1 /* 2 * Copyright 2022 The JSpecify Authors. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 import org.jspecify.annotations.NullMarked; 17 import org.jspecify.annotations.Nullable; 18 import org.jspecify.annotations.NullnessUnspecified; 19 20 @NullMarked 21 abstract class ArraySameType { 22 interface Lib<T> {} 23 useArray(Lib<Object[]> l)24 abstract void useArray(Lib<Object[]> l); 25 useArrayOfUnspec(Lib<@NullnessUnspecified Object[]> l)26 abstract void useArrayOfUnspec(Lib<@NullnessUnspecified Object[]> l); 27 useArrayOfUnionNull(Lib<@Nullable Object[]> l)28 abstract void useArrayOfUnionNull(Lib<@Nullable Object[]> l); 29 client(Lib<Object[]> l)30 void client(Lib<Object[]> l) { 31 useArray(l); 32 // jspecify_nullness_not_enough_information 33 useArrayOfUnspec(l); 34 // jspecify_nullness_mismatch 35 useArrayOfUnionNull(l); 36 } 37 clientUnspec(Lib<@NullnessUnspecified Object[]> l)38 void clientUnspec(Lib<@NullnessUnspecified Object[]> l) { 39 // jspecify_nullness_not_enough_information 40 useArray(l); 41 // jspecify_nullness_not_enough_information 42 useArrayOfUnspec(l); 43 // jspecify_nullness_not_enough_information 44 useArrayOfUnionNull(l); 45 } 46 clientUnionNull(Lib<@Nullable Object[]> l)47 void clientUnionNull(Lib<@Nullable Object[]> l) { 48 // jspecify_nullness_mismatch 49 useArray(l); 50 // jspecify_nullness_not_enough_information 51 useArrayOfUnspec(l); 52 useArrayOfUnionNull(l); 53 } 54 } 55