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.org.objectweb.asm.Type;
023    import org.jetbrains.org.objectweb.asm.commons.InstructionAdapter;
024    import org.jetbrains.jet.codegen.Callable;
025    import org.jetbrains.jet.codegen.ExpressionCodegen;
026    import org.jetbrains.jet.codegen.StackValue;
027    import org.jetbrains.jet.lang.psi.JetExpression;
028    
029    import java.util.List;
030    
031    public abstract class IntrinsicMethod implements Callable {
032        public final void generate(
033                @NotNull ExpressionCodegen codegen,
034                @NotNull InstructionAdapter v,
035                @NotNull Type returnType,
036                @Nullable PsiElement element,
037                @Nullable List<JetExpression> arguments,
038                @Nullable StackValue receiver
039        ) {
040            Type actualType = generateImpl(codegen, v, returnType, element, arguments, receiver);
041            StackValue.coerce(actualType, returnType, v);
042        }
043    
044        @NotNull
045        protected abstract Type generateImpl(
046                @NotNull ExpressionCodegen codegen,
047                @NotNull InstructionAdapter v,
048                @NotNull Type returnType,
049                @Nullable PsiElement element,
050                @Nullable List<JetExpression> arguments,
051                @Nullable StackValue receiver
052        );
053    }