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Change Log

This log starts from the code copied over from legacy projects Shen-Language/shen-clisp and Shen-Language/shen-sbcl.

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

The format is based on Keep a Changelog.

Unreleased

Updated to Shen Open Source Kernel 22.3

Fixed

  • Fixed optimizations for addition and subtraction of 1.
  • Fixed code generation for number equality checks when one of the arguments is a known number.

3.0.3 - 2019-12-07

Fixed

  • Fixed override for shen.dict-fold that was not properly calling the curried function, which also broke shen.dict-keys and shen.dict-values.

3.0.2 - 2019-10-13

Changed

  • Overrides for symbol? and variable?. This speeds up the time it takes for eval to compile expressions considerably.

3.0.1 - 2019-10-13

Changed

  • @p and vector constructors are now overriden by better performing native implementations.
  • read-file-as-bytelist, shen.read-file-as-charlist and shen.read-file-as-charlist are also overriden by native implementations.

3.0.0 - 2019-10-12

Updated to Shen Open Source Kernel 22.2

Changed

  • New compiler imported from Shen/Scheme. Generates code that performs better and allocates less memory.
  • Common Lisp's read-table case rules are not modified anymore.
  • Bootstraping from scratch requires a working Shen implementation to precompile the compiler code and kernel.

2.7.0 - 2019-10-03

Updated to Shen Open Source Kernel 22.1

Changed

  • Reintroduced backend written in Shen.
  • Moved everything in the compiler from the shen namespace to shen-cl.
  • Command-line handling has been replaced by the "launcher" kernel extension.
  • do expressions now get compiled into PROGN expression, making them tail-call optimization friendly.

Added

  • Integrated "features" kernel extension.
  • Integrated "launcher" kernel extension.
  • Integrated "factorise-defun" kernel extension optimization.
  • Source release which includes a pre-compiled backend.lsp file.
  • shen-cl.lisp-true? to convert from CL to Shen booleans (counterpart to shen-cl.true?).

2.6.1 - 2019-09-17

Updated to Shen Open Source Kernel 21.2

Changed

  • *port* is now a string with a major.minor.patch format.
  • Errors raised when evaluating --load and --eval arguments now print error and exit with code 1.

2.6.0 - 2019-09-04

Added

  • -s/--set sets global symbols, removing use case for *argv*.
  • Automated binary builds for Linux, Windows and OSX through Travis.

Changed

  • *argv* has been removed.
  • -r gets run in left-to-right order like other options.
  • -v, -h don't exit immediately after.
  • Unrecognized options cause exit with code -1 instead of getting skipped.
  • REPL only starts by default if no command line options specified.
  • Amended shen.credits to explain exit command.
  • Improved help (-h) message.

2.5.0 - 2019-08-01

Added

  • shen-cl.load-lisp, shen-cl.eval-lisp that load and evals Lisp code in string form from Shen.
  • LOAD-SHEN that loads Shen code from Lisp.
  • :SHEN package where Shen code is defined by default.
  • -r/--repl option to force running REPL even if other options would prevent REPL from running.
  • cl.exit (cf. shen-cl.exit) as it is CL-specific function and not shen-cl-specific function.

Changed

  • absvector? no longer returns true for strings.
  • CF-VECTORS can now compare empty absvectors.
  • Shen code now gets defined in :SHEN package instead of :COMMON-LISP package.
  • Makefile uses curl instead of wget on macOS.

2.4.0 - 2018-10-08

Updated to Shen Open Source Kernel 21.1

2.3.0 - 2018-06-01

Updated to Shen Open Source Kernel 21.0

Added

  • make release command that creates os-specific archive of compiled binaries.
  • dict.kl to list of KL imports.
  • lisp. form to embed literal Common Lisp code.

Changed

  • cond now raises an error when no condition is true, instead of returning [].
  • Reimplemented lisp. prefixed native calls in the compiler.

Renamed

  • exit -> shen-cl.exit.
  • read-char-code -> shen.read-char-code

Removed

  • command-line - use (value *argv*) instead.

2.2.0 - 2017-08-23

Added

  • Support for ECL (Embeddable Common Lisp).
  • -q|--quiet flag that sets *hush* to true, disabling most output.

Changed

  • Refactored Makefile. Now make fetch must always be run before anything else.
  • Moved most *.lsp and *.shen files under src/ directory.
  • Changed build output directory from native to bin.

2.1.0 - 2017-05-22

Updated to Shen Open Source Kernel 20.1

Added

  • Support for CCL (Clozure Common Lisp).
  • Makefile.
  • CHANGELOG.
  • Travis-CI build script.

Changed

  • Made built process dependent on pre-built KL from https://github.com/Shen-Language/shen-sources/releases.
  • Script arguments are now preceded by -l, all args go in *argv*.
  • Made CLisp build output an executable like CCL and SBCL do.
  • Cleaned up backend.lsp, as backend.shen was removed.
  • Expanded README.