Narwhal JavaScriptCore / JSCocoa Platform

Setup

git clone git://github.com/tlrobinson/narwhal.git narwhal
cd narwhal/engines
git clone git://github.com/tlrobinson/narwhal-jsc.git jsc
cd jsc
make

# run narwhal-jsc directly, defaults to bare JavaScriptCore mode:
bin/narwhal-jsc
# equivalent to above:
bin/narwhal-jscore

# runs with a webkit instance, providing a browser environment (async operations don't work. no run loop)
bin/narwhal-webkit

# runs with a webkit instance, AppKit setup, runloop running, Web Inspector enabled  
bin/narwhal-webkit-debug
# equivalent to above
NARWHAL_JSC_MODE=webkit-debug bin/narwhal-jsc

cd ../..
NARWHAL_ENGINE=jsc bin/narwhal
NARWHAL_ENGINE=jsc NARWHAL_JSC_MODE=webkit-debug bin/narwhal
# etc ...

Profiler and Debugger

In the webkit-debug mode the global object _inspector is the WebInspector object. You can call these Objective-C methods by replacing the colons with underscores (the sender argument is ignored and can be omitted).

For example, to enable the debugger (doesn't automatically break though):

_inspector.startDebuggingJavaScript_();

The following methods are currently exposed through _inspector:

_inspector.show_();
_inspector.showConsole_();
_inspector.close_();
_inspector.attach_();
_inspector.detach_();

currentlyDebugging = _inspector.isDebuggingJavaScript();
_inspector.toggleDebuggingJavaScript_();
_inspector.startDebuggingJavaScript_();
_inspector.stopDebuggingJavaScript_();

enabled = _inspector.isJavaScriptProfilingEnabled();
_inspector.setJavaScriptProfilingEnabled_(enabled);

currentlyProfiling = _inspector.isProfilingJavaScript();
_inspector.toggleProfilingJavaScript_();
_inspector.startProfilingJavaScript_();
_inspector.stopProfilingJavaScript_();

Notes

• Only builds on Mac OS X and JSCocoa support is currently broken, but both of these things can be fixed with improved Makefiles (or Jakefiles)