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.resolve;
018
019 import org.jetbrains.annotations.NotNull;
020 import org.jetbrains.annotations.Nullable;
021 import org.jetbrains.kotlin.builtins.KotlinBuiltIns;
022 import org.jetbrains.kotlin.descriptors.*;
023 import org.jetbrains.kotlin.descriptors.annotations.Annotated;
024 import org.jetbrains.kotlin.descriptors.annotations.AnnotationDescriptor;
025 import org.jetbrains.kotlin.descriptors.annotations.AnnotationWithTarget;
026 import org.jetbrains.kotlin.descriptors.annotations.Annotations;
027 import org.jetbrains.kotlin.incremental.components.LookupLocation;
028 import org.jetbrains.kotlin.name.FqName;
029 import org.jetbrains.kotlin.name.FqNameUnsafe;
030 import org.jetbrains.kotlin.name.Name;
031 import org.jetbrains.kotlin.name.SpecialNames;
032 import org.jetbrains.kotlin.resolve.constants.ConstantValue;
033 import org.jetbrains.kotlin.resolve.constants.StringValue;
034 import org.jetbrains.kotlin.resolve.scopes.DescriptorKindFilter;
035 import org.jetbrains.kotlin.resolve.scopes.MemberScope;
036 import org.jetbrains.kotlin.types.ErrorUtils;
037 import org.jetbrains.kotlin.types.KotlinType;
038 import org.jetbrains.kotlin.types.LazyType;
039 import org.jetbrains.kotlin.types.TypeConstructor;
040 import org.jetbrains.kotlin.types.checker.KotlinTypeChecker;
041
042 import java.util.*;
043
044 import static org.jetbrains.kotlin.builtins.KotlinBuiltIns.isAny;
045 import static org.jetbrains.kotlin.descriptors.CallableMemberDescriptor.Kind.*;
046 import static org.jetbrains.kotlin.resolve.descriptorUtil.DescriptorUtilsKt.getBuiltIns;
047
048 public class DescriptorUtils {
049 public static final Name ENUM_VALUES = Name.identifier("values");
050 public static final Name ENUM_VALUE_OF = Name.identifier("valueOf");
051 public static final FqName JVM_NAME = new FqName("kotlin.jvm.JvmName");
052 public static final FqName VOLATILE = new FqName("kotlin.jvm.Volatile");
053 public static final FqName SYNCHRONIZED = new FqName("kotlin.jvm.Synchronized");
054
055 private DescriptorUtils() {
056 }
057
058 @Nullable
059 public static ReceiverParameterDescriptor getDispatchReceiverParameterIfNeeded(@NotNull DeclarationDescriptor containingDeclaration) {
060 if (containingDeclaration instanceof ClassDescriptor) {
061 ClassDescriptor classDescriptor = (ClassDescriptor) containingDeclaration;
062 return classDescriptor.getThisAsReceiverParameter();
063 }
064 else if (containingDeclaration instanceof ScriptDescriptor) {
065 ScriptDescriptor scriptDescriptor = (ScriptDescriptor) containingDeclaration;
066 return scriptDescriptor.getThisAsReceiverParameter();
067 }
068 return null;
069 }
070
071 /**
072 * Descriptor may be local itself or have a local ancestor
073 */
074 public static boolean isLocal(@NotNull DeclarationDescriptor descriptor) {
075 DeclarationDescriptor current = descriptor;
076 while (current != null) {
077 if (isAnonymousObject(current) || isDescriptorWithLocalVisibility(current)) {
078 return true;
079 }
080 current = current.getContainingDeclaration();
081 }
082 return false;
083 }
084
085 private static boolean isDescriptorWithLocalVisibility(DeclarationDescriptor current) {
086 return current instanceof DeclarationDescriptorWithVisibility &&
