Garbage collection

Ruby
1

I think this is a simple question but I just down’t know where to find
the answer. Any help would be appreciated.

I have the following code:

class MMR
attr_accessor :id, :name, :cap

@@header = []

def initHeader(fld)
@@header = fld
end

def initInstance(fld, cap=0)
@@header.each_with_index {|fn, i| send("#{fn}=", fld[i])}
self
end
end

MMR.new.initHeader([‘id’, ‘name’, ‘cap’])

The above line instanciates an MMR object and initializes @@header.

My question is, since I don’t have a variable pointing to this newly

instantiated MMR object, can it be removed by the garbage collector?

Is this dangerous?

When I run the program it works just fine but I’m afraid it may not

@lst << MMR.new.initHeader([‘1’, ‘disk1’, ‘1073741824’])
@lst << MMR.new.initHeader([‘2’, ‘disk2’, ‘10737418240’])

Thanks
Hector

2

On Jan 26, 2012, at 8:04, Hector Q. [email protected] wrote:

MMR.new.initHeader([‘id’, ‘name’, ‘cap’])

The above line instanciates an MMR object and initializes @@header.

My question is, since I don’t have a variable pointing to this newly

instantiated MMR object, can it be removed by the garbage collector?

Is this dangerous?

It is assigning a class var, so you do have an active reference to it:
the MMR class. Unless you make the class get collected (hard to do), it
is safe for the span of your program’s run.