover("x", returnX)
+ r[0].y //@hover("y", returnY)
+}
diff --git a/internal/lsp/testdata/godef/a/h.go.golden b/internal/lsp/testdata/godef/a/h.go.golden
new file mode 100644
index 0000000..71f78e1
--- /dev/null
+++ b/internal/lsp/testdata/godef/a/h.go.golden
@@ -0,0 +1,136 @@
+-- nestedNumber-hover --
+```go
+field number int64
+```
+
+nested number
+-- nestedString-hover --
+```go
+field str string
+```
+
+nested string
+-- nestedMap-hover --
+```go
+field m map[string]float64
+```
+
+nested map
+-- structA-hover --
+```go
+field a int
+```
+
+a field
+-- structB-hover --
+```go
+field b struct{c int}
+```
+
+b nested struct
+-- structC-hover --
+```go
+field c int
+```
+
+c field of nested struct
+-- arrD-hover --
+```go
+field d int
+```
+
+d field
+-- arrE-hover --
+```go
+field e struct{f int}
+```
+
+e nested struct
+-- arrF-hover --
+```go
+field f int
+```
+
+f field of nested struct
+-- complexH-hover --
+```go
+field h int
+```
+
+h field
+-- complexI-hover --
+```go
+field i struct{j int}
+```
+
+i nested struct
+-- complexJ-hover --
+```go
+field j int
+```
+
+j field of nested struct
+-- mapStructKeyX-hover --
+```go
+field x []string
+```
+
+X key field
+-- mapStructKeyY-hover --
+```go
+field y string
+```
+-- mapStructValueX-hover --
+```go
+field x string
+```
+
+X value field
+-- openMethod-hover --
+```go
+func (interface).open() error
+```
+
+open method comment
+-- testDescription-hover --
+```go
+field desc string
+```
+
+test description
+-- testInput-hover --
+```go
+field in map[string][]struct{key string; value interface{}}
+```
+
+test input
+-- testInputKey-hover --
+```go
+field key string
+```
+
+test key
+-- testInputValue-hover --
+```go
+field value interface{}
+```
+
+test value
+-- testResultValue-hover --
+```go
+field value int
+```
+
+expected test value
+-- returnX-hover --
+```go
+field x int
+```
+
+X coord
+-- returnY-hover --
+```go
+field y int
+```
+
+Y coord
\ No newline at end of file
diff --git a/internal/lsp/testdata/godef/b/h.go b/internal/lsp/testdata/godef/b/h.go
new file mode 100644
index 0000000..c2776a0
--- /dev/null
+++ b/internal/lsp/testdata/godef/b/h.go
@@ -0,0 +1,10 @@
+package b
+
+import . "golang.org/x/tools/internal/lsp/godef/a"
+
+func _() {
+ // variable of type a.A
+ var _ A //@mark(AVariable, "_"),hover("_", AVariable)
+
+ AStuff() //@hover("AStuff", AStuff)
+}
diff --git a/internal/lsp/testdata/godef/b/h.go.golden b/internal/lsp/testdata/godef/b/h.go.golden
new file mode 100644
index 0000000..85f0404
--- /dev/null
