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
017package org.jetbrains.jet.codegen;
018
019import org.jetbrains.asm4.Type;
020import org.jetbrains.jet.lang.descriptors.ValueParameterDescriptor;
021import org.jetbrains.jet.lang.psi.JetParameter;
022
023import static org.jetbrains.jet.lang.resolve.BindingContextUtils.descriptorToDeclaration;
024
025public interface DefaultParameterValueLoader {
026
027    void putValueOnStack(ValueParameterDescriptor descriptor, ExpressionCodegen codegen);
028
029    DefaultParameterValueLoader DEFAULT = new DefaultParameterValueLoader() {
030        @Override
031        public void putValueOnStack(
032                ValueParameterDescriptor descriptor,
033                ExpressionCodegen codegen
034        ) {
035            JetParameter jetParameter = (JetParameter) descriptorToDeclaration(codegen.getBindingContext(), descriptor);
036            assert jetParameter != null;
037            Type propertyType = codegen.typeMapper.mapType(descriptor.getType());
038            codegen.gen(jetParameter.getDefaultValue(), propertyType);
039        }
040    };
041}
042