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.intrinsics;
018    
019    import com.intellij.psi.PsiElement;
020    import org.jetbrains.annotations.NotNull;
021    import org.jetbrains.asm4.Type;
022    import org.jetbrains.asm4.commons.InstructionAdapter;
023    import org.jetbrains.jet.codegen.ExpressionCodegen;
024    import org.jetbrains.jet.codegen.PropertyCodegen;
025    import org.jetbrains.jet.codegen.StackValue;
026    import org.jetbrains.jet.codegen.state.GenerationState;
027    import org.jetbrains.jet.lang.psi.JetExpression;
028    import org.jetbrains.jet.lang.resolve.java.AsmTypeConstants;
029    import org.jetbrains.jet.lang.resolve.java.JvmClassName;
030    import org.jetbrains.jet.lang.resolve.java.JvmPrimitiveType;
031    import org.jetbrains.jet.lang.resolve.name.FqName;
032    import org.jetbrains.jet.lang.resolve.name.Name;
033    
034    import java.util.List;
035    
036    public class PropertyOfProgressionOrRange implements IntrinsicMethod {
037        private final FqName ownerClass;
038        private final Name propertyName;
039    
040        public PropertyOfProgressionOrRange(@NotNull FqName ownerClass, @NotNull Name propertyName) {
041            this.ownerClass = ownerClass;
042            this.propertyName = propertyName;
043        }
044    
045        @Override
046        public StackValue generate(
047                ExpressionCodegen codegen,
048                InstructionAdapter v,
049                @NotNull Type expectedType,
050                PsiElement element,
051                List<JetExpression> arguments,
052                StackValue receiver,
053                @NotNull GenerationState state
054        ) {
055            String ownerInternalName = JvmClassName.byFqNameWithoutInnerClasses(this.ownerClass).getInternalName();
056            JvmClassName wrapperClass = JvmPrimitiveType.getByAsmType(expectedType).getWrapper();
057            String getterName = PropertyCodegen.getterName(propertyName);
058    
059            receiver.put(receiver.type, v);
060            v.invokevirtual(ownerInternalName, getterName, "()" + wrapperClass.getDescriptor());
061            StackValue.coerce(wrapperClass.getAsmType(), expectedType, v);
062            return StackValue.onStack(expectedType);
063        }
064    }