/**
* Resolve annotations, and check duplicates, answers combined tagBits for recognized standard
* annotations
*/
public static void resolveAnnotations(
BlockScope scope, Annotation[] sourceAnnotations, Binding recipient) {
AnnotationBinding[] annotations = null;
int length = sourceAnnotations == null ? 0 : sourceAnnotations.length;
if (recipient != null) {
switch (recipient.kind()) {
case Binding.PACKAGE:
PackageBinding packageBinding = (PackageBinding) recipient;
if ((packageBinding.tagBits & TagBits.AnnotationResolved) != 0) return;
packageBinding.tagBits |=
(TagBits.AnnotationResolved | TagBits.DeprecatedAnnotationResolved);
break;
case Binding.TYPE:
case Binding.GENERIC_TYPE:
ReferenceBinding type = (ReferenceBinding) recipient;
if ((type.tagBits & TagBits.AnnotationResolved) != 0) return;
type.tagBits |= (TagBits.AnnotationResolved | TagBits.DeprecatedAnnotationResolved);
if (length > 0) {
annotations = new AnnotationBinding[length];
type.setAnnotations(annotations);
}
break;
case Binding.METHOD:
MethodBinding method = (MethodBinding) recipient;
if ((method.tagBits & TagBits.AnnotationResolved) != 0) return;
method.tagBits |= (TagBits.AnnotationResolved | TagBits.DeprecatedAnnotationResolved);
if (length > 0) {
annotations = new AnnotationBinding[length];
method.setAnnotations(annotations);
}
break;
case Binding.FIELD:
FieldBinding field = (FieldBinding) recipient;
if ((field.tagBits & TagBits.AnnotationResolved) != 0) return;
field.tagBits |= (TagBits.AnnotationResolved | TagBits.DeprecatedAnnotationResolved);
if (length > 0) {
annotations = new AnnotationBinding[length];
field.setAnnotations(annotations);
}
break;
case Binding.LOCAL:
LocalVariableBinding local = (LocalVariableBinding) recipient;
if ((local.tagBits & TagBits.AnnotationResolved) != 0) return;
local.tagBits |= (TagBits.AnnotationResolved | TagBits.DeprecatedAnnotationResolved);
if (length > 0) {
annotations = new AnnotationBinding[length];
local.setAnnotations(annotations);
}
break;
default:
return;
}
}
if (sourceAnnotations == null) return;
for (int i = 0; i < length; i++) {
Annotation annotation = sourceAnnotations[i];
final Binding annotationRecipient = annotation.recipient;
if (annotationRecipient != null && recipient != null) {
// only local and field can share annnotations
switch (recipient.kind()) {
case Binding.FIELD:
FieldBinding field = (FieldBinding) recipient;
field.tagBits = ((FieldBinding) annotationRecipient).tagBits;
break;
case Binding.LOCAL:
LocalVariableBinding local = (LocalVariableBinding) recipient;
local.tagBits = ((LocalVariableBinding) annotationRecipient).tagBits;
break;
}
if (annotations != null) {
// need to fill the instances array
annotations[0] = annotation.getCompilerAnnotation();
for (int j = 1; j < length; j++) {
Annotation annot = sourceAnnotations[j];
annotations[j] = annot.getCompilerAnnotation();
}
}
return;
} else {
annotation.recipient = recipient;
annotation.resolveType(scope);
// null if receiver is a package binding
if (annotations != null) {
annotations[i] = annotation.getCompilerAnnotation();
}
}
}
// check duplicate annotations
if (annotations != null) {
AnnotationBinding[] distinctAnnotations =
annotations; // only copy after 1st duplicate is detected
for (int i = 0; i < length; i++) {
AnnotationBinding annotation = distinctAnnotations[i];
if (annotation == null) continue;
TypeBinding annotationType = annotation.getAnnotationType();
boolean foundDuplicate = false;
for (int j = i + 1; j < length; j++) {
AnnotationBinding otherAnnotation = distinctAnnotations[j];
if (otherAnnotation == null) continue;
if (otherAnnotation.getAnnotationType() == annotationType) {
foundDuplicate = true;
if (distinctAnnotations == annotations) {
System.arraycopy(
distinctAnnotations,
0,
distinctAnnotations = new AnnotationBinding[length],
0,
length);
}
distinctAnnotations[j] = null; // report it only once
scope.problemReporter().duplicateAnnotation(sourceAnnotations[j]);
}
}
if (foundDuplicate) {
scope.problemReporter().duplicateAnnotation(sourceAnnotations[i]);
}
}
}
}
