Giant blob of minor changes

[dotfiles/.git] / .config / coc / extensions / coc-go-data / tools / pkg / mod / golang.org / x / tools@v0.0.0-20201105173854-bc9fc8d8c4bc / internal / lsp / cmd / rename.go

diff --git a/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201105173854-bc9fc8d8c4bc/internal/lsp/cmd/rename.go b/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201105173854-bc9fc8d8c4bc/internal/lsp/cmd/rename.go
new file mode 100644 (file)
index 0000000..57cf846
--- /dev/null
+++ b/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201105173854-bc9fc8d8c4bc/internal/lsp/cmd/rename.go
@@ -0,0 +1,127 @@
+// 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"
+       "io/ioutil"
+       "os"
+       "path/filepath"
+       "sort"
+
+       "golang.org/x/tools/internal/lsp/diff"
+       "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"
+)
+
+// rename implements the rename verb for gopls.
+type rename struct {
+       Diff     bool `flag:"d" help:"display diffs instead of rewriting files"`
+       Write    bool `flag:"w" help:"write result to (source) file instead of stdout"`
+       Preserve bool `flag:"preserve" help:"preserve original files"`
+
+       app *Application
+}
+
+func (r *rename) Name() string      { return "rename" }
+func (r *rename) Usage() string     { return "<position>" }
+func (r *rename) ShortHelp() string { return "rename selected identifier" }
+func (r *rename) DetailedHelp(f *flag.FlagSet) {
+       fmt.Fprint(f.Output(), `
+Example:
+
+  $ # 1-based location (:line:column or :#position) of the thing to change
+  $ gopls rename helper/helper.go:8:6
+  $ gopls rename helper/helper.go:#53
+
+       gopls rename flags are:
+`)
+       f.PrintDefaults()
+}
+
+// Run renames the specified identifier and either;
+// - if -w is specified, updates the file(s) in place;
+// - if -d is specified, prints out unified diffs of the changes; or
+// - otherwise, prints the new versions to stdout.
+func (r *rename) Run(ctx context.Context, args ...string) error {
+       if len(args) != 2 {
+               return tool.CommandLineErrorf("definition expects 2 arguments (position, new name)")
+       }
+       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.RenameParams{
+               TextDocument: protocol.TextDocumentIdentifier{URI: loc.URI},
+               Position:     loc.Range.Start,
+               NewName:      args[1],
+       }
+       edit, err := conn.Rename(ctx, &p)
+       if err != nil {
+               return err
+       }
+       var orderedURIs []string
+       edits := map[span.URI][]protocol.TextEdit{}
+       for _, c := range edit.DocumentChanges {
+               uri := fileURI(c.TextDocument.URI)
+               edits[uri] = append(edits[uri], c.Edits...)
+               orderedURIs = append(orderedURIs, string(uri))
+       }
+       sort.Strings(orderedURIs)
+       changeCount := len(orderedURIs)
+
+       for _, u := range orderedURIs {
+               uri := span.URIFromURI(u)
+               cmdFile := conn.AddFile(ctx, uri)
+               filename := cmdFile.uri.Filename()
+
+               // convert LSP-style edits to []diff.TextEdit cuz Spans are handy
+               renameEdits, err := source.FromProtocolEdits(cmdFile.mapper, edits[uri])
+               if err != nil {
+                       return errors.Errorf("%v: %v", edits, err)
+               }
+               newContent := diff.ApplyEdits(string(cmdFile.mapper.Content), renameEdits)
+
+               switch {
+               case r.Write:
+                       fmt.Fprintln(os.Stderr, filename)
+                       if r.Preserve {
+                               if err := os.Rename(filename, filename+".orig"); err != nil {
+                                       return errors.Errorf("%v: %v", edits, err)
+                               }
+                       }
+                       ioutil.WriteFile(filename, []byte(newContent), 0644)
+               case r.Diff:
+                       diffs := diff.ToUnified(filename+".orig", filename, string(cmdFile.mapper.Content), renameEdits)
+                       fmt.Print(diffs)
+               default:
+                       if len(orderedURIs) > 1 {
+                               fmt.Printf("%s:\n", filepath.Base(filename))
+                       }
+                       fmt.Print(string(newContent))
+                       if changeCount > 1 { // if this wasn't last change, print newline
+                               fmt.Println()
+                       }
+                       changeCount -= 1
+               }
+       }
+       return nil
+}