| // Copyright 2021 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. | 
 |  | 
 | //go:build !compiler_bootstrap | 
 | // +build !compiler_bootstrap | 
 |  | 
 | package main | 
 |  | 
 | import ( | 
 | 	"go/ast" | 
 | 	"go/token" | 
 | ) | 
 |  | 
 | func (f *File) walkUnexpected(x interface{}, context astContext, visit func(*File, interface{}, astContext)) { | 
 | 	switch n := x.(type) { | 
 | 	default: | 
 | 		error_(token.NoPos, "unexpected type %T in walk", x) | 
 | 		panic("unexpected type") | 
 |  | 
 | 	case *ast.IndexListExpr: | 
 | 		f.walk(&n.X, ctxExpr, visit) | 
 | 		f.walk(n.Indices, ctxExpr, visit) | 
 | 	} | 
 | } |