[cfe-dev] TypedefDecl for injected-class-name

[Argiris Kirtzidis]

Hi Doug,

Is creating a TypedefDecl for injected-class-name really necessary ?
I think we can avoid allocating something like this, probably by using
      PushOnScopeChains(Dcl, S);
where 'Dcl' is the CXXRecordDecl.

Creating a TypedefDecl doesn't "fit" well with the 'real' declarations, e.g:

class C {
  static int C;
};

t.cpp:2:14: error: redefinition of 'C' as different kind of symbol
  static int C;
             ^
t.cpp:1:9: error: previous definition is here
class C {
        ^


where we would like to have something like:

error: declaration of a member with the same name as its class


And the fact that

class C {
  int C;
};

compiles is actually due to a bug where instance fields is not colliding 
with other member declarations, like

class C {
  typedef int T;
  int T;  // bug, no collision
};

-Argiris