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// $G $D/$F.go && $L $F.$A && ./$A.out
// Copyright 2009 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.
// check that big vs small, pointer vs not
// interface methods work.
package main
type I interface { M() int64 }
type BigPtr struct { a, b, c, d int64 }
func (z *BigPtr) M() int64 { return z.a+z.b+z.c+z.d }
type SmallPtr struct { a int32 }
func (z *SmallPtr) M() int64 { return int64(z.a) }
type IntPtr int32
func (z *IntPtr) M() int64 { return int64(*z) }
var bad bool
func test(name string, i I) {
m := i.M();
if m != 12345 {
println(name, m);
bad = true;
}
}
func ptrs() {
var bigptr BigPtr = BigPtr{ 10000, 2000, 300, 45 };
var smallptr SmallPtr = SmallPtr{ 12345 };
var intptr IntPtr = 12345;
test("bigptr", bigptr);
test("&bigptr", &bigptr);
test("smallptr", smallptr);
test("&smallptr", &smallptr);
test("intptr", intptr);
test("&intptr", &intptr);
}
type Big struct { a, b, c, d int64 }
func (z Big) M() int64 { return z.a+z.b+z.c+z.d }
type Small struct { a int32 }
func (z Small) M() int64 { return int64(z.a) }
type Int int32
func (z Int) M() int64 { return int64(z) }
func nonptrs() {
var big Big = Big{ 10000, 2000, 300, 45 };
var small Small = Small{ 12345 };
var int Int = 12345;
test("big", big);
test("&big", &big);
test("small", small);
test("&small", &small);
test("int", int);
test("&int", &int);
}
func main() {
ptrs();
nonptrs();
if bad {
sys.Exit(1)
}
}
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