It is not really useful for anything at the moment.
This library uses Template Haskell and language-c-quote, a quasi-quotation library for C-like languages, to provide inline C and Objective-C in Haskell. It extracts the C/Objective-C code automatically, when compiling the Haskell program, and generates marshalling code for common types. The wiki on GitHub details the motivation for this approach.
This is currently just an experiment with a dumb build system. To compile it, you need the Haskell Platform 2012.4.0.0 (with GHC 7.4.2) and my fork of language-c-quote (for the Objective-C support). Specifically,
- Clone my fork of
language-c-quoteand select theinline-objcbranch. - In the cloned repository, run
cabal install. - Clone this repository (
language-c-inline). - In the cloned repository, run
make. - Now run the demo executable with
./InlineObjC.
The proof of concept has two main components:
TestInlineObjC.hs: This is an example of what a user writes to use the Inline C & Objective-C library.InlineObjC.hs: This is a mock up of the Template Haskell that turns inline Objective-C code into a helper Objective-C file (here, it isTestInlineObjC_objc.m) and vanilla Haskell that invokes the Objective-C code via the regular Haskell C FFI. It works for this example, but is otherwise rather incomplete.