org.jetbrains.jet.lang.descriptors.impl.AbstractReceiverParameterDescriptor 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.lang.descriptors.impl;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.jet.lang.descriptors.*;
import org.jetbrains.jet.lang.descriptors.annotations.Annotations;
import org.jetbrains.jet.lang.resolve.name.Name;
import org.jetbrains.jet.lang.resolve.scopes.receivers.TransientReceiver;
import org.jetbrains.jet.lang.types.JetType;
import org.jetbrains.jet.lang.types.TypeSubstitutor;
import org.jetbrains.jet.lang.types.Variance;
import java.util.Collections;
import java.util.List;
import java.util.Set;
public abstract class AbstractReceiverParameterDescriptor extends DeclarationDescriptorImpl implements ReceiverParameterDescriptor {
private static final Name RECEIVER_PARAMETER_NAME = Name.special("");
public AbstractReceiverParameterDescriptor() {
super(Annotations.EMPTY, RECEIVER_PARAMETER_NAME);
}
@Nullable
@Override
public ReceiverParameterDescriptor substitute(@NotNull TypeSubstitutor substitutor) {
if (substitutor.isEmpty()) return this;
JetType substitutedType = substitutor.substitute(getType(), Variance.INVARIANT);
if (substitutedType == null) return null;
return new ReceiverParameterDescriptorImpl(getContainingDeclaration(), substitutedType, new TransientReceiver(substitutedType));
}
@Override
public R accept(DeclarationDescriptorVisitor visitor, D data) {
return visitor.visitReceiverParameterDescriptor(this, data);
}
@Nullable
@Override
public ReceiverParameterDescriptor getReceiverParameter() {
return null;
}
@Nullable
@Override
public ReceiverParameterDescriptor getExpectedThisObject() {
return null;
}
@NotNull
@Override
public List getTypeParameters() {
return Collections.emptyList();
}
@Nullable
@Override
public JetType getReturnType() {
return getType();
}
@NotNull
@Override
public List getValueParameters() {
return Collections.emptyList();
}
@Override
public boolean hasStableParameterNames() {
return false;
}
@Override
public boolean hasSynthesizedParameterNames() {
return false;
}
@NotNull
@Override
public Set getOverriddenDescriptors() {
return Collections.emptySet();
}
@NotNull
@Override
public Visibility getVisibility() {
return Visibilities.LOCAL;
}
@NotNull
@Override
public CallableDescriptor getOriginal() {
return this;
}
@NotNull
@Override
public SourceElement getSource() {
return SourceElement.NO_SOURCE;
}
}