internal/lsp: Check if user's editor support rename operation
Change-Id: Iadda768e93eda1d53fa00a5ff8a28013a575ef57
Reviewed-on: https://go-review.googlesource.com/c/tools/+/419774
Run-TryBot: Dylan Le <dungtuanle@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
gopls-CI: kokoro <noreply+kokoro@google.com>
diff --git a/internal/lsp/source/rename.go b/internal/lsp/source/rename.go
index 503422a..b6f0e65 100644
--- a/internal/lsp/source/rename.go
+++ b/internal/lsp/source/rename.go
@@ -49,6 +49,29 @@
// the prepare fails. Probably we could eliminate the redundancy in returning
// two errors, but for now this is done defensively.
func PrepareRename(ctx context.Context, snapshot Snapshot, f FileHandle, pp protocol.Position) (_ *PrepareItem, usererr, err error) {
+ fileRenameSupported := false
+ for _, op := range snapshot.View().Options().SupportedResourceOperations {
+ if op == protocol.Rename {
+ fileRenameSupported = true
+ break
+ }
+ }
+
+ // Find position of the package name declaration
+ pgf, err := snapshot.ParseGo(ctx, f, ParseFull)
+ if err != nil {
+ return nil, err, err
+ }
+ inPackageName, err := isInPackageName(ctx, snapshot, f, pgf, pp)
+ if err != nil {
+ return nil, err, err
+ }
+
+ if inPackageName && !fileRenameSupported {
+ err := errors.New("can't rename packages: LSP client does not support file renaming")
+ return nil, err, err
+ }
+
ctx, done := event.Start(ctx, "source.PrepareRename")
defer done()
