[vtk-developers] New way of doing wrapper hints

[David Thompson]

+1!

1. I assume that attributes are allowed prior to function parameters... from the spec it was not immediately obvious. For example, what about this method:

VTK_SIZEHINT(sz) double* findOrAddEntries(
    int key, int sz, VTK_SIZEHINT(sz) double* vals);

that both accepts and returns a variable-length array (of length sz, one of the other parameters)?

2. Would you put them in the declaration or implementation? I have a mild preference for the implementation so that the declaration is short and easy to skim.

    David

> I've put a proposal on the wiki for adding wrapping hints to the
> method declarations in the header files:
> 
> http://www.vtk.org/Wiki/VTK/Wrapping_hints
> 
> In this proposal, hinting would be done like this:
> 
>     VTK_SIZEHINT(3) double* GetPoint();
> 
> and we could get rid of the "hints" file.
> 
>  - David
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