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go/internal/lsp/rename.go
Suzy Mueller 1fa568393b internal/lsp: check for conflicts on rename
Before renaming a variable, check the package to make sure that this
renaming would not result in a conflict that could break the program.

All of the implementation is taken from "refactor/rename" with the
dependency on "go/loader" removed.

Change-Id: Ib0782ec8f247a6df1750f2c8213f69186699ce1a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/183257
Run-TryBot: Suzy Mueller <suzmue@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-06-20 19:17:50 +00:00

51 lines
1.2 KiB
Go

// 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 lsp
import (
"context"
"golang.org/x/tools/internal/lsp/protocol"
"golang.org/x/tools/internal/lsp/source"
"golang.org/x/tools/internal/span"
)
func (s *Server) rename(ctx context.Context, params *protocol.RenameParams) (*protocol.WorkspaceEdit, error) {
uri := span.NewURI(params.TextDocument.URI)
view := s.session.ViewOf(uri)
f, m, err := getGoFile(ctx, view, uri)
if err != nil {
return nil, err
}
spn, err := m.PointSpan(params.Position)
if err != nil {
return nil, err
}
rng, err := spn.Range(m.Converter)
if err != nil {
return nil, err
}
edits, err := source.Rename(ctx, view, f, rng.Start, params.NewName)
if err != nil {
return nil, err
}
changes := make(map[string][]protocol.TextEdit)
for uri, textEdits := range edits {
_, m, err := getGoFile(ctx, view, uri)
if err != nil {
return nil, err
}
protocolEdits, err := ToProtocolEdits(m, textEdits)
if err != nil {
return nil, err
}
changes[string(uri)] = protocolEdits
}
return &protocol.WorkspaceEdit{Changes: &changes}, nil
}