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27 /// TokenLexer - This implements a lexer that returns tokens from a macro body
29 /// macro expansion and _Pragma handling, for example.
33   /// The macro we are expanding from. This is null if expanding a token stream.
34   MacroInfo *Macro = nullptr;
36   /// The actual arguments specified for a function-like macro, or null. The
43   /// This is the pointer to an array of tokens that the macro is
46   /// the macro definition we are lexing from, a cache buffer that is owned by
59   /// The source location range where this macro was expanded.
63   /// was reserved for the current macro expansion.
66   /// The offset of the macro expansion in the
70   /// Location of the macro definition.
73   /// Length of the macro definition.
76   /// Lexical information about the expansion point of the macro: the identifier
77   /// that the macro expanded from had these properties.
85   // leading space will be applied to the first token following the macro
91   /// macros (for example) we just point into the token buffer of the macro
96   /// should not be subject to further macro expansion.
104   /// Create a TokenLexer for the specified macro with the specified actual
106   /// ILEnd specifies the location of the ')' for a function-like macro or the
107   /// identifier for an object-like macro.
127   /// Initialize this TokenLexer to expand from the specified macro
130   /// ')' for a function-like macro or the identifier for an object-like macro.
137   /// DisableExpansion is true when macro expansion of tokens lexed from this
142   /// If the next token lexed will pop this macro off the
147   /// Lex and return a token from this macro stream.
157   /// Return true if the next lex call will pop this macro off the include
169   ///       \code L #macro-arg. \endcode
209   /// Expand the arguments of a function-like macro so that we can quickly
215   /// macro, other active macros, and anything left on the current physical
220   /// If \p loc is a FileID and points inside the current macro
222   /// macro expansion source location entry.
225   /// Creates SLocEntries and updates the locations of macro argument
228   /// \param ArgIdSpellLoc the location of the macro argument id inside the
229   /// macro definition.
237                                     MacroInfo *Macro, unsigned MacroArgNo,