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go/test/typeparam/issue48137.go
Dan Scales 07b30a4f77 cmd/compile: delay transformAssign if lhs/rhs have typeparam
This also requires that we sometimes delay transformSelect(), if the
assignments in the Comm part of the select have not been transformed.

Fixes #48137

Change-Id: I163aa1f999d1e63616280dca807561b12b2aa779
Reviewed-on: https://go-review.googlesource.com/c/go/+/347915
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2021-09-17 23:04:15 +00:00

26 lines
379 B
Go

// run -gcflags=-G=3
// Copyright 2021 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 main
type Constraint[T any] interface {
~func() T
}
func Foo[T Constraint[T]]() T {
var t T
t = func() T {
return t
}
return t
}
func main() {
type Bar func() Bar
Foo[Bar]()
}