mirror of
https://github.com/golang/go
synced 2024-11-18 19:04:40 -07:00
35ba81b9fb
This change cleans up internal/lsp/source/view.go to have a more logical ordering and deletes the view.CheckPackageHandle function. Now, the only way to get a CheckPackageHandle is through a snapshot (so all of the corresponding edits). Also, renamed fuzzy tests to fuzzymatch. Noticed this weird error when debugging - I had golang.org/x/tools/internal/lsp/fuzzy in my module cache and it conflicted with the test version. Change-Id: Ib87836796a8e76e6b6ed1306c2a93e9a5db91cce Reviewed-on: https://go-review.googlesource.com/c/tools/+/208099 Run-TryBot: Rebecca Stambler <rstambler@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Heschi Kreinick <heschi@google.com>
88 lines
2.0 KiB
Go
88 lines
2.0 KiB
Go
// Copyright 2019 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package source
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import (
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"context"
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"go/ast"
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"golang.org/x/tools/go/ast/astutil"
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"golang.org/x/tools/internal/lsp/protocol"
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"golang.org/x/tools/internal/telemetry/trace"
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errors "golang.org/x/xerrors"
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)
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func Highlight(ctx context.Context, snapshot Snapshot, f File, pos protocol.Position) ([]protocol.Range, error) {
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ctx, done := trace.StartSpan(ctx, "source.Highlight")
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defer done()
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cphs, err := snapshot.PackageHandles(ctx, f)
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if err != nil {
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return nil, err
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}
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cph, err := WidestCheckPackageHandle(cphs)
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if err != nil {
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return nil, err
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}
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pkg, err := cph.Check(ctx)
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if err != nil {
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return nil, err
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}
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var ph ParseGoHandle
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for _, file := range pkg.CompiledGoFiles() {
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if file.File().Identity().URI == f.URI() {
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ph = file
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}
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}
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if ph == nil {
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return nil, errors.Errorf("no ParseGoHandle for %s", f.URI())
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}
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file, m, _, err := ph.Parse(ctx)
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if err != nil {
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return nil, err
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}
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spn, err := m.PointSpan(pos)
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if err != nil {
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return nil, err
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}
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rng, err := spn.Range(m.Converter)
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if err != nil {
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return nil, err
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}
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path, _ := astutil.PathEnclosingInterval(file, rng.Start, rng.Start)
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if len(path) == 0 {
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return nil, errors.Errorf("no enclosing position found for %v:%v", int(pos.Line), int(pos.Character))
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}
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result := []protocol.Range{}
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id, ok := path[0].(*ast.Ident)
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if !ok {
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// If the cursor is not within an identifier, return empty results.
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return result, nil
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}
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idObj := pkg.GetTypesInfo().ObjectOf(id)
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ast.Inspect(path[len(path)-1], func(node ast.Node) bool {
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n, ok := node.(*ast.Ident)
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if !ok {
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return true
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}
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if n.Name != id.Name {
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return true
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}
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if n.Obj != id.Obj {
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return true
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}
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nodeObj := pkg.GetTypesInfo().ObjectOf(n)
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if nodeObj != idObj {
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return false
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}
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if rng, err := nodeToProtocolRange(ctx, snapshot.View(), m, n); err == nil {
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result = append(result, rng)
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}
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return true
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})
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return result, nil
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}
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