| /** |
| * Copyright (C) 2008 Google Inc. |
| * |
| * 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 com.google.inject.internal; |
| |
| import com.google.inject.Scope; |
| import static com.google.inject.internal.util.Preconditions.checkNotNull; |
| import com.google.inject.spi.ScopeBinding; |
| import java.lang.annotation.Annotation; |
| |
| /** |
| * Handles {@code Binder.bindScope} commands. |
| * |
| * @author crazybob@google.com (Bob Lee) |
| * @author jessewilson@google.com (Jesse Wilson) |
| */ |
| final class ScopeBindingProcessor extends AbstractProcessor { |
| |
| ScopeBindingProcessor(Errors errors) { |
| super(errors); |
| } |
| |
| @Override public Boolean visit(ScopeBinding command) { |
| Scope scope = command.getScope(); |
| Class<? extends Annotation> annotationType = command.getAnnotationType(); |
| |
| if (!Annotations.isScopeAnnotation(annotationType)) { |
| errors.withSource(annotationType).missingScopeAnnotation(); |
| // Go ahead and bind anyway so we don't get collateral errors. |
| } |
| |
| if (!Annotations.isRetainedAtRuntime(annotationType)) { |
| errors.withSource(annotationType) |
| .missingRuntimeRetention(command.getSource()); |
| // Go ahead and bind anyway so we don't get collateral errors. |
| } |
| |
| Scope existing = injector.state.getScope(checkNotNull(annotationType, "annotation type")); |
| if (existing != null) { |
| errors.duplicateScopes(existing, annotationType, scope); |
| } else { |
| injector.state.putAnnotation(annotationType, checkNotNull(scope, "scope")); |
| } |
| |
| return true; |
| } |
| } |