685case SlidingTextWindow.InvalidCharacter: 1457char surrogateCharacter = SlidingTextWindow.InvalidCharacter; 1481case SlidingTextWindow.InvalidCharacter: 1594if (surrogateCharacter != SlidingTextWindow.InvalidCharacter) 1693consumedSurrogate = SlidingTextWindow.InvalidCharacter; 1715Debug.Assert(consumedSurrogate == SlidingTextWindow.InvalidCharacter, "Since consumedChar == '\\'"); 1761case SlidingTextWindow.InvalidCharacter: 1796if (consumedSurrogate != SlidingTextWindow.InvalidCharacter) 2123if (ch == SlidingTextWindow.InvalidCharacter) 2176if (ch == SlidingTextWindow.InvalidCharacter || SyntaxFacts.IsNewLine(ch)) 2211if ((ch = TextWindow.PeekChar()) == SlidingTextWindow.InvalidCharacter && TextWindow.IsReallyAtEnd()) 2233(ch != SlidingTextWindow.InvalidCharacter || !TextWindow.IsReallyAtEnd())) 2419case SlidingTextWindow.InvalidCharacter: 2489else if (ch is SlidingTextWindow.InvalidCharacter && this.TextWindow.IsReallyAtEnd()) 2526case SlidingTextWindow.InvalidCharacter: 2775Debug.Assert(this.LocationIs(XmlDocCommentLocation.End) || TextWindow.PeekChar() == SlidingTextWindow.InvalidCharacter); 2836case SlidingTextWindow.InvalidCharacter: 3008if (lowSurrogate != SlidingTextWindow.InvalidCharacter) 3100case SlidingTextWindow.InvalidCharacter: 3233case SlidingTextWindow.InvalidCharacter: 3398case SlidingTextWindow.InvalidCharacter: 3454case SlidingTextWindow.InvalidCharacter: 3524case SlidingTextWindow.InvalidCharacter: 3580char consumedSurrogate = SlidingTextWindow.InvalidCharacter; 3609case SlidingTextWindow.InvalidCharacter: 3882&& nextChar == ch && nextSurrogate == SlidingTextWindow.InvalidCharacter) 4001case SlidingTextWindow.InvalidCharacter: 4045case SlidingTextWindow.InvalidCharacter: 4132case SlidingTextWindow.InvalidCharacter: 4175case SlidingTextWindow.InvalidCharacter: 4254case SlidingTextWindow.InvalidCharacter: 4299case SlidingTextWindow.InvalidCharacter: 4557surrogateCharacter = SlidingTextWindow.InvalidCharacter; 4577Debug.Assert(ch != SlidingTextWindow.InvalidCharacter, "Precondition established by all callers; required for correctness of AdvanceChar() call."); 4587surrogateCharacter = SlidingTextWindow.InvalidCharacter; 4600surrogateCharacter = SlidingTextWindow.InvalidCharacter; 4714surrogate = SlidingTextWindow.InvalidCharacter; 4818lowSurrogate = SlidingTextWindow.InvalidCharacter;

55=> currentChar == SlidingTextWindow.InvalidCharacter && TextWindow.IsReallyAtEnd();

47if (c2 != SlidingTextWindow.InvalidCharacter) 58(ch == SlidingTextWindow.InvalidCharacter && TextWindow.IsReallyAtEnd())) 91info.CharValue = SlidingTextWindow.InvalidCharacter; 132surrogateCharacter = SlidingTextWindow.InvalidCharacter; 229if (ch == SlidingTextWindow.InvalidCharacter && TextWindow.IsReallyAtEnd()) 364(ch == SlidingTextWindow.InvalidCharacter && _lexer.TextWindow.IsReallyAtEnd());

245/// After reading <see cref=" InvalidCharacter"/>, a consumer can determine 317/// The next character, <see cref="InvalidCharacter" /> if there were no characters 323if (c != InvalidCharacter) 342return InvalidCharacter; 365ch = InvalidCharacter; 473lowSurrogate = InvalidCharacter;