Giant blob of minor changes

[dotfiles/.git] / .config / coc / extensions / coc-go-data / tools / pkg / mod / golang.org / x / tools@v0.0.0-20201028153306-37f0764111ff / internal / lsp / cmd / definition.go

diff --git a/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201028153306-37f0764111ff/internal/lsp/cmd/definition.go b/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201028153306-37f0764111ff/internal/lsp/cmd/definition.go
new file mode 100644 (file)
index 0000000..e15540f
--- /dev/null
+++ b/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201028153306-37f0764111ff/internal/lsp/cmd/definition.go
@@ -0,0 +1,136 @@
+// 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 cmd
+
+import (
+       "context"
+       "encoding/json"
+       "flag"
+       "fmt"
+       "os"
+       "strings"
+
+       "golang.org/x/tools/internal/lsp/protocol"
+       "golang.org/x/tools/internal/lsp/source"
+       "golang.org/x/tools/internal/span"
+       "golang.org/x/tools/internal/tool"
+       errors "golang.org/x/xerrors"
+)
+
+// A Definition is the result of a 'definition' query.
+type Definition struct {
+       Span        span.Span `json:"span"`        // span of the definition
+       Description string    `json:"description"` // description of the denoted object
+}
+
+// These constant is printed in the help, and then used in a test to verify the
+// help is still valid.
+// They refer to "Set" in "flag.FlagSet" from the DetailedHelp method below.
+const (
+       exampleLine   = 44
+       exampleColumn = 47
+       exampleOffset = 1270
+)
+
+// definition implements the definition verb for gopls.
+type definition struct {
+       app *Application
+
+       JSON              bool `flag:"json" help:"emit output in JSON format"`
+       MarkdownSupported bool `flag:"markdown" help:"support markdown in responses"`
+}
+
+func (d *definition) Name() string      { return "definition" }
+func (d *definition) Usage() string     { return "<position>" }
+func (d *definition) ShortHelp() string { return "show declaration of selected identifier" }
+func (d *definition) DetailedHelp(f *flag.FlagSet) {
+       fmt.Fprintf(f.Output(), `
+Example: show the definition of the identifier at syntax at offset %[1]v in this file (flag.FlagSet):
+
+$ gopls definition internal/lsp/cmd/definition.go:%[1]v:%[2]v
+$ gopls definition internal/lsp/cmd/definition.go:#%[3]v
+
+       gopls query definition flags are:
+`, exampleLine, exampleColumn, exampleOffset)
+       f.PrintDefaults()
+}
+
+// Run performs the definition query as specified by args and prints the
+// results to stdout.
+func (d *definition) Run(ctx context.Context, args ...string) error {
+       if len(args) != 1 {
+               return tool.CommandLineErrorf("definition expects 1 argument")
+       }
+       // Plaintext makes more sense for the command line.
+       opts := d.app.options
+       d.app.options = func(o *source.Options) {
+               if opts != nil {
+                       opts(o)
+               }
+               o.PreferredContentFormat = protocol.PlainText
+               if d.MarkdownSupported {
+                       o.PreferredContentFormat = protocol.Markdown
+               }
+       }
+       conn, err := d.app.connect(ctx)
+       if err != nil {
+               return err
+       }
+       defer conn.terminate(ctx)
+       from := span.Parse(args[0])
+       file := conn.AddFile(ctx, from.URI())
+       if file.err != nil {
+               return file.err
+       }
+       loc, err := file.mapper.Location(from)
+       if err != nil {
+               return err
+       }
+       tdpp := protocol.TextDocumentPositionParams{
+               TextDocument: protocol.TextDocumentIdentifier{URI: loc.URI},
+               Position:     loc.Range.Start,
+       }
+       p := protocol.DefinitionParams{
+               TextDocumentPositionParams: tdpp,
+       }
+       locs, err := conn.Definition(ctx, &p)
+       if err != nil {
+               return errors.Errorf("%v: %v", from, err)
+       }
+
+       if len(locs) == 0 {
+               return errors.Errorf("%v: not an identifier", from)
+       }
+       q := protocol.HoverParams{
+               TextDocumentPositionParams: tdpp,
+       }
+       hover, err := conn.Hover(ctx, &q)
+       if err != nil {
+               return errors.Errorf("%v: %v", from, err)
+       }
+       if hover == nil {
+               return errors.Errorf("%v: not an identifier", from)
+       }
+       file = conn.AddFile(ctx, fileURI(locs[0].URI))
+       if file.err != nil {
+               return errors.Errorf("%v: %v", from, file.err)
+       }
+       definition, err := file.mapper.Span(locs[0])
+       if err != nil {
+               return errors.Errorf("%v: %v", from, err)
+       }
+       description := strings.TrimSpace(hover.Contents.Value)
+       result := &Definition{
+               Span:        definition,
+               Description: description,
+       }
+       if d.JSON {
+               enc := json.NewEncoder(os.Stdout)
+               enc.SetIndent("", "\t")
+               return enc.Encode(result)
+       }
+       fmt.Printf("%v: defined here as %s", result.Span, result.Description)
+       return nil
+}