Transformation of Applicative Specifications into Imperative ...

APPENDIX C. FORMAL SPECIFICATIONS OF TRANSFORMATIONS
b: the binding
Results:
=====
Text: the text of the binding
∗/
getTextBinding : Binding → Text
getTextBinding(b) ≡
case b of
IdBinding(id) → getText(id)
end,
/∗**** Bindings end ****∗/
/∗**** TRANS ****∗/
/∗Checks if the id of the expected type is in
the Idset.∗/
/∗
Arguments:
=======
et: the expected type of the value expression
idset: the set of ids, either the domain or range
of TRANS
Results:
=====
Bool: true if the expected type is in the idset,
false otherwise
∗/
checkTRANS : ExpType × Id-set → Bool
checkTRANS(et, idset) ≡
case et of
Known(te) →
case te of
TypeName(tn) → tn ∈ idset,
→ false
end,
Unknown → false
end,
/∗Checks if the ids of the expected type is in
the Idset.∗/
/∗
Arguments:
=======
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