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115e4c9c14
This CL expands the test for #29612 to check that type switches also work correctly when type hashes collide. Change-Id: Ia153743e6ea0736c1a33191acfe4d8ba890be527 Reviewed-on: https://go-review.googlesource.com/c/go/+/195782 Run-TryBot: Matthew Dempsky <mdempsky@google.com> Reviewed-by: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
50 lines
819 B
Go
50 lines
819 B
Go
// run
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// 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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// Do not panic on conversion to anonymous interface, which
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// is similar-looking interface types in different packages.
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package main
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import (
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"fmt"
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ssa1 "./p1/ssa"
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ssa2 "./p2/ssa"
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)
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func main() {
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v1 := &ssa1.T{}
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_ = v1
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v2 := &ssa2.T{}
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ssa2.Works(v2)
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ssa2.Panics(v2) // This call must not panic
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swt(v1, 1)
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swt(v2, 2)
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}
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//go:noinline
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func swt(i interface{}, want int) {
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var got int
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switch i.(type) {
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case *ssa1.T:
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got = 1
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case *ssa2.T:
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got = 2
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case int8, int16, int32, int64:
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got = 3
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case uint8, uint16, uint32, uint64:
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got = 4
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}
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if got != want {
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panic(fmt.Sprintf("switch %v: got %d, want %d", i, got, want))
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}
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}
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