org.jetbrains.jet.codegen.intrinsics.Equals Maven / Gradle / Ivy
/*
* Copyright 2010-2013 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.jet.codegen.intrinsics;
import com.intellij.psi.PsiElement;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.org.objectweb.asm.Type;
import org.jetbrains.org.objectweb.asm.commons.InstructionAdapter;
import org.jetbrains.jet.codegen.ExpressionCodegen;
import org.jetbrains.jet.codegen.StackValue;
import org.jetbrains.jet.lang.psi.JetCallExpression;
import org.jetbrains.jet.lang.psi.JetExpression;
import org.jetbrains.jet.lexer.JetTokens;
import java.util.List;
import static org.jetbrains.jet.codegen.AsmUtil.genEqualsForExpressionsOnStack;
import static org.jetbrains.jet.lang.resolve.java.AsmTypeConstants.OBJECT_TYPE;
public class Equals extends IntrinsicMethod {
@NotNull
@Override
public Type generateImpl(
@NotNull ExpressionCodegen codegen,
@NotNull InstructionAdapter v,
@NotNull Type returnType,
PsiElement element,
List arguments,
StackValue receiver
) {
StackValue leftExpr;
JetExpression rightExpr;
if (element instanceof JetCallExpression) {
leftExpr = receiver;
rightExpr = arguments.get(0);
}
else {
leftExpr = codegen.gen(arguments.get(0));
rightExpr = arguments.get(1);
}
leftExpr.put(OBJECT_TYPE, v);
codegen.gen(rightExpr).put(OBJECT_TYPE, v);
genEqualsForExpressionsOnStack(v, JetTokens.EQEQ, OBJECT_TYPE, OBJECT_TYPE).put(returnType, v);
return returnType;
}
}