validate(target, propName) {
if (target && propName) {
let validator = { [propName]: { [this.name]: this.config } };
let result;
if (this.name == "async") {
validate.async2.options = {cleanAttributes: false};
result = validate.async2(target, this.config, null, propName)
}
else {
result = validate(target, validator);
if (result) {
let error = cleanResult(result);
result = Promise.resolve(new ValidationError(error));
}
}
return result;
}
throw new Error('Invalid target or property name.');
}