Title: Wrong UFCS macro used outside declaration's initializer.
Description:
See 827ed79#diff-e683e1259bbc0d6de7f1fbf797fb772f31a0a1ef2254ec317d15c298102fa3f3R2762-R2767.
Minimal reproducer (https://cpp2.godbolt.org/z/91TdsfKvv):
struct A {
constexpr bool a() { return true; }
};
f: <T> (x: std::type_identity_t<decltype(T().a())>)
-> std::type_identity_t<decltype(T().a())>
requires T().a() = {
return x;
}
main: () = f<A>(true);
Commands:
cppfront -clean-cpp1 main.cpp2
clang++17 -std=c++23 -stdlib=libc++ -lc++abi -pedantic-errors -Wall -Wextra -Wconversion -I . main.cpp
Expected result:
template<typename T> [[nodiscard]] auto f(cpp2::in<std::type_identity_t<decltype(CPP2_UFCS_0_NONLOCAL(a, T()))>> x) ->
std::type_identity_t<decltype(CPP2_UFCS_0_NONLOCAL(a, T()))>
requires (CPP2_UFCS_0_NONLOCAL(a, T()))
Actual result and error:
template<typename T> [[nodiscard]] auto f(cpp2::in<std::type_identity_t<decltype(CPP2_UFCS_0(a, T()))>> x) ->
std::type_identity_t<decltype(CPP2_UFCS_0(a, T()))>
requires (CPP2_UFCS_0(a, T()))
Cpp2 lowered to Cpp1:
#include "cpp2util.h"
struct A {
constexpr bool a() { return true; }
};
template<typename T> [[nodiscard]] auto f(cpp2::in<std::type_identity_t<decltype(CPP2_UFCS_0(a, T()))>> x) ->
std::type_identity_t<decltype(CPP2_UFCS_0(a, T()))>;
auto main() -> int;
template<typename T> [[nodiscard]] auto f(cpp2::in<std::type_identity_t<decltype(CPP2_UFCS_0(a, T()))>> x) ->
std::type_identity_t<decltype(CPP2_UFCS_0(a, T()))>
requires (CPP2_UFCS_0(a, T()))
{
std::ignore = x;
}
auto main() -> int { f<A>(true); }
Output:
build/_cppfront/main.cpp:14:82: error: non-local lambda expression cannot have a capture-default
14 | template<typename T> [[nodiscard]] auto f(cpp2::in<std::type_identity_t<decltype(CPP2_UFCS_0(a, T()))>> x) ->
| ^
raw.githubusercontent.com/hsutter/cppfront/main/include/cpp2util.h:706:2: note: expanded from macro 'CPP2_UFCS_0'
706 | [&](auto&& obj) CPP2_FORCE_INLINE_LAMBDA -> decltype(auto) { \
| ^
build/_cppfront/main.cpp:15:33: error: non-local lambda expression cannot have a capture-default
15 | std::type_identity_t<decltype(CPP2_UFCS_0(a, T()))>
| ^
raw.githubusercontent.com/hsutter/cppfront/main/include/cpp2util.h:706:2: note: expanded from macro 'CPP2_UFCS_0'
706 | [&](auto&& obj) CPP2_FORCE_INLINE_LAMBDA -> decltype(auto) { \
| ^
build/_cppfront/main.cpp:16:11: error: non-local lambda expression cannot have a capture-default
16 | requires (CPP2_UFCS_0(a, T()))
| ^
raw.githubusercontent.com/hsutter/cppfront/main/include/cpp2util.h:706:2: note: expanded from macro 'CPP2_UFCS_0'
706 | [&](auto&& obj) CPP2_FORCE_INLINE_LAMBDA -> decltype(auto) { \
| ^
Title: Wrong UFCS macro used outside declaration's initializer.
Description:
See 827ed79#diff-e683e1259bbc0d6de7f1fbf797fb772f31a0a1ef2254ec317d15c298102fa3f3R2762-R2767.
Minimal reproducer (https://cpp2.godbolt.org/z/91TdsfKvv):
Commands:
cppfront -clean-cpp1 main.cpp2 clang++17 -std=c++23 -stdlib=libc++ -lc++abi -pedantic-errors -Wall -Wextra -Wconversion -I . main.cppExpected result:
Actual result and error:
Cpp2 lowered to Cpp1:
Output: