Computer Science Question Scala Background Information Long Question Short End Thumb Thank Q37098014

December 7, 2021 by Administrator

Computer Sciencequestion about Scala. The background information is long butquestion itself is short on the end.
I will thumb up, thank you!

In class, we mentionedthat developing a static type system for catchingrun time errors is much harder. Let us try and see whathappens.

Let us modify our typegrammar to have two different types of numbers: zero andnon-zer

NonZeroNumType ZeroNumType

with the followingsubset of Lettuce just involving arithmetic and let bindings:

I Expr Const(Double) Iden(Identifier) Plus(Expr, Expr) Did Expr, Expr) → l Let(Identifier, Type, Expr, Expr)

Goal:Guarantee that a numeric value that