40 lines
850 B
C++
40 lines
850 B
C++
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#ifndef wg_PARSER_HPP
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#define wg_PARSER_HPP
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#include "commons.hpp"
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#include "Node.hpp"
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namespace wg
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{
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WG_ERROR(syntax_error);
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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(std::vector<std::shared_ptr<Node>>
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const& tokens);
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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;
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Loc loc() const;
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std::shared_ptr<Node> consume(NodeType type);
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std::shared_ptr<Node> consume();
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bool type_is(NodeType type, int lookahead=0);
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bool type_isnt(NodeType type, int lookahead=0);
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std::shared_ptr<Node> make_node(NodeType type) 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_expr();
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};
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}
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#endif
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