int (@NotNull StubBasedPsiElement<?> psi) { if (psi instanceof PsiFile) { return 0; } StubElement<?> liveStub = psi instanceof StubBasedPsiElementBase ? ((StubBasedPsiElementBase<?>)psi).getGreenStub() : psi.getStub(); if (liveStub != null) { return ((StubBase<?>)liveStub).getStubId(); } return ((PsiFileImpl)psi.getContainingFile()).calcTreeElement().getStubbedSpine().getStubIndex(psi); }