notcpp: Avoiding the C preprocessor via cunning use of Template Haskell

notcpp is a library that attempts to provide an alternative to using CPP as a mechanism for conditional compilation. It provides facilities for determining if specific names or class instances exist and responding accordingly.

When a value or class instance appears between minor releases of a third-party package, a common way of dealing with the problem is to use CPP to conditionally use one block of code or another. The trouble with CPP is it's hard to statically analyse: tools based on haskell-src-exts will outright refuse to parse it, for example. It turns out Template Haskell will do the same job in some cases.

notcpp is largely a proof-of-concept, experimental package: you are welcome to use it if it suits you, but it may be liable to change suddenly.

Modules

[Index]

Downloads

• notcpp-0.2.0.1.tar.gz [browse] (Cabal source package)
• Package description (as included in the package)

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• BenMillwood

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