087 ((DeclarationDescriptorWithVisibility) current).getVisibility() == Visibilities.LOCAL;
088 }
089
090 @NotNull
091 public static FqNameUnsafe getFqName(@NotNull DeclarationDescriptor descriptor) {
092 FqName safe = getFqNameSafeIfPossible(descriptor);
093 return safe != null ? safe.toUnsafe() : getFqNameUnsafe(descriptor);
094 }
095
096 @NotNull
097 public static FqName getFqNameSafe(@NotNull DeclarationDescriptor descriptor) {
098 FqName safe = getFqNameSafeIfPossible(descriptor);
099 return safe != null ? safe : getFqNameUnsafe(descriptor).toSafe();
100 }
101
102
103 @Nullable
104 private static FqName getFqNameSafeIfPossible(@NotNull DeclarationDescriptor descriptor) {
105 if (descriptor instanceof ModuleDescriptor || ErrorUtils.isError(descriptor)) {
106 return FqName.ROOT;
107 }
108
109 if (descriptor instanceof PackageViewDescriptor) {
110 return ((PackageViewDescriptor) descriptor).getFqName();
111 }
112 else if (descriptor instanceof PackageFragmentDescriptor) {
113 return ((PackageFragmentDescriptor) descriptor).getFqName();
114 }
115
116 return null;
117 }
118
119 @NotNull
120 private static FqNameUnsafe getFqNameUnsafe(@NotNull DeclarationDescriptor descriptor) {
121 DeclarationDescriptor containingDeclaration = descriptor.getContainingDeclaration();
122 assert containingDeclaration != null : "Not package/module descriptor doesn't have containing declaration: " + descriptor;
123 return getFqName(containingDeclaration).child(descriptor.getName());
124 }
125
126 @NotNull
127 public static FqName getFqNameFromTopLevelClass(@NotNull DeclarationDescriptor descriptor) {
128 DeclarationDescriptor containingDeclaration = descriptor.getContainingDeclaration();
129 Name name = descriptor.getName();
130 if (!(containingDeclaration instanceof ClassDescriptor)) {
131 return FqName.topLevel(name);
132 }
133 return getFqNameFromTopLevelClass(containingDeclaration).child(name);
134 }
135
136 public static boolean isTopLevelDeclaration(@NotNull DeclarationDescriptor descriptor) {
137 return descriptor.getContainingDeclaration() instanceof PackageFragmentDescriptor;
138 }
139
140 public static boolean isExtension(@NotNull CallableDescriptor descriptor) {
141 return (descriptor.getExtensionReceiverParameter() != null);
142 }
143
144 public static boolean isOverride(@NotNull CallableMemberDescriptor descriptor) {
145 return !descriptor.getOverriddenDescriptors().isEmpty();
146 }
147
148 /**
149 * @return true iff this is a top-level declaration or a class member with no expected "this" object (e.g. static members in Java,
150 * values() and valueOf() methods of enum classes, etc.)
151 */
152 public static boolean isStaticDeclaration(@NotNull CallableDescriptor descriptor) {
153 if (descriptor instanceof ConstructorDescriptor) return false;
154
155 DeclarationDescriptor container = descriptor.getContainingDeclaration();
156 return container instanceof PackageFragmentDescriptor ||
157 (container instanceof ClassDescriptor && descriptor.getDispatchReceiverParameter() == null);
158 }
159
160 // WARNING! Don't use this method in JVM backend, use JvmCodegenUtil.isCallInsideSameModuleAsDeclared() instead.
161 // The latter handles compilation against compiled part of our module correctly.
