1// errorcheck
2
3// Copyright 2009 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// Verify that erroneous initialization expressions are caught by the compiler
8// Does not compile.
9
10package main
11
12type S struct {
13	A, B, C, X, Y, Z int
14}
15
16type T struct {
17	S
18}
19
20var x = 1
21var a1 = S{0, X: 1}                             // ERROR "mixture|undefined" "too few values"
22var a2 = S{Y: 3, Z: 2, Y: 3}                    // ERROR "duplicate"
23var a3 = T{S{}, 2, 3, 4, 5, 6}                  // ERROR "convert|too many"
24var a4 = [5]byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10} // ERROR "index|too many"
25var a5 = []byte{x: 2}                           // ERROR "index"
26var a6 = []byte{1: 1, 2: 2, 1: 3}               // ERROR "duplicate"
27
28var ok1 = S{}       // should be ok
29var ok2 = T{S: ok1} // should be ok
30
31// These keys can be computed at compile time but they are
32// not constants as defined by the spec, so they do not trigger
33// compile-time errors about duplicate key values.
34// See issue 4555.
35
36type Key struct{ X, Y int }
37
38var _ = map[Key]string{
39	Key{1, 2}: "hello",
40	Key{1, 2}: "world",
41}
42