001    /*
002     * Copyright 2010-2014 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.ValueParameterDescriptor;
021    import org.jetbrains.jet.lang.psi.JetExpression;
022    import org.jetbrains.jet.lang.psi.ValueArgument;
023    import org.jetbrains.jet.lang.resolve.calls.model.DefaultValueArgument;
024    import org.jetbrains.jet.lang.resolve.calls.model.ExpressionValueArgument;
025    import org.jetbrains.jet.lang.resolve.calls.model.VarargValueArgument;
026    import org.jetbrains.org.objectweb.asm.Type;
027    
028    import java.util.List;
029    
030    import static org.jetbrains.jet.codegen.AsmUtil.pushDefaultValueOnStack;
031    
032    public class CallBasedArgumentGenerator extends ArgumentGenerator {
033        private final ExpressionCodegen codegen;
034        private final CallGenerator callGenerator;
035        private final List<ValueParameterDescriptor> valueParameters;
036        private final List<Type> valueParameterTypes;
037    
038        public CallBasedArgumentGenerator(
039                @NotNull ExpressionCodegen codegen,
040                @NotNull CallGenerator callGenerator,
041                @NotNull List<ValueParameterDescriptor> valueParameters,
042                @NotNull List<Type> valueParameterTypes
043        ) {
044            this.codegen = codegen;
045            this.callGenerator = callGenerator;
046            this.valueParameters = valueParameters;
047            this.valueParameterTypes = valueParameterTypes;
048    
049            assert valueParameters.size() == valueParameterTypes.size() :
050                    "Value parameters and their types mismatch in sizes: " + valueParameters.size() + " != " + valueParameterTypes.size();
051        }
052    
053        @Override
054        protected void generateExpression(int i, @NotNull ExpressionValueArgument argument) {
055            ValueParameterDescriptor parameter = valueParameters.get(i);
056            Type type = valueParameterTypes.get(i);
057            ValueArgument valueArgument = argument.getValueArgument();
058            assert valueArgument != null;
059            JetExpression argumentExpression = valueArgument.getArgumentExpression();
060            assert argumentExpression != null : valueArgument.asElement().getText();
061            callGenerator.genValueAndPut(parameter, argumentExpression, type);
062        }
063    
064        @Override
065        protected void generateDefault(int i, @NotNull DefaultValueArgument argument) {
066            ValueParameterDescriptor parameter = valueParameters.get(i);
067            Type type = valueParameterTypes.get(i);
068            pushDefaultValueOnStack(type, codegen.v);
069            callGenerator.afterParameterPut(type, null, parameter);
070        }
071    
072        @Override
073        protected void generateVararg(int i, @NotNull VarargValueArgument argument) {
074            ValueParameterDescriptor parameter = valueParameters.get(i);
075            Type type = valueParameterTypes.get(i);
076            codegen.genVarargs(argument, parameter.getType());
077            callGenerator.afterParameterPut(type, null, parameter);
078        }
079    }