47 lines
1.3 KiB
C++
47 lines
1.3 KiB
C++
#pragma once
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#include "ast/ast.hpp"
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#include "ast/errors/error.hpp"
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#include "ast/program.hpp"
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#include "ast/statements/expression.hpp"
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#include "ast/statements/let.hpp"
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#include "ast/statements/return.hpp"
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#include "lexer/lexer.hpp"
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#include "token/token.hpp"
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#include <functional>
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#include <vector>
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namespace parser {
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using prefix_parse_fn = std::function<ast::expression*()>;
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using infix_parse_fn = std::function<ast::expression*(ast::expression*)>;
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struct parser {
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parser(lexer::lexer& lexer);
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~parser();
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std::vector<ast::error::error*> errors;
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ast::program* parse_program();
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private:
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lexer::lexer& lexer;
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token::token current, next;
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std::unordered_map<token::type, prefix_parse_fn> prefix_parse_fns;
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std::unordered_map<token::type, infix_parse_fn> infix_parse_fns;
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void next_token();
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ast::statement* parse_statement();
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ast::expression* parse_expression();
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ast::let_stmt* parse_let();
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ast::return_stmt* parse_return();
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ast::expression_stmt* parse_expression_stmt();
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bool expect_next(token::type);
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void next_error(token::type);
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void register_prefix(token::type, prefix_parse_fn);
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void register_infix(token::type, infix_parse_fn);
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};
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} // namespace parser
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