// 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 protocol

// This file defines constants for non-standard CodeActions and CodeLenses.

// CodeAction kinds
//
// See tsprotocol.go for LSP standard kinds, including
//
//	"quickfix"
//	"refactor"
//	"refactor.extract"
//	"refactor.inline"
//	"refactor.move"
//	"refactor.rewrite"
//	"source"
//	"source.organizeImports"
//	"source.fixAll"
//	"notebook"
const (
	GoTest CodeActionKind = "goTest"
	GoDoc  CodeActionKind = "source.doc"
)

// A CodeLensSource identifies an (algorithmic) source of code lenses.
type CodeLensSource string

// CodeLens sources
//
// These identifiers appear in the "codelenses" configuration setting,
// and in the user documentation thereof, which is generated by
// gopls/doc/generate/generate.go parsing this file.
//
// Doc comments should use GitHub Markdown.
// The first line becomes the title.
//
// (For historical reasons, each code lens source identifier typically
// matches the name of one of the command.Commands returned by it,
// but that isn't essential.)
const (
	// Toggle display of Go compiler optimization decisions
	//
	// This codelens source causes the `package` declaration of
	// each file to be annotated with a command to toggle the
	// state of the per-session variable that controls whether
	// optimization decisions from the Go compiler (formerly known
	// as "gc") should be displayed as diagnostics.
	//
	// Optimization decisions include:
	// - whether a variable escapes, and how escape is inferred;
	// - whether a nil-pointer check is implied or eliminated;
	// - whether a function can be inlined.
	//
	// TODO(adonovan): this source is off by default because the
	// annotation is annoying and because VS Code has a separate
	// "Toggle gc details" command. Replace it with a Code Action
	// ("Source action...").
	CodeLensGCDetails CodeLensSource = "gc_details"

	// Run `go generate`
	//
	// This codelens source annotates any `//go:generate` comments
	// with commands to run `go generate` in this directory, on
	// all directories recursively beneath this one.
	//
	// See [Generating code](https://go.dev/blog/generate) for
	// more details.
	CodeLensGenerate CodeLensSource = "generate"

	// Re-generate cgo declarations
	//
	// This codelens source annotates an `import "C"` declaration
	// with a command to re-run the [cgo
	// command](https://pkg.go.dev/cmd/cgo) to regenerate the
	// corresponding Go declarations.
	//
	// Use this after editing the C code in comments attached to
	// the import, or in C header files included by it.
	CodeLensRegenerateCgo CodeLensSource = "regenerate_cgo"

	// Run govulncheck
	//
	// This codelens source annotates the `module` directive in a
	// go.mod file with a command to run Govulncheck.
	//
	// [Govulncheck](https://go.dev/blog/vuln) is a static
	// analysis tool that computes the set of functions reachable
	// within your application, including dependencies;
	// queries a database of known security vulnerabilities; and
	// reports any potential problems it finds.
	CodeLensRunGovulncheck CodeLensSource = "run_govulncheck"

	// Run tests and benchmarks
	//
	// This codelens source annotates each `Test` and `Benchmark`
	// function in a `*_test.go` file with a command to run it.
	//
	// This source is off by default because VS Code has
	// a more sophisticated client-side Test Explorer.
	// See golang/go#67400 for a discussion of this feature.
	CodeLensTest CodeLensSource = "test"

	// Tidy go.mod file
	//
	// This codelens source annotates the `module` directive in a
	// go.mod file with a command to run [`go mod
	// tidy`](https://go.dev/ref/mod#go-mod-tidy), which ensures
	// that the go.mod file matches the source code in the module.
	CodeLensTidy CodeLensSource = "tidy"

	// Update dependencies
	//
	// This codelens source annotates the `module` directive in a
	// go.mod file with commands to:
	//
	// - check for available upgrades,
	// - upgrade direct dependencies, and
	// - upgrade all dependencies transitively.
	CodeLensUpgradeDependency CodeLensSource = "upgrade_dependency"

	// Update vendor directory
	//
	// This codelens source annotates the `module` directive in a
	// go.mod file with a command to run [`go mod
	// vendor`](https://go.dev/ref/mod#go-mod-vendor), which
	// creates or updates the directory named `vendor` in the
	// module root so that it contains an up-to-date copy of all
	// necessary package dependencies.
	CodeLensVendor CodeLensSource = "vendor"
)