org.jetbrains.jet.codegen.intrinsics.IdentityEquals 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.jet.codegen.ExpressionCodegen;
import org.jetbrains.jet.codegen.StackValue;
import org.jetbrains.jet.lang.psi.JetBinaryExpression;
import org.jetbrains.jet.lang.psi.JetCallExpression;
import org.jetbrains.jet.lang.psi.JetExpression;
import org.jetbrains.jet.lexer.JetTokens;
import org.jetbrains.org.objectweb.asm.Type;
import java.util.List;
import static org.jetbrains.jet.lang.resolve.java.AsmTypeConstants.OBJECT_TYPE;
public class IdentityEquals extends LazyIntrinsicMethod {
@NotNull
@Override
public StackValue generateImpl(
@NotNull ExpressionCodegen codegen,
@NotNull Type returnType,
PsiElement element,
@NotNull List arguments,
@NotNull StackValue receiver
) {
StackValue left;
StackValue right;
if (element instanceof JetCallExpression) {
left = receiver;
right = codegen.gen(arguments.get(0));
}
else {
assert element instanceof JetBinaryExpression;
JetBinaryExpression e = (JetBinaryExpression) element;
left = codegen.gen(e.getLeft());
right = codegen.gen(e.getRight());
}
return StackValue.cmp(JetTokens.EQEQEQ, OBJECT_TYPE, left, right);
}
}