org.jetbrains.k2js.translate.intrinsic.operation.CompareToInstrinsic 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.k2js.translate.intrinsic.operation;
import com.google.dart.compiler.backend.js.ast.JsBinaryOperation;
import com.google.dart.compiler.backend.js.ast.JsBinaryOperator;
import com.google.dart.compiler.backend.js.ast.JsExpression;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.jet.lang.descriptors.FunctionDescriptor;
import org.jetbrains.jet.lang.psi.JetBinaryExpression;
import org.jetbrains.jet.lang.types.expressions.OperatorConventions;
import org.jetbrains.k2js.translate.context.TranslationContext;
import org.jetbrains.k2js.translate.operation.OperatorTable;
import org.jetbrains.k2js.translate.utils.JsDescriptorUtils;
import static org.jetbrains.k2js.translate.utils.BindingUtils.getFunctionDescriptorForOperationExpression;
import static org.jetbrains.k2js.translate.utils.PsiUtils.getOperationToken;
public final class CompareToInstrinsic implements BinaryOperationIntrinsic {
@Override
public boolean isApplicable(@NotNull JetBinaryExpression expression, @NotNull TranslationContext context) {
if (!OperatorConventions.COMPARISON_OPERATIONS.contains(getOperationToken(expression))) {
return false;
}
FunctionDescriptor functionDescriptor = getFunctionDescriptorForOperationExpression(context.bindingContext(), expression);
assert functionDescriptor != null;
return JsDescriptorUtils.isStandardDeclaration(functionDescriptor);
}
@NotNull
@Override
public JsExpression apply(@NotNull JetBinaryExpression expression,
@NotNull JsExpression left,
@NotNull JsExpression right,
@NotNull TranslationContext context) {
JsBinaryOperator operator = OperatorTable.getBinaryOperator(getOperationToken(expression));
return new JsBinaryOperation(operator, left, right);
}
}