Source file test/typeparam/issue50993.go

     1  // compile -d=checkptr
     2  
     3  // Copyright 2022 The Go Authors. All rights reserved.
     4  // Use of this source code is governed by a BSD-style
     5  // license that can be found in the LICENSE file.
     6  
     7  package main
     8  
     9  import (
    10  	"sync/atomic"
    11  	"unsafe"
    12  )
    13  
    14  type Node[T any] struct {
    15  	Next *Node[T]
    16  	// Prev  *Node[T]
    17  }
    18  
    19  func LoadPointer[T any](addr **T) (val *T) {
    20  	return (*T)(
    21  		atomic.LoadPointer(
    22  			(*unsafe.Pointer)(unsafe.Pointer(addr)),
    23  		))
    24  }
    25  
    26  func (q *Node[T]) Pop() {
    27  	var tail, head *Node[T]
    28  	if head == LoadPointer(&tail) {
    29  	}
    30  }
    31  
    32  func main() {
    33  	ch := Node[uint64]{}
    34  	ch.Pop()
    35  }
    36  

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