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gchateletgchatelet
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[libc][NFC] split type_traits / utility in separate files (#65314)
`type_traits` and `utility` refer to each other in their implementations. Also `type_traits` starts to become too big to be manageable. This PR splits each function into individual files. FTR this is [how libcxx handles large headers as well](https://github.com/llvm/llvm-project/tree/main/libcxx/include/__type_traits).
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51 files changed

Lines changed: 1499 additions & 395 deletions

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‎libc/src/__support/CPP/functional.h‎

Lines changed: 13 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -9,8 +9,13 @@
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#ifndef LLVM_LIBC_SRC_SUPPORT_CPP_FUNCTIONAL_H
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#define LLVM_LIBC_SRC_SUPPORT_CPP_FUNCTIONAL_H
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#include "src/__support/CPP/type_traits.h"
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#include "src/__support/CPP/utility.h"
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#include "src/__support/CPP/type_traits/enable_if.h"
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#include "src/__support/CPP/type_traits/is_convertible.h"
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#include "src/__support/CPP/type_traits/is_same.h"
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#include "src/__support/CPP/type_traits/is_void.h"
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#include "src/__support/CPP/type_traits/remove_cvref.h"
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#include "src/__support/CPP/type_traits/remove_reference.h"
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#include "src/__support/CPP/utility/forward.h"
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#include "src/__support/macros/attributes.h"
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#include <stdint.h>
@@ -30,7 +35,7 @@ template <typename Ret, typename... Params> class function<Ret(Params...)> {
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template <typename Callable>
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LIBC_INLINE static Ret callback_fn(intptr_t callable, Params... params) {
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return (*reinterpret_cast<Callable *>(callable))(
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forward<Params>(params)...);
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cpp::forward<Params>(params)...);
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}
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public:
@@ -42,18 +47,18 @@ template <typename Ret, typename... Params> class function<Ret(Params...)> {
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LIBC_INLINE function(
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Callable &&callable,
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// This is not the copy-constructor.
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enable_if_t<!is_same<remove_cvref_t<Callable>, function>::value> * =
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enable_if_t<!cpp::is_same_v<remove_cvref_t<Callable>, function>> * =
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nullptr,
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// Functor must be callable and return a suitable type.
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enable_if_t<is_void_v<Ret> ||
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is_convertible_v<
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enable_if_t<cpp::is_void_v<Ret> ||
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cpp::is_convertible_v<
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decltype(declval<Callable>()(declval<Params>()...)), Ret>>
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* = nullptr)
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: callback(callback_fn<remove_reference_t<Callable>>),
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: callback(callback_fn<cpp::remove_reference_t<Callable>>),
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callable(reinterpret_cast<intptr_t>(&callable)) {}
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LIBC_INLINE Ret operator()(Params... params) const {
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return callback(callable, forward<Params>(params)...);
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return callback(callable, cpp::forward<Params>(params)...);
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}
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LIBC_INLINE explicit operator bool() const { return callback; }

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