| /* |
| * Copyright 2000-2013 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 com.jetbrains.python.psi.stubs; |
| |
| import com.intellij.psi.stubs.StubInputStream; |
| import com.intellij.psi.stubs.StubOutputStream; |
| import com.intellij.util.io.StringRef; |
| import com.jetbrains.python.psi.PyExpression; |
| import com.jetbrains.python.psi.impl.PropertyBunch; |
| import com.intellij.psi.util.QualifiedName; |
| import com.jetbrains.python.psi.impl.stubs.CustomTargetExpressionStub; |
| import com.jetbrains.python.psi.impl.stubs.CustomTargetExpressionStubType; |
| import com.jetbrains.python.psi.impl.stubs.PropertyStubType; |
| import com.jetbrains.python.toolbox.Maybe; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.io.IOException; |
| |
| /** |
| * Packs property description for storage in a stub. |
| * User: dcheryasov |
| * Date: Jun 3, 2010 6:46:01 AM |
| */ |
| public class PropertyStubStorage extends PropertyBunch<String> implements CustomTargetExpressionStub { |
| |
| @NotNull |
| @Override |
| protected Maybe<String> translate(@Nullable PyExpression ref) { |
| if (ref != null) { |
| final String name = ref.getName(); |
| return name != null ? new Maybe<String>(name) : unknown; |
| } |
| return none; |
| } |
| |
| private static final String IMPOSSIBLE_NAME = "#"; |
| |
| private static void writeOne(Maybe<String> what, StubOutputStream stream) throws IOException { |
| if (what.isDefined()) stream.writeName(what.value()); |
| else stream.writeName(IMPOSSIBLE_NAME); |
| } |
| |
| @NotNull |
| @Override |
| public Class<? extends CustomTargetExpressionStubType> getTypeClass() { |
| return PropertyStubType.class; |
| } |
| |
| public void serialize(StubOutputStream stream) throws IOException { |
| writeOne(myGetter, stream); |
| writeOne(mySetter, stream); |
| writeOne(myDeleter, stream); |
| stream.writeName(myDoc); |
| } |
| |
| @Override |
| public QualifiedName getCalleeName() { |
| return null; // ?? |
| } |
| |
| public static PropertyStubStorage deserialize(StubInputStream stream) throws IOException { |
| PropertyStubStorage me = new PropertyStubStorage(); |
| me.myGetter = readOne(stream); |
| me.mySetter = readOne(stream); |
| me.myDeleter = readOne(stream); |
| // |
| StringRef ref = stream.readName(); |
| me.myDoc = ref != null? ref.getString() : null; |
| return me; |
| } |
| |
| private static final Maybe<String> unknown = new Maybe<String>(); |
| private static final Maybe<String> none = new Maybe<String>(null); |
| |
| @Nullable |
| private static Maybe<String> readOne(StubInputStream stream) throws IOException { |
| StringRef ref = stream.readName(); |
| if (ref == null) return none; |
| else { |
| String s = ref.getString(); |
| if (IMPOSSIBLE_NAME.equals(s)) return unknown; |
| else return new Maybe<String>(s); |
| } |
| } |
| |
| @Nullable |
| public static PropertyStubStorage fromCall(@Nullable PyExpression expr) { |
| final PropertyStubStorage prop = new PropertyStubStorage(); |
| final boolean success = fillFromCall(expr, prop); |
| return success? prop : null; |
| } |
| |
| } |