@NotNull
public Collection<DeclarationDescriptor> lookupDescriptorsForQualifiedExpression(
@NotNull JetQualifiedExpression importedReference,
@NotNull JetScope outerScope,
@NotNull JetScope scopeToCheckVisibility,
@NotNull BindingTrace trace,
@NotNull LookupMode lookupMode,
boolean storeResult) {
JetExpression receiverExpression = importedReference.getReceiverExpression();
Collection<DeclarationDescriptor> declarationDescriptors;
if (receiverExpression instanceof JetQualifiedExpression) {
declarationDescriptors =
lookupDescriptorsForQualifiedExpression(
(JetQualifiedExpression) receiverExpression,
outerScope,
scopeToCheckVisibility,
trace,
lookupMode,
storeResult);
} else {
assert receiverExpression instanceof JetSimpleNameExpression;
declarationDescriptors =
lookupDescriptorsForSimpleNameReference(
(JetSimpleNameExpression) receiverExpression,
outerScope,
scopeToCheckVisibility,
trace,
lookupMode,
true,
storeResult);
}
JetExpression selectorExpression = importedReference.getSelectorExpression();
if (!(selectorExpression instanceof JetSimpleNameExpression)) {
return Collections.emptyList();
}
JetSimpleNameExpression selector = (JetSimpleNameExpression) selectorExpression;
JetSimpleNameExpression lastReference = JetPsiUtil.getLastReference(receiverExpression);
if (lastReference == null
|| !canImportMembersFrom(declarationDescriptors, lastReference, trace, lookupMode)) {
return Collections.emptyList();
}
return lookupSelectorDescriptors(
selector, declarationDescriptors, trace, scopeToCheckVisibility, lookupMode, storeResult);
}
@NotNull
public Collection<DeclarationDescriptor> processImportReference(
@NotNull JetImportDirective importDirective,
@NotNull JetScope scope,
@NotNull JetScope scopeToCheckVisibility,
@Nullable Importer importer,
@NotNull BindingTrace trace,
@NotNull LookupMode lookupMode) {
if (importDirective.isAbsoluteInRootPackage()) {
trace.report(UNSUPPORTED.on(importDirective, "TypeHierarchyResolver")); // TODO
return Collections.emptyList();
}
JetExpression importedReference = importDirective.getImportedReference();
if (importedReference == null) {
return Collections.emptyList();
}
Collection<DeclarationDescriptor> descriptors;
if (importedReference instanceof JetQualifiedExpression) {
// store result only when we find all descriptors, not only classes on the second phase
descriptors =
lookupDescriptorsForQualifiedExpression(
(JetQualifiedExpression) importedReference,
scope,
scopeToCheckVisibility,
trace,
lookupMode,
lookupMode == LookupMode.EVERYTHING);
} else {
assert importedReference instanceof JetSimpleNameExpression;
descriptors =
lookupDescriptorsForSimpleNameReference(
(JetSimpleNameExpression) importedReference,
scope,
scopeToCheckVisibility,
trace,
lookupMode,
true,
lookupMode == LookupMode.EVERYTHING);
}
JetSimpleNameExpression referenceExpression = JetPsiUtil.getLastReference(importedReference);
if (importDirective.isAllUnder()) {
if (!canAllUnderImportFrom(descriptors) && referenceExpression != null) {
ClassDescriptor toReportOn =
KotlinPackage.filterIsInstance(descriptors, ClassDescriptor.class).iterator().next();
trace.report(CANNOT_IMPORT_ON_DEMAND_FROM_SINGLETON.on(referenceExpression, toReportOn));
}
if (referenceExpression == null
|| !canImportMembersFrom(descriptors, referenceExpression, trace, lookupMode)) {
return Collections.emptyList();
}
if (importer != null) {
for (DeclarationDescriptor descriptor : descriptors) {
importer.addAllUnderImport(descriptor);
}
}
return Collections.emptyList();
}
Name aliasName = JetPsiUtil.getAliasName(importDirective);
if (aliasName == null) {
return Collections.emptyList();
}
if (importer != null) {
for (DeclarationDescriptor descriptor : descriptors) {
importer.addAliasImport(descriptor, aliasName);
}
}
return descriptors;
}
