UwUVMValue uwuutil_is_type(const char *fnname, UwUVMArgs *args, UwUVMType *type)
{
- if (args->num < 1)
- error("error: %s requires at least one argument\n", fnname);
+ uwuutil_require_min(fnname, args, 1);
for (size_t i = 0; i < args->num; i++)
if (uwuvm_get_arg(args, i).type != type)
return uwubool_create(true);
}
+
+void uwuutil_require_min(const char *fnname, UwUVMArgs *args, size_t n)
+{
+ if (args->num < n) {
+ if (n == 1)
+ error("type error: %s requires at least one optional argument, but none were given\n", fnname);
+ else
+ error("type error: %s requires at least %d arguments, but only %d were given\n", fnname, n, args->num);
+ }
+}
+
+void uwuutil_require_max(const char *fnname, UwUVMArgs *args, size_t n)
+{
+ if (args->num > n) {
+ if (n == 1)
+ error("type error: %s accepts one optional argument, but %d were given\n", fnname, args->num);
+ else
+ error("type error: %s does not take more than %d arguments, but %d were given\n", fnname, args->num);
+ }
+}
+
+void uwuutil_require_exact(const char *fnname, UwUVMArgs *args, size_t n)
+{
+ if (args->num != n) {
+ if (n == 0)
+ error("type error: %s does not take any arguments, but %d were given\n", fnname, args->num);
+ else if (n == 1)
+ error("type error: %s requires exactly one argument, but %d were given\n", fnname, args->num);
+ else
+ error("type error: %s requires exactly %d arguments, but %d were given\n", fnname, n, args->num);
+ }
+}