Hi, I'm trying to understand a part of the changesFile equation, specifically oldstat.

changesFile :: Checkable p i => p i -> FilePath -> Property i changesFile p f = checkResult getstat comparestat p where getstat = catchMaybeIO $ getSymbolicLinkStatus f comparestat oldstat = do newstat <- getstat return $ if samestat oldstat newstat then NoChange else MadeChange

As we see, we catch getstat given f, but what I don't understand or see, is how is oldstat been passed/generated?

Thanks for the help.