1/* 2 * Copyright (c) 2025 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16class A { 17 constructor(tag: string) { this.tag = tag } 18 toString() { return this.tag } 19 tag: string 20} 21class B extends A { 22 constructor(tag: string) { 23 super(tag) 24 } 25} 26 27function test(f: Function, action: (f: Function) => Any, v: Any) { 28 assertEQ(action(f), v) 29} 30 31function main() { 32 test((a: A) => "" + a, 33 (f) => f.unsafeCall(new B("tag")), 34 "tag" 35 ) 36 test((a: string, b: string) => a + b, 37 (f) => f.unsafeCall("a", "b", "c"), 38 "ab" 39 ) 40 // NOTE(vpukhov): optional arity is not preserved 41 // test((a: string, b?: string) => a + b, 42 // (f) => f.unsafeCall("a"), 43 // "aundefined" 44 // ) 45 test((...a: string[]) => a[0] + a[1], 46 (f) => f.unsafeCall("a", "b"), 47 "ab" 48 ) 49 test((...a: A[]) => "" + a[0] + a[1], 50 (f) => f.unsafeCall(new A("taga"), new B("tagb")), 51 "tagatagb" 52 ) 53 test((p1: A, ...a: A[]) => "" + p1, 54 (f) => f.unsafeCall(new A("1")), 55 "1" 56 ) 57 test((p1: A, ...a: A[]) => "" + p1 + a[0] + a[1], 58 (f) => f.unsafeCall(new A("1"), new A("2"), new A("3")), 59 "123" 60 ) 61} 62