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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