1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
// 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 checker_test
import (
"fmt"
"go/ast"
"io/ioutil"
"path/filepath"
"testing"
"golang.org/x/tools/go/analysis"
"golang.org/x/tools/go/analysis/analysistest"
"golang.org/x/tools/go/analysis/internal/checker"
"golang.org/x/tools/go/analysis/passes/inspect"
"golang.org/x/tools/go/ast/inspector"
"golang.org/x/tools/internal/testenv"
)
var from, to string
func TestApplyFixes(t *testing.T) {
testenv.NeedsGoPackages(t)
from = "bar"
to = "baz"
files := map[string]string{
"rename/test.go": `package rename
func Foo() {
bar := 12
_ = bar
}
// the end
`}
want := `package rename
func Foo() {
baz := 12
_ = baz
}
// the end
`
testdata, cleanup, err := analysistest.WriteFiles(files)
if err != nil {
t.Fatal(err)
}
path := filepath.Join(testdata, "src/rename/test.go")
checker.Fix = true
checker.Run([]string{"file=" + path}, []*analysis.Analyzer{analyzer})
contents, err := ioutil.ReadFile(path)
if err != nil {
t.Fatal(err)
}
got := string(contents)
if got != want {
t.Errorf("contents of rewritten file\ngot: %s\nwant: %s", got, want)
}
defer cleanup()
}
var analyzer = &analysis.Analyzer{
Name: "rename",
Requires: []*analysis.Analyzer{inspect.Analyzer},
Run: run,
}
func run(pass *analysis.Pass) (interface{}, error) {
inspect := pass.ResultOf[inspect.Analyzer].(*inspector.Inspector)
nodeFilter := []ast.Node{(*ast.Ident)(nil)}
inspect.Preorder(nodeFilter, func(n ast.Node) {
ident := n.(*ast.Ident)
if ident.Name == from {
msg := fmt.Sprintf("renaming %q to %q", from, to)
pass.Report(analysis.Diagnostic{
Pos: ident.Pos(),
End: ident.End(),
Message: msg,
SuggestedFixes: []analysis.SuggestedFix{{
Message: msg,
TextEdits: []analysis.TextEdit{{
Pos: ident.Pos(),
End: ident.End(),
NewText: []byte(to),
}},
}},
})
}
})
return nil, nil
}
|
