#include "../ast.h"
#include "../parser.h"

#ifndef PROG_MAX_NODE_SIZE
#define PROG_MAX_NODE_SIZE (1024 * 4)
#endif

void parse_func(parser_t* parser);

void parse_prog(parser_t* parser) {
    /**
     * Program := (Declaration | Definition)*
     * same as
     * Program := Declaration* Definition*
     */
    tok_stream_t *tokbuf = &(parser->tokbuf);
    parser->root = new_ast_node();
    ast_node_t* node;
    parser->root->type = NT_ROOT;
    vector_init(parser->root->root.children);
    while (1) {
        flush_peek_tok(tokbuf);
        if (peek_tok_type(tokbuf) == TOKEN_EOF) {
            break;
        }
        node = parse_decl(parser);
        if (node == NULL) {
            parse_func(parser);
        } else {
            vector_push(parser->root->root.children, node);
        }
    }
    return;
}