stmt_t parse_stmt(tokenizer_t t){
struct token tok = cur_tok(t);
switch(tok.kind){
case TOK_SEMICOLON:
return parse_stmt_empty(t);
break;
case TOK_CONTINUE:
return parse_stmt_continue(t);
break;
case TOK_BREAK:
return parse_stmt_break(t);
break;
case TOK_RETURN:
return parse_stmt_return(t);
break;
case TOK_IF:
return parse_stmt_if(t);
break;
case TOK_WHILE:
return parse_stmt_while(t);
break;
case TOK_LBRACE:
return parse_stmt_compound(t);
break;
default:
return parse_stmt_expr(t);
break;
}
return NULL;
}
stmt_t parse_stmt(tokenizer_t t) {
char * filename = cur_tok(t).filename;
int line = cur_tok(t).line_num;
expr_t e;
switch(cur_tok(t).kind) {
case TOK_SEMICOLON:
eat_it(t, TOK_SEMICOLON);
return mk_stmt_empty(filename, line);
break;
case TOK_CONTINUE:
eat_it(t, TOK_CONTINUE);
eat_it(t, TOK_SEMICOLON);
return mk_stmt_continue(filename, line);
break;
case TOK_BREAK:
eat_it(t, TOK_BREAK);
eat_it(t, TOK_SEMICOLON);
return mk_stmt_break(filename, line);
break;
case TOK_RETURN:
eat_it(t, TOK_RETURN);
e = parse_expr(t);
eat_it(t, TOK_SEMICOLON);
return mk_stmt_return(filename, line, e);
break;
case TOK_IF:
return parse_stmt_if(t);
break;
case TOK_WHILE:
return parse_stmt_while(t);
break;
case TOK_LBRACE:
return parse_comp_stmt(t);
break;
default:
e = parse_expr(t);
eat_it(t, TOK_SEMICOLON);
return mk_stmt_expr(filename, line, e);
break;
}
}
