001    /*
002     * Copyright 2010-2013 JetBrains s.r.o.
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     * http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    
017    package org.jetbrains.jet.lang.resolve.java.scope;
018    
019    import org.jetbrains.annotations.NotNull;
020    import org.jetbrains.annotations.Nullable;
021    import org.jetbrains.jet.lang.descriptors.ClassDescriptor;
022    import org.jetbrains.jet.lang.descriptors.ConstructorDescriptor;
023    import org.jetbrains.jet.lang.resolve.java.JavaSemanticServices;
024    import org.jetbrains.jet.lang.resolve.java.provider.ClassPsiDeclarationProvider;
025    
026    import java.util.Collection;
027    
028    public final class JavaClassNonStaticMembersScope extends JavaClassMembersScope {
029    
030        private Collection<ConstructorDescriptor> constructors = null;
031        private ConstructorDescriptor primaryConstructor = null;
032        @NotNull
033        private final ClassDescriptor descriptor;
034    
035        public JavaClassNonStaticMembersScope(
036                @NotNull ClassDescriptor descriptor,
037                @NotNull ClassPsiDeclarationProvider psiDeclarationProvider,
038                @NotNull JavaSemanticServices semanticServices
039        ) {
040            super(descriptor, psiDeclarationProvider, semanticServices);
041            this.descriptor = descriptor;
042        }
043    
044    
045        @NotNull
046        public Collection<ConstructorDescriptor> getConstructors() {
047            initConstructorsIfNeeded();
048            return constructors;
049        }
050    
051        @Nullable
052        public ConstructorDescriptor getPrimaryConstructor() {
053            initConstructorsIfNeeded();
054            return primaryConstructor;
055        }
056    
057        private void initConstructorsIfNeeded() {
058            if (constructors == null) {
059                constructors = getResolver().resolveConstructors(declarationProvider, descriptor);
060    
061                for (ConstructorDescriptor constructor : constructors) {
062                    if (constructor.isPrimary()) {
063                        if (primaryConstructor != null) {
064                            throw new IllegalStateException(
065                                    "Class has more than one primary constructor: " + primaryConstructor + "\n" + constructor);
066                        }
067                        primaryConstructor = constructor;
068                    }
069                }
070            }
071        }
072    }