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ShenRuby Release History

Not Yet Released

Features

  • Upgrade to Shen 19.1
  • STDERR is now available via sterror
  • Added (exit N) to exit the process with a given return code

0.15.1 - March 31, 2014

Bug Fix

  • Fixed Shen version in Gem description

0.15.0 - March 31, 2015

Features

  • Added shen-ruby executable for running ShenRuby programs outside of REPL
    • Including support for shebang scripts
  • Upgrade to Shen 18.1
  • Upgrade to Klam 0.0.9 for performance improvements

Bug Fixes

  • Evaluating "c#13;" no longer triggers the message "warning: encountered \r in middle of line, treated as a mere space."

0.13.0 - February 3, 2015

Features

  • Upgrade to Shen 17
    • Shen is now BSD-licenesed, making ShenRuby BSD/MIT licenesed

0.12.1 - February 1, 2015

Breaking Changes

  • The arity of block arguments to Ruby methods no longer needs to be specified. Now all block arguments are denoted by a & followed by the function to pass as the block. Any usages of the old syntax, e.g. &2, must be updated to &.

0.12.0 - January 31, 2015

Features

  • Shen -> Ruby interop
    • See README.md for details

0.11.0 - January 15, 2015

Features

  • KLambda implementation switched to Klam. This has many implications, including:
    • Significant performance increase. E.g., the Shen Test Suite now runs 2.5 times faster than with ShenRuby 0.10.0.
    • Tail call optimization applies only to self tail calls
    • The environment extends BasicObject rather than Object
    • Shen functions are directly installed as methods on the ShenRuby::Shen instance.
    • Many primitives are inlined.
    • Primitives are less strict with respect to type errors, relying on the Shen type checker to do this work when type checking is enabled.
      • E.g., `(+ "a" "b") no longer throws a type error

Breaking Changes

  • Ruby->Shen interop has changed as a result of the switch to Klam and in preparation for more substantial Ruby<->Shen interop to come. Notably:
    • Underscores in method names are no longer coerced to hyphens before invoking Shen functions. Use __send__ to invoke Shen functions having names that are not valid Ruby method names.
    • Ruby arrays are no longer automatically coerced to Shen lists and vice versa.

0.10.0 - September 19, 2014

Features

  • Upgrade to Shen 16

0.9.0 - February 11, 2014

Features

  • Upgrade to Shen 15

0.8.1 - January 27, 2014

Features

  • Upgrade to Shen 14.2

0.8.0 - November 29, 2013

Features

  • Upgrade to Shen 14

Misc

  • Removed JRuby from "known limitations". ShenRuby runs and passes the test suite under JRuby 1.7.8.

0.7.0 - July 3, 2013

Features

  • Upgrade to Shen 13
    • pr is no longer a K Lambda primitive
    • write-byte added as K Lambda primitive
    • open no longer takes stream type as its first argument

Misc

  • Clarify license

0.6.0 - June 11, 2013

Features

  • Upgrade to Shen 12

Bug Fixes

  • KLaSC compliance fixes:
    • if now supports partial application

0.5.0 - May 12, 2013

Features

  • Upgrade to Shen 11

Bug Fixes

  • KLaSC compliance fixes:
    • absvector now raises an error when applied to a negative number

0.4.1 - March 21, 2013

Features

  • Upgrade to Shen 9.1

0.4.0 - March 15, 2013

Features

  • Upgrade to Shen 9.0

Bug Fixes

  • Issue 8 -- quit no longer raises a type error when invoked with type checking enabled.
  • Fixed many instances of ShenRuby's behavior not matching the Shen CLisp reference implementation:
    • absvector, address->, <-address, intern, n->string, pos, string->n, and tlstr now throw errors catchable by trap-error when type violations occur with their arguments.
    • tlstr now raises an error when applied to an empty string
    • set and value now require their first arugment to be a symbol
    • hd and tl now raise an error when applied to non-lists
    • freeze now supports partial application with zero arguments

0.3.1 - January 24, 2013

  • No code changes. Updates Gemspec to refer to Shen 8.0.

0.3.0 - January 24, 2013

Features

  • Upgrade to Shen 8.0

0.2.0 - January 16, 2013

Features

  • Graceful handling of Control-C in ShenRuby REPL [Bruno Deferrari]
  • Handle do in the K Lambda compiler so that it is eligible for tail call elimination [Bruno Deferrari]
  • Ruby->Shen interop
    • Shen functions can now be called from Ruby by invoking the corresponding method on the ShenRuby::Shen instance
    • Ruby arrays are coerced back and forth to K Lambda lists
    • Underscores in Ruby symbols are coerced back and forth to hyphens in Shen symbols

Optimizations

Compared to ShenRuby 0.1.0, 50% faster Shen REPL launch and 38% faster execution of the Shen Test Suite achieved by:

  • Faster application of K Lambda primitives when not partially applied
  • Inlining of list primitives when not partially applied

Bug Fixes

  • Issue 4 -- and and or may now be partially applied
  • Issue 5 -- the error raised by applying too many arguments to a function is now caught by trap-error.

0.1.0 - December 30, 2012

  • First public release
  • Shen 7.1
  • Shen REPL available via srrepl executable