uint32_t validateIndex(WrenVM* vm, Value arg, uint32_t count,
const char* argName)
{
if (!validateNum(vm, arg, argName)) return UINT32_MAX;
return validateIndexValue(vm, count, AS_NUM(arg), argName);
}
// Validates that the argument at [argIndex] is an integer within `[0, count)`.
// Also allows negative indices which map backwards from the end. Returns the
// valid positive index value. If invalid, reports an error and returns -1.
static int validateIndex(WrenVM* vm, Value* args, int count, int argIndex,
const char* argName)
{
if (!validateNum(vm, args, argIndex, argName)) return -1;
return validateIndexValue(vm, args, count, AS_NUM(args[argIndex]), argName);
}
bool validateInt(WrenVM* vm, Value arg, const char* argName)
{
// Make sure it's a number first.
if (!validateNum(vm, arg, argName)) return false;
return validateIntValue(vm, AS_NUM(arg), argName);
}
// Validates that the given argument in [args] is an integer. Returns true if
// it is. If not, reports an error and returns false.
static bool validateInt(WrenVM* vm, Value* args, int index, const char* argName)
{
// Make sure it's a number first.
if (!validateNum(vm, args, index, argName)) return false;
return validateIntValue(vm, args, AS_NUM(args[index]), argName);
}
