Tya v0.48 Release Notes

Status: shipped. The tya version constant is 0.48.0 and ROADMAP.md carries the matching Released entry.

TL;DR

v0.48 lands the two items deferred from v0.47:

• G1 strict bare-name receivers (codified, no code change): bare identifiers inside class method bodies resolve to locals / params / imports only — never to class members. To access a class member write self.x, Self.x, or <OtherClass>.x.
• G6 canonical receiver rule (new): Self.foo is the canonical form for referencing the declaring class’s own member from inside its body. <DeclaringClass>.foo is non-canonical; the formatter rewrites it, and the checker emits [TYA-E0413] under --check-unused strict mode.

In addition, the formatter now consistently emits the v0.46 keyword surface for every class shape: private, static, self., Self., initialize. The legacy sigils (@, @@, _-prefix on class members, init/_init) are rewritten to their v0.46 equivalents on output.

tya format example

# input
class Counter
  @@count = 0
  _seed = 1

  init = name ->
    @name = name
    Counter.count = Counter.count + 1

  @@bump = ->
    Counter.count = Counter.count + 1

# output of `tya format` after v0.48
class Counter
  static count = 0
  private seed = 1

  initialize = name ->
    self.name = name
    Self.count = Self.count + 1

  static bump = () ->
    Self.count = Self.count + 1

[TYA-E0413] strict-mode warning

$ tya check --check-unused counter.tya
4:5: [TYA-E0413] `Counter.count` inside its own class body is non-canonical;
                  write `Self.count`.

The warning fires at WARNING severity so CI can detect drift without running the formatter.

Self-host

selfhost/v01/ continues to use its v0.43 surface. The permissive-legacy path exemption from v0.47 is unchanged. TestSelfhostV01Scripts remains green.

Verification

go test ./... -count=1
go test ./tests -run TestSelfhostV01Scripts -count=1

All green at the v0.48.0 tag.

Cross-References

• docs/v0.48/SPEC.md — frozen v0.48 specification.
• docs/v0.47/SPEC.md — the clean-cut release.
• docs/v0.46/SPEC.md — the keyword surface.
• ROADMAP.md — Released § v0.48.