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Eliding length for ":"-ranges is no longer allowed.

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This commit is contained in:
Christoffer Lerno
2023-08-18 22:25:51 +02:00
parent 17f69d8da8
commit d5aebb434c
6 changed files with 39 additions and 10 deletions
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7
src/compiler/parse_expr.c
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@@ -30,6 +30,7 @@ bool parse_current_is_expr(ParseContext *c)
*/
bool parse_range(ParseContext *c, Range *range)
{
SourceSpan start = c->span;
// Insert zero if missing
if (tok_is(c, TOKEN_DOTDOT) || tok_is(c, TOKEN_COLON))
{
@@ -62,6 +63,12 @@ bool parse_range(ParseContext *c, Range *range)
}
// Otherwise we have [1..] or [3:]
if (range->is_len)
{
sema_error_at(extend_span_with_token(start, c->prev_span), "Length-ranges using ':' may not elide the length.");
return false;
}
range->end_from_end = false;
range->end = 0;
return true;