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.intrinsics;
018
019import com.intellij.psi.PsiElement;
020import org.jetbrains.annotations.NotNull;
021import org.jetbrains.asm4.Type;
022import org.jetbrains.asm4.commons.InstructionAdapter;
023import org.jetbrains.jet.codegen.ExpressionCodegen;
024import org.jetbrains.jet.codegen.StackValue;
025import org.jetbrains.jet.codegen.state.GenerationState;
026import org.jetbrains.jet.lang.psi.JetBinaryExpression;
027import org.jetbrains.jet.lang.psi.JetExpression;
028
029import java.util.List;
030
031public class RangeTo implements IntrinsicMethod {
032
033    public RangeTo() {
034    }
035
036    @Override
037    public StackValue generate(
038            ExpressionCodegen codegen,
039            InstructionAdapter v,
040            @NotNull Type expectedType,
041            PsiElement element,
042            List<JetExpression> arguments,
043            StackValue receiver,
044            @NotNull GenerationState state
045    ) {
046        if (arguments.size() == 1) {
047            Type leftType = receiver.type;
048            Type rightType = codegen.expressionType(arguments.get(0));
049            receiver.put(leftType, v);
050            codegen.gen(arguments.get(0), rightType);
051            v.invokestatic("jet/runtime/Ranges", "rangeTo",
052                           "(" + receiver.type.getDescriptor() + leftType.getDescriptor() + ")" + expectedType.getDescriptor());
053            return StackValue.onStack(expectedType);
054        }
055        else {
056            JetBinaryExpression expression = (JetBinaryExpression) element;
057            Type leftType = codegen.expressionType(expression.getLeft());
058            Type rightType = codegen.expressionType(expression.getRight());
059            //            if (JetTypeMapper.isIntPrimitive(leftType)) {
060            codegen.gen(expression.getLeft(), leftType);
061            codegen.gen(expression.getRight(), rightType);
062            v.invokestatic("jet/runtime/Ranges", "rangeTo",
063                           "(" + leftType.getDescriptor() + rightType.getDescriptor() + ")" + expectedType.getDescriptor());
064            return StackValue.onStack(expectedType);
065            //            }
066            //            else {
067            //                throw new UnsupportedOperationException("ranges are only supported for int objects");
068            //            }
069        }
070    }
071}