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/*
* Copyright (c) 2021, Matthew Olsson <mattco@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Format.h>
#include <AK/RefPtr.h>
#include <AK/String.h>
#include <AK/Variant.h>
#include <LibPDF/Forward.h>
#include <LibPDF/Object.h>
#include <LibPDF/Reference.h>
namespace PDF {
class Value : public Variant<Empty, std::nullptr_t, bool, int, float, Reference, NonnullRefPtr<Object>> {
public:
using Variant::Variant;
template<IsObject T>
Value(RefPtr<T> const& refptr)
: Variant(nullptr)
{
if (refptr)
set<NonnullRefPtr<Object>>(*refptr);
}
[[nodiscard]] String to_string(int indent = 0) const;
[[nodiscard]] ALWAYS_INLINE bool has_number() const { return has<int>() || has<float>(); }
[[nodiscard]] ALWAYS_INLINE bool has_u32() const
{
return has<int>() && get<int>() >= 0;
}
[[nodiscard]] ALWAYS_INLINE bool has_u16() const
{
return has<int>() && get<int>() >= 0 && get<int>() < 65536;
}
[[nodiscard]] ALWAYS_INLINE u32 get_u32() const
{
VERIFY(has_u32());
return get<int>();
}
[[nodiscard]] ALWAYS_INLINE u16 get_u16() const
{
VERIFY(has_u16());
return get<int>();
}
[[nodiscard]] ALWAYS_INLINE int to_int() const
{
if (has<int>())
return get<int>();
return static_cast<int>(get<float>());
}
[[nodiscard]] ALWAYS_INLINE float to_float() const
{
if (has<float>())
return get<float>();
return static_cast<float>(get<int>());
}
[[nodiscard]] ALWAYS_INLINE u32 as_ref_index() const
{
return get<Reference>().as_ref_index();
}
[[nodiscard]] ALWAYS_INLINE u32 as_ref_generation_index() const
{
return get<Reference>().as_ref_generation_index();
}
};
}
namespace AK {
template<>
struct Formatter<PDF::Value> : Formatter<StringView> {
ErrorOr<void> format(FormatBuilder& builder, PDF::Value const& value)
{
return Formatter<StringView>::format(builder, value.to_string());
}
};
}
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