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ipc_helpers: Add member functions for pushing and popping strongly typed enums
Alleviates the need to static_cast to an enum type at the call sites of the Push and Pop calls. We only allow strongly typed enums, as they have a defined type of int by default if an underlying type isn't explicitly specified, whereas with regular enums, if an underlying type isn't specified, an implementation-defined type is used that can fit all the enumeration values.
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@ -98,6 +98,15 @@ public:
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template <typename First, typename... Other>
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template <typename First, typename... Other>
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void Push(const First& first_value, const Other&... other_values);
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void Push(const First& first_value, const Other&... other_values);
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template <typename T>
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void PushEnum(T value) {
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static_assert(std::is_enum<T>(), "T must be an enum type within a PushEnum call.");
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static_assert(!std::is_convertible<T, int>(),
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"enum type in PushEnum must be a strongly typed enum.");
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static_assert(sizeof(value) < sizeof(u64), "64-bit enums may not be pushed.");
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Push(static_cast<std::underlying_type_t<T>>(value));
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}
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/**
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/**
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* @brief Copies the content of the given trivially copyable class to the buffer as a normal
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* @brief Copies the content of the given trivially copyable class to the buffer as a normal
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* param
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* param
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@ -273,6 +282,15 @@ public:
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template <typename First, typename... Other>
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template <typename First, typename... Other>
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void Pop(First& first_value, Other&... other_values);
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void Pop(First& first_value, Other&... other_values);
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template <typename T>
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T PopEnum() {
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static_assert(std::is_enum<T>(), "T must be an enum type within a PopEnum call.");
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static_assert(!std::is_convertible<T, int>(),
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"enum type in PopEnum must be a strongly typed enum.");
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static_assert(sizeof(T) < sizeof(u64), "64-bit enums cannot be popped.");
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return static_cast<T>(Pop<std::underlying_type_t<T>>());
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}
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/// Equivalent to calling `PopHandles<1>()[0]`.
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/// Equivalent to calling `PopHandles<1>()[0]`.
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Kernel::Handle PopHandle();
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Kernel::Handle PopHandle();
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