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// $G $D/$F.go && $L $F.$A && ./$A.out || echo BUG: bug286 failed

// Copyright 2010 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.

// Test case for issue 849.

package main

type I interface {

        f()

}

var callee string

var error_ bool

type T int

func (t *T) f() { callee = "f" }

func (i *T) g() { callee = "g" }

// test1 and test2 are the same except that in the interface J

// the entries are swapped. test2 and test3 are the same except

// that in test3 the interface J is declared outside the function.

//

// Error: test2 calls g instead of f

func test1(x I) {

        type J interface {

                I

                g()

        }

        x.(J).f()

        if callee != "f" {

                println("test1 called", callee)

                error_ = true

        }

}

func test2(x I) {

        type J interface {

                g()

                I

        }

        x.(J).f()

        if callee != "f" {

                println("test2 called", callee)

                error_ = true

        }

}

type J interface {

        g()

        I

}

func test3(x I) {

        x.(J).f()

        if callee != "f" {

                println("test3 called", callee)

                error_ = true

        }

}

func main() {

        x := new(T)

        test1(x)

        test2(x)

        test3(x)

        if error_ {

                panic("wrong method called")

        }

}

/*

6g bug286.go && 6l bug286.6 && 6.out

test2 called g

panic: wrong method called

panic PC=0x24e040

runtime.panic+0x7c /home/gri/go1/src/pkg/runtime/proc.c:1012

        runtime.panic(0x0, 0x24e0a0)

main.main+0xef /home/gri/go1/test/bugs/bug286.go:76

        main.main()

mainstart+0xf /home/gri/go1/src/pkg/runtime/amd64/asm.s:60

        mainstart()

goexit /home/gri/go1/src/pkg/runtime/proc.c:145

        goexit()

*/