/*
 * Copyright (c) 2021-2024 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.
 */

class B<T extends Object> {
    private a0: T;
    constructor(a0: T) {
        this.a0 = a0;
    }
    public f1(): T {
        return this.a0;
    }
}

class A {
    public foo(token: Object) : void {
        let refToken: B<Object> = this.f2() as B<Object>;
    }
    private bar() : void {
        let ref: B<Object> = this.f2() as B<Object>;
        if (ref.f1() == null) {}
    }

    private f2() : Object { return new Object(); }
}