1 /* 2 * Copyright (C) 2016 The Dagger 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 17 package dagger.internal.codegen.javapoet; 18 19 import static dagger.internal.codegen.xprocessing.JavaPoetExt.avoidClashesWithNestedClasses; 20 21 import androidx.room.compiler.processing.XTypeElement; 22 import com.google.errorprone.annotations.CanIgnoreReturnValue; 23 import com.squareup.javapoet.TypeSpec; 24 25 /** Convenience methods for use with JavaPoet's {@link TypeSpec}. */ 26 public final class TypeSpecs { 27 28 /** 29 * If {@code supertype} is a class, adds it as a superclass for {@code typeBuilder}; if it is an 30 * interface, adds it as a superinterface. 31 * 32 * @return {@code typeBuilder} 33 */ 34 @CanIgnoreReturnValue addSupertype( TypeSpec.Builder typeBuilder, XTypeElement supertype)35 public static TypeSpec.Builder addSupertype( 36 TypeSpec.Builder typeBuilder, XTypeElement supertype) { 37 if (supertype.isClass()) { 38 return avoidClashesWithNestedClasses( 39 typeBuilder.superclass(supertype.getClassName()), supertype); 40 } else if (supertype.isInterface()) { 41 return avoidClashesWithNestedClasses( 42 typeBuilder.addSuperinterface(supertype.getClassName()), supertype); 43 } 44 throw new AssertionError(supertype + " is neither a class nor an interface."); 45 } 46 TypeSpecs()47 private TypeSpecs() {} 48 } 49