Ref class, available in: Global contextReference objects. Useful for returning things from functions.

Example:
var x=111;
square(&x);// '&' creates the Reference object
Simulator.print(x);//x is now 12321

function square(r)
{r.value=r.value*r.value;}
//square receives the Reference object and changes its 'value' fieldThis class has 4 members:
sdleiF
string toString ROtextual form
untyped valuevalue
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function copyFrom(Ref)doesn't return a valuecopy the referencemake the reference point to the same target,
function newO()create new reference(for internal use only) use &variablename to create Ref objects.
Global context
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