mirror of
https://github.com/golang/go
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7927dbab1b
This moves the fileset down to the base cache, the overlays down to the session and stores the environment on the view. packages.Config is no longer part of any public API, and the config is build on demand by combining all the layers of cache. Also added some documentation to the main source pacakge interfaces. Change-Id: I058092ad2275d433864d1f58576fc55e194607a6 Reviewed-on: https://go-review.googlesource.com/c/tools/+/178017 Run-TryBot: Ian Cottrell <iancottrell@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Rebecca Stambler <rstambler@golang.org>
46 lines
894 B
Go
46 lines
894 B
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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"go/token"
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"golang.org/x/tools/go/ast/astutil"
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"golang.org/x/tools/internal/span"
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)
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func Highlight(ctx context.Context, f GoFile, pos token.Pos) []span.Span {
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file := f.GetAST(ctx)
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if file == nil {
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return nil
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}
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fset := f.FileSet()
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path, _ := astutil.PathEnclosingInterval(file, pos, pos)
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if len(path) == 0 {
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return nil
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}
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id, ok := path[0].(*ast.Ident)
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if !ok {
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return nil
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}
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var result []span.Span
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if id.Obj != nil {
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ast.Inspect(path[len(path)-1], func(n ast.Node) bool {
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if n, ok := n.(*ast.Ident); ok && n.Obj == id.Obj {
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s, err := nodeSpan(n, fset)
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if err == nil {
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result = append(result, s)
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}
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}
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return true
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})
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}
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return result
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}
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