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100 lines
2.8 KiB
100 lines
2.8 KiB
#pragma once
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#include <cstdint>
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#include <functional>
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#include <iostream>
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#include <vector>
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/// <summary>
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/// raw virtual instruction information extracted using lex and yacc...
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/// </summary>
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struct _vinstr_meta
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{
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/// <summary>
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/// virtual instruction name...
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/// </summary>
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std::string name;
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/// <summary>
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/// if the virtual instruction has a second operand or not (imm)...
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/// </summary>
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bool has_imm;
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/// <summary>
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/// the imm if any...
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/// </summary>
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std::uintptr_t imm;
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};
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/// <summary>
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/// raw label containing raw virtual instruction data extracted using lex and yacc...
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/// </summary>
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struct _vlabel_meta
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{
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/// <summary>
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/// label name...
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/// </summary>
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std::string label_name;
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/// <summary>
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/// vector of raw virtual instruction data...
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/// </summary>
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std::vector< _vinstr_meta > vinstrs;
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};
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/// <summary>
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/// used for parse_t::for_each...
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/// </summary>
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using callback_t = std::function< bool( _vlabel_meta * ) >;
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/// <summary>
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/// this singleton class contains all the information for parsed virtual instructions...
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/// </summary>
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class parse_t
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{
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public:
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/// <summary>
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/// gets the one and only instance of this class...
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/// </summary>
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/// <returns>returns a pointer to the one and only instance of this class...</returns>
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static auto get_instance() -> parse_t *;
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/// <summary>
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/// used by yacc file to add new labels...
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/// </summary>
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/// <param name="label_name">label name, no pass by reference since a new std::string object must be
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/// created...</param>
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void add_label( std::string label_name );
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/// <summary>
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/// used by yacc file to add new virtual instruction with no imm...
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/// </summary>
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/// <param name="vinstr_name">virtual instruction name, no pass by reference since a new std::string object must be
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/// created...</param>
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void add_vinstr( std::string vinstr_name );
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/// <summary>
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/// used by yacc file to add new virtual instruction with an imm...
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/// </summary>
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/// <param name="vinstr_name">virtual instruction name, no pass by reference since a new std::string object must
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/// be created...</param>
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/// <param name="imm_val">imm value...</param>
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void add_vinstr( std::string vinstr_name, std::uintptr_t imm_val );
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/// <summary>
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/// used to loop over every single label...
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/// </summary>
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/// <param name="callback">lambda to call back given the label structure...</param>
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/// <returns>returns true if all labels were looped through...</returns>
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bool for_each( callback_t callback );
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private:
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/// <summary>
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/// vector of raw virtual labels...
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/// </summary>
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std::vector< _vlabel_meta > virt_labels;
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/// <summary>
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/// default constructor... private...
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/// </summary>
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parse_t();
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}; |