Java 类com.intellij.psi.stubs.PsiFileStubImpl 实例源码

@Override
public void onContentReload()
{
    ApplicationManager.getApplication().assertWriteAccessAllowed();

    synchronized(myStubLock)
    {
        StubTree stubTree = SoftReference.dereference(myStub);
        myStub = null;
        if(stubTree != null)
        {
            //noinspection unchecked
            ((PsiFileStubImpl) stubTree.getRoot()).clearPsi("cls onContentReload");
        }
    }

    synchronized(myMirrorLock)
    {
        putUserData(CLS_DOCUMENT_LINK_KEY, null);
        myMirrorFileElement = null;
        myPackageStatement = null;
    }
}

private PsiFile reportError(StubElement stub) {
  ApplicationManager.getApplication().assertReadAccessAllowed();

  String reason = ((PsiFileStubImpl<?>)stub).getInvalidationReason();
  PsiInvalidElementAccessException exception =
          new PsiInvalidElementAccessException(myStub.getPsi(), "no psi for file stub " + stub + ", invalidation reason=" + reason, null);
  if (PsiFileImpl.STUB_PSI_MISMATCH.equals(reason)) {
    // we're between finding stub-psi mismatch and the next EDT spot where the file is reparsed and stub rebuilt
    //    see com.intellij.psi.impl.source.PsiFileImpl.rebuildStub()
    // most likely it's just another highlighting thread accessing the same PSI concurrently and not yet canceled, so cancel it
    throw new ProcessCanceledException(exception);
  }
  throw exception;
}

FileTrees clearStub(@Nonnull String reason) {
  StubTree stubHolder = derefStub();
  if (stubHolder != null) {
    ((PsiFileStubImpl<?>)stubHolder.getRoot()).clearPsi(reason);
  }
  return new FileTrees(null, myTreeElementPointer, astLoaded, useStrongRefs);
}