162 public static boolean areInSameModule(@NotNull DeclarationDescriptor first, @NotNull DeclarationDescriptor second) {
163 return getContainingModule(first).equals(getContainingModule(second));
164 }
165
166 @Nullable
167 public static <D extends DeclarationDescriptor> D getParentOfType(
168 @Nullable DeclarationDescriptor descriptor,
169 @NotNull Class<D> aClass
170 ) {
171 return getParentOfType(descriptor, aClass, true);
172 }
173
174 @Nullable
175 public static <D extends DeclarationDescriptor> D getParentOfType(
176 @Nullable DeclarationDescriptor descriptor,
177 @NotNull Class<D> aClass,
178 boolean strict
179 ) {
180 if (descriptor == null) return null;
181 if (strict) {
182 descriptor = descriptor.getContainingDeclaration();
183 }
184 while (descriptor != null) {
185 if (aClass.isInstance(descriptor)) {
186 //noinspection unchecked
187 return (D) descriptor;
188 }
189 descriptor = descriptor.getContainingDeclaration();
190 }
191 return null;
192 }
193
194 @NotNull
195 public static ModuleDescriptor getContainingModule(@NotNull DeclarationDescriptor descriptor) {
196 ModuleDescriptor module = getContainingModuleOrNull(descriptor);
197 assert module != null : "Descriptor without a containing module: " + descriptor;
198 return module;
199 }
200
201 @Nullable
202 public static ModuleDescriptor getContainingModuleOrNull(@NotNull DeclarationDescriptor descriptor) {
203 while (descriptor != null) {
204 if (descriptor instanceof ModuleDescriptor) {
205 return (ModuleDescriptor) descriptor;
206 }
207 if (descriptor instanceof PackageViewDescriptor) {
208 return ((PackageViewDescriptor) descriptor).getModule();
209 }
210 //noinspection ConstantConditions
211 descriptor = descriptor.getContainingDeclaration();
212 }
213 return null;
214 }
215
216 @Nullable
217 public static ClassDescriptor getContainingClass(@NotNull DeclarationDescriptor descriptor) {
218 DeclarationDescriptor containing = descriptor.getContainingDeclaration();
219 while (containing != null) {
220 if (containing instanceof ClassDescriptor && !isCompanionObject(containing)) {
221 return (ClassDescriptor) containing;
222 }
223 containing = containing.getContainingDeclaration();
224 }
225 return null;
226 }
227
228 public static boolean isAncestor(
229 @Nullable DeclarationDescriptor ancestor,
230 @NotNull DeclarationDescriptor declarationDescriptor,
231 boolean strict
232 ) {
233 if (ancestor == null) return false;
234 DeclarationDescriptor descriptor = strict ? declarationDescriptor.getContainingDeclaration() : declarationDescriptor;
235 while (descriptor != null) {
236 if (ancestor == descriptor) return true;
237 descriptor = descriptor.getContainingDeclaration();
238 }
239 return false;
240 }
241
242 public static boolean isDirectSubclass(@NotNull ClassDescriptor subClass, @NotNull ClassDescriptor superClass) {
243 for (KotlinType superType : subClass.getTypeConstructor().getSupertypes()) {
244 if (isSameClass(superType, superClass.getOriginal())) {
245 return true;
246 }
247 }
248 return false;
249 }
250
251 public static boolean isSubclass(@NotNull ClassDescriptor subClass, @NotNull ClassDescriptor superClass) {
252 return isSubtypeOfClass(subClass.getDefaultType(), superClass.getOriginal());
253 }
254
255 private static boolean isSameClass(@NotNull KotlinType type, @NotNull DeclarationDescriptor other) {
256 DeclarationDescriptor descriptor = type.getConstructor().getDeclarationDescriptor();
257 if (descriptor != null) {
258 DeclarationDescriptor originalDescriptor = descriptor.getOriginal();
259 if (originalDescriptor instanceof ClassifierDescriptor
260 && other instanceof ClassifierDescriptor
261 && ((ClassifierDescriptor) other).getTypeConstructor().equals(
262 ((ClassifierDescriptor) originalDescriptor).getTypeConstructor())) {
263 return true;
264 }
265 }
266 return false;
267 }
268
269 private static boolean isSubtypeOfClass(@NotNull KotlinType type, @NotNull DeclarationDescriptor superClass) {
270 if (isSameClass(type, superClass)) return true;
271 for (KotlinType superType : type.getConstructor().getSupertypes()) {
272 if (isSubtypeOfClass(superType, superClass)) {
