52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
#ifndef FURC_FRONT_PARSER_HPP
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#define FURC_FRONT_PARSER_HPP
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#include "furc/front/ast.hpp"
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#include "furc/front/lexer.hpp"
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#include "furlang/arena.hpp"
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#include <stdexcept>
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namespace furc {
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class parser {
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public:
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parser(lexer&& lexer, furlang::arena& arena)
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: m_lexer(std::move(lexer)), m_arena(&arena) {}
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~parser() = default;
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parser(parser&&) noexcept = default;
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parser& operator=(parser&&) noexcept = default;
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parser(const parser&) = delete;
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parser& operator=(const parser&) = delete;
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public:
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ast parse();
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private:
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stmt_node* parse_stmt();
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decl_node* parse_decl();
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expr_node* parse_expr();
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ast_type parse_type();
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comp_stmt_node parse_comp();
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expr_node* parse_expr_primary();
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expr_node* parse_expr_unary();
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expr_node* parse_expr_right(expr_node* lhs, std::uint32_t precedence = 15);
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private:
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template <typename... Types>
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token eat_token(Types... types) {
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auto token = m_lexer.next_token();
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if (((token.type == types) || ...)) return token;
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throw std::runtime_error("unexpected token");
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}
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private:
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lexer m_lexer;
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furlang::arena* m_arena;
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};
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} // namespace furc
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#endif // FURC_FRONT_PARSER_HPP
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