func (c *astConverter) maybeReplace(node ast.Node, ann *annotations.Annotation, replace func(e ast.Expr)) bool {
if replace == nil {
return false
}
if typ, ok := ann.Type(); ok {
e, err := parser.ParseExpr(typ)
if err == nil {
replace(e)
return true
}
}
n := reflect.ValueOf(node)
if n.Elem().Type().Kind() != reflect.Struct {
return false
}
doc := n.Elem().FieldByName("Doc")
if !doc.IsValid() {
return false
}
cg := doc.Interface().(*ast.CommentGroup)
if cg == nil {
return false
}
for _, l := range cg.List {
s := l.Text
s = strings.TrimPrefix(s, "//")
s = strings.TrimPrefix(s, "/*")
s = strings.TrimSpace(s)
if !strings.HasPrefix(s, "For SGo: ") {
continue
}
ann := s[len("For SGo: "):]
e, err := parser.ParseExpr(ann)
if err != nil {
return false
}
replace(e)
return true
}
return false
}
