[PATCH] D28287: [clang-tidy] Ignore default arguments in modernize-default-member-init

[Malcolm Parsons via Phabricator via cfe-commits]

malcolm.parsons added inline comments.


================
Comment at: clang-tidy/modernize/UseDefaultMemberInitCheck.cpp:161
             cxxBoolLiteral(), cxxNullPtrLiteralExpr(), implicitValueInitExpr(),
-            declRefExpr());
+            declRefExpr(unless(to(varDecl()))));
 
----------------
aaron.ballman wrote:
> malcolm.parsons wrote:
> > aaron.ballman wrote:
> > > Any `varDecl`? Or do we want to limit it to only `parmVarDecl` instead?
> > > ```
> > > int i = 12;
> > > struct S {
> > >   int j;
> > >   S() : j(i) {}
> > > };
> > > ```
> > > It seems reasonable to suggest the member initialization be "fixed" to: `int j = i;`
> > I would find a default member initializer that is not a constant to be surprising.
> > Maybe I want to limit it to `enumConstantDecl`.
> I wouldn't; consider a global synchronization object, like a mutex (this is a relatively common thing).
Note that this check doesn't consider initializations of members that are classes, e.g. `std::lock_guard`.
I have no plans to make it consider them.


https://reviews.llvm.org/D28287