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https://github.com/golang/go
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2e46a0a997
Both the thing we're switching on, as well as the cases we're switching for.
Convert anything containing a type parameter to interface{} before the
comparison happens.
Fixes #51522
Change-Id: I97ba9429ed332cb7d4240cb60f46d42226dcfa5f
Reviewed-on: https://go-review.googlesource.com/c/go/+/391594
Trust: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
63 lines
730 B
Go
63 lines
730 B
Go
// run
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// Copyright 2022 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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func f[T comparable](i any) {
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var t T
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switch i {
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case t:
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// ok
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default:
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println("FAIL: switch i")
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}
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switch t {
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case i:
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// ok
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default:
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println("FAIL: switch t")
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}
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}
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type myint int
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func (m myint) foo() {
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}
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type fooer interface {
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foo()
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}
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type comparableFoo interface {
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comparable
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foo()
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}
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func g[T comparableFoo](i fooer) {
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var t T
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switch i {
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case t:
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// ok
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default:
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println("FAIL: switch i")
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}
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switch t {
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case i:
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// ok
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default:
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println("FAIL: switch t")
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}
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}
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func main() {
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f[int](0)
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g[myint](myint(0))
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}
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