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class method

ObjectSpace.allocation_generation

(untyped) -> (::Integer | nil)

allocation_generation(object) → integer or nil

ext/objspace/object_tracing.c View on GitHub ↗

static VALUE
allocation_generation(VALUE self, VALUE obj)
{
    struct allocation_info *info = lookup_allocation_info(obj);
    if (info) {
        return SIZET2NUM(info->generation);
    }
    else {
        return Qnil;
    }
}

Returns garbage collector generation for the given object.

Example

class B
  include ObjectSpace

  def foo
    trace_object_allocations do
      obj = Object.new
      p "Generation is #{allocation_generation(obj)}"
    end
  end
end

B.new.foo #=> "Generation is 3"

See ::trace_object_allocations for more information and examples.

See also .allocation_class_path .allocation_method_id .allocation_sourcefile also in 4.0 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0

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