1// errorcheck
2
3// Copyright 2017 The Go Authors. All rights reserved.
4// Use of this source code is governed by a BSD-style
5// license that can be found in the LICENSE file.
6
7// Compiler rejected initialization of structs to composite literals
8// in a non-static setting (e.g. in a function)
9// when the struct contained a field named _.
10
11package p
12
13type T struct {
14	_ string
15}
16
17func ok() {
18	var x = T{"check"}
19	_ = x
20	_ = T{"et"}
21}
22
23var (
24	y = T{"stare"}
25	w = T{_: "look"} // ERROR "invalid field name _ in struct initializer|expected struct field name|unknown field _ in struct literal of type T"
26	_ = T{"page"}
27	_ = T{_: "out"} // ERROR "invalid field name _ in struct initializer|expected struct field name|unknown field _ in struct literal of type T"
28)
29
30func bad() {
31	var z = T{_: "verse"} // ERROR "invalid field name _ in struct initializer|expected struct field name|unknown field _ in struct literal of type T"
32	_ = z
33	_ = T{_: "itinerary"} // ERROR "invalid field name _ in struct initializer|expected struct field name|unknown field _ in struct literal of type T"
34}
35