go/test/newexpr.go
Cuong Manh Le 0f31d742cd cmd/compile: fix ICE with new(<untyped expr>)
Fixes #75617

Change-Id: Iaee7d4556db54b9999f5ba8458e7c05c11ccfc36
Reviewed-on: https://go-review.googlesource.com/c/go/+/707075
Reviewed-by: Junyang Shao <shaojunyang@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
2025-09-26 10:10:03 -07:00

39 lines
715 B
Go

// run
// Copyright 2025 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
// Issue #45624 is the proposal to accept new(expr) in go1.26.
// Here we test its run-time behavior.
func main() {
{
p := new(123) // untyped constant expr
if *p != 123 {
panic("wrong value")
}
}
{
x := 42
p := new(x) // non-constant expr
if *p != x {
panic("wrong value")
}
}
{
x := [2]int{123, 456}
p := new(x) // composite value
if *p != x {
panic("wrong value")
}
}
{
var i int
v := new(i > 0) // untyped expression, see issue #75617
if *v != false {
panic("wrong value")
}
}
}