mirror of
https://github.com/SerenityOS/serenity.git
synced 2026-11-07 12:38:38 -10:00
Lucas Chollet
f4bde6ab14
The latest version of Clang got better at detecting unused templates. It detected one truly unused template in our codebase. The rest are either from templated functions that are not always used (depending on the compile-time configuration) or from templated functions that are incorrectly annotated with static.
110 lines
2.6 KiB
C++
110 lines
2.6 KiB
C++
/*
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* Copyright (c) 2021-2022, Matthew Olsson <[email protected]>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Debug.h>
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#include <AK/DeprecatedFlyString.h>
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#include <AK/Format.h>
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#include <AK/RefCounted.h>
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#include <AK/SourceLocation.h>
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#include <LibPDF/Error.h>
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#include <LibPDF/Forward.h>
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#ifdef PDF_DEBUG
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template<PDF::IsObject T>
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char const* object_name()
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{
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# define ENUMERATE_TYPE(class_name, snake_name) \
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if constexpr (IsSame<PDF::class_name, T>) { \
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return #class_name; \
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}
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ENUMERATE_OBJECT_TYPES(ENUMERATE_TYPE)
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# undef ENUMERATE_TYPE
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VERIFY_NOT_REACHED();
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}
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#endif
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namespace PDF {
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class Object : public RefCounted<Object> {
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public:
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virtual ~Object() = default;
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[[nodiscard]] ALWAYS_INLINE u32 generation_index() const { return m_generation_index; }
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ALWAYS_INLINE void set_generation_index(u32 generation_index) { m_generation_index = generation_index; }
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template<IsObject T>
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bool is() const
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requires(!IsSame<T, Object>)
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{
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#define ENUMERATE_TYPE(class_name, snake_name) \
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if constexpr (IsSame<class_name, T>) { \
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return is_##snake_name(); \
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}
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ENUMERATE_OBJECT_TYPES(ENUMERATE_TYPE)
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#undef ENUMERATE_TYPE
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VERIFY_NOT_REACHED();
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}
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template<IsObject T>
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[[nodiscard]] ALWAYS_INLINE NonnullRefPtr<T> cast(
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#ifdef PDF_DEBUG
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SourceLocation loc = SourceLocation::current()
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#endif
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)
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requires(!IsSame<T, Object>)
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{
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#ifdef PDF_DEBUG
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if (!is<T>()) {
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dbgln("{} invalid cast from {} to {}", loc, type_name(), object_name<T>());
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VERIFY_NOT_REACHED();
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}
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#endif
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return NonnullRefPtr<T>(static_cast<T&>(*this));
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}
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virtual char const* type_name() const = 0;
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virtual ByteString to_byte_string(int indent) const = 0;
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protected:
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#define ENUMERATE_TYPE(_, name) \
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virtual bool is_##name() const \
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{ \
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return false; \
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}
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ENUMERATE_OBJECT_TYPES(ENUMERATE_TYPE)
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#undef ENUMERATE_TYPE
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private:
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u32 m_generation_index { 0 };
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};
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}
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namespace AK {
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template<PDF::IsObject T>
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struct Formatter<T> : Formatter<StringView> {
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ErrorOr<void> format(FormatBuilder& builder, T const& object)
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{
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return Formatter<StringView>::format(builder, object.to_byte_string(0));
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}
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};
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template<PDF::IsObject T>
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struct Formatter<NonnullRefPtr<T>> : Formatter<T> {
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ErrorOr<void> format(FormatBuilder& builder, NonnullRefPtr<T> const& object)
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{
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return Formatter<T>::format(builder, *object);
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}
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};
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}
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