[cfe-dev] Missing info in macro expansion chain

[Abramo Bagnara]

In the source below I need to be able to detect that the token 4 has
been expanded by body of macro z, but I'm unable to do that.

Asking for immediate expansion range of expanded location I get a
MacroArgExpansion loc for argument x whose immediate expansion range is
macro p.

It seems that use of macro z is not tracked in expansion chain, I'm
missing something?


#define p(x) x
#define z 4

void foo() {
  p(z);
}