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79 lines
1.6 KiB
79 lines
1.6 KiB
// Copyright 2019 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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package main
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import "./embed0"
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type X1 struct{}
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func (X1) Foo() {}
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type X2 struct{}
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func (X2) foo() {}
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type X3 struct{}
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func (X3) foo(int) {}
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type X4 struct{ p.M1 }
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type X5 struct{ p.M1 }
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func (X5) foo(int) {}
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type X6 struct{ p.M2 }
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type X7 struct{ p.M2 }
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func (X7) foo() {}
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type X8 struct{ p.M2 }
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func (X8) foo(int) {}
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func main() {
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var i1 interface{} = X1{}
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check(func() { _ = i1.(p.I1) }, "interface conversion: main.X1 is not p.I1: missing method Foo")
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var i2 interface{} = X2{}
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check(func() { _ = i2.(p.I2) }, "interface conversion: main.X2 is not p.I2: missing method foo")
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var i3 interface{} = X3{}
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check(func() { _ = i3.(p.I2) }, "interface conversion: main.X3 is not p.I2: missing method foo")
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var i4 interface{} = X4{}
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check(func() { _ = i4.(p.I2) }, "interface conversion: main.X4 is not p.I2: missing method foo")
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var i5 interface{} = X5{}
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check(func() { _ = i5.(p.I2) }, "interface conversion: main.X5 is not p.I2: missing method foo")
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var i6 interface{} = X6{}
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check(func() { _ = i6.(p.I2) }, "")
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var i7 interface{} = X7{}
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check(func() { _ = i7.(p.I2) }, "")
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var i8 interface{} = X8{}
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check(func() { _ = i8.(p.I2) }, "")
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}
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func check(f func(), msg string) {
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defer func() {
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v := recover()
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if v == nil {
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if msg == "" {
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return
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}
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panic("did not panic")
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}
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got := v.(error).Error()
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if msg != got {
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panic("want '" + msg + "', got '" + got + "'")
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}
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}()
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f()
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}
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