[Issue 5710] cannot use delegates as parameters to non-global template

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=5710



--- Comment #10 from David Simcha <dsimcha at yahoo.com> 2011-08-19 07:03:02 PDT ---
(In reply to comment #9)
> My idea:
> doStuff receives a context pointer that points 'an array of context pointers'.
> Backend receives code like follows...
> 
> uint doStuff(uint a, uint b, void** this)  // not void* this
> {
>     // (*this + 0) points the object Foo
>     // (*this + 1) points the stack frame of main()
> 
>     //return fun(a, b);
>     return fun(a, b, (*this + 1));
> }
> 
> Caller of doStuff have to create array of context pointers.
> 
> void main(){
>     ...
>     //foo.doStuff!add(1, 2);
>     void*[2] thisarray = [(stack frame of main), foo];
>     doStuff(a, b, thisarray.ptr);
> }

Sounds great if you can pull it off.  I was thinking the same thing, but I'm
not familiar enough with the DMD codebase to know how easy/hard it would be to
implement.  This would remove some really silly/annoying limitations from
std.parallelism.

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