+++ b/internal/lsp/testdata/godef/b/h.go.golden
@@ -0,0 +1,12 @@
+-- AVariable-hover --
+```go
+var _ A
+```
+
+variable of type a\.A
+-- AStuff-hover --
+```go
+func AStuff()
+```
+
+[`a.AStuff` on pkg.go.dev](https://pkg.go.dev/golang.org/x/tools/internal/lsp/godef/a?utm_source=gopls#AStuff)
\ No newline at end of file
diff --git a/internal/lsp/testdata/semantic/a.go.golden b/internal/lsp/testdata/semantic/a.go.golden
index 5bb276c..b09c20d 100644
--- a/internal/lsp/testdata/semantic/a.go.golden
+++ b/internal/lsp/testdata/semantic/a.go.golden
@@ -11,12 +11,12 @@
/*⇒3,keyword,[]*/var (
/*⇒1,variable,[definition]*/a = /*⇒3,namespace,[]*/fmt./*⇒5,function,[]*/Print
- /*⇒1,variable,[definition]*/b []/*⇒6,type,[]*/string = []/*⇒6,type,[]*/string{/*⇒5,string,[]*/"foo"}
- /*⇒2,variable,[definition]*/c1 /*⇒4,keyword,[]*/chan /*⇒3,type,[]*/int
- /*⇒2,variable,[definition]*/c2 <-/*⇒4,keyword,[]*/chan /*⇒3,type,[]*/int
- /*⇒2,variable,[definition]*/c3 = /*⇒4,function,[defaultLibrary]*/make([]/*⇒4,keyword,[]*/chan<- /*⇒3,type,[]*/int)
+ /*⇒1,variable,[definition]*/b []/*⇒6,type,[defaultLibrary]*/string = []/*⇒6,type,[defaultLibrary]*/string{/*⇒5,string,[]*/"foo"}
+ /*⇒2,variable,[definition]*/c1 /*⇒4,keyword,[]*/chan /*⇒3,type,[defaultLibrary]*/int
+ /*⇒2,variable,[definition]*/c2 <-/*⇒4,keyword,[]*/chan /*⇒3,type,[defaultLibrary]*/int
+ /*⇒2,variable,[definition]*/c3 = /*⇒4,function,[defaultLibrary]*/make([]/*⇒4,keyword,[]*/chan<- /*⇒3,type,[defaultLibrary]*/int)
/*⇒1,variable,[definition]*/b = /*⇒1,type,[]*/A{/*⇒1,variable,[]*/X: /*⇒2,number,[]*/23}
- /*⇒1,variable,[definition]*/m /*⇒3,keyword,[]*/map[/*⇒4,type,[]*/bool][/*⇒1,number,[]*/3]/*⇒1,operator,[]*/*/*⇒7,type,[]*/float64
+ /*⇒1,variable,[definition]*/m /*⇒3,keyword,[]*/map[/*⇒4,type,[defaultLibrary]*/bool][/*⇒1,number,[]*/3]/*⇒1,operator,[]*/*/*⇒7,type,[defaultLibrary]*/float64
)
/*⇒5,keyword,[]*/const (
@@ -27,17 +27,17 @@
)
/*⇒4,keyword,[]*/type /*⇒1,type,[definition]*/A /*⇒6,keyword,[]*/struct {
- /*⇒1,type,[definition]*/X /*⇒3,type,[]*/int /*⇒6,comment,[]*/`foof`
+ /*⇒1,variable,[definition]*/X /*⇒3,type,[defaultLibrary]*/int /*⇒6,comment,[]*/`foof`
}
/*⇒4,keyword,[]*/type /*⇒1,type,[definition]*/B /*⇒9,keyword,[]*/interface {
/*⇒1,type,[]*/A
- /*⇒3,member,[definition]*/sad(/*⇒3,type,[]*/int) /*⇒4,type,[]*/bool
+ /*⇒3,member,[definition]*/sad(/*⇒3,type,[defaultLibrary]*/int) /*⇒4,type,[defaultLibrary]*/bool
}
-/*⇒4,keyword,[]*/type /*⇒1,type,[definition]*/F /*⇒3,type,[]*/int
+/*⇒4,keyword,[]*/type /*⇒1,type,[definition]*/F /*⇒3,type,[defaultLibrary]*/int
-/*⇒4,keyword,[]*/func (/*⇒1,variable,[]*/a /*⇒1,operator,[]*/*/*⇒1,type,[]*/A) /*⇒1,member,[definition]*/f() /*⇒4,type,[]*/bool {
- /*⇒3,keyword,[]*/var /*⇒1,variable,[definition]*/z /*⇒6,type,[]*/string
+/*⇒4,keyword,[]*/func (/*⇒1,variable,[]*/a /*⇒1,operator,[]*/*/*⇒1,type,[]*/A) /*⇒1,member,[definition]*/f() /*⇒4,type,[defaultLibrary]*/bool {
+ /*⇒3,keyword,[]*/var /*⇒1,variable,[definition]*/z /*⇒6,type,[defaultLibrary]*/string
/*⇒1,variable,[definition]*/x /*⇒2,operator,[]*/:= /*⇒5,string,[]*/"foo"
/*⇒1,variable,[]*/a(/*⇒1,variable,[definition]*/x)
/*⇒1,variable,[definition]*/y /*⇒2,operator,[]*/:= /*⇒5,string,[]*/"bar" /*⇒1,operator,[]*/+ /*⇒1,variable,[]*/x
@@ -50,7 +50,7 @@
/*⇒7,keyword,[]*/default:
}
/*⇒3,keyword,[]*/for /*⇒1,variable,[definition]*/k, /*⇒1,variable,[definition]*/v := /*⇒5,keyword,[]*/range /*⇒1,variable,[]*/m {
- /*⇒6,keyword,[]*/return (/*⇒1,operator,[]*/!/*⇒1,variable,[]*/k) /*⇒2,operator,[]*/&& /*⇒1,variable,[]*/v[/*⇒1,number,[]*/0] /*⇒2,operator,[]*/== /*⇒3,variable,[readonly]*/nil
+ /*⇒6,keyword,[]*/return (/*⇒1,operator,[]*/!/*⇒1,variable,[]*/k) /*⇒2,operator,[]*/&& /*⇒1,variable,[]*/v[/*⇒1,number,[]*/0] /*⇒2,operator,[]*/== /*⇒3,variable,[readonly defaultLibrary]*/nil
}
/*⇒2,variable,[]*/c2 /*⇒2,operator,[]*/<- /*⇒1,type,[]*/A./*⇒1,variable,[definition]*/X
/*⇒1,variable,[definition]*/w /*⇒2,operator,[]*/:= /*⇒1,variable,[]*/b[/*⇒1,number,[]*/4:]
diff --git a/internal/lsp/testdata/semantic/b.go.golden b/internal/lsp/testdata/semantic/b.go.golden
index b56bb11..906a624 100644
--- a/internal/lsp/testdata/semantic/b.go.golden
+++ b/internal/lsp/testdata/semantic/b.go.golden
@@ -6,7 +6,7 @@
/*⇒4,keyword,[]*/func /*⇒6,function,[definition]*/weirâ°€d() {
/*⇒5,keyword,[]*/const (
- /*⇒4,variable,[definition readonly]*/snil = /*⇒3,variable,[readonly]*/nil
+ /*⇒4,variable,[definition readonly]*/snil = /*⇒3,variable,[readonly defaultLibrary]*/nil
/*⇒3,variable,[definition readonly]*/nil = /*⇒4,variable,[readonly]*/true
/*⇒4,variable,[definition readonly]*/true = /*⇒5,variable,[readonly]*/false
/*⇒5,variable,[definition readonly]*/false = /*⇒4,variable,[readonly]*/snil
diff --git a/internal/lsp/testdata/snippets/postfix.go b/internal/lsp/testdata/snippets/postfix.go
new file mode 100644
index 0000000..29b4192
--- /dev/null
+++ b/internal/lsp/testdata/snippets/postfix.go
@@ -0,0 +1,27 @@
+package snippets
+
+// These tests check that postfix completions do and do not show up in
+// certain cases. Tests for the postfix completion contents are under
+// regtest.
