File: warn-unused-parameters-coroutine.cpp

package info (click to toggle)
llvm-toolchain-21 1%3A21.1.6-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,245,028 kB
  • sloc: cpp: 7,619,726; ansic: 1,434,018; asm: 1,058,748; python: 252,740; f90: 94,671; objc: 70,685; lisp: 42,813; pascal: 18,401; sh: 8,601; ml: 5,111; perl: 4,720; makefile: 3,675; awk: 3,523; javascript: 2,409; xml: 892; fortran: 770
file content (34 lines) | stat: -rw-r--r-- 809 bytes parent folder | download | duplicates (11) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
 
// RUN: %clang_cc1 -fsyntax-only -Wunused-parameter -verify -std=c++20 %s

#include "Inputs/std-coroutine.h"

struct awaitable {
  bool await_ready() noexcept;
  void await_resume() noexcept;
  void await_suspend(std::coroutine_handle<>) noexcept;
};

struct task : awaitable {
  struct promise_type {
    task get_return_object() noexcept;
    awaitable initial_suspend() noexcept;
    awaitable final_suspend() noexcept;
    void unhandled_exception() noexcept;
    void return_void() noexcept;
  };
};

task foo(int a) { // expected-warning{{unused parameter 'a'}}
  co_return;
}

task bar(int a, int b) { // expected-warning{{unused parameter 'b'}}
  a = a + 1;
  co_return;
}

void create_closure() {
  auto closure = [](int c) -> task { // expected-warning{{unused parameter 'c'}}
    co_return;
  };
}