47   assert(It.second && "duplicate FileID");  in lexBuffer()
52   assert(Tok != nullptr);  in Leaf()
71   assert(Child->getRole() == NodeRole::Detached);  in appendChildLowLevel()
72   assert(Role != NodeRole::Detached);  in appendChildLowLevel()
79   assert(Child->Parent == nullptr);  in appendChildLowLevel()
80   assert(Child->NextSibling == nullptr);  in appendChildLowLevel()
81   assert(Child->PreviousSibling == nullptr);  in appendChildLowLevel()
82   assert(Child->getRole() != NodeRole::Detached);  in appendChildLowLevel()
95   assert(Child->getRole() == NodeRole::Detached);  in prependChildLowLevel()
96   assert(Role != NodeRole::Detached);  in prependChildLowLevel()
103   assert(Child->Parent == nullptr);  in prependChildLowLevel()
104   assert(Child->NextSibling == nullptr);  in prependChildLowLevel()
105   assert(Child->PreviousSibling == nullptr);  in prependChildLowLevel()
106   assert(Child->getRole() != NodeRole::Detached);  in prependChildLowLevel()
120   assert((!Begin || Begin->Parent == this) &&  in replaceChildRangeLowLevel()
122   assert((!End || End->Parent == this) && "`End` is not a child of `this`.");  in replaceChildRangeLowLevel()
123   assert(canModify() && "Cannot modify `this`.");  in replaceChildRangeLowLevel()
127     assert(N->Parent == nullptr);  in replaceChildRangeLowLevel()
128     assert(N->getRole() != NodeRole::Detached && "Roles must be set");  in replaceChildRangeLowLevel()
140   assert(Reachable(FirstChild, Begin) && "`Begin` is not reachable.");  in replaceChildRangeLowLevel()
141   assert(Reachable(Begin, End) && "`End` is not after `Begin`.");  in replaceChildRangeLowLevel()
194   assert(L);  in dumpLeaf()
196   assert(Token);  in dumpLeaf()
215   assert(N);  in dumpNode()
272     assert(getParent() == nullptr);  in assertInvariants()
274     assert(getParent() != nullptr);  in assertInvariants()
281       assert(C.isOriginal());  in assertInvariants()
282     assert(!C.isDetached());  in assertInvariants()
283     assert(C.getParent() == T);  in assertInvariants()
285     assert(!Next || &C == Next->getPreviousSibling());  in assertInvariants()
287       assert(&C == T->getLastChild() &&  in assertInvariants()
295     assert(C.getRole() == NodeRole::ListElement ||  in assertInvariants()
298       assert(isa<Leaf>(C));  in assertInvariants()
299       assert(cast<Leaf>(C).getToken()->kind() == L->getDelimiterTokenKind());  in assertInvariants()