As usual, I have a much higher-level question than usually appears on this
list! Please direct me elsewhere if there's a more appropriate forum....
As far as I can tell, in order to use Netbeans JS debugger with JS code that
uses Nashorn I have to use "load" in the eval of my JS. Load apparently does
something to preserve the distinct lines in the JS, which enables the setting
of breakpoints, etc. Simply using engine.eval(string-of-code) or
engine.eval(Reader) means you can't use the debugger.
However, I am writing a platform on which I enable developers to write their JS
code and, like for node.js, etc., I wrap their code invisibly to make it into a
module. That is, I add something along the lines of
(function() { var exports = {}; <<<< this
<user's code>
})();
<<<< and this
to "modularize" the user's code. So if I want to both "wrap" my user's code and
enable them to use the Netbeans debugger, I'm stuck because I either a) read
the JS from its file as a string, wrap it, and then load it; or b) load it as a
file (in which case I don't get the chance to "wrap" it). Here are the two
cases:
a)
String code = getMyJavascriptAsAString("c/somedir/some.js");
code = wrapMyJsCode(code);
engine.eval("load({ script: '" + code + "', name: \"some.js\"})");
ERROR: Problem loading: somedir/some.js': javax.script.ScriptException:
<eval>:1:55 Missing close quote
load({ script: 'var x = {};
^ in <eval> at line number 1 at column number 13
FAILS because the JS code consists of multiple lines and java doesn't support
multi-line strings.
b)
Loading from a file directly
engine.eval("load('c:/somedir/some.js');");
which works in a debugger, but doesn't enable me to "wrap" user's code.
Aside from writing out temporary files, does somebody have a better suggestion?
Is it possible to intercept the handling of "load(<filePath>)" so that I can
inject stuff into the user's code to "modularize" it?
I hope I'm clear.
thanks
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