mirror of
https://github.com/golang/go
synced 2024-11-18 13:24:39 -07:00
b844739462
If the analysis scope is not set, inspect all packages that depend on the query package. Fixes issue 13457 Change-Id: I08791d8a0a752470891ee93e65e664d0408525c5 Reviewed-on: https://go-review.googlesource.com/17342 Reviewed-by: Robert Griesemer <gri@golang.org>
77 lines
1.7 KiB
Go
77 lines
1.7 KiB
Go
// Copyright 2013 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 oracle
|
|
|
|
import (
|
|
"fmt"
|
|
"go/ast"
|
|
"go/token"
|
|
|
|
"golang.org/x/tools/go/loader"
|
|
"golang.org/x/tools/go/types"
|
|
"golang.org/x/tools/oracle/serial"
|
|
)
|
|
|
|
// definition reports the location of the definition of an identifier.
|
|
//
|
|
// TODO(adonovan): opt: for intra-file references, the parser's
|
|
// resolution might be enough; we should start with that.
|
|
//
|
|
func definition(q *Query) error {
|
|
lconf := loader.Config{Build: q.Build}
|
|
allowErrors(&lconf)
|
|
|
|
if _, err := importQueryPackage(q.Pos, &lconf); err != nil {
|
|
return err
|
|
}
|
|
|
|
// Load/parse/type-check the program.
|
|
lprog, err := lconf.Load()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
q.Fset = lprog.Fset
|
|
|
|
qpos, err := parseQueryPos(lprog, q.Pos, false)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
id, _ := qpos.path[0].(*ast.Ident)
|
|
if id == nil {
|
|
return fmt.Errorf("no identifier here")
|
|
}
|
|
|
|
obj := qpos.info.ObjectOf(id)
|
|
if obj == nil {
|
|
// Happens for y in "switch y := x.(type)",
|
|
// and the package declaration,
|
|
// but I think that's all.
|
|
return fmt.Errorf("no object for identifier")
|
|
}
|
|
|
|
q.result = &definitionResult{qpos, obj}
|
|
return nil
|
|
}
|
|
|
|
type definitionResult struct {
|
|
qpos *queryPos
|
|
obj types.Object // object it denotes
|
|
}
|
|
|
|
func (r *definitionResult) display(printf printfFunc) {
|
|
printf(r.obj, "defined here as %s", r.qpos.objectString(r.obj))
|
|
}
|
|
|
|
func (r *definitionResult) toSerial(res *serial.Result, fset *token.FileSet) {
|
|
definition := &serial.Definition{
|
|
Desc: r.obj.String(),
|
|
}
|
|
if pos := r.obj.Pos(); pos != token.NoPos { // Package objects have no Pos()
|
|
definition.ObjPos = fset.Position(pos).String()
|
|
}
|
|
res.Definition = definition
|
|
}
|