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.asJava;
018
019 import com.intellij.lang.Language;
020 import com.intellij.navigation.ItemPresentation;
021 import com.intellij.navigation.ItemPresentationProviders;
022 import com.intellij.psi.*;
023 import com.intellij.psi.impl.PsiClassImplUtil;
024 import com.intellij.psi.impl.light.AbstractLightClass;
025 import com.intellij.psi.impl.light.LightField;
026 import com.intellij.psi.impl.light.LightMethod;
027 import com.intellij.psi.impl.source.ClassInnerStuffCache;
028 import com.intellij.psi.impl.source.PsiExtensibleClass;
029 import com.intellij.psi.scope.PsiScopeProcessor;
030 import com.intellij.psi.util.PsiTreeUtil;
031 import com.intellij.util.Function;
032 import com.intellij.util.containers.ContainerUtil;
033 import kotlin.Function1;
034 import kotlin.KotlinPackage;
035 import org.jetbrains.annotations.NotNull;
036 import org.jetbrains.annotations.Nullable;
037 import org.jetbrains.kotlin.idea.JetLanguage;
038 import org.jetbrains.kotlin.name.FqName;
039 import org.jetbrains.kotlin.psi.*;
040
041 import java.util.List;
042
043 public abstract class KotlinWrappingLightClass extends AbstractLightClass implements KotlinLightClass, PsiExtensibleClass {
044 private final ClassInnerStuffCache myInnersCache = new ClassInnerStuffCache(this);
045
046 protected KotlinWrappingLightClass(PsiManager manager) {
047 super(manager, JetLanguage.INSTANCE);
048 }
049
050 @Nullable
051 @Override
052 public abstract JetClassOrObject getOrigin();
053
054 @NotNull
055 @Override
056 public abstract PsiClass getDelegate();
057
058 @Override
059 @NotNull
060 public PsiField[] getFields() {
061 return myInnersCache.getFields();
062 }
063
064 @Override
065 @NotNull
066 public PsiMethod[] getMethods() {
067 return myInnersCache.getMethods();
068 }
069
070 @Override
071 @NotNull
072 public PsiMethod[] getConstructors() {
073 return myInnersCache.getConstructors();
074 }
075
076 @Override
077 @NotNull
078 public PsiClass[] getInnerClasses() {
079 return myInnersCache.getInnerClasses();
080 }
081
082 @Override
083 @NotNull
084 public PsiField[] getAllFields() {
085 return PsiClassImplUtil.getAllFields(this);
086 }
087
088 @Override
089 @NotNull
090 public PsiMethod[] getAllMethods() {
091 return PsiClassImplUtil.getAllMethods(this);
092 }
093
094 @Override
095 @NotNull
096 public PsiClass[] getAllInnerClasses() {
097 return PsiClassImplUtil.getAllInnerClasses(this);
098 }
099
100 @Override
101 public PsiField findFieldByName(String name, boolean checkBases) {
102 return myInnersCache.findFieldByName(name, checkBases);
103 }
104
105 @Override
106 @NotNull
107 public PsiMethod[] findMethodsByName(String name, boolean checkBases) {
108 return myInnersCache.findMethodsByName(name, checkBases);
109 }
110
111 @Override
112 public PsiClass findInnerClassByName(String name, boolean checkBases) {
113 return myInnersCache.findInnerClassByName(name, checkBases);
114 }
115
116 /**
117 * @see org.jetbrains.kotlin.codegen.binding.CodegenBinding#ENUM_ENTRY_CLASS_NEED_SUBCLASS
118 */
119 @NotNull
120 @Override
121 public List<PsiField> getOwnFields() {
122 return ContainerUtil.map(getDelegate().getFields(), new Function<PsiField, PsiField>() {
123 @Override
124 public PsiField fun(PsiField field) {
125 JetDeclaration declaration = ClsWrapperStubPsiFactory.getOriginalDeclaration(field);
126 if (declaration instanceof JetEnumEntry) {
127 assert field instanceof PsiEnumConstant : "Field delegate should be an enum constant (" + field.getName() + "):\n" +
128 JetPsiUtil.getElementTextWithContext(declaration);
129 JetEnumEntry enumEntry = (JetEnumEntry) declaration;
130 PsiEnumConstant enumConstant = (PsiEnumConstant) field;
131 FqName enumConstantFqName = new FqName(getFqName().asString() + "." + enumEntry.getName());
132 KotlinLightClassForEnumEntry initializingClass =
133 enumEntry.getDeclarations().isEmpty()
134 ? null
135 : new KotlinLightClassForEnumEntry(myManager, enumConstantFqName, enumEntry, enumConstant);
136 return new KotlinLightEnumConstant(myManager, enumEntry, enumConstant, KotlinWrappingLightClass.this, initializingClass);
137 }
138 if (declaration != null) {
139 return new KotlinLightFieldForDeclaration(myManager, declaration, field, KotlinWrappingLightClass.this);
140 }
141 return new LightField(myManager, field, KotlinWrappingLightClass.this);
142 }
143 });
144 }
145
146 @NotNull
147 @Override
148 public List<PsiMethod> getOwnMethods() {
149 return KotlinPackage.map(getDelegate().getMethods(), new Function1<PsiMethod, PsiMethod>() {
150 @Override
151 public PsiMethod invoke(PsiMethod method) {
152 JetDeclaration declaration = ClsWrapperStubPsiFactory.getOriginalDeclaration(method);
153
154 if (declaration != null) {
155 return !isTraitFakeOverride(declaration) ?
156 new KotlinLightMethodForDeclaration(myManager, method, declaration, KotlinWrappingLightClass.this) :
157 new KotlinLightMethodForTraitFakeOverride(myManager, method, declaration, KotlinWrappingLightClass.this);
158 }
159
160 return new LightMethod(myManager, method, KotlinWrappingLightClass.this);
161 }
162 });
163 }
164
165 @Override
166 public boolean processDeclarations(
167 @NotNull PsiScopeProcessor processor, @NotNull ResolveState state, PsiElement lastParent, @NotNull PsiElement place
168 ) {
169 if (isEnum()) {
170 if (!PsiClassImplUtil.processDeclarationsInEnum(processor, state, myInnersCache)) return false;
171 }
172
173 return super.processDeclarations(processor, state, lastParent, place);
174 }
175
176 @Override
177 public String getText() {
178 JetClassOrObject origin = getOrigin();
179 return origin == null ? null : origin.getText();
180 }
181
182 @NotNull
183 @Override
184 public Language getLanguage() {
185 return JetLanguage.INSTANCE;
186 }
187
188 private boolean isTraitFakeOverride(@NotNull JetDeclaration originMethodDeclaration) {
189 if (!(originMethodDeclaration instanceof JetNamedFunction ||
190 originMethodDeclaration instanceof JetPropertyAccessor ||
191 originMethodDeclaration instanceof JetProperty)) {
192 return false;
193 }
194
195 JetClassOrObject parentOfMethodOrigin = PsiTreeUtil.getParentOfType(originMethodDeclaration, JetClassOrObject.class);
196 JetClassOrObject thisClassDeclaration = getOrigin();
197
198 // Method was generated from declaration in some other trait
199 return (parentOfMethodOrigin != null && thisClassDeclaration != parentOfMethodOrigin && JetPsiUtil.isTrait(parentOfMethodOrigin));
200 }
201
202 @Override
203 public ItemPresentation getPresentation() {
204 return ItemPresentationProviders.getItemPresentation(this);
205 }
206 }