001    /*
002     * Copyright 2010-2015 JetBrains s.r.o.
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     * http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    
017    package org.jetbrains.kotlin.psi.stubs.elements;
018    
019    import com.intellij.psi.stubs.StubElement;
020    import com.intellij.psi.stubs.StubInputStream;
021    import com.intellij.psi.stubs.StubOutputStream;
022    import com.intellij.util.io.StringRef;
023    import org.jetbrains.annotations.NonNls;
024    import org.jetbrains.annotations.NotNull;
025    import org.jetbrains.kotlin.psi.KtTypeParameter;
026    import org.jetbrains.kotlin.psi.stubs.KotlinTypeParameterStub;
027    import org.jetbrains.kotlin.psi.stubs.impl.KotlinTypeParameterStubImpl;
028    import org.jetbrains.kotlin.types.Variance;
029    
030    import java.io.IOException;
031    
032    public class KtTypeParameterElementType extends KtStubElementType<KotlinTypeParameterStub, KtTypeParameter> {
033        public KtTypeParameterElementType(@NotNull @NonNls String debugName) {
034            super(debugName, KtTypeParameter.class, KotlinTypeParameterStub.class);
035        }
036    
037        @Override
038        public KotlinTypeParameterStub createStub(@NotNull KtTypeParameter psi, StubElement parentStub) {
039            return new KotlinTypeParameterStubImpl(parentStub, StringRef.fromString(psi.getName()),
040                                                   psi.getVariance() == Variance.IN_VARIANCE, psi.getVariance() == Variance.OUT_VARIANCE);
041        }
042    
043        @Override
044        public void serialize(@NotNull KotlinTypeParameterStub stub, @NotNull StubOutputStream dataStream) throws IOException {
045            dataStream.writeName(stub.getName());
046            dataStream.writeBoolean(stub.isInVariance());
047            dataStream.writeBoolean(stub.isOutVariance());
048        }
049    
050        @NotNull
051        @Override
052        public KotlinTypeParameterStub deserialize(@NotNull StubInputStream dataStream, StubElement parentStub) throws IOException {
053            StringRef name = dataStream.readName();
054            boolean isInVariance = dataStream.readBoolean();
055            boolean isOutVariance = dataStream.readBoolean();
056    
057            return new KotlinTypeParameterStubImpl(parentStub, name, isInVariance, isOutVariance);
058        }
059    }