3198 llvm::Optional<uint32_t> Lexer::tryReadNumericUCN(const char *&StartPtr,  in tryReadNumericUCN()  argument
3202   char Kind = getCharAndSize(StartPtr, CharSize);  in tryReadNumericUCN()
3222   const char *CurPtr = StartPtr + CharSize;  in tryReadNumericUCN()
3264       Diag(StartPtr, FoundEndDelimiter ? diag::warn_delimited_ucn_empty  in tryReadNumericUCN()
3272       Diag(StartPtr, diag::err_hex_escape_no_digits) << StringRef(KindLoc, 1);  in tryReadNumericUCN()
3298     if (CurPtr - StartPtr == (ptrdiff_t)(Count + 2 + (Delimited ? 2 : 0)))  in tryReadNumericUCN()
3299       StartPtr = CurPtr;  in tryReadNumericUCN()
3301       while (StartPtr != CurPtr)  in tryReadNumericUCN()
3302         (void)getAndAdvanceChar(StartPtr, *Result);  in tryReadNumericUCN()
3304     StartPtr = CurPtr;  in tryReadNumericUCN()
3309 llvm::Optional<uint32_t> Lexer::tryReadNamedUCN(const char *&StartPtr,  in tryReadNamedUCN()  argument
3314   char C = getCharAndSize(StartPtr, CharSize);  in tryReadNamedUCN()
3317   const char *CurPtr = StartPtr + CharSize;  in tryReadNamedUCN()
3323       Diag(StartPtr, diag::warn_ucn_escape_incomplete);  in tryReadNamedUCN()
3345       Diag(StartPtr, FoundEndDelimiter ? diag::warn_delimited_ucn_empty  in tryReadNamedUCN()
3357       Diag(StartPtr, diag::err_invalid_ucn_name)  in tryReadNamedUCN()
3387     if (CurPtr - StartPtr == (ptrdiff_t)(Buffer.size() + 4))  in tryReadNamedUCN()
3388       StartPtr = CurPtr;  in tryReadNamedUCN()
3390       while (StartPtr != CurPtr)  in tryReadNamedUCN()
3391         (void)getAndAdvanceChar(StartPtr, *Result);  in tryReadNamedUCN()
3393     StartPtr = CurPtr;  in tryReadNamedUCN()
3398 uint32_t Lexer::tryReadUCN(const char *&StartPtr, const char *SlashLoc,  in tryReadUCN()  argument
3403   char Kind = getCharAndSize(StartPtr, CharSize);  in tryReadUCN()
3405     CodePointOpt = tryReadNumericUCN(StartPtr, SlashLoc, Result);  in tryReadUCN()
3407     CodePointOpt = tryReadNamedUCN(StartPtr, Result);  in tryReadUCN()