Safe Haskell | None |
---|
An internal Snap module for (optionally) printing debugging
messages. Normally debug
does nothing, but if you set DEBUG=1
in the
environment you'll get debugging messages. We use unsafePerformIO
to make
sure that the call to getEnv
is only made once.
N.B. this is an internal interface, please don't write external code that depends on it.