Transformation of Applicative Specifications into Imperative ...

APPENDIX C. FORMAL SPECIFICATIONS OF TRANSFORMATIONS
end,
CheckPreCondOptRestriction(
or, func, trans, types)
/∗Checks if a map expression contains generators
or hidden generators.∗/
/∗
Arguments:
=======
me: the map expression
Results:
=====
Bool: true if the map expression does not contain
generators, false otherwise
∗/
CheckPreCondGenMap :
MapExpr × FUNC × TRANS × TYPES → Bool
CheckPreCondGenMap(me, func, trans, types) ≡
case me of
EnumeratedMapExpr(ovel) →
case ovel of
ValueExprPairList(vel) →
CheckPreCondPairList(vel, func, trans, types),
NoValueExprPairList → true
end,
ComprehendedMapExpr(vep, t, or) →
CheckPreCondGen(first(vep), func, trans, types) ∧
CheckPreCondGen(second(vep), func, trans, types) ∧
CheckPreCondOptRestriction(
or, func, trans, types)
end,
/∗Checks if an optional restriction contains generators
or hidden generators.∗/
/∗
Arguments:
=======
or: the optional restriction
Results:
=====
Bool: true if the optional restriction does not
contain generators, false otherwise
∗/
CheckPreCondOptRestriction :
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