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// 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
package s
import (
p0 "./bug0"
p1 "./bug1"
)
// both p0.T and p1.T are struct { X, Y int }.
var v0 p0.T
var v1 p1.T
// interfaces involving the two
type I0 interface {
M(p0.T)
}
type I1 interface {
M(p1.T)
}
// t0 satisfies I0 and p0.I
type t0 int
func (t0) M(p0.T) {}
// t1 satisfies I1 and p1.I
type t1 float64
func (t1) M(p1.T) {}
// check static interface assignments
var i0 I0 = t0(0) // ok
var i1 I1 = t1(0) // ok
var i2 I0 = t1(0) // ERROR "does not implement|incompatible"
var i3 I1 = t0(0) // ERROR "does not implement|incompatible"
var p0i p0.I = t0(0) // ok
var p1i p1.I = t1(0) // ok
var p0i1 p0.I = t1(0) // ERROR "does not implement|incompatible"
var p0i2 p1.I = t0(0) // ERROR "does not implement|incompatible"
func foobar() {
// check that cannot assign one to the other,
// but can convert.
v0 = v1 // ERROR "assign|cannot use"
v1 = v0 // ERROR "assign|cannot use"
v0 = p0.T(v1)
v1 = p1.T(v0)
i0 = i1 // ERROR "cannot use|incompatible"
i1 = i0 // ERROR "cannot use|incompatible"
p0i = i1 // ERROR "cannot use|incompatible"
p1i = i0 // ERROR "cannot use|incompatible"
i0 = p1i // ERROR "cannot use|incompatible"
i1 = p0i // ERROR "cannot use|incompatible"
p0i = p1i // ERROR "cannot use|incompatible"
p1i = p0i // ERROR "cannot use|incompatible"
i0 = p0i
p0i = i0
i1 = p1i
p1i = i1
}