1 /* 2 * Copyright 2020 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 class SuperObjectUnionNull { foo( Lib<? super @Nullable Object> lib, Object t, @NullnessUnspecified Object tUnspec, @Nullable Object tUnionNull)22 void foo( 23 Lib<? super @Nullable Object> lib, 24 Object t, 25 @NullnessUnspecified Object tUnspec, 26 @Nullable Object tUnionNull) { 27 lib.useT(t); 28 29 lib.useT(tUnspec); 30 31 lib.useT(tUnionNull); 32 33 // 34 35 lib.useTUnspec(t); 36 37 lib.useTUnspec(tUnspec); 38 39 lib.useTUnspec(tUnionNull); 40 41 // 42 43 lib.useTUnionNull(t); 44 45 lib.useTUnionNull(tUnspec); 46 47 lib.useTUnionNull(tUnionNull); 48 } 49 50 interface Lib<T extends @Nullable Object> { useT(T t)51 void useT(T t); 52 useTUnspec(@ullnessUnspecified T t)53 void useTUnspec(@NullnessUnspecified T t); 54 useTUnionNull(@ullable T t)55 void useTUnionNull(@Nullable T t); 56 } 57 } 58