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/*
 * Copyright (C) 2018 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.binding;

import static com.google.common.base.Preconditions.checkNotNull;
import static dagger.internal.codegen.binding.BindingType.PRODUCTION;

import com.google.auto.value.AutoValue;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Iterables;
import dagger.BindsOptionalOf;
import dagger.Module;
import dagger.internal.codegen.model.BindingKind;
import dagger.internal.codegen.model.ComponentPath;
import dagger.internal.codegen.model.DaggerElement;
import dagger.internal.codegen.model.DaggerTypeElement;
import dagger.internal.codegen.model.DependencyRequest;
import dagger.internal.codegen.model.Key;
import dagger.internal.codegen.model.Scope;
import dagger.multibindings.Multibinds;
import java.util.Optional;

/**
 * An implementation of {@link dagger.internal.codegen.model.Binding} that also exposes {@link
 * BindingDeclaration}s associated with the binding.
 */
// TODO(dpb): Consider a supertype of dagger.internal.codegen.model.Binding that
// dagger.internal.codegen.binding.Binding
// could also implement.
@AutoValue
public abstract class BindingNode implements dagger.internal.codegen.model.Binding {
  public static BindingNode create(
      ComponentPath component,
      Binding delegate,
      ImmutableSet multibindingDeclarations,
      ImmutableSet optionalBindingDeclarations,
      ImmutableSet subcomponentDeclarations,
      BindingDeclarationFormatter bindingDeclarationFormatter) {
    BindingNode node =
        new AutoValue_BindingNode(
            component,
            delegate,
            multibindingDeclarations,
            optionalBindingDeclarations,
            subcomponentDeclarations);
    node.bindingDeclarationFormatter = checkNotNull(bindingDeclarationFormatter);
    return node;
  }

  private BindingDeclarationFormatter bindingDeclarationFormatter;

  public abstract Binding delegate();

  public abstract ImmutableSet multibindingDeclarations();

  public abstract ImmutableSet optionalBindingDeclarations();

  public abstract ImmutableSet subcomponentDeclarations();

  /**
   * The elements (other than the binding's {@link #bindingElement()}) that are associated with the
   * binding.
   *
   * 
    *
  • {@linkplain BindsOptionalOf optional binding} declarations *
  • {@linkplain Module#subcomponents() module subcomponent} declarations *
  • {@linkplain Multibinds multibinding} declarations *
*/ public final Iterable associatedDeclarations() { return Iterables.concat( multibindingDeclarations(), optionalBindingDeclarations(), subcomponentDeclarations()); } @Override public Key key() { return delegate().key(); } @Override public ImmutableSet dependencies() { return delegate().dependencies(); } @Override public Optional bindingElement() { return delegate().bindingElement().map(DaggerElement::from); } @Override public Optional contributingModule() { return delegate().contributingModule().map(DaggerTypeElement::from); } @Override public boolean requiresModuleInstance() { return delegate().requiresModuleInstance(); } @Override public Optional scope() { return delegate().scope(); } @Override public boolean isNullable() { return delegate().isNullable(); } @Override public boolean isProduction() { return delegate().bindingType().equals(PRODUCTION); } @Override public BindingKind kind() { return delegate().kind(); } @Override public final String toString() { return bindingDeclarationFormatter.format(delegate()); } }




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