From: James Herdman <james.herdman@...>
Date: 2009-04-23T01:09:09+09:00
Subject: Re: JRuby problem

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My guess is that the context fails to keep track of local variables. Try an
experiment with something simpler:

ScriptContext sct = jruby.getContext
jruby.eval("name = 'Ahmed'")
jruby.eval('puts "My name is #{name}"')

If things explode, my theory is correct.

James

PS: Semi-colons aren't required, nor are empty parenthesis. It's considered
out of the Ruby norm to use them. As such, I'd avoid them in your coding.
See http://www.pathf.com/blogs/ruby-and-rails-style-guide/

On Wed, Apr 22, 2009 at 11:45 AM, Ahmed Abdelsalam <ahmed@amanzitel.com>wrote:

> Hi,...
>
> I'm trying to execute the following lines:
>
> ScriptContext sct = jruby.getContext();
> jruby.eval("sheet = Spreadsheet.new", sct);
> jruby.eval("sheet.cells.a1 = 'Welcome'", sct);
>
> The first two lines are executed correctly, but the last one gives the
> following error:
> undefined local variable or method `sheet' for main:Object
>
> it indicates that sheet is undefined although it's defined in line 2.
>
> When I try to execute both commands in a single statement like:
>  jruby.eval("sheet = Spreadsheet.new \n sheet.cells.a1 = 'Welcome'",
> sct);
>
> The statement is executed correctly.
>
> Please help
>
> Regards,...
>
> Ahmed
> --
> Posted via http://www.ruby-forum.com/.
>
>

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