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 CaptureAsInferredTypeArgument { 22 interface Lib<T extends @Nullable Object> {} 23 useImplicitlyObjectBounded(Lib<T> l)24 <T> void useImplicitlyObjectBounded(Lib<T> l); 25 useExplicitlyObjectBounded(Lib<T> l)26 <T extends Object> void useExplicitlyObjectBounded(Lib<T> l); 27 useUnspecBounded(Lib<T> l)28 <T extends @NullnessUnspecified Object> void useUnspecBounded(Lib<T> l); 29 useUnionNullBounded(Lib<T> l)30 <T extends @Nullable Object> void useUnionNullBounded(Lib<T> l); 31 objectBounded(Lib<? extends Object> l)32 default void objectBounded(Lib<? extends Object> l) { 33 useImplicitlyObjectBounded(l); 34 useExplicitlyObjectBounded(l); 35 useUnspecBounded(l); 36 useUnionNullBounded(l); 37 } 38 unspecBounded(Lib<? extends @NullnessUnspecified Object> l)39 default void unspecBounded(Lib<? extends @NullnessUnspecified Object> l) { 40 // jspecify_nullness_not_enough_information 41 useImplicitlyObjectBounded(l); 42 // jspecify_nullness_not_enough_information 43 useExplicitlyObjectBounded(l); 44 // jspecify_nullness_not_enough_information 45 useUnspecBounded(l); 46 useUnionNullBounded(l); 47 } 48 implicitlyUnionNullBounded(Lib<?> l)49 default void implicitlyUnionNullBounded(Lib<?> l) { 50 // jspecify_nullness_mismatch 51 useImplicitlyObjectBounded(l); 52 // jspecify_nullness_mismatch 53 useExplicitlyObjectBounded(l); 54 // jspecify_nullness_not_enough_information 55 useUnspecBounded(l); 56 useUnionNullBounded(l); 57 } 58 explicitlyUnionNullBounded(Lib<? extends @Nullable Object> l)59 default void explicitlyUnionNullBounded(Lib<? extends @Nullable Object> l) { 60 // jspecify_nullness_mismatch 61 useImplicitlyObjectBounded(l); 62 // jspecify_nullness_mismatch 63 useExplicitlyObjectBounded(l); 64 // jspecify_nullness_not_enough_information 65 useUnspecBounded(l); 66 useUnionNullBounded(l); 67 } 68 } 69