Merge ComponentImplementationBuilder into ComponentImplementation.

This CL moves all of the ComponentImplementation generation logic into ComponentImplementation and deletes ComponentImplementationBuilder. Before this CL, the generation logic was split across both files, making it difficult to find and understand the order in which things are generated into the component TypeSpec.

RELNOTES=N/A
PiperOrigin-RevId: 377978631

java/dagger/internal/codegen/componentgenerator/MethodSignature.java → java/dagger/internal/codegen/binding/MethodSignature.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package dagger.internal.codegen.componentgenerator;
+package dagger.internal.codegen.binding;
 
 import static dagger.internal.codegen.extension.DaggerStreams.toImmutableList;
 
@@ -31,15 +31,15 @@
 
 /** A class that defines proper {@code equals} and {@code hashcode} for a method signature. */
 @AutoValue
-abstract class MethodSignature {
+public abstract class MethodSignature {
 
   abstract String name();
 
   abstract ImmutableList<? extends Equivalence.Wrapper<? extends TypeMirror>> parameterTypes();
 
   abstract ImmutableList<? extends Equivalence.Wrapper<? extends TypeMirror>> thrownTypes();
 
-  static MethodSignature forComponentMethod(
+  public static MethodSignature forComponentMethod(
       ComponentMethodDescriptor componentMethod, DeclaredType componentType, DaggerTypes types) {
     ExecutableType methodType =
         MoreTypes.asExecutable(types.asMemberOf(componentType, componentMethod.methodElement()));

java/dagger/internal/codegen/componentgenerator/ComponentGenerator.java

@@ -26,23 +26,24 @@
 import dagger.internal.codegen.binding.BindingGraph;
 import dagger.internal.codegen.langmodel.DaggerElements;
 import dagger.internal.codegen.writing.ComponentImplementation;
+import java.util.Optional;
 import javax.annotation.processing.Filer;
 import javax.inject.Inject;
 import javax.lang.model.SourceVersion;
 import javax.lang.model.element.Element;
 
 /** Generates the implementation of the abstract types annotated with {@link Component}. */
 final class ComponentGenerator extends SourceFileGenerator<BindingGraph> {
-  private final ComponentImplementationFactory componentImplementationFactory;
+  private final TopLevelImplementationComponent.Factory topLevelImplementationComponentFactory;
 
   @Inject
   ComponentGenerator(
       Filer filer,
       DaggerElements elements,
       SourceVersion sourceVersion,
-      ComponentImplementationFactory componentImplementationFactory) {
+      TopLevelImplementationComponent.Factory topLevelImplementationComponentFactory) {
     super(filer, elements, sourceVersion);
-    this.componentImplementationFactory = componentImplementationFactory;
+    this.topLevelImplementationComponentFactory = topLevelImplementationComponentFactory;
   }
 
   @Override
@@ -53,7 +54,15 @@ public Element originatingElement(BindingGraph input) {
   @Override
   public ImmutableList<TypeSpec.Builder> topLevelTypes(BindingGraph bindingGraph) {
     ComponentImplementation componentImplementation =
-        componentImplementationFactory.createComponentImplementation(bindingGraph);
+        topLevelImplementationComponentFactory
+            .create(bindingGraph)
+            .currentImplementationSubcomponentBuilder()
+            .bindingGraph(bindingGraph)
+            .parentImplementation(Optional.empty())
+            .parentBindingExpressions(Optional.empty())
+            .parentRequirementExpressions(Optional.empty())
+            .build()
+            .componentImplementation();
     verify(
         componentImplementation
             .name()

java/dagger/internal/codegen/componentgenerator/ComponentHjarGenerator.java

@@ -45,6 +45,7 @@
 import dagger.internal.codegen.binding.ComponentCreatorKind;
 import dagger.internal.codegen.binding.ComponentDescriptor;
 import dagger.internal.codegen.binding.ComponentRequirement;
+import dagger.internal.codegen.binding.MethodSignature;
 import dagger.internal.codegen.kotlin.KotlinMetadataUtil;
 import dagger.internal.codegen.langmodel.DaggerElements;
 import dagger.internal.codegen.langmodel.DaggerTypes;