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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "include/token.h"
#include "include/tree.h"
#include "include/util.h"
#include "include/lexer.h"
#include "include/parser.h"
parser_t* parser_init(lexer_t* lexer) {
parser_t* parser;
parser = calloc(1, sizeof(struct PARSER_STRUC));
parser->lexer = lexer;
parser->token = lexer_get_next_token(lexer);
return parser;
}
void parser_destroy(parser_t* parser) { free(parser); }
void parser_token_expect(parser_t* parser, int (*expected_token)(token_t*)) {
expected_token(parser->token)?
parser->token = lexer_get_next_token(parser->lexer):
die(
"unexpected token!\n\ttype: [%s]\n\tvalue: [%s]",
token_get_type(parser->token->type),
parser->token->value
);
}
tree_t* parser_parse(parser_t* parser) { return parser_parse_statements(parser); }
tree_t* parser_parse_statements(parser_t* parser) {
tree_t* comp;
tree_t* statement;
comp = tree_init(TREE_COMP);
comp->data.comp.value = calloc(1, sizeof(struct TREE_STRUC*));
statement = parser_parse_statement(parser);
comp->data.comp.value[0] = statement;
comp->data.comp.size += 1;
while (parser->token->type == TOKEN_STMNT_END) {
statement = parser_parse_statement(parser);
comp->data.comp.value[0] = statement;
comp->data.comp.size += 1;
}
return comp;
}
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