VarDecl.hpp

#ifndef ALPHA_VAR_DECL_HPP
#define ALPHA_VAR_DECL_HPP

#include <memory>
#include "Decl.hpp"
#include "types.hpp"

#include "Expr.hpp"

enum class BitSize : u16_t {
    B_8 = 8,
    B_16 = 16,
    B_32 = 32,
    B_64 = 64,
    B_128 = 128
};

class VarDecl : public Decl {
private:
    const u16_t _bit_size;

    u32_t _stack_offset;
    i32_t _base_offset;

    bool _mut;

    std::unique_ptr<const Expr> _expr;

public:
    explicit VarDecl(const Expr*, bool mut = true, BitSize size = BitSize::B_32);
    virtual ~VarDecl() { }

    bool isMutable() const {
        return _mut;
    }

    u16_t sizeInBit() const {
        return _bit_size;
    }

    void setStackOffset(u32_t offset) {
        _stack_offset = offset;
    }

    void setBaseOffset(u32_t offset) {
        _base_offset = offset;
    }

    u32_t getStackOffset() const {
        return _stack_offset;
    }

    u32_t getBaseOffset() const {
        return _base_offset;
    }

    virtual void eval(std::ostream&) const override;
};

#endif