| /* |
| * Copyright (C) 2017 The Dagger Authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package dagger.internal.codegen.writing; |
| |
| import com.squareup.javapoet.ClassName; |
| import com.squareup.javapoet.CodeBlock; |
| import dagger.internal.codegen.binding.ComponentRequirement; |
| |
| /** |
| * A factory for expressions of {@link ComponentRequirement}s in the generated component. This is |
| * <em>not</em> a {@link BindingExpression}, since {@link ComponentRequirement}s do not have a |
| * {@link dagger.model.Key}. See {@link ComponentRequirementBindingExpression} for binding |
| * expressions that are themselves a component requirement. |
| */ |
| interface ComponentRequirementExpression { |
| /** |
| * Returns an expression for the {@link ComponentRequirement} to be used when implementing a |
| * component method. This may add a field or method to the component in order to reference the |
| * component requirement outside of the {@code initialize()} methods. |
| */ |
| CodeBlock getExpression(ClassName requestingClass); |
| |
| /** |
| * Returns an expression for the {@link ComponentRequirement} to be used only within {@code |
| * initialize()} methods, where the constructor parameters are available. |
| * |
| * <p>When accessing this expression from a subcomponent, this may cause a field to be initialized |
| * or a method to be added in the component that owns this {@link ComponentRequirement}. |
| */ |
| default CodeBlock getExpressionDuringInitialization(ClassName requestingClass) { |
| return getExpression(requestingClass); |
| } |
| |
| /** |
| * Returns the expression for the {@link ComponentRequirement} to be used when reimplementing a |
| * modifiable module method. |
| */ |
| default CodeBlock getModifiableModuleMethodExpression(ClassName requestingClass) { |
| return CodeBlock.of("return $L", getExpression(requestingClass)); |
| } |
| } |