extract

Extract.cyan

package metaobjectTest


@doc{*
  Annotation 'extract' is replaced by an Int value corresponding to
  its argument, which should be of the form 'int_value' or 'intvalue'.
  Example:
    assert extract(int5) == 5;
    assert extract(int_555) == 555;
    
  This annotation is used inside a generic prototype to simulate
  the passage of an Int as argument:
        var v = MyVector(Int, int_100) new;
        
  MyVector could have been declared as
  
        object MyVector<T, V>
            var Array<T> array = Array<T> new: @extract(V);
            ...
        end
*}
object Extract

    func run {
        var v = generic.MyVector<Int, int_100> new;
    }

end