xref: /aosp_15_r20/external/cronet/base/no_destructor_nocompile.nc (revision 6777b5387eb2ff775bb5750e3f5d96f37fb7352b)
1*6777b538SAndroid Build Coastguard Worker// Copyright 2021 The Chromium Authors
2*6777b538SAndroid Build Coastguard Worker// Use of this source code is governed by a BSD-style license that can be
3*6777b538SAndroid Build Coastguard Worker// found in the LICENSE file.
4*6777b538SAndroid Build Coastguard Worker
5*6777b538SAndroid Build Coastguard Worker// This is a "No Compile Test" suite.
6*6777b538SAndroid Build Coastguard Worker// http://dev.chromium.org/developers/testing/no-compile-tests
7*6777b538SAndroid Build Coastguard Worker
8*6777b538SAndroid Build Coastguard Worker#include "base/no_destructor.h"
9*6777b538SAndroid Build Coastguard Worker
10*6777b538SAndroid Build Coastguard Workernamespace base {
11*6777b538SAndroid Build Coastguard Worker
12*6777b538SAndroid Build Coastguard Workervoid WontCompileWithTrivialTypes() {
13*6777b538SAndroid Build Coastguard Worker  // NoDestructor should not be used with trivial types; trivial types can
14*6777b538SAndroid Build Coastguard Worker  // simply be directly declared as globals.
15*6777b538SAndroid Build Coastguard Worker  static NoDestructor<bool> x;  // expected-error@*:* {{static assertion failed due to requirement '!(std::is_trivially_constructible_v<bool> && std::is_trivially_destructible_v<bool>)'}}
16*6777b538SAndroid Build Coastguard Worker}
17*6777b538SAndroid Build Coastguard Worker
18*6777b538SAndroid Build Coastguard Workerstruct TypeWithUserConstructor {
19*6777b538SAndroid Build Coastguard Worker  TypeWithUserConstructor() {}
20*6777b538SAndroid Build Coastguard Worker};
21*6777b538SAndroid Build Coastguard Worker
22*6777b538SAndroid Build Coastguard Workervoid WontCompileWithTriviallyDestructibleTypes() {
23*6777b538SAndroid Build Coastguard Worker  // NoDestructor should only be used for non-trivially destructible types;
24*6777b538SAndroid Build Coastguard Worker  // they should be declared as function-level statics instead.
25*6777b538SAndroid Build Coastguard Worker  static NoDestructor<TypeWithUserConstructor> x;  // expected-error@*:* {{static assertion failed due to requirement '!std::is_trivially_destructible_v<base::TypeWithUserConstructor>'}}
26*6777b538SAndroid Build Coastguard Worker}
27*6777b538SAndroid Build Coastguard Worker
28*6777b538SAndroid Build Coastguard Worker}  // namespace base
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