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95 lines
1.5 KiB
Go
95 lines
1.5 KiB
Go
// $G $D/$F.go && $L $F.$A && ./$A.out || echo BUG: bug286 failed
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// Copyright 2010 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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// Test case for issue 849.
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package main
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type I interface {
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f()
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}
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var callee string
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var error bool
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type T int
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func (t *T) f() { callee = "f" }
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func (i *T) g() { callee = "g" }
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// test1 and test2 are the same except that in the interface J
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// the entries are swapped. test2 and test3 are the same except
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// that in test3 the interface J is declared outside the function.
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//
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// Error: test2 calls g instead of f
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func test1(x I) {
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type J interface {
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I
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g()
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}
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x.(J).f()
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if callee != "f" {
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println("test1 called", callee)
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error = true
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}
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}
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func test2(x I) {
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type J interface {
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g()
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I
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}
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x.(J).f()
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if callee != "f" {
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println("test2 called", callee)
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error = true
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}
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}
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type J interface {
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g()
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I
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}
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func test3(x I) {
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x.(J).f()
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if callee != "f" {
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println("test3 called", callee)
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error = true
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}
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}
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func main() {
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x := new(T)
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test1(x)
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test2(x)
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test3(x)
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if error {
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panic("wrong method called")
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}
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}
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/*
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6g bug286.go && 6l bug286.6 && 6.out
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test2 called g
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panic: wrong method called
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panic PC=0x24e040
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runtime.panic+0x7c /home/gri/go1/src/pkg/runtime/proc.c:1012
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runtime.panic(0x0, 0x24e0a0)
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main.main+0xef /home/gri/go1/test/bugs/bug286.go:76
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main.main()
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mainstart+0xf /home/gri/go1/src/pkg/runtime/amd64/asm.s:60
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mainstart()
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goexit /home/gri/go1/src/pkg/runtime/proc.c:145
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goexit()
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*/
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