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.jet.lang.resolve;
018
019 import org.jetbrains.annotations.NotNull;
020 import org.jetbrains.annotations.Nullable;
021 import org.jetbrains.jet.lang.descriptors.*;
022 import org.jetbrains.jet.lang.descriptors.annotations.AnnotationDescriptor;
023 import org.jetbrains.jet.lang.descriptors.impl.*;
024 import org.jetbrains.jet.lang.resolve.name.Name;
025 import org.jetbrains.jet.lang.resolve.scopes.receivers.ClassReceiver;
026 import org.jetbrains.jet.lang.resolve.scopes.receivers.ExtensionReceiver;
027 import org.jetbrains.jet.lang.resolve.scopes.receivers.ReceiverValue;
028 import org.jetbrains.jet.lang.types.JetType;
029 import org.jetbrains.jet.lang.types.lang.KotlinBuiltIns;
030
031 import java.util.Collections;
032
033 import static org.jetbrains.jet.lang.descriptors.ReceiverParameterDescriptor.NO_RECEIVER_PARAMETER;
034 import static org.jetbrains.jet.lang.resolve.DescriptorUtils.getDefaultConstructorVisibility;
035
036 public class DescriptorFactory {
037 public static final Name VALUE_OF_METHOD_NAME = Name.identifier("valueOf");
038 public static final Name VALUES_METHOD_NAME = Name.identifier("values");
039
040 private DescriptorFactory() {
041 }
042
043 @NotNull
044 public static PropertySetterDescriptorImpl createDefaultSetter(@NotNull PropertyDescriptor propertyDescriptor) {
045 return createSetter(propertyDescriptor, true);
046 }
047
048 @NotNull
049 public static PropertySetterDescriptorImpl createSetter(@NotNull PropertyDescriptor propertyDescriptor, boolean isDefault) {
050 PropertySetterDescriptorImpl setterDescriptor = new PropertySetterDescriptorImpl(
051 propertyDescriptor, Collections.<AnnotationDescriptor>emptyList(), propertyDescriptor.getModality(),
052 propertyDescriptor.getVisibility(),
053 !isDefault, isDefault, CallableMemberDescriptor.Kind.DECLARATION);
054 setterDescriptor.initializeDefault();
055 return setterDescriptor;
056 }
057
058 @NotNull
059 public static PropertyGetterDescriptorImpl createDefaultGetter(@NotNull PropertyDescriptor propertyDescriptor) {
060 return createGetter(propertyDescriptor, true);
061 }
062
063 @NotNull
064 public static PropertyGetterDescriptorImpl createGetter(@NotNull PropertyDescriptor propertyDescriptor, boolean isDefault) {
065 return new PropertyGetterDescriptorImpl(
066 propertyDescriptor, Collections.<AnnotationDescriptor>emptyList(), propertyDescriptor.getModality(),
067 propertyDescriptor.getVisibility(),
068 !isDefault, isDefault, CallableMemberDescriptor.Kind.DECLARATION);
069 }
070
071 @NotNull
072 public static ConstructorDescriptorImpl createPrimaryConstructorForObject(@NotNull ClassDescriptor containingClass) {
073 ConstructorDescriptorImpl constructorDescriptor =
074 new ConstructorDescriptorImpl(containingClass, Collections.<AnnotationDescriptor>emptyList(), true);
075 constructorDescriptor.initialize(Collections.<TypeParameterDescriptor>emptyList(),
076 Collections.<ValueParameterDescriptor>emptyList(),
077 getDefaultConstructorVisibility(containingClass));
078 return constructorDescriptor;
079 }
080
081 @NotNull
082 public static SimpleFunctionDescriptor createEnumClassObjectValuesMethod(
083 @NotNull ClassDescriptor classObject,
084 @NotNull JetType returnType
085 ) {
086 SimpleFunctionDescriptorImpl values =
087 new SimpleFunctionDescriptorImpl(classObject, Collections.<AnnotationDescriptor>emptyList(), VALUES_METHOD_NAME,
088 CallableMemberDescriptor.Kind.DECLARATION);
089 return values.initialize(null, classObject.getThisAsReceiverParameter(), Collections.<TypeParameterDescriptor>emptyList(),
090 Collections.<ValueParameterDescriptor>emptyList(),
091 returnType, Modality.FINAL,
092 Visibilities.PUBLIC, false);
093 }
094
095 @NotNull
096 public static SimpleFunctionDescriptor createEnumClassObjectValueOfMethod(
097 @NotNull ClassDescriptor classObject,
098 @NotNull JetType returnType
099 ) {
100 SimpleFunctionDescriptorImpl values =
101 new SimpleFunctionDescriptorImpl(classObject, Collections.<AnnotationDescriptor>emptyList(), VALUE_OF_METHOD_NAME,
102 CallableMemberDescriptor.Kind.DECLARATION);
103 ValueParameterDescriptor parameterDescriptor = new ValueParameterDescriptorImpl(
104 values,
105 0,
106 Collections.<AnnotationDescriptor>emptyList(),
107 Name.identifier("value"),
108 KotlinBuiltIns.getInstance().getStringType(),
109 false,
110 null);
111 return values.initialize(null, classObject.getThisAsReceiverParameter(),
112 Collections.<TypeParameterDescriptor>emptyList(),
113 Collections.singletonList(parameterDescriptor),
114 returnType, Modality.FINAL,
115 Visibilities.PUBLIC, false);
116 }
117
118 @Nullable
119 public static ReceiverParameterDescriptor createReceiverParameterForCallable(
120 @NotNull CallableDescriptor owner,
121 @Nullable JetType receiverParameterType
122 ) {
123 return receiverParameterType == null
124 ? NO_RECEIVER_PARAMETER
125 : new ReceiverParameterDescriptorImpl(owner, receiverParameterType, new ExtensionReceiver(owner, receiverParameterType));
126 }
127
128 @NotNull
129 public static ReceiverParameterDescriptor createLazyReceiverParameterDescriptor(@NotNull final ClassDescriptor classDescriptor) {
130 return new AbstractReceiverParameterDescriptor() {
131 private ClassReceiver value;
132
133 @NotNull
134 @Override
135 public JetType getType() {
136 // This must be lazy, thus the inner class
137 return classDescriptor.getDefaultType();
138 }
139
140 @NotNull
141 @Override
142 public ReceiverValue getValue() {
143 if (value == null) {
144 value = new ClassReceiver(classDescriptor);
145 }
146 return value;
147 }
148
149 @NotNull
150 @Override
151 public DeclarationDescriptor getContainingDeclaration() {
152 return classDescriptor;
153 }
154
155 @Override
156 public String toString() {
157 return "class " + classDescriptor.getName() + "::this";
158 }
159 };
160 }
161 }