Chitil, Olaf and McNeill, Dan and Runciman, Colin
In: Implementation of Functional Languages: 15th International Workshop, IFL 2003, Sep 08-11, 2003, Edinburgh, England.
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Assertions test expected properties of run-time values without disrupting the normal working of a program. So in a lazy functional language assertions should be lazy - not forcing evaluation, but only examining what is evaluated by other parts of the program. We explore the subtle semantics of lazy assertions and describe sequential and concurrent variants of a method for checking lazy assertions. All variants are implemented in Haskell.
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