cmd/gofmt: using reflect.TypeAssert

cuiweixie · cuiweixie · commit 00f95ceb3dae · 2025-08-20T20:02:00.000+08:00
Change-Id: Ic461ba196480d94758d275e96a53e3fc1f6c9a3d
diff --git a/src/cmd/gofmt/rewrite.go b/src/cmd/gofmt/rewrite.go
@@ -165,7 +165,7 @@ func match(m map[string]reflect.Value, pattern, val reflect.Value) bool {
 		name := pattern.Interface().(*ast.Ident).Name
 		if isWildcard(name) && val.IsValid() {
 			// wildcards only match valid (non-nil) expressions.
-			if _, ok := val.Interface().(ast.Expr); ok && !val.IsNil() {
+			if _, ok := reflect.TypeAssert[ast.Expr](val); ok && !val.IsNil() {
 				if old, ok := m[name]; ok {
 					return match(nil, old, val)
 				}

Original file line number	Diff line number	Diff line change
`@@ -165,7 +165,7 @@ func match(m map[string]reflect.Value, pattern, val reflect.Value) bool {`
`165`	`165`	`name := pattern.Interface().(*ast.Ident).Name`
`166`	`166`	`if isWildcard(name) && val.IsValid() {`
`167`	`167`	`// wildcards only match valid (non-nil) expressions.`
`168`		`- if _, ok := val.Interface().(ast.Expr); ok && !val.IsNil() {`
	`168`	`+ if _, ok := reflect.TypeAssert[ast.Expr](val); ok && !val.IsNil() {`
`169`	`169`	`if old, ok := m[name]; ok {`
`170`	`170`	`return match(nil, old, val)`
`171`	`171`	`}`