The Road To Version 0.5

[zerbina]

The goals / features for the version 0.5 milestone, which is the milestone following version 0. Version 0.5 is focused on improving the existing features and adding the things postponed from version 0.

Source Language Features

• lang: add record types #139
• lang: add array type #142
• lang: add basic pattern matching (Match) #110
• lang: add dynamic tuple indexing #135
• lang: add float multiplication and division #141

Tooling / Specification

• add a meta-language for formal definitions #69
• rework the meta language #114
• test the reference implementation #120
• add the skully program #70
• spec: define floating-point operational semantics #131

[zerbina]

Before working on any new or existing source language features, the meta-language for defining languages - plus the associated tooling - needs to be implemented first. The textual formal definition existing is good, but in its current form, it's hard to read, edit, and audit (let alone verify/test) -- growing it will only increases the amount of changes/corrections that need to be made once the testable/queryable definition exists.

[zerbina]

I've removed introducing an additional IL from the to-do list, it's too early to start moving the mentioned lowering to their own passes.