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CHANGELOG.md

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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog and this project adheres to Semantic Versioning.

v0.3.0

Additions

  • Many additions to the standard library (See #57. Thanks @bmulvihill, @minirop, @atuley, and @zkayser). Integer, Float, and Enumerable received big buffs, among other things.
  • Added a Time type and Time#now to get the current system time (see #85. Thanks, @bmulvihill).
  • Added the extend keyword for adding Module ancestors to the static scope of a Type (see #77. Thanks, @zkayser).
  • Added support for the Splat operator (*) for deconstructing objects into Lists of values (see #71).
  • Added support for Unary operators Not (!) and Negation (-) (see #52, #46. Thanks, @rainbru).
  • Allow any functor to be "captured" with the & unary operator (see #50).
  • Added support for anonymous functions using the fn keyword (see #47).
  • Object instantiations can accept captured functions as the block parameter (See #91). This keeps parity with regular method calls.
  • Added __FILE__, __LINE__, and __DIR__ magic constants (see #90, #45. Thanks, @bmulvihill).

Bug Fixes

  • Properly maintain local scope overrides after rescuing an error (see #95).
  • Properly restore the value self after rescuing an error (see #65).
  • Fixed a bug with List#== where lists were incorrectly considered equal (see #89. Thanks, @bmulvihill).
  • Open angle brackets in Strings no longer cause a ParseError (see #80. Thanks, @bmulvihill).
  • Accessing/assigning non-existent elements in a List no longer raises an error (see #72. Thanks, @bmulvihill).

Miscellaneous

  • Adding parentheses after a Var will always force it to be a Call, even with no arguments (see #54. Thanks, @bmulvihill).

Infrastructure

  • Upgraded to Crystal 0.24.1 (see #99). This should improve the experience of developing Myst, particularly on macOS.
  • Fixed the fibonnaci example code to use the correct sequence numbers in the comments (see #55. Thanks, @minirop).

v0.2.0

Added

  • Interpolate any expression into a string using <(...)> (#33)
  • Add operational assignments (e.g., ||= and +=) for shorter, cleaner expressions (#30)
  • Allow operators as method names (#29)
  • Query and bang (? and !) methods (#28)
  • Warning messages when referencing Underscore variables (#34. Thanks, @rainbru!)
  • self returns the interpreter's current self value (#40)
  • Basic Spec library for making assertions in Myst code (#39)

Bug fixes

  • Fixed Constant lookup from instances to also check the static scope (#38)

Miscellaneous

  • Better linux installation instructions (#32. Thanks, @rainbru!)

v0.1.0

Initial release of the Myst language!