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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.
//go:build !compiler_bootstrap
package test
// The racecompile builder only builds packages, but does not build
// or run tests. This is a non-test file to hold cases that (used
// to) trigger compiler data races, so they will be exercised on
// the racecompile builder.
//
// This package is not imported so functions here are not included
// in the actual compiler.
// Issue 55357: data race when building multiple instantiations of
// generic closures with _ parameters.
func Issue55357() {
type U struct {
A int
B string
C string
}
var q T55357[U]
q.Count()
q.List()
type M struct {
A int64
B uint32
C uint32
}
var q2 T55357[M]
q2.Count()
q2.List()
}
type T55357[T any] struct{}
//go:noinline
func (q *T55357[T]) do(w, v bool, fn func(bk []byte, v T) error) error {
return nil
}
func (q *T55357[T]) Count() (n int, rerr error) {
err := q.do(false, false, func(kb []byte, _ T) error {
n++
return nil
})
return n, err
}
func (q *T55357[T]) List() (list []T, rerr error) {
var l []T
err := q.do(false, true, func(_ []byte, v T) error {
l = append(l, v)
return nil
})
if err != nil {
return nil, err
}
return l, nil
}