[cfe-dev] ParmVarDecl of CXXConstructorDecl Matcher

[Nathan James via cfe-dev]

On Thu, 2021-02-04 at 21:34 +0000, Hartogs Siegfried via cfe-dev wrote:
> Hello everyone, 
> 
> How would one write a matcher that looks for ParmVarDecls that don't
> occur in constructor decls?
> I'd figure
>  parmVarDecl(unless(hasParent(cxxConstructorDecl()))),
> but that doesn't work.
> Replacing hasParent with hasAncestor seems to work, but looks weird
> considering ParmVarDecls look like direct children of FunctionDecls
> in the AST. Is there something special about ParmVarDecls, also since
> there is the hasAnyParameter matcher?
> 
> Thanks!
> Sigi
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Hi Sigi,

I'm not sure if this is intended behaviour, but it seems the parent of
a `ParmVarDecl` is a `TypeLoc`.
For now this should serve your purpose, but I think this may need
looking into.
`parmVarDecl(hasParent(typeLoc(unless(hasParent(cxxConstructorDecl())))
))`

~Nathan
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