273 return true;
274 }
275 }
276 return false;
277 }
278
279 public static boolean isCompanionObject(@Nullable DeclarationDescriptor descriptor) {
280 return isKindOf(descriptor, ClassKind.OBJECT) && ((ClassDescriptor) descriptor).isCompanionObject();
281 }
282
283 public static boolean isAnonymousObject(@NotNull DeclarationDescriptor descriptor) {
284 return isClass(descriptor) && descriptor.getName().equals(SpecialNames.NO_NAME_PROVIDED);
285 }
286
287 public static boolean isNonCompanionObject(@NotNull DeclarationDescriptor descriptor) {
288 return isKindOf(descriptor, ClassKind.OBJECT) && !((ClassDescriptor) descriptor).isCompanionObject();
289 }
290
291 public static boolean isObject(@NotNull DeclarationDescriptor descriptor) {
292 return isKindOf(descriptor, ClassKind.OBJECT);
293 }
294
295 public static boolean isEnumEntry(@NotNull DeclarationDescriptor descriptor) {
296 return isKindOf(descriptor, ClassKind.ENUM_ENTRY);
297 }
298
299 public static boolean isEnumClass(@Nullable DeclarationDescriptor descriptor) {
300 return isKindOf(descriptor, ClassKind.ENUM_CLASS);
301 }
302
303 public static boolean isAnnotationClass(@Nullable DeclarationDescriptor descriptor) {
304 return isKindOf(descriptor, ClassKind.ANNOTATION_CLASS);
305 }
306
307 public static boolean isInterface(@Nullable DeclarationDescriptor descriptor) {
308 return isKindOf(descriptor, ClassKind.INTERFACE);
309 }
310
311 public static boolean isClass(@Nullable DeclarationDescriptor descriptor) {
312 return isKindOf(descriptor, ClassKind.CLASS);
313 }
314
315 private static boolean isKindOf(@Nullable DeclarationDescriptor descriptor, @NotNull ClassKind classKind) {
316 return descriptor instanceof ClassDescriptor && ((ClassDescriptor) descriptor).getKind() == classKind;
317 }
318
319 @NotNull
320 public static List<ClassDescriptor> getSuperclassDescriptors(@NotNull ClassDescriptor classDescriptor) {
321 Collection<KotlinType> superclassTypes = classDescriptor.getTypeConstructor().getSupertypes();
322 List<ClassDescriptor> superClassDescriptors = new ArrayList<ClassDescriptor>();
323 for (KotlinType type : superclassTypes) {
324 ClassDescriptor result = getClassDescriptorForType(type);
325 if (!isAny(result)) {
326 superClassDescriptors.add(result);
327 }
328 }
329 return superClassDescriptors;
330 }
331
332 @NotNull
333 public static KotlinType getSuperClassType(@NotNull ClassDescriptor classDescriptor) {
334 Collection<KotlinType> superclassTypes = classDescriptor.getTypeConstructor().getSupertypes();
335 for (KotlinType type : superclassTypes) {
336 ClassDescriptor superClassDescriptor = getClassDescriptorForType(type);
337 if (superClassDescriptor.getKind() != ClassKind.INTERFACE) {
338 return type;
339 }
340 }
341 return getBuiltIns(classDescriptor).getAnyType();
342 }
343
344 @Nullable
345 public static ClassDescriptor getSuperClassDescriptor(@NotNull ClassDescriptor classDescriptor) {
346 Collection<KotlinType> superclassTypes = classDescriptor.getTypeConstructor().getSupertypes();
347 for (KotlinType type : superclassTypes) {
348 ClassDescriptor superClassDescriptor = getClassDescriptorForType(type);
349 if (superClassDescriptor.getKind() != ClassKind.INTERFACE) {
350 return superClassDescriptor;
351 }
352 }
353 return null;
354 }
355
356 @NotNull
357 public static ClassDescriptor getClassDescriptorForType(@NotNull KotlinType type) {
358 return getClassDescriptorForTypeConstructor(type.getConstructor());
359 }
360
361 @NotNull
362 public static ClassDescriptor getClassDescriptorForTypeConstructor(@NotNull TypeConstructor typeConstructor) {
363 ClassifierDescriptor descriptor = typeConstructor.getDeclarationDescriptor();
364 assert descriptor instanceof ClassDescriptor
365 : "Classifier descriptor of a type should be of type ClassDescriptor: " + typeConstructor;
366 return (ClassDescriptor) descriptor;
367 }
368
369 @NotNull
370 public static Visibility getDefaultConstructorVisibility(@NotNull ClassDescriptor classDescriptor) {
371 ClassKind classKind = classDescriptor.getKind();
