================ @@ -0,0 +1,59 @@ +//===-- invoke type_traits --------------------------------------*- C++ -*-===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_LIBC_SRC_SUPPORT_CPP_TYPE_TRAITS_INVOKE_H +#define LLVM_LIBC_SRC_SUPPORT_CPP_TYPE_TRAITS_INVOKE_H + +#include "src/__support/CPP/type_traits/decay.h" +#include "src/__support/CPP/type_traits/enable_if.h" +#include "src/__support/CPP/type_traits/is_base_of.h" +#include "src/__support/CPP/type_traits/is_same.h" +#include "src/__support/CPP/utility/forward.h" + +namespace __llvm_libc::cpp { + +namespace detail { + +// Catch all function and functor types. +template <class FunctionPtrType> struct invoke_dispatcher { + template <class T, class... Args, + typename = cpp::enable_if_t< + cpp::is_same_v<cpp::decay_t<T>, FunctionPtrType>>> + static auto call(T &&fun, Args &&...args) { + return cpp::forward<T>(fun)(cpp::forward<Args>(args)...); + } +}; + +// Catch pointer to member function types. +template <class Class, class FunctionReturnType> +struct invoke_dispatcher<FunctionReturnType Class::*> { + using FunctionPtrType = FunctionReturnType Class::*; + + template <class T, class... Args, class DecayT = cpp::decay_t<T>> + static auto call(FunctionPtrType fun, T &&t1, Args &&...args) { + if constexpr (cpp::is_base_of_v<Class, DecayT>) { + // T is a (possibly cv ref) type. + return (cpp::forward<T>(t1).*fun)(cpp::forward<Args>(args)...); + } else { + // T is assumed to be a pointer type. ---------------- gchatelet wrote:
Done https://github.com/llvm/llvm-project/pull/65750 _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