+
+func _() {
+ /* append! */ //@item(postfixAppend, "append!", "append and re-assign slice", "snippet")
+ var foo []int
+ foo.append //@rank(" //", postfixAppend)
+
+ []int{}.append //@complete(" //")
+
+ []int{}.last //@complete(" //")
+
+ /* copy! */ //@item(postfixCopy, "copy!", "duplicate slice", "snippet")
+
+ foo.copy //@rank(" //", postfixCopy)
+
+ var s struct{ i []int }
+ s.i.copy //@rank(" //", postfixCopy)
+
+ var _ []int = s.i.copy //@complete(" //")
+
+ var blah func() []int
+ blah().append //@complete(" //")
+}
diff --git a/internal/lsp/testdata/statements/if_err_check_test.go b/internal/lsp/testdata/statements/if_err_check_test.go
new file mode 100644
index 0000000..6de5878
--- /dev/null
+++ b/internal/lsp/testdata/statements/if_err_check_test.go
@@ -0,0 +1,20 @@
+package statements
+
+import (
+ "os"
+ "testing"
+)
+
+func TestErr(t *testing.T) {
+ /* if err != nil { t.Fatal(err) } */ //@item(stmtOneIfErrTFatal, "if err != nil { t.Fatal(err) }", "", "")
+
+ _, err := os.Open("foo")
+ //@snippet("", stmtOneIfErrTFatal, "", "if err != nil {\n\tt.Fatal(err)\n\\}")
+}
+
+func BenchmarkErr(b *testing.B) {
+ /* if err != nil { b.Fatal(err) } */ //@item(stmtOneIfErrBFatal, "if err != nil { b.Fatal(err) }", "", "")
+
+ _, err := os.Open("foo")
+ //@snippet("", stmtOneIfErrBFatal, "", "if err != nil {\n\tb.Fatal(err)\n\\}")
+}
diff --git a/internal/lsp/testdata/summary.txt.golden b/internal/lsp/testdata/summary.txt.golden
index e0b6366..7b9b6ed 100644
--- a/internal/lsp/testdata/summary.txt.golden
+++ b/internal/lsp/testdata/summary.txt.golden
@@ -1,12 +1,12 @@
-- summary --
CallHierarchyCount = 2
CodeLensCount = 5
-CompletionsCount = 258
-CompletionSnippetCount = 92
+CompletionsCount = 262
+CompletionSnippetCount = 94
UnimportedCompletionsCount = 5
DeepCompletionsCount = 5
FuzzyCompletionsCount = 8
-RankedCompletionsCount = 159
+RankedCompletionsCount = 162
CaseSensitiveCompletionsCount = 4
DiagnosticsCount = 37
FoldingRangesCount = 2
@@ -14,9 +14,9 @@
ImportCount = 8
SemanticTokenCount = 3
SuggestedFixCount = 40
-FunctionExtractionCount = 12
-DefinitionsCount = 65
-TypeDefinitionsCount = 2
+FunctionExtractionCount = 13
+DefinitionsCount = 90
+TypeDefinitionsCount = 10
HighlightsCount = 69
ReferencesCount = 25
RenamesCount = 33
diff --git a/internal/lsp/testdata/typdef/typdef.go b/internal/lsp/testdata/typdef/typdef.go
new file mode 100644
index 0000000..87d5197
--- /dev/null
+++ b/internal/lsp/testdata/typdef/typdef.go
@@ -0,0 +1,38 @@
+package typdef
+
+type Struct struct { //@item(Struct, "Struct", "struct{...}", "struct")
+ Field string
+}
+
+type Int int //@item(Int, "Int", "int", "type")
+
+func _() {
+ var (
+ value Struct
+ point *Struct
+ )
+ _ = value //@typdef("value", Struct)
+ _ = point //@typdef("point", Struct)
+
+ var (
+ array [3]Struct
+ slice []Struct
+ ch chan Struct
+ complex [3]chan *[5][]Int
+ )
+ _ = array //@typdef("array", Struct)
+ _ = slice //@typdef("slice", Struct)
+ _ = ch //@typdef("ch", Struct)
+ _ = complex //@typdef("complex", Int)
+
+ var s struct {
+ x struct {
+ xx struct {
+ field1 []Struct
+ field2 []Int
+ }
+ }
+ }
+ s.x.xx.field1 //@typdef("field1", Struct)
+ s.x.xx.field2 //@typdef("field2", Int)
+}
