On Monday, 25 June 2012 at 20:31:18 UTC, Walter Bright wrote:
On 6/25/2012 8:26 AM, Manu wrote:
I suspect this isn't possible in a compiled language like D,
but I wonder
anyway, has anyone considered partial classes in D? Are they
technically possible?
How would they work? Would it depend on link-time code
generation?
I can imagine an implementation where each 'part' occupies a
separate
allocation, and some pointer in Object or somewhere like that
(somewhere near
the typeinfo pointer) binds them together.
Are you talking about adding fields/functions to an arbitrary
class without modifying the original definition of that class?
If so, this would violate principles of encapsulation, and
there'd be terrible consequences (as you could not rely on the
class definition being the class definition without examining
the entire code base).
But, you can use UFCS to "add" member functions to an existing
class.
Adding data members can be done using the PIMPL technique,
string mixins, or template mixins (but the original class needs
to be designed for that).
He's talking about this:
http://msdn.microsoft.com/en-us/library/wa80x488(v=vs.80).aspx.
