On 2012-07-14 05:24, Jens Mueller wrote:
Hi,
there is some documentation on writing a Deimos interface.
E.g.
http://prowiki.org/wiki4d/wiki.cgi?LanguageDevel/DIPs/DIP12
http://dlang.org/interfaceToC.html
I'd like to get a list of rules that one has to follow.
First you have to convert the name of the header file to a valid D
module name. Therefore, I found/came up with the following rules:
* a slash (/) has to be replaced by a dot (.)
* a dash (-) has to be replaced by a dot (.)
* a D keyword gets a underscore (_) appended
Maybe someone can commented on them. I suppose there are even more.
These are just the ones I encountered.
Some questions on module names I could not find a definite answer for:
1. The D page says they should be lower case. Should Deimos module names
also be made lower case?
2. Should all interfaces be put in a common package, say deimos?
Translating the header file itself is pretty straightforward following
http://dlang.org/interfaceToC.html. Though some cases are not covered:
* E.g. use core.stdc.stdint for standard C types.
I would say that when a C typedef has a corresponding type in D, use
that instead of an alias. For example:
int8_t -> use byte
int32_t -> use int
But one need to make sure that the typedef resolves to the same D type
on all platforms.
* const T* should be replaced with const(T)*
* How to deal with macros?
Can we write a recipe like guide for writing a Deimos interface?
You can have a look at dstep for automatically translate C/Objective-C
headers: https://github.com/jacob-carlborg/dstep
--
/Jacob Carlborg
