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// Copyright 2024-2025, Amlal El Mahrouss (amlal@nekernel.org)
// Licensed under the Apache License, Version 2.0 (See accompanying
// file LICENSE or copy at http://www.apache.org/licenses/LICENSE-2.0)
// Official repository: https://github.com/nekernel-org/nectar
#ifndef NECTAR_COMPILERKIT_CODEGENERATOR_H
#define NECTAR_COMPILERKIT_CODEGENERATOR_H
#include <CompilerKit/Detail/Config.h>
#include <CompilerKit/Macros.h>
#include <CompilerKit/ErrorOr.h>
#include <CompilerKit/Ref.h>
#include <cstring>
#define CK_ASSEMBLY_INTERFACE : public ::CompilerKit::IAssembly
#define CK_ENCODER : public ::CompilerKit::IAssemblyEncoder
namespace CompilerKit {
class AssemblyFactory;
class IAssembly;
/// =========================================================== ///
/// @brief Simple assembly factory
/// =========================================================== ///
class AssemblyFactory final {
public:
explicit AssemblyFactory() = default;
~AssemblyFactory() = default;
NECTAR_COPY_DEFAULT(AssemblyFactory);
public:
enum {
kArchInvalid = 0,
kArchAMD64 = 100,
kArch32x0,
kArch64x0,
kArchRISCV,
kArchPowerPC,
kArchAARCH64,
kArchUnknown,
kArchCount = kArchUnknown - kArchAMD64,
};
Int32 Compile(STLString sourceFile, const Int32& arch);
void Mount(WeakRef<IAssembly> mountPtr);
WeakRef<IAssembly> Unmount() noexcept;
private:
IAssembly* fMounted{nullptr};
};
/// =========================================================== ///
/// @brief Assembly to binary generator class.
/// @note This interface creates according to the CPU target of the child class.
/// =========================================================== ///
class IAssembly {
public:
explicit IAssembly() = default;
virtual ~IAssembly() = default;
NECTAR_COPY_DEFAULT(IAssembly);
virtual UInt32 Arch() noexcept { return AssemblyFactory::kArchAMD64; }
/// =========================================================== ///
/// @brief compile to object file.
/// @note Example C++ -> MASM -> AE object.
/// =========================================================== ///
virtual Int32 CompileToFormat(STLString src, Int32 arch) = 0;
};
/// =========================================================== ///
/// @brief Number casting unions for different sizes.
/// =========================================================== ///
union NumberCastBase {
NumberCastBase() = default;
~NumberCastBase() = default;
static constexpr auto kLimit = 1;
char number[kLimit];
UInt64 raw;
};
union NumberCast64 final {
NumberCast64() = default;
explicit NumberCast64(UInt64 raw) : raw(raw) {}
~NumberCast64() { raw = 0; }
static constexpr auto kLimit = 8;
char number[kLimit];
UInt64 raw;
};
union NumberCast32 final {
NumberCast32() = default;
explicit NumberCast32(UInt32 raw) : raw(raw) {}
~NumberCast32() { raw = 0; }
static constexpr auto kLimit = 4;
char number[kLimit];
UInt32 raw;
};
union NumberCast16 final {
NumberCast16() = default;
explicit NumberCast16(UInt16 raw) : raw(raw) {}
~NumberCast16() { raw = 0; }
static constexpr auto kLimit = 2;
char number[kLimit];
UInt16 raw;
};
union NumberCast8 final {
NumberCast8() = default;
explicit NumberCast8(UInt8 raw) : raw(raw) {}
~NumberCast8() { raw = 0; }
char number;
UInt8 raw;
};
/// =========================================================== ///
/// @brief Assembly encoder interface.
/// =========================================================== ///
class IAssemblyEncoder {
public:
explicit IAssemblyEncoder() = default;
virtual ~IAssemblyEncoder() = default;
NECTAR_COPY_DEFAULT(IAssemblyEncoder);
virtual STLString CheckLine(STLString line, STLString file) = 0;
virtual bool WriteLine(STLString line, STLString file) = 0;
virtual bool WriteNumber(const std::size_t& pos, STLString& from_what) = 0;
};
/// =========================================================== ///
/// @brief Different architecture encoders.
/// =========================================================== ///
#ifdef __ASM_NEED_AMD64__
class EncoderAMD64 final : public IAssemblyEncoder {
public:
explicit EncoderAMD64() = default;
~EncoderAMD64() override = default;
NECTAR_COPY_DEFAULT(EncoderAMD64);
virtual STLString CheckLine(STLString line, STLString file) override;
virtual bool WriteLine(STLString line, STLString file) override;
virtual bool WriteNumber(const std::size_t& pos, STLString& from_what) override;
virtual bool WriteNumber16(const std::size_t& pos, STLString& from_what);
virtual bool WriteNumber32(const std::size_t& pos, STLString& from_what);
virtual bool WriteNumber8(const std::size_t& pos, STLString& from_what);
};
#endif // __ASM_NEED_AMD64__
#ifdef __ASM_NEED_ARM64__
class EncoderARM64 final : public IAssemblyEncoder {
public:
explicit EncoderARM64() = default;
~EncoderARM64() override = default;
NECTAR_COPY_DEFAULT(EncoderARM64);
virtual STLString CheckLine(STLString line, STLString file) override;
virtual bool WriteLine(STLString line, STLString file) override;
virtual bool WriteNumber(const std::size_t& pos, STLString& from_what) override;
};
#endif // __ASM_NEED_ARM64__
#ifdef __ASM_NEED_64x0__
class Encoder64x0 final : public IAssemblyEncoder {
public:
explicit Encoder64x0() = default;
~Encoder64x0() override = default;
NECTAR_COPY_DEFAULT(Encoder64x0);
virtual STLString CheckLine(STLString line, STLString file) override;
virtual bool WriteLine(STLString line, STLString file) override;
virtual bool WriteNumber(const std::size_t& pos, STLString& from_what) override;
};
#endif // __ASM_NEED_64x0__
#ifdef __ASM_NEED_32x0__
class Encoder32x0 final : public IAssemblyEncoder {
public:
explicit Encoder32x0() = default;
~Encoder32x0() override = default;
NECTAR_COPY_DEFAULT(Encoder32x0);
virtual STLString CheckLine(STLString line, STLString file) override;
virtual bool WriteLine(STLString line, STLString file) override;
virtual bool WriteNumber(const std::size_t& pos, STLString& from_what) override;
};
#endif // __ASM_NEED_32x0__
#ifdef __ASM_NEED_PPC__
class EncoderPowerPC final : public IAssemblyEncoder {
public:
explicit EncoderPowerPC() = default;
~EncoderPowerPC() override = default;
NECTAR_COPY_DEFAULT(EncoderPowerPC);
virtual STLString CheckLine(STLString line, STLString file) override;
virtual bool WriteLine(STLString line, STLString file) override;
virtual bool WriteNumber(const std::size_t& pos, STLString& from_what) override;
};
#endif // __ASM_NEED_32x0__
} // namespace CompilerKit
#endif // NECTAR_COMPILERKIT_CODEGENERATOR_H
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