| // 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 cache |
| |
| import ( |
| "go/ast" |
| "go/types" |
| |
| "golang.org/x/mod/module" |
| "golang.org/x/tools/internal/lsp/source" |
| "golang.org/x/tools/internal/span" |
| errors "golang.org/x/xerrors" |
| ) |
| |
| // pkg contains the type information needed by the source package. |
| type pkg struct { |
| m *metadata |
| mode source.ParseMode |
| goFiles []*source.ParsedGoFile |
| compiledGoFiles []*source.ParsedGoFile |
| diagnostics []*source.Diagnostic |
| imports map[packagePath]*pkg |
| version *module.Version |
| typeErrors []types.Error |
| types *types.Package |
| typesInfo *types.Info |
| typesSizes types.Sizes |
| hasListOrParseErrors bool |
| hasTypeErrors bool |
| } |
| |
| // Declare explicit types for package paths, names, and IDs to ensure that we |
| // never use an ID where a path belongs, and vice versa. If we confused these, |
| // it would result in confusing errors because package IDs often look like |
| // package paths. |
| type ( |
| packageID string |
| packagePath string |
| packageName string |
| ) |
| |
| // Declare explicit types for files and directories to distinguish between the two. |
| type ( |
| fileURI span.URI |
| moduleLoadScope string |
| viewLoadScope span.URI |
| ) |
| |
| func (p *pkg) ID() string { |
| return string(p.m.id) |
| } |
| |
| func (p *pkg) Name() string { |
| return string(p.m.name) |
| } |
| |
| func (p *pkg) PkgPath() string { |
| return string(p.m.pkgPath) |
| } |
| |
| func (p *pkg) CompiledGoFiles() []*source.ParsedGoFile { |
| return p.compiledGoFiles |
| } |
| |
| func (p *pkg) File(uri span.URI) (*source.ParsedGoFile, error) { |
| for _, cgf := range p.compiledGoFiles { |
| if cgf.URI == uri { |
| return cgf, nil |
| } |
| } |
| for _, gf := range p.goFiles { |
| if gf.URI == uri { |
| return gf, nil |
| } |
| } |
| return nil, errors.Errorf("no parsed file for %s in %v", uri, p.m.id) |
| } |
| |
| func (p *pkg) GetSyntax() []*ast.File { |
| var syntax []*ast.File |
| for _, pgf := range p.compiledGoFiles { |
| syntax = append(syntax, pgf.File) |
| } |
| return syntax |
| } |
| |
| func (p *pkg) GetTypes() *types.Package { |
| return p.types |
| } |
| |
| func (p *pkg) GetTypesInfo() *types.Info { |
| return p.typesInfo |
| } |
| |
| func (p *pkg) GetTypesSizes() types.Sizes { |
| return p.typesSizes |
| } |
| |
| func (p *pkg) IsIllTyped() bool { |
| return p.types == nil || p.typesInfo == nil || p.typesSizes == nil |
| } |
| |
| func (p *pkg) ForTest() string { |
| return string(p.m.forTest) |
| } |
| |
| func (p *pkg) GetImport(pkgPath string) (source.Package, error) { |
| if imp := p.imports[packagePath(pkgPath)]; imp != nil { |
| return imp, nil |
| } |
| // Don't return a nil pointer because that still satisfies the interface. |
| return nil, errors.Errorf("no imported package for %s", pkgPath) |
| } |
| |
| func (p *pkg) MissingDependencies() []string { |
| // We don't invalidate metadata for import deletions, so check the package |
| // imports via the *types.Package. Only use metadata if p.types is nil. |
| if p.types == nil { |
| var md []string |
| for i := range p.m.missingDeps { |
| md = append(md, string(i)) |
| } |
| return md |
| } |
| var md []string |
| for _, pkg := range p.types.Imports() { |
| if _, ok := p.m.missingDeps[packagePath(pkg.Path())]; ok { |
| md = append(md, pkg.Path()) |
| } |
| } |
| return md |
| } |
| |
| func (p *pkg) Imports() []source.Package { |
| var result []source.Package |
| for _, imp := range p.imports { |
| result = append(result, imp) |
| } |
| return result |
| } |
| |
| func (p *pkg) Version() *module.Version { |
| return p.version |
| } |
| |
| func (p *pkg) HasListOrParseErrors() bool { |
| return p.hasListOrParseErrors |
| } |
| |
| func (p *pkg) HasTypeErrors() bool { |
| return p.hasTypeErrors |
| } |