/*
 * Copyright (c) 2024 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

function foo<T extends "abc"| "ff">(a: T) {
    let b: "abc"| "ff" = a
    b = "ff"
    return b
}

function main(): void {
    foo<"abc">("ff");
}

/* @@? 23:16 Error TypeError: Type '"ff"' is not compatible with type '"abc"' at index 1  */
/* @@? 23:5 Error TypeError: No matching call signature for foo("ff")  */