001 /*
002 * Copyright 2010-2013 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.k2js.translate.reference;
018
019 import com.google.dart.compiler.backend.js.ast.JsExpression;
020 import org.jetbrains.annotations.NotNull;
021 import org.jetbrains.annotations.Nullable;
022 import org.jetbrains.jet.lang.descriptors.PropertyDescriptor;
023 import org.jetbrains.jet.lang.descriptors.PropertyGetterDescriptor;
024 import org.jetbrains.jet.lang.descriptors.PropertySetterDescriptor;
025 import org.jetbrains.jet.lang.descriptors.impl.PropertyDescriptorImpl;
026 import org.jetbrains.jet.lang.descriptors.impl.PropertyGetterDescriptorImpl;
027 import org.jetbrains.jet.lang.resolve.DescriptorResolver;
028 import org.jetbrains.jet.lang.resolve.calls.model.ResolvedCall;
029 import org.jetbrains.k2js.translate.context.TranslationContext;
030
031 /**
032 * For properies /w accessors.
033 */
034 public final class KotlinPropertyAccessTranslator extends PropertyAccessTranslator {
035
036 @Nullable
037 private final JsExpression receiver;
038 @NotNull
039 private final PropertyDescriptor propertyDescriptor;
040 @NotNull
041 private final ResolvedCall<?> resolvedCall;
042
043 //TODO: too many params in constructor
044 /*package*/ KotlinPropertyAccessTranslator(@NotNull PropertyDescriptor descriptor,
045 @Nullable JsExpression receiver,
046 @NotNull ResolvedCall<?> resolvedCall,
047 @NotNull TranslationContext context) {
048 super(context);
049 this.receiver = receiver;
050 this.propertyDescriptor = descriptor.getOriginal();
051 this.resolvedCall = resolvedCall;
052 }
053
054 @NotNull
055 @Override
056 public JsExpression translateAsGet() {
057 return translateAsGet(receiver);
058 }
059
060 @Override
061 @NotNull
062 public JsExpression translateAsGet(@Nullable JsExpression receiver) {
063 PropertyGetterDescriptor getter = propertyDescriptor.getGetter();
064 if (getter == null) {
065 //TODO: Temporary hack!!! Rewrite codegen!
066 //Now for consistency we don't create default getter for object declaration property descriptor
067 PropertyGetterDescriptorImpl getterImpl = DescriptorResolver.createDefaultGetter(propertyDescriptor);
068 getterImpl.initialize(propertyDescriptor.getType());
069 ((PropertyDescriptorImpl)propertyDescriptor).initialize(getterImpl, null);
070 getter = getterImpl;
071 }
072 assert getter != null : "Getter for kotlin properties should bot be null.";
073 return callBuilderForAccessor(receiver)
074 .descriptor(getter)
075 .translate();
076 }
077
078 @NotNull
079 @Override
080 public JsExpression translateAsSet(@NotNull JsExpression toSetTo) {
081 return translateAsSet(receiver, toSetTo);
082 }
083
084 @Override
085 @NotNull
086 public JsExpression translateAsSet(@Nullable JsExpression receiver, @NotNull JsExpression toSetTo) {
087 PropertySetterDescriptor setter = propertyDescriptor.getSetter();
088 assert setter != null : "Setter for kotlin properties should not be null.";
089 return callBuilderForAccessor(receiver)
090 .args(toSetTo)
091 .descriptor(setter)
092 .translate();
093 }
094
095 @NotNull
096 private CallBuilder callBuilderForAccessor(@Nullable JsExpression qualifier) {
097 return CallBuilder.build(context())
098 .receiver(qualifier)
099 .resolvedCall(resolvedCall)
100 .type(getCallType());
101 }
102
103
104 @NotNull
105 @Override
106 public CachedAccessTranslator getCached() {
107 return new CachedPropertyAccessTranslator(receiver, this, context());
108 }
109 }