Re: safe vs. unsafe (Was: Haskell Platform proposal: Add the vector package)

Am Freitag, den 13.07.2012, 10:49 +0100 schrieb Simon Marlow:

Here it is:

http://community.haskell.org/~simonmar/papers/safe-haskell.pdf

On page 5, the paper mentions that RULES pragmas in an imported module may change the meaning of the importing module. This is true. However, I see another problem: RULES pragmas in the imported module can make the code in the imported and the importing module non-deterministic, as it is not clear which rules are fired. Is there a reason for this problem not being mentioned in the paper? Or am I understanding something wrong? Best wishes, Wolfgang