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.annotations.Nullable;
022    import org.jetbrains.asm4.Type;
023    import org.jetbrains.asm4.commons.InstructionAdapter;
024    import org.jetbrains.jet.codegen.ExpressionCodegen;
025    import org.jetbrains.jet.codegen.StackValue;
026    import org.jetbrains.jet.codegen.state.GenerationState;
027    import org.jetbrains.jet.lang.descriptors.CallableDescriptor;
028    import org.jetbrains.jet.lang.psi.JetCallExpression;
029    import org.jetbrains.jet.lang.psi.JetExpression;
030    import org.jetbrains.jet.lang.resolve.BindingContext;
031    import org.jetbrains.jet.lang.resolve.calls.model.ResolvedCall;
032    import org.jetbrains.jet.lang.types.JetType;
033    
034    import java.util.List;
035    
036    public class EnumValues implements IntrinsicMethod {
037        @Override
038        public StackValue generate(
039                ExpressionCodegen codegen, InstructionAdapter v, @NotNull Type expectedType, @Nullable PsiElement element,
040                @Nullable List<JetExpression> arguments, StackValue receiver, @NotNull GenerationState state
041        ) {
042            JetCallExpression call = (JetCallExpression) element;
043            ResolvedCall<? extends CallableDescriptor> resolvedCall =
044                    codegen.getBindingContext().get(BindingContext.RESOLVED_CALL, call.getCalleeExpression());
045            assert resolvedCall != null;
046            CallableDescriptor resultingDescriptor = resolvedCall.getResultingDescriptor();
047            JetType returnType = resultingDescriptor.getReturnType();
048            assert returnType != null;
049            Type type = state.getTypeMapper().mapType(returnType);
050            v.invokestatic(type.getElementType().getInternalName(), "values", "()" + type);
051            StackValue.onStack(type).put(expectedType, v);
052            return StackValue.onStack(expectedType);
053        }
054    }