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go/internal/lsp/cache/builtin.go
Rebecca Stambler d270ebf96e internal/lsp/cache: move overlay and debug handling into separate files
This change has no code modifications. Just move the handling for
overlays and debugging into separate files to make them easier to find.
Also, add some missing copyrights.

Change-Id: I7256f704c017457fa3418818d03f89f061af6fc9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/211757
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-12-18 19:17:43 +00:00

63 lines
1.5 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 cache
import (
"context"
"go/ast"
"golang.org/x/tools/go/packages"
"golang.org/x/tools/internal/lsp/source"
"golang.org/x/tools/internal/span"
)
type builtinPkg struct {
pkg *ast.Package
files []source.ParseGoHandle
}
func (b *builtinPkg) Lookup(name string) *ast.Object {
if b == nil || b.pkg == nil || b.pkg.Scope == nil {
return nil
}
return b.pkg.Scope.Lookup(name)
}
func (b *builtinPkg) CompiledGoFiles() []source.ParseGoHandle {
return b.files
}
// buildBuiltinPkg builds the view's builtin package.
// It assumes that the view is not active yet,
// i.e. it has not been added to the session's list of views.
func (v *view) buildBuiltinPackage(ctx context.Context) error {
cfg := v.Config(ctx)
pkgs, err := packages.Load(cfg, "builtin")
if err != nil {
return err
}
if len(pkgs) != 1 {
return err
}
pkg := pkgs[0]
files := make(map[string]*ast.File)
for _, filename := range pkg.GoFiles {
fh := v.session.GetFile(span.FileURI(filename), source.Go)
ph := v.session.cache.ParseGoHandle(fh, source.ParseFull)
v.builtin.files = append(v.builtin.files, ph)
file, _, _, err := ph.Parse(ctx)
if err != nil {
return err
}
files[filename] = file
v.ignoredURIsMu.Lock()
v.ignoredURIs[span.NewURI(filename)] = struct{}{}
v.ignoredURIsMu.Unlock()
}
v.builtin.pkg, err = ast.NewPackage(cfg.Fset, files, nil, nil)
return err
}