43 lines
868 B
C++
43 lines
868 B
C++
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#ifndef muz_PARSER_HPP
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#define muz_PARSER_HPP
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#include "commons.hpp"
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#include "Lexer.hpp"
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namespace muz
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{
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MUZ_ERROR(syntax_error);
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/**
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* Build an AST given a token list.
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* @see Node
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* @see Lexer
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**/
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class Parser
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{
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public:
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explicit Parser();
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virtual ~Parser();
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std::shared_ptr<Node> parse(Lexer& lexer);
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private:
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std::vector<std::shared_ptr<Node>> m_tokens;
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size_t m_cursor = 0;
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std::shared_ptr<Node> consume(std::optional<NodeType> type=std::nullopt);
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NodeType peek(size_t lookahead=0) const;
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bool next_is(NodeType type, size_t lookahead=0) const;
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std::shared_ptr<Node> parse_prog();
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std::shared_ptr<Node> parse_instr();
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std::shared_ptr<Node> parse_dir();
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std::shared_ptr<Node> parse_cmd();
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std::shared_ptr<Node> parse_arg();
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std::shared_ptr<Node> parse_literal();
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};
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}
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#endif
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