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.codegen;
018    
019    import org.jetbrains.annotations.NotNull;
020    import org.jetbrains.jet.lang.descriptors.*;
021    import org.jetbrains.jet.lang.descriptors.annotations.Annotations;
022    import org.jetbrains.jet.lang.descriptors.impl.SimpleFunctionDescriptorImpl;
023    import org.jetbrains.jet.lang.descriptors.impl.TypeParameterDescriptorImpl;
024    import org.jetbrains.jet.lang.resolve.DescriptorUtils;
025    import org.jetbrains.jet.lang.resolve.name.Name;
026    import org.jetbrains.jet.lang.types.JetType;
027    
028    import java.util.ArrayList;
029    import java.util.List;
030    
031    import static org.jetbrains.jet.lang.descriptors.ReceiverParameterDescriptor.NO_RECEIVER_PARAMETER;
032    
033    public class AccessorForFunctionDescriptor extends SimpleFunctionDescriptorImpl {
034        public AccessorForFunctionDescriptor(
035                @NotNull FunctionDescriptor descriptor,
036                @NotNull DeclarationDescriptor containingDeclaration,
037                int index
038        ) {
039            super(containingDeclaration, null, Annotations.EMPTY,
040                  Name.identifier((descriptor instanceof ConstructorDescriptor ? "$init" : descriptor.getName()) + "$b$" + index),
041                  Kind.DECLARATION);
042    
043            initialize(DescriptorUtils.getReceiverParameterType(descriptor.getReceiverParameter()),
044                       descriptor instanceof ConstructorDescriptor ? NO_RECEIVER_PARAMETER : descriptor.getExpectedThisObject(),
045                       copyTypeParameters(descriptor),
046                       copyValueParameters(descriptor),
047                       descriptor.getReturnType(),
048                       Modality.FINAL,
049                       Visibilities.INTERNAL);
050        }
051    
052        @NotNull
053        private List<TypeParameterDescriptor> copyTypeParameters(@NotNull FunctionDescriptor descriptor) {
054            List<TypeParameterDescriptor> typeParameters = descriptor.getTypeParameters();
055            List<TypeParameterDescriptor> result = new ArrayList<TypeParameterDescriptor>(typeParameters.size());
056            for (TypeParameterDescriptor typeParameter : typeParameters) {
057                TypeParameterDescriptorImpl copy = TypeParameterDescriptorImpl.createForFurtherModification(
058                        this, typeParameter.getAnnotations(), typeParameter.isReified(),
059                        typeParameter.getVariance(), typeParameter.getName(), typeParameter.getIndex()
060                );
061                for (JetType upperBound : typeParameter.getUpperBounds()) {
062                    copy.addUpperBound(upperBound);
063                }
064                copy.setInitialized();
065                result.add(copy);
066            }
067            return result;
068        }
069    
070        @NotNull
071        private List<ValueParameterDescriptor> copyValueParameters(@NotNull FunctionDescriptor descriptor) {
072            List<ValueParameterDescriptor> valueParameters = descriptor.getValueParameters();
073            List<ValueParameterDescriptor> result = new ArrayList<ValueParameterDescriptor>(valueParameters.size());
074            for (ValueParameterDescriptor valueParameter : valueParameters) {
075                result.add(valueParameter.copy(this, valueParameter.getName()));
076            }
077            return result;
078        }
079    }