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[dev.unified] test: add regress test for generic select statements
The Go 1.18 frontend ICEs on select case clauses that involve an implicit conversion. Change-Id: I1c0865bf97d8b0a8fbddb0da43333e909df0d38a Reviewed-on: https://go-review.googlesource.com/c/go/+/414878 TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Matthew Dempsky <mdempsky@google.com> Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com> Reviewed-by: David Chase <drchase@google.com>
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// run | ||
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// Copyright 2022 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. | ||
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// Test that implicit conversions to interface type in a select/case | ||
// clause are compiled correctly. | ||
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package main | ||
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import "fmt" | ||
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func main() { f[int]() } | ||
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func f[T any]() { | ||
ch := make(chan T) | ||
close(ch) | ||
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var i, ok any | ||
select { | ||
case i, ok = <-ch: | ||
} | ||
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fmt.Printf("%T %T\n", i, ok) | ||
} |
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int bool |