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ZPE TYPO v2

TYPO has had a big redesign...
29 Jun 2021 at 17:01

TYPO has been completely redesigned from the ground up to make it even better. Compared with the first version of TYPO, the new version uses late static type checking which is done during runtime rather than compilation time. This does add a slight performance penalty compared with untyped data, but it is far more stable than attempting it at compile time since so many functions may return multiple data types.

For example:

YASS
declare $i as number = 50
declare j as number = 32
$i = "Test"

This would crash when it gets to setting $i from a number to a string. Previously this check was carried out by the compiler but it wasn't effective in comparison, whereas defining it this way ensures 100% efficiency in comparisons and although late typing often has performance penalties, in comparison to the previous iteration of TYPO so much has been improved that these penalties are actually minuscule. 

Another major change to TYPO is that is now always enabled and doesn't need to be set in the ZPE Properties file, and can be used in parallel with untyped YASS code for the first time.

The formalised specification of the language has yet to be updated with this new information but will be sorted at some point over the next few days.