-
Notifications
You must be signed in to change notification settings - Fork 1
/
validator_analyzer.go
65 lines (62 loc) · 1.33 KB
/
validator_analyzer.go
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
package gotaglint
import (
"fmt"
"github.com/fatih/structtag"
"go/ast"
"go/types"
"golang.org/x/tools/go/analysis"
"strings"
)
var BindingNameAnalyzer = analysis.Analyzer{
Name: "bindingtaglint",
Doc: "report bad usage for validator tag",
Run: runBindingTagLint,
}
func runBindingTagLint(pass *analysis.Pass) (interface{}, error) {
for _, file := range pass.Files {
ast.Inspect(file, func(node ast.Node) bool {
st, ok := node.(*ast.StructType)
if !ok {
return true
}
if st.Fields == nil {
return true
}
for _, f := range st.Fields.List {
if f == nil {
continue
}
if f.Tag == nil {
continue
}
tags, err := structtag.Parse(strings.Trim(f.Tag.Value, "`"))
if err != nil {
return true
}
for _, tag := range tags.Tags() {
if tag.Key != "binding" {
continue
}
if tag.Name == "exists" || tag.HasOption("exists") {
t := pass.TypesInfo.TypeOf(f.Type)
if t == nil {
return true
}
switch t.Underlying().(type) {
case *types.Pointer:
case *types.Interface:
default:
pass.Report(analysis.Diagnostic{
Pos: f.Type.Pos(),
End: f.Type.End(),
Message: fmt.Sprintf("exists field must be pointer/interface"),
})
}
}
}
}
return true
})
}
return nil, nil
}