mirror of
https://github.com/golang/go
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b667c4c58e
This change removes the need for the ast and token fields on the *goFile object. We switch to using source.ParseGoHandles on the package, which means that we can easily access both the AST and token via the package, which is already cached. Change-Id: I5f78bbe09362f4d95eb15556617bdbd809a7a55d Reviewed-on: https://go-review.googlesource.com/c/tools/+/185878 Run-TryBot: Rebecca Stambler <rstambler@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Cottrell <iancottrell@google.com>
69 lines
1.4 KiB
Go
69 lines
1.4 KiB
Go
// Copyright 2018 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 cache
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import (
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"context"
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"go/token"
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"path/filepath"
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"strings"
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"sync"
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"golang.org/x/tools/internal/lsp/source"
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"golang.org/x/tools/internal/span"
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)
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// viewFile extends source.File with helper methods for the view package.
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type viewFile interface {
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source.File
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filename() string
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addURI(uri span.URI) int
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}
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// fileBase holds the common functionality for all files.
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// It is intended to be embedded in the file implementations
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type fileBase struct {
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uris []span.URI
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fname string
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kind source.FileKind
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view *view
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handleMu sync.Mutex
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handle source.FileHandle
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}
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func basename(filename string) string {
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return strings.ToLower(filepath.Base(filename))
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}
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func (f *fileBase) URI() span.URI {
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return f.uris[0]
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}
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func (f *fileBase) filename() string {
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return f.fname
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}
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// View returns the view associated with the file.
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func (f *fileBase) View() source.View {
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return f.view
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}
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// Content returns a handle for the contents of the file.
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func (f *fileBase) Handle(ctx context.Context) source.FileHandle {
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f.handleMu.Lock()
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defer f.handleMu.Unlock()
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if f.handle == nil {
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f.handle = f.view.Session().GetFile(f.URI())
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}
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return f.handle
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}
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func (f *fileBase) FileSet() *token.FileSet {
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return f.view.Session().Cache().FileSet()
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}
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