[cfe-dev] Getting the name of a macro passed as an argument to another macro

[Phil King]

Given:



#include <stdbool.h>


#define M(p) p

int f ( void )
{
   true;
   M( true );

}

then, as expected, I get IntegerLiteral Expr nodes of ( 'int' '1' ) for both lines in the function.

I can get the macro name corresponding to the first '1' (i.e. 'true') by using:


   SL = SM.getSpellingLoc( SM.getImmediateExpansionRange( SL ).first );

   std::pair< FileID, unsigned > ExpansionInfo = SM.getDecomposedLoc( SL );


How do I get the name of the macro passed as the argument to the function-like macro? The code above gives the argument name, 'p'.


Phil.
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