| // errorcheck | |
| // Copyright 2018 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. | |
| // Check that calling a function shadowing a built-in provides a good | |
| // error message. | |
| package main | |
| func F() { | |
| slice := []int{1, 2, 3} | |
| len := int(2) | |
| println(len(slice)) // ERROR "cannot call non-function len .type int., declared at|expected function" | |
| } |