.kotlin.kotlin-compiler.1.3.11.source-code.CompanionObjectIntrinsicAccessTranslator Maven / Gradle / Ivy
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* Copyright 2010-2016 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.
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package org.jetbrains.kotlin.js.translate.reference;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.kotlin.descriptors.ClassDescriptor;
import org.jetbrains.kotlin.descriptors.DeclarationDescriptor;
import org.jetbrains.kotlin.js.backend.ast.JsExpression;
import org.jetbrains.kotlin.js.translate.context.TranslationContext;
import org.jetbrains.kotlin.js.translate.general.AbstractTranslator;
import org.jetbrains.kotlin.js.translate.intrinsic.objects.ObjectIntrinsic;
import org.jetbrains.kotlin.psi.KtReferenceExpression;
import org.jetbrains.kotlin.psi.KtSimpleNameExpression;
import static org.jetbrains.kotlin.js.translate.utils.BindingUtils.getDescriptorForReferenceExpression;
public class CompanionObjectIntrinsicAccessTranslator extends AbstractTranslator implements AccessTranslator {
@NotNull
/*package*/ static CompanionObjectIntrinsicAccessTranslator newInstance(
@NotNull KtSimpleNameExpression expression,
@NotNull TranslationContext context
) {
DeclarationDescriptor referenceDescriptor = getDescriptorForReferenceExpression(context.bindingContext(), expression);
assert referenceDescriptor != null : "JetSimpleName expression must reference a descriptor " + expression.getText();
return new CompanionObjectIntrinsicAccessTranslator(referenceDescriptor, context);
}
/*package*/ static boolean isCompanionObjectReference(
@NotNull KtReferenceExpression expression,
@NotNull TranslationContext context
) {
DeclarationDescriptor descriptor = getDescriptorForReferenceExpression(context.bindingContext(), expression);
return descriptor instanceof ClassDescriptor && context.intrinsics().getObjectIntrinsic((ClassDescriptor) descriptor) != null;
}
@NotNull
private final JsExpression referenceToCompanionObject;
private CompanionObjectIntrinsicAccessTranslator(@NotNull DeclarationDescriptor descriptor, @NotNull TranslationContext context) {
super(context);
this.referenceToCompanionObject = generateReferenceToCompanionObject(descriptor, context);
}
@NotNull
private static JsExpression generateReferenceToCompanionObject(
@NotNull DeclarationDescriptor descriptor,
@NotNull TranslationContext context
) {
ObjectIntrinsic objectIntrinsic = context.intrinsics().getObjectIntrinsic((ClassDescriptor) descriptor);
return objectIntrinsic.apply(context);
}
@Override
@NotNull
public JsExpression translateAsGet() {
return referenceToCompanionObject;
}
@Override
@NotNull
public JsExpression translateAsSet(@NotNull JsExpression toSetTo) {
throw new IllegalStateException("companion object can't be set");
}
@NotNull
@Override
public AccessTranslator getCached() {
return this;
}
}