372 if (classKind == ClassKind.ENUM_CLASS || classKind.isSingleton() || classDescriptor.getModality() == Modality.SEALED) {
373 return Visibilities.PRIVATE;
374 }
375 if (isAnonymousObject(classDescriptor)) {
376 return Visibilities.DEFAULT_VISIBILITY;
377 }
378 assert classKind == ClassKind.CLASS || classKind == ClassKind.INTERFACE || classKind == ClassKind.ANNOTATION_CLASS;
379 return Visibilities.PUBLIC;
380 }
381
382 // TODO: should be internal
383 @Nullable
384 public static ClassDescriptor getInnerClassByName(@NotNull ClassDescriptor classDescriptor, @NotNull String innerClassName, @NotNull LookupLocation location) {
385 ClassifierDescriptor classifier =
386 classDescriptor.getDefaultType().getMemberScope().getContributedClassifier(Name.identifier(innerClassName), location);
387 assert classifier instanceof ClassDescriptor :
388 "Inner class " + innerClassName + " in " + classDescriptor + " should be instance of ClassDescriptor, but was: "
389 + (classifier == null ? "null" : classifier.getClass());
390 return (ClassDescriptor) classifier;
391 }
392
393 @Nullable
394 public static KotlinType getReceiverParameterType(@Nullable ReceiverParameterDescriptor receiverParameterDescriptor) {
395 return receiverParameterDescriptor == null ? null : receiverParameterDescriptor.getType();
396 }
397
398 /**
399 * @return true if descriptor is a class inside another class and does not have access to the outer class
400 */
401 public static boolean isStaticNestedClass(@NotNull DeclarationDescriptor descriptor) {
402 DeclarationDescriptor containing = descriptor.getContainingDeclaration();
403 return descriptor instanceof ClassDescriptor &&
404 containing instanceof ClassDescriptor &&
405 !((ClassDescriptor) descriptor).isInner();
406 }
407
408 /**
409 * @return true iff {@code descriptor}'s first non-class container is a package
410 */
411 public static boolean isTopLevelOrInnerClass(@NotNull ClassDescriptor descriptor) {
412 DeclarationDescriptor containing = descriptor.getContainingDeclaration();
413 return isTopLevelDeclaration(descriptor) ||
414 containing instanceof ClassDescriptor && isTopLevelOrInnerClass((ClassDescriptor) containing);
415 }
416
417 /**
418 * Given a fake override, finds any declaration of it in the overridden descriptors. Keep in mind that there may be many declarations
419 * of the fake override in the supertypes, this method finds just the only one.
420 * TODO: probably all call-sites of this method are wrong, they should handle all super-declarations
421 */
422 @NotNull
423 public static <D extends CallableMemberDescriptor> D unwrapFakeOverride(@NotNull D descriptor) {
424 while (descriptor.getKind() == CallableMemberDescriptor.Kind.FAKE_OVERRIDE) {
425 Collection<? extends CallableMemberDescriptor> overridden = descriptor.getOverriddenDescriptors();
426 if (overridden.isEmpty()) {
427 throw new IllegalStateException("Fake override should have at least one overridden descriptor: " + descriptor);
428 }
429 //noinspection unchecked
430 descriptor = (D) overridden.iterator().next();
431 }
432 return descriptor;
433 }
434
435 public static boolean shouldRecordInitializerForProperty(@NotNull VariableDescriptor variable, @NotNull KotlinType type) {
436 if (variable.isVar() || type.isError()) return false;
437
438 if (type instanceof LazyType || type.isMarkedNullable()) return true;
439
440 KotlinBuiltIns builtIns = getBuiltIns(variable);
441 return KotlinBuiltIns.isPrimitiveType(type) ||
442 KotlinTypeChecker.DEFAULT.equalTypes(builtIns.getStringType(), type) ||
443 KotlinTypeChecker.DEFAULT.equalTypes(builtIns.getNumber().getDefaultType(), type) ||
444 KotlinTypeChecker.DEFAULT.equalTypes(builtIns.getAnyType(), type);
445 }
446
447 public static boolean classCanHaveAbstractMembers(@NotNull ClassDescriptor classDescriptor) {
448 return classDescriptor.getModality() == Modality.ABSTRACT
449 || classDescriptor.getModality() == Modality.SEALED
450 || classDescriptor.getKind() == ClassKind.ENUM_CLASS;
451 }
452
453 public static boolean classCanHaveOpenMembers(@NotNull ClassDescriptor classDescriptor) {
454 return classDescriptor.getModality() != Modality.FINAL || classDescriptor.getKind() == ClassKind.ENUM_CLASS;
