001    /*
002     * Copyright 2010-2015 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.kotlin.codegen.intrinsics;
018    
019    import com.intellij.psi.PsiElement;
020    import kotlin.Function1;
021    import kotlin.Unit;
022    import org.jetbrains.annotations.NotNull;
023    import org.jetbrains.annotations.Nullable;
024    import org.jetbrains.kotlin.codegen.Callable;
025    import org.jetbrains.kotlin.codegen.ExpressionCodegen;
026    import org.jetbrains.kotlin.codegen.StackValue;
027    import org.jetbrains.kotlin.psi.JetExpression;
028    import org.jetbrains.org.objectweb.asm.Type;
029    import org.jetbrains.org.objectweb.asm.commons.InstructionAdapter;
030    
031    import java.util.List;
032    
033    public abstract class IntrinsicMethod implements Callable {
034        public StackValue generate(
035                @NotNull final ExpressionCodegen codegen,
036                @NotNull final Type returnType,
037                @Nullable final PsiElement element,
038                @NotNull final List<JetExpression> arguments,
039                @NotNull final StackValue receiver
040        ) {
041            return StackValue.operation(returnType, new Function1<InstructionAdapter, Unit>() {
042                @Override
043                public Unit invoke(InstructionAdapter v) {
044                    Type actualType = generateImpl(codegen, v, returnType, element, arguments, receiver);
045                    StackValue.coerce(actualType, returnType, v);
046                    return Unit.INSTANCE$;
047                }
048            });
049        }
050    
051        @NotNull
052        protected abstract Type generateImpl(
053                @NotNull ExpressionCodegen codegen,
054                @NotNull InstructionAdapter v,
055                @NotNull Type returnType,
056                @Nullable PsiElement element,
057                @NotNull List<JetExpression> arguments,
058                @NotNull StackValue receiver
059        );
060    }