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 / prepare_rename.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/prepare_rename.go b/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201028153306-37f0764111ff/internal/lsp/cmd/prepare_rename.go
new file mode 100644 (file)
index 0000000..2a2fffe
--- /dev/null
+++ b/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201028153306-37f0764111ff/internal/lsp/cmd/prepare_rename.go
@@ -0,0 +1,85 @@
+// 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"
+       "flag"
+       "fmt"
+
+       "golang.org/x/tools/internal/lsp/protocol"
+       "golang.org/x/tools/internal/span"
+       "golang.org/x/tools/internal/tool"
+       errors "golang.org/x/xerrors"
+)
+
+// prepareRename implements the prepare_rename verb for gopls.
+type prepareRename struct {
+       app *Application
+}
+
+func (r *prepareRename) Name() string      { return "prepare_rename" }
+func (r *prepareRename) Usage() string     { return "<position>" }
+func (r *prepareRename) ShortHelp() string { return "test validity of a rename operation at location" }
+func (r *prepareRename) DetailedHelp(f *flag.FlagSet) {
+       fmt.Fprint(f.Output(), `
+Example:
+
+       $ # 1-indexed location (:line:column or :#offset) of the target identifier
+       $ gopls prepare_rename helper/helper.go:8:6
+       $ gopls prepare_rename helper/helper.go:#53
+
+       gopls prepare_rename flags are:
+`)
+       f.PrintDefaults()
+}
+
+// ErrInvalidRenamePosition is returned when prepareRename is run at a position that
+// is not a candidate for renaming.
+var ErrInvalidRenamePosition = errors.New("request is not valid at the given position")
+
+func (r *prepareRename) Run(ctx context.Context, args ...string) error {
+       if len(args) != 1 {
+               return tool.CommandLineErrorf("prepare_rename expects 1 argument (file)")
+       }
+
+       conn, err := r.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
+       }
+       p := protocol.PrepareRenameParams{
+               TextDocumentPositionParams: protocol.TextDocumentPositionParams{
+                       TextDocument: protocol.TextDocumentIdentifier{URI: loc.URI},
+                       Position:     loc.Range.Start,
+               },
+       }
+       result, err := conn.PrepareRename(ctx, &p)
+       if err != nil {
+               return errors.Errorf("prepare_rename failed: %w", err)
+       }
+       if result == nil {
+               return ErrInvalidRenamePosition
+       }
+
+       l := protocol.Location{Range: *result}
+       s, err := file.mapper.Span(l)
+       if err != nil {
+               return err
+       }
+
+       fmt.Println(s)
+       return nil
+}