NoQ added inline comments.
Herald added a subscriber: ASDenysPetrov.

================
Comment at: clang/lib/StaticAnalyzer/Checkers/ContainerModeling.cpp:713
+  StringRef Name;
+  if (const auto *DRE = dyn_cast<DeclRefExpr>(ContE->IgnoreParenCasts())) {
+    Name = DRE->getDecl()->getName();
----------------
baloghadamsoftware wrote:
> baloghadamsoftware wrote:
> > NoQ wrote:
> > > Hmm, i think you should instead look at `ContReg`, i.e. whether it's a 
> > > non-anonymous `VarRegion` or a `FieldRegion` or something like that (in 
> > > other patches as well). It would work more often and it'll transparently 
> > > handle references.
> > Unfortunately it is a `SymRegion` so it does not work :-( (Even using 
> > `getMostDerivedRegion()` does not help.)
> You mean the first checking form `SymbolicRegion`, then get its symbol, check 
> for `SymbolRegionValue`, then get its `TypedValueRegion`, check for 
> `DeclRegion` and use its `Decl`? This sound waaay more complicated and less 
> readable. I am not sure which are the side cases: is it always 
> `SymbolicRegion`? Is the `Symbol` of `SymbolicRegion` always a 
> `SymbolRegionValue`? Is ithe `TypedValueRegion` (the return value of its 
> `getRegion()`) always a `DeclRegion`?
> Unfortunately it is a `SymRegion`

Emm, that's rarely the case. Only if it's a reference passed into a top-level 
function as a parameter.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D73720/new/

https://reviews.llvm.org/D73720



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