nools compile bug with key 'from'

[taoqf]

i have been using nools for a while(v0.4.1) and i found a bug today.
when i compiled *.nools files using the command
nools compile -b test.nools > test.js
, i found the simple rule

function t(){
return 1;
}
rule 'r'{
when {
s: String;
n: Number from t();
}
then {
console.log('n is ', n);
}
}

i got the js file

this.rule("r", {
scope: scope
}, [ [ Number, "n", "true" ] ], function(facts, flow) {
var n = facts.n;
var console = scope.console;
var t = scope.t;
console.log("init");
});

"from test()" changed to "true"

i debugged and found the code in nools/lib/parser/nools/tokens.js:line158
rule.push(constraints);
should be changed into
constraints && rule.push(constraints);
i wish this could be resolved in feature because i cann't use compile in code which takes more time

[DevSide]

I would recommend to use from either with a constant, a fact or a set of facts. You're probably right about the evaluation problem of the from constraint.