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 interface WildcardBoundWithAnnotations { use(Supplier<? extends T> s, Lib<T> l)22 <T> void use(Supplier<? extends T> s, Lib<T> l); 23 useUnspec(Supplier<? extends @NullnessUnspecified T> s, Lib<T> l)24 <T> void useUnspec(Supplier<? extends @NullnessUnspecified T> s, Lib<T> l); 25 useUnionNull(Supplier<? extends @Nullable T> s, Lib<T> l)26 <T> void useUnionNull(Supplier<? extends @Nullable T> s, Lib<T> l); 27 x0(Supplier<? extends T> s, Lib<T> l)28 default <T> void x0(Supplier<? extends T> s, Lib<T> l) { 29 use(s, l); 30 useUnspec(s, l); 31 useUnionNull(s, l); 32 } 33 x1(Supplier<? extends @NullnessUnspecified T> s, Lib<T> l)34 default <T> void x1(Supplier<? extends @NullnessUnspecified T> s, Lib<T> l) { 35 // jspecify_nullness_not_enough_information 36 use(s, l); 37 // jspecify_nullness_not_enough_information 38 useUnspec(s, l); 39 useUnionNull(s, l); 40 } 41 x2(Supplier<? extends @Nullable T> s, Lib<T> l)42 default <T> void x2(Supplier<? extends @Nullable T> s, Lib<T> l) { 43 // jspecify_nullness_mismatch 44 use(s, l); 45 // jspecify_nullness_not_enough_information 46 useUnspec(s, l); 47 useUnionNull(s, l); 48 } 49 50 interface Supplier<T extends @Nullable Object> {} 51 52 interface Lib<T> {} 53 } 54