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finished while loops

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Lorenzo Torres 2025-12-03 22:41:55 +01:00
parent 21b43af69d
commit 006015c607
7 changed files with 42 additions and 9 deletions
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31
parser.c
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@ -76,9 +76,9 @@ static void parser_sync(parser *p)
{
case TOKEN_STRUCT:
case TOKEN_ENUM:
case TOKEN_UNION:
case TOKEN_IF:
case TOKEN_LOOP:
case TOKEN_DO:
case TOKEN_RETURN:
case TOKEN_SWITCH:
return;
@ -764,7 +764,6 @@ parse_captures:
}
parse_body:;
printf("%d %d\n", node->expr.fr.capture_len, node->expr.fr.slice_len);
if (node->expr.fr.capture_len != node->expr.fr.slice_len) {
error(p, "invalid number of captures.");
return NULL;
@ -777,13 +776,39 @@ parse_body:;
static ast_node *parse_while(parser *p)
{
u8 flags = 0x0;
if (match(p, TOKEN_WHILE)) {
flags |= LOOP_WHILE;
} else if (match(p, TOKEN_UNTIL)) {
flags |= LOOP_UNTIL;
} else if (!match_peek(p, TOKEN_LCURLY)) {
error(p, "expected `while`, `until` or `{`.");
return NULL;
}
ast_node *condition = parse_expression(p);
//printf("%d %d\n", p->tokens->type, TOKEN_RCURLY);
if (!condition) {
flags |= LOOP_AFTER;
}
ast_node *body = parse_compound(p);
ast_node *node = arena_alloc(p->allocator, sizeof(ast_node));
node->type = NODE_WHILE;
node->expr.whle.body = body;
if (flags & LOOP_AFTER) {
if (match(p, TOKEN_WHILE)) {
flags |= LOOP_WHILE;
condition = parse_expression(p);
} else if (match(p, TOKEN_UNTIL)) {
flags |= LOOP_UNTIL;
condition = parse_expression(p);
} else {
node->expr.whle.condition = NULL;
}
}
node->expr.whle.condition = condition;
return node;
}