455 }
456
457 @NotNull
458 @SuppressWarnings("unchecked")
459 public static <D extends CallableDescriptor> Set<D> getAllOverriddenDescriptors(@NotNull D f) {
460 Set<D> result = new LinkedHashSet<D>();
461 collectAllOverriddenDescriptors((D) f.getOriginal(), result);
462 return result;
463 }
464
465 private static <D extends CallableDescriptor> void collectAllOverriddenDescriptors(@NotNull D current, @NotNull Set<D> result) {
466 if (result.contains(current)) return;
467 for (CallableDescriptor callableDescriptor : current.getOriginal().getOverriddenDescriptors()) {
468 @SuppressWarnings("unchecked")
469 D descriptor = (D) callableDescriptor;
470 collectAllOverriddenDescriptors(descriptor, result);
471 result.add(descriptor);
472 }
473 }
474
475 @NotNull
476 public static <D extends CallableMemberDescriptor> Set<D> getAllOverriddenDeclarations(@NotNull D memberDescriptor) {
477 Set<D> result = new HashSet<D>();
478 for (CallableMemberDescriptor overriddenDeclaration : memberDescriptor.getOverriddenDescriptors()) {
479 CallableMemberDescriptor.Kind kind = overriddenDeclaration.getKind();
480 if (kind == DECLARATION) {
481 //noinspection unchecked
482 result.add((D) overriddenDeclaration);
483 }
484 else if (kind == DELEGATION || kind == FAKE_OVERRIDE || kind == SYNTHESIZED) {
485 //do nothing
486 }
487 else {
488 throw new AssertionError("Unexpected callable kind " + kind);
489 }
490 //noinspection unchecked
491 result.addAll(getAllOverriddenDeclarations((D) overriddenDeclaration));
492 }
493 return result;
494 }
495
496 public static boolean isSingletonOrAnonymousObject(@NotNull ClassDescriptor classDescriptor) {
497 return classDescriptor.getKind().isSingleton() || isAnonymousObject(classDescriptor);
498 }
499
500 public static boolean canHaveDeclaredConstructors(@NotNull ClassDescriptor classDescriptor) {
501 return !isSingletonOrAnonymousObject(classDescriptor) && !isInterface(classDescriptor);
502 }
503
504 @Nullable
505 public static String getJvmName(@NotNull Annotated annotated) {
506 AnnotationDescriptor jvmNameAnnotation = getJvmNameAnnotation(annotated.getAnnotations());
507 if (jvmNameAnnotation == null) return null;
508
509 Map<ValueParameterDescriptor, ConstantValue<?>> arguments = jvmNameAnnotation.getAllValueArguments();
510 if (arguments.isEmpty()) return null;
511
512 ConstantValue<?> name = arguments.values().iterator().next();
513 if (!(name instanceof StringValue)) return null;
514
515 return ((StringValue) name).getValue();
516 }
517
518 @Nullable
519 public static AnnotationDescriptor getJvmNameAnnotation(@NotNull Annotations annotations) {
520 AnnotationWithTarget jvmName = Annotations.Companion.findAnyAnnotation(annotations, JVM_NAME);
521 return jvmName == null ? null : jvmName.getAnnotation();
522 }
523
524 @Nullable
525 public static AnnotationDescriptor getJvmNameAnnotation(@NotNull Annotated annotated) {
526 return getJvmNameAnnotation(annotated.getAnnotations());
527 }
528
529 @Nullable
530 public static AnnotationDescriptor getVolatileAnnotation(@NotNull Annotated annotated) {
531 return annotated.getAnnotations().findAnnotation(VOLATILE);
532 }
533
534 @Nullable
535 public static AnnotationDescriptor getSynchronizedAnnotation(@NotNull Annotated annotated) {
536 return annotated.getAnnotations().findAnnotation(SYNCHRONIZED);
537 }
538
539 @NotNull
540 public static SourceFile getContainingSourceFile(@NotNull DeclarationDescriptor descriptor) {
541 if (descriptor instanceof PropertySetterDescriptor) {
542 descriptor = ((PropertySetterDescriptor) descriptor).getCorrespondingProperty();
543 }
544
545 if (descriptor instanceof DeclarationDescriptorWithSource) {
546 return ((DeclarationDescriptorWithSource) descriptor).getSource().getContainingFile();
547 }
548
549 return SourceFile.NO_SOURCE_FILE;
550 }
551
552 @NotNull
553 public static Collection<DeclarationDescriptor> getAllDescriptors(@NotNull MemberScope scope) {
554 return scope.getContributedDescriptors(DescriptorKindFilter.ALL, MemberScope.Companion.getALL_NAME_FILTER());
555 }
556 }