diff options
Diffstat (limited to 'api/util.c')
| -rw-r--r-- | api/util.c | 35 |
1 files changed, 33 insertions, 2 deletions
@@ -4,8 +4,7 @@ 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) @@ -13,3 +12,35 @@ UwUVMValue uwuutil_is_type(const char *fnname, UwUVMArgs *args, UwUVMType *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); + } +} |