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.StackValue;
025    import org.jetbrains.jet.codegen.state.GenerationState;
026    import org.jetbrains.jet.lang.psi.JetExpression;
027    
028    import java.util.List;
029    
030    public class Not implements IntrinsicMethod {
031        @Override
032        public StackValue generate(
033                ExpressionCodegen codegen,
034                InstructionAdapter v,
035                @NotNull Type expectedType,
036                PsiElement element,
037                List<JetExpression> arguments,
038                StackValue receiver,
039                @NotNull GenerationState state
040        ) {
041            StackValue stackValue;
042            if (arguments.size() == 1) {
043                stackValue = codegen.gen(arguments.get(0));
044            }
045            else {
046                stackValue = receiver;
047            }
048            stackValue.put(Type.BOOLEAN_TYPE, v);
049            return StackValue.not(StackValue.onStack(Type.BOOLEAN_TYPE));
050        }
051    }