JSShaper is an extensible framework for JavaScript syntax tree
shaping, created by Olov Lassus <[email protected]>.

The JSShaper web site is available at <http://jsshaper.org>.

There's a google group at <http://groups.google.com/group/jsshaper>
Follow me on <http://twitter.com/olov> or visit me at <http://lassus.se>.

JSShaper and its plugins are implemented in JavaScript. Syntax tree
shaping means performing complex manipulations to a syntax tree
representation of your textual source code, and then turning it back
into source code again. JSShaper goes very far to keep all your source
code formatting, intendation, whitespace and comments.

JSShaper comes with the following plugins:
  annotation-printer:
    prints /* @annotations */
  asserter:
    provides c-style assertions by shaping
    assert(f(x) === 3) into
    assert(f(x) === 3, "f(x) === 3, function myfn, file myfilename.js, line 14")
  bitwiser:
    static analysis. requires @bitwise annotation for the
    bitwise operators | (or), & (and), to detect misspelling of the
    logical operators ||, &&.
  stringconverter:
    detects the ""+expr pattern and turns it into String(expr)
  restricter:
    adds run-time checking for restrict mode programs by
    converting operators into function calls in a compatible way. it
    comes with a small run-time library. <http://restrictmode.org>

It also comes with a few small and simple examples (src/examples).

Get the source code from <https://github.com/olov/jsshaper>:
git clone git://github.com/olov/jsshaper.git
cd jsshaper
git submodule init
git submodule update

JSShaper is young, not very documented, and may crash with horrible
error messages. Thanks for being an early adopter and reporting bugs or
annoyances. Contributors are welcome!

JSShaper is designed to run from the command line. It should be
possible to use with the following JS shells:
  js: recent versions of Mozilla SpiderMonkey
  d8: Google V8 debug shell
  node: Embedded V8 with lots more

It doesn't work with the JavaScriptCore jsc shell since it has no
native read function.

Run it like this (replace d8 with your preferred shell):
d8 run-shaper.js -- filename [shape1 .. shapeN]
  where shape is a plugin (see plugins/) or --builtin (--tree or --source)
example: d8 run-shaper.js -- myfile.js plugins/annotater.js plugins/bitwiser.js --source
example: d8 run-shaper.js -- myfile.js plugins/annotater.js plugins/restricter.js --source

For restricter, you can also run the more convenient run-restricter:
example: d8 run-restricter.js -- myfile.js

JSShaper and its plugins are Open Source and licensed under the MIT
license, see LICENSE file for terms and conditions.

JSShaper uses the parser from the Mozilla Narcissus
JavaScript-in-JavaScript interpreter
<https://github.com/mozilla/narcissus>, under the terms of the MPL 1.1
license. For full Narcissus licensing information read the
src/narcissus/LICENSE file.