72 lines
1.3 KiB
C++
72 lines
1.3 KiB
C++
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#pragma once
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#include <vector>
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#include "lexer.hpp"
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#include "parser.hpp"
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namespace stela {
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class Command;
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class Interpreter {
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public:
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Interpreter()
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: commands()
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, lexer(*this)
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, parser(lexer, *this)
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, m_location(0)
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{}
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inline int parse()
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{
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this->m_location = 0;
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return this->parser.parse();
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}
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inline void clear()
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{
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this->m_location = 0;
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this->commands.clear();
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}
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std::string to_string() const;
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/// Switch scanner input stream. Default is standard input (std::cin).
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/// It will also reset AST.
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inline void switch_input_stream(std::istream* is)
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{
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this->lexer.switch_streams(is, nullptr);
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this->commands.clear();
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}
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friend class Parser;
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friend class Lexer;
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private:
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inline void add_command(const Command& command)
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{
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this->commands.push_back(command);
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}
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inline void increase_location(unsigned int location)
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{
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this->m_location += location;
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std::cout << "increase_location(): "
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<< location << ", total = " << this->m_location << '\n';
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}
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inline unsigned int location() const
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{
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return this->m_location;
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}
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private:
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Lexer lexer;
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Parser parser;
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std::vector<Command> commands;
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unsigned int m_location;
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};
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}
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