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Enforce void type on accumulatable functions.

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This commit is contained in:
Dale Weiler 2013-10-17 03:39:14 -04:00
parent 2c975bb344
commit 4da820ef61
1 changed files with 11 additions and 1 deletions
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12
parser.c
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@ -3991,11 +3991,21 @@ static bool parse_function_body(parser_t *parser, ast_value *var)
}
/* accumulation? */
if (var->hasvalue) {
if (var->hasvalue && var->expression.vtype == TYPE_FUNCTION) {
ast_value *accum = NULL;
ast_function *previous = NULL;
char acname[1024];
/* only void please */
if (var->expression.next->vtype != TYPE_VOID) {
parseerror(parser, "accumulated function `%s` declared with return type `%s` (accumulated functions must return void)",
var->name,
type_name[var->expression.next->vtype]
);
ast_block_delete(block);
goto enderr;
}
/* generate a new name increasing the accumulation count*/
util_snprintf(acname, sizeof(acname), "$ACCUMULATE_%s_%d", var->name, var->constval.vfunc->accumulation++);
accum = ast_value_new(parser_ctx(parser), acname, ((ast_expression*)var)->vtype);