Opened 14 months ago

#199 new enhancement

Only Forward Declare Concrete Instantiations When Needed

Reported by: ajbeach Owned by:
Priority: trivial Component: cfa-cc
Version: 1.0 Keywords:
Cc:

Description

Currently the GenericInstantiator? produces two declarations for every concrete instantiation it creates. A forward declaration and then a complete declaration.

This is done because in between the two declarations all the other concrete declarations the complete declaration refers to are emitted. If these refer back to the type the forward declaration means the name is in scope which allows this to compile without error.

Still the cases where this extra forward declaration is actually used are quiet rare. To avoid producing them the compiler would have to track which ones have been seen separately from the ones that are actually in scope.

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