//===--------------------------------------------------------------------===//
/// Used to construct an instance of 'ImplTy::KeyTy' if there is an
- /// 'ImplTy::getKey' function for the provided arguments.
+ /// 'ImplTy::getKey' function for the provided arguments. Otherwise, then we
+ /// try to directly construct the 'ImplTy::KeyTy' with the provided arguments.
template <typename ImplTy, typename... Args>
- static std::enable_if_t<
- llvm::is_detected<detail::has_impltype_getkey_t, ImplTy, Args...>::value,
- typename ImplTy::KeyTy>
- getKey(Args &&...args) {
- return ImplTy::getKey(args...);
- }
- /// If there is no 'ImplTy::getKey' method, then we try to directly construct
- /// the 'ImplTy::KeyTy' with the provided arguments.
- template <typename ImplTy, typename... Args>
- static std::enable_if_t<
- !llvm::is_detected<detail::has_impltype_getkey_t, ImplTy, Args...>::value,
- typename ImplTy::KeyTy>
- getKey(Args &&...args) {
- return typename ImplTy::KeyTy(args...);
+ static typename ImplTy::KeyTy getKey(Args &&...args) {
+ if constexpr (llvm::is_detected<detail::has_impltype_getkey_t, ImplTy,
+ Args...>::value)
+ return ImplTy::getKey(args...);
+ else
+ return typename ImplTy::KeyTy(args...);
}
//===--------------------------------------------------------------------===//
// Key Hashing
//===--------------------------------------------------------------------===//
- /// Used to generate a hash for the 'ImplTy::KeyTy' of a storage instance if
- /// there is an 'ImplTy::hashKey' overload for 'DerivedKey'.
- template <typename ImplTy, typename DerivedKey>
- static std::enable_if_t<
- llvm::is_detected<detail::has_impltype_hash_t, ImplTy, DerivedKey>::value,
- ::llvm::hash_code>
- getHash(const DerivedKey &derivedKey) {
- return ImplTy::hashKey(derivedKey);
- }
- /// If there is no 'ImplTy::hashKey' default to using the 'llvm::DenseMapInfo'
- /// definition for 'DerivedKey' for generating a hash.
+ /// Used to generate a hash for the `ImplTy` of a storage instance if
+ /// there is a `ImplTy::hashKey. Otherwise, if there is no `ImplTy::hashKey`
+ /// then default to using the 'llvm::DenseMapInfo' definition for
+ /// 'DerivedKey' for generating a hash.
template <typename ImplTy, typename DerivedKey>
- static std::enable_if_t<!llvm::is_detected<detail::has_impltype_hash_t,
- ImplTy, DerivedKey>::value,
- ::llvm::hash_code>
- getHash(const DerivedKey &derivedKey) {
- return DenseMapInfo<DerivedKey>::getHashValue(derivedKey);
+ static ::llvm::hash_code getHash(const DerivedKey &derivedKey) {
+ if constexpr (llvm::is_detected<detail::has_impltype_hash_t, ImplTy,
+ DerivedKey>::value)
+ return ImplTy::hashKey(derivedKey);
+ else
+ return DenseMapInfo<DerivedKey>::getHashValue(derivedKey);
}
};
} // namespace mlir