CoffeeScript support does not work

[walterhiggins]

I'm getting errors when the Java plugin attempts to load and evaluate the _coffeescript.js file (it's there - I've downloaded it) ...

21:53:56 [SEVERE] javax.script.ScriptException: sun.org.mozilla.javascript.EvaluatorException: Encountered code generation error while compiling function "null": generated bytecode for method exceeds 64K limit. (#8) in at line number 8
21:53:56 [SEVERE] at com.sun.script.javascript.RhinoScriptEngine.eval(RhinoScriptEngine.java:183)
21:53:56 [SEVERE] at javax.script.AbstractScriptEngine.eval(AbstractScriptEngine.java:249)
21:53:56 [SEVERE] at net.walterhiggins.scriptcraft.ScriptCraftPlugin.onEnable(Unknown Source)

See 7205646

[f0086]

Works good on my side. What Java RE do you have installed?
I use the OpenJDK 7

 $ java -version
 java version "1.7.0_21"
 OpenJDK Runtime Environment (IcedTea 2.3.9) (ArchLinux build 7.u21_2.3.9-4-x86_64)
 OpenJDK 64-Bit Server VM (build 23.7-b01, mixed mode)

I found this one: http://coachwei.sys-con.com/node/676073/mobile
Seems the big function() {} wrapper in the _coffeescript.js file is the problem.

I'll try to reproduce the problem with the Oracle JRE.

[walterhiggins]

java version "1.6.0_27"
OpenJDK Runtime Environment (IcedTea6 1.12.6) (6b27-1.12.6-1ubuntu0.12.04.2)
OpenJDK Server VM (build 20.0-b12, mixed mode)

[walterhiggins]

Hi @aaronmueller ,
Any update on this issue? Were you able to reproduce it in 1.6 ?

[f0086]

No, I've had some problems running multiple Java versions on my machine and hadn't time to investigate the problem here. But I've done some research. The main problem seems this:

 generated bytecode for method exceeds 64K limit

Java6 tries to compile the coffeescript.js file to Java bytecode and failed. To prevent this, the sun.org.mozilla.javascript.Context can be set in an interpreter mode (Java7 does this by default?).

According to the documentation, we need to call setOptimizationLevel(-1) on the sun.org.mozilla.javascript.Context (see here: http://www-archive.mozilla.org/rhino/apidocs/org/mozilla/javascript/Context.html#setOptimizationLevel(int))

Can you please try this?

[walterhiggins]

Hi Aaron,

ScriptCraft uses the javax.script package bundled with Java 6/7. It no longer uses or depends on Rhino.
I've removed the coffeescript code from the codebase as it doesn't work in most Java environments.
If you can get this to work in a vanilla Java 6/7 env (using the javax.script package with no deps on external Rhino - the javascript engine bundled with java 6/7 differs from Rhino - see 'Javascript Script Engine' here - http://docs.oracle.com/javase/6/docs/technotes/guides/scripting/programmer_guide/index.html - there is no optimizer available ).