diff --git a/internal/lsp/tests/README.md b/internal/lsp/tests/README.md
index d8ba10f..2c18675 100644
--- a/internal/lsp/tests/README.md
+++ b/internal/lsp/tests/README.md
@@ -52,7 +52,7 @@
```bash
cd /path/to/tools
-go test ./internal/lsp -v -run TestLSP/Modules/SuggestedFix/bar_11_21
+go test ./internal/lsp/... -v -run TestLSP/Modules/SuggestedFix/bar_11_21
```
## Resetting marker tests
diff --git a/internal/lsp/workspace.go b/internal/lsp/workspace.go
index 2dce905..093adc7 100644
--- a/internal/lsp/workspace.go
+++ b/internal/lsp/workspace.go
@@ -6,7 +6,12 @@
import (
"context"
+ "fmt"
+ "os"
+ "path/filepath"
+ "sync/atomic"
+ "golang.org/x/tools/internal/event"
"golang.org/x/tools/internal/lsp/protocol"
"golang.org/x/tools/internal/lsp/source"
"golang.org/x/tools/internal/span"
@@ -26,7 +31,9 @@
return s.addFolders(ctx, event.Added)
}
-func (s *Server) addView(ctx context.Context, name string, uri, tempWorkspace span.URI) (source.Snapshot, func(), error) {
+var wsIndex int64
+
+func (s *Server) addView(ctx context.Context, name string, uri span.URI) (source.Snapshot, func(), error) {
s.stateMu.Lock()
state := s.state
s.stateMu.Unlock()
@@ -37,6 +44,18 @@
if err := s.fetchConfig(ctx, name, uri, options); err != nil {
return nil, func() {}, err
}
+ // Try to assign a persistent temp directory for tracking this view's
+ // temporary workspace.
+ var tempWorkspace span.URI
+ if s.tempDir != "" {
+ index := atomic.AddInt64(&wsIndex, 1)
+ wsDir := filepath.Join(s.tempDir, fmt.Sprintf("workspace.%d", index))
+ if err := os.Mkdir(wsDir, 0700); err == nil {
+ tempWorkspace = span.URIFromPath(wsDir)
+ } else {
+ event.Error(ctx, "making workspace dir", err)
+ }
+ }
_, snapshot, release, err := s.session.NewView(ctx, name, uri, tempWorkspace, options)
return snapshot, release, err
}
diff --git a/present/caption.go b/present/caption.go
index 0fa2656..64a5268 100644
--- a/present/caption.go
+++ b/present/caption.go
@@ -18,7 +18,7 @@
func (c Caption) PresentCmd() string { return c.Cmd }
func (c Caption) TemplateName() string { return "caption" }
-func parseCaption(_ *Context, _ string, _ int, text string) (Elem, error) {
- text = strings.TrimSpace(strings.TrimPrefix(text, ".caption"))
- return Caption{text, text}, nil
+func parseCaption(_ *Context, _ string, _ int, cmd string) (Elem, error) {
+ text := strings.TrimSpace(strings.TrimPrefix(cmd, ".caption"))
+ return Caption{cmd, text}, nil
}
diff --git a/present/parse.go b/present/parse.go
index 8340559..4294ea5 100644
--- a/present/parse.go
+++ b/present/parse.go
@@ -525,6 +525,7 @@
// Command breaks text block.
// Section heading breaks text block in markdown.
if text[0] == '.' || isSpeakerNote(text) {
+ lines.back()
break
}
if strings.HasPrefix(text, `\.`) { // Backslash escapes initial period.
diff --git a/present/testdata/media.p b/present/testdata/media.p
index f11970b..ffddf9f 100644
--- a/present/testdata/media.p
+++ b/present/testdata/media.p
@@ -2,6 +2,7 @@
*
+The Gopher
.image gopher.jpg _ 100
.caption A gopher.
@@ -14,6 +15,7 @@
---
<h1>Media</h1>
<section>
+<p>The Gopher</p>
<img src="gopher.jpg" width="100" alt="">
<figcaption>A gopher.</figcaption>
<iframe src="https://golang.org/"></iframe>
