xref: /llvm-project/clang/test/SemaCXX/coroutine-dealloc.cpp (revision d2b0b26132ce5d3d9022edbf274f01e9de764673)
1 // Tests that the behavior will be good if there are multiple operator delete in the promise_type.
2 // RUN: %clang_cc1 %s -std=c++20 %s -fsyntax-only -verify
3 // expected-no-diagnostics
4 
5 #include "Inputs/std-coroutine.h"
6 
7 namespace std {
8     typedef __SIZE_TYPE__ size_t;
9     enum class align_val_t : size_t {};
10 }
11 
12 struct task {
13   struct promise_type {
initial_suspendtask::promise_type14     auto initial_suspend() { return std::suspend_always{}; }
final_suspendtask::promise_type15     auto final_suspend() noexcept { return std::suspend_always{}; }
get_return_objecttask::promise_type16     auto get_return_object() { return task{}; }
unhandled_exceptiontask::promise_type17     void unhandled_exception() {}
return_valuetask::promise_type18     void return_value(int) {}
19 
20     void operator delete(void *ptr, void *meaningless_placeholder);
21     void operator delete(void *ptr);
22   };
23 };
24 
f()25 task f() {
26   co_return 43;
27 }
28 
29 // From https://github.com/llvm/llvm-project/issues/60545
30 struct generator {
31     struct promise_type {
32         generator get_return_object();
33         std::suspend_always initial_suspend();
34         std::suspend_always final_suspend() noexcept;
35         void return_void();
36         [[noreturn]] void unhandled_exception();
37 
38         static void* operator new(std::size_t size);
39         static void operator delete(void* ptr, const std::size_t size);
40     };
41 };
42 
goo()43 generator goo() { co_return; }
44