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Releases: Beluga-lang/Beluga

1.1.2

22 Jul 04:37
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CHANGES:

Added

  • Added C. Sano, R. Kavanagh and B. Pientka's artifact for "Mechanizing Session-Types Using a Structural View" as a case study (#271).

Fixed

  • Support postponed fixity pragmas in modules.
  • The hole _ in the LF term \x._ is parsed as a wildcard instead of as an identifier.
  • Shadowed bindings in a module are no longer brought into scope when the module is opened.
  • Support postponed fixity pragmas in Harpoon sessions.

1.1.1

12 Sep 00:14
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CHANGES:

Added

  • Added support for fixity pragmas before declarations (#270).

Changed

  • Updated the Beluga mode for Emacs to use the 'cl-lib library instead of 'cl.

Fixed

  • Colouring of error messages is fixed for the Beluga mode for Emacs using the 'ansi-color library (requires Emacs >= v28.1).

1.1

05 Aug 02:52
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1.1

CHANGES:

Added

  • Parsing and disambiguation of non-normal expressions is supported.
  • Parsing of prefix, infix and postfix operators is supported for computation-level type family constants and constructors, as well as type-annotated programs and values.
  • Improved error-reporting with printing of source code.
  • Pretty-printing of Beluga signatures to HTML now supports hyperlinks for constants to their declaration site.

Changed

  • Substitution meta-objects need to be prefixed by $. That is, the plain substitution [g |- $S] must be written as $[g |- $S], and the renaming substitution [g |-# $S] must be written as $[g |-# $S].
  • Substitution meta-types need to be prefixed by $. That is, the plain substitution meta-type [g |- h] must be written as $[g |- h], and the renaming substitution meta-type [g |-# h] must be written as $[g |-# h].
  • Parameter types need to be prefixed by #. That is, {#p : [g |- nat]} must be written as {#p : #[g |- nat]}.
  • Identifier overloading is disallowed. This means that term-level constants may not be overloaded with type-level constants.
  • Freezing of type family declarations is more strict. This means that old-style LF term-level constants cannot be added to type families after any declaration other than old-style LF type or term-level constant declarations.
  • Destructors for coinductive type families use postfix notation, like projections or field accesses (i.e., s .hd, s .tl). This applies both in computation-level patterns and expressions.
  • Namespaces are now fully supported in Beluga signatures.

Fixed

  • Interactive Harpoon sessions are now local to the referencing environment in which they are declared.
  • Lexing of nested delimited comments %{{, }}% and %{, }% is fixed.
  • --open pragmas behave like OCaml's open directive, whereby declarations introduced by --open are not re-exported, and not copy/pasted textually.

Removed

  • Harpoon sequencing of REPL commands with ; is no longer supported.
  • Context variable arrow types [ctx] → [⊢ unit] are no longer supported.

v1.0

18 Mar 18:47
v1.0
8484d46
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Release v1.0

v0.8.2

27 Jul 03:04
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Fixing case studies, pretty printing and html generation