[cfe-users] How to I match all parameters?

[Bill White]

I'm trying to create an AST matcher which matches parameters to functions
whose type is a pointer to a particular class.  Let's say I care about a
class named C.  Then I want to match all calls to functions which pass a C*
parameter.

I've tried this matcher:
functionDecl(
  forEachDescendant(
    callExpr(
      hasAnyArgument(
        expr(
          hasType(
            pointerType(
              pointee(
                hasDeclaration(
                  recordDecl(
                    hasName("C"))))))).bind("argument"))))).bind("root")

But when I match it with this function:

int g(C*, const C*, int);
int h(C*);
int hereitis()
{
    C bd, bdtoo;
    return g(&bd, &bdtoo, h(&bd));
   //                                        ^A
   //             ^B
}

I only get two matches at the locations A and B above.  I don't
get the match when bdtoo is passed,

I've tried sprinkling forEach  around in various places, but I either
get ambiguous matchers, because forEach is polymorphic, or I don't
get any matches.

Thanks if you can offer any help.

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