private void fireEvent(@NotNull PsiTreeChangeEventImpl event) {
boolean isRealTreeChange =
event.getCode() != PsiTreeChangeEventImpl.PsiEventType.PROPERTY_CHANGED
&& event.getCode() != PsiTreeChangeEventImpl.PsiEventType.BEFORE_PROPERTY_CHANGE;
PsiFile file = event.getFile();
if (file == null || file.isPhysical()) {
ApplicationManager.getApplication().assertWriteAccessAllowed();
}
if (isRealTreeChange) {
LOG.assertTrue(
!myTreeChangeEventIsFiring, "Changes to PSI are not allowed inside event processing");
myTreeChangeEventIsFiring = true;
}
try {
for (PsiTreeChangePreprocessor preprocessor : myTreeChangePreprocessors) {
preprocessor.treeChanged(event);
}
for (PsiTreeChangeListener listener : myTreeChangeListeners) {
try {
switch (event.getCode()) {
case BEFORE_CHILD_ADDITION:
listener.beforeChildAddition(event);
break;
case BEFORE_CHILD_REMOVAL:
listener.beforeChildRemoval(event);
break;
case BEFORE_CHILD_REPLACEMENT:
listener.beforeChildReplacement(event);
break;
case BEFORE_CHILD_MOVEMENT:
listener.beforeChildMovement(event);
break;
case BEFORE_CHILDREN_CHANGE:
listener.beforeChildrenChange(event);
break;
case BEFORE_PROPERTY_CHANGE:
listener.beforePropertyChange(event);
break;
case CHILD_ADDED:
listener.childAdded(event);
break;
case CHILD_REMOVED:
listener.childRemoved(event);
break;
case CHILD_REPLACED:
listener.childReplaced(event);
break;
case CHILD_MOVED:
listener.childMoved(event);
break;
case CHILDREN_CHANGED:
listener.childrenChanged(event);
break;
case PROPERTY_CHANGED:
listener.propertyChanged(event);
break;
}
} catch (Exception e) {
LOG.error(e);
}
}
} finally {
if (isRealTreeChange) {
myTreeChangeEventIsFiring = false;
}
}
}
