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42 lines
1.0 KiB
42 lines
1.0 KiB
4 months ago
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// errorcheck
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Verify that erroneous initialization expressions are caught by the compiler
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// Does not compile.
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package main
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type S struct {
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A, B, C, X, Y, Z int
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}
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type T struct {
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S
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}
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var x = 1
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var a1 = S { 0, X: 1 } // ERROR "mixture|undefined"
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var a2 = S { Y: 3, Z: 2, Y: 3 } // ERROR "duplicate"
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var a3 = T { S{}, 2, 3, 4, 5, 6 } // ERROR "convert|too many"
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var a4 = [5]byte{ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 } // ERROR "index|too many"
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var a5 = []byte { x: 2 } // ERROR "index"
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var a6 = []byte{1: 1, 2: 2, 1: 3} // ERROR "duplicate index"
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var ok1 = S { } // should be ok
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var ok2 = T { S: ok1 } // should be ok
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// These keys can be computed at compile time but they are
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// not constants as defined by the spec, so they do not trigger
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// compile-time errors about duplicate key values.
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// See issue 4555.
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type Key struct {X, Y int}
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var _ = map[Key]string{
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Key{1,2}: "hello",
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Key{1,2}: "world",
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}
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