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.psi;
018
019 import com.intellij.extapi.psi.PsiFileBase;
020 import com.intellij.lang.ASTNode;
021 import com.intellij.lang.FileASTNode;
022 import com.intellij.openapi.fileTypes.FileType;
023 import com.intellij.psi.FileViewProvider;
024 import com.intellij.psi.PsiClass;
025 import com.intellij.psi.PsiClassOwner;
026 import com.intellij.psi.PsiElementVisitor;
027 import com.intellij.psi.stubs.StubElement;
028 import com.intellij.psi.util.PsiTreeUtil;
029 import org.jetbrains.annotations.NotNull;
030 import org.jetbrains.annotations.Nullable;
031 import org.jetbrains.jet.JetNodeTypes;
032 import org.jetbrains.jet.lang.psi.stubs.KotlinFileStub;
033 import org.jetbrains.jet.lang.psi.stubs.elements.JetPlaceHolderStubElementType;
034 import org.jetbrains.jet.lang.psi.stubs.elements.JetStubElementTypes;
035 import org.jetbrains.jet.lang.resolve.name.FqName;
036 import org.jetbrains.jet.plugin.JetFileType;
037 import org.jetbrains.jet.plugin.JetLanguage;
038
039 import java.util.Arrays;
040 import java.util.Collections;
041 import java.util.List;
042
043 public class JetFile extends PsiFileBase implements JetDeclarationContainer, JetAnnotated, JetElement, PsiClassOwner {
044
045 private final boolean isCompiled;
046
047 public JetFile(FileViewProvider viewProvider, boolean compiled) {
048 super(viewProvider, JetLanguage.INSTANCE);
049 this.isCompiled = compiled;
050 }
051
052 @Override
053 public FileASTNode getNode() {
054 return super.getNode();
055 }
056
057 public boolean isCompiled() {
058 return isCompiled;
059 }
060
061 @Override
062 @NotNull
063 public FileType getFileType() {
064 return JetFileType.INSTANCE;
065 }
066
067 @Override
068 public String toString() {
069 return "JetFile: " + getName();
070 }
071
072 @NotNull
073 @Override
074 public List<JetDeclaration> getDeclarations() {
075 KotlinFileStub stub = getStub();
076 if (stub != null) {
077 return Arrays.asList(stub.getChildrenByType(JetStubElementTypes.DECLARATION_TYPES, JetDeclaration.ARRAY_FACTORY));
078 }
079 return PsiTreeUtil.getChildrenOfTypeAsList(this, JetDeclaration.class);
080 }
081
082 @Nullable
083 public JetImportList getImportList() {
084 return findChildByTypeOrClass(JetStubElementTypes.IMPORT_LIST, JetImportList.class);
085 }
086
087 @Nullable
088 public JetFileAnnotationList getFileAnnotationList() {
089 return findChildByTypeOrClass(JetStubElementTypes.FILE_ANNOTATION_LIST, JetFileAnnotationList.class);
090 }
091
092 @Nullable
093 public <T extends JetElementImplStub<? extends StubElement<?>>> T findChildByTypeOrClass(
094 @NotNull JetPlaceHolderStubElementType<T> elementType,
095 @NotNull Class<T> elementClass
096 ) {
097 KotlinFileStub stub = getStub();
098 if (stub != null) {
099 StubElement<T> importListStub = stub.findChildStubByType(elementType);
100 return importListStub != null ? importListStub.getPsi() : null;
101 }
102 return findChildByClass(elementClass);
103 }
104
105 @NotNull
106 public List<JetImportDirective> getImportDirectives() {
107 JetImportList importList = getImportList();
108 return importList != null ? importList.getImports() : Collections.<JetImportDirective>emptyList();
109 }
110
111 @Nullable
112 public JetImportDirective findImportByAlias(@NotNull String name) {
113 for (JetImportDirective directive : getImportDirectives()) {
114 if (name.equals(directive.getAliasName())) {
115 return directive;
116 }
117 }
118 return null;
119 }
120
121 // scripts have no package directive, all other files must have package directives
122 @Nullable
123 public JetPackageDirective getPackageDirective() {
124 KotlinFileStub stub = getStub();
125 if (stub != null) {
126 StubElement<JetPackageDirective> packageDirectiveStub = stub.findChildStubByType(JetStubElementTypes.PACKAGE_DIRECTIVE);
127 return packageDirectiveStub != null ? packageDirectiveStub.getPsi() : null;
128 }
129 ASTNode ast = getNode().findChildByType(JetNodeTypes.PACKAGE_DIRECTIVE);
130 return ast != null ? (JetPackageDirective) ast.getPsi() : null;
131 }
132
133 @Deprecated // getPackageFqName should be used instead
134 @Override
135 @NotNull
136 public String getPackageName() {
137 return getPackageFqName().asString();
138 }
139
140 @NotNull
141 public FqName getPackageFqName() {
142 KotlinFileStub stub = getStub();
143 if (stub != null) {
144 return stub.getPackageFqName();
145 }
146 return getPackageFqNameByTree();
147 }
148
149 @NotNull
150 public FqName getPackageFqNameByTree() {
151 JetPackageDirective packageDirective = getPackageDirective();
152 if (packageDirective == null) {
153 return FqName.ROOT;
154 }
155 return packageDirective.getFqName();
156 }
157
158 @Override
159 @Nullable
160 public KotlinFileStub getStub() {
161 return (KotlinFileStub) super.getStub();
162 }
163
164 @NotNull
165 @Override
166 public PsiClass[] getClasses() {
167 return PsiClass.EMPTY_ARRAY;
168 }
169
170 @Override
171 public void setPackageName(String packageName) { }
172
173 // SCRIPT: find script in file
174 @Nullable
175 public JetScript getScript() {
176 return PsiTreeUtil.getChildOfType(this, JetScript.class);
177 }
178
179 public boolean isScript() {
180 KotlinFileStub stub = getStub();
181 if (stub != null) {
182 return stub.isScript();
183 }
184 return isScriptByTree();
185 }
186
187 public boolean isScriptByTree() {
188 return getScript() != null;
189 }
190
191 @NotNull
192 @Override
193 public String getName() {
194 return super.getName(); // TODO
195 }
196
197 @Override
198 public void accept(@NotNull PsiElementVisitor visitor) {
199 if (visitor instanceof JetVisitor) {
200 accept((JetVisitor) visitor, null);
201 }
202 else {
203 visitor.visitFile(this);
204 }
205 }
206
207 @NotNull
208 @Override
209 public JetFile getContainingJetFile() {
210 return this;
211 }
212
213 @Override
214 public <D> void acceptChildren(@NotNull JetTreeVisitor<D> visitor, D data) {
215 JetPsiUtil.visitChildren(this, visitor, data);
216 }
217
218 @Override
219 public <R, D> R accept(@NotNull JetVisitor<R, D> visitor, D data) {
220 return visitor.visitJetFile(this, data);
221 }
222
223 @NotNull
224 @Override
225 public List<JetAnnotation> getAnnotations() {
226 JetFileAnnotationList fileAnnotationList = getFileAnnotationList();
227 if (fileAnnotationList == null) return Collections.emptyList();
228
229 return fileAnnotationList.getAnnotations();
230 }
231
232 @NotNull
233 @Override
234 public List<JetAnnotationEntry> getAnnotationEntries() {
235 JetFileAnnotationList fileAnnotationList = getFileAnnotationList();
236 if (fileAnnotationList == null) return Collections.emptyList();
237
238 return fileAnnotationList.getAnnotationEntries();
239 }
240 }