Struct#inspect needs more meaningful output
Added by postmodern (Hal Brodigan) over 10 years ago.
Updated over 5 years ago.
When inheriting directly from Struct.new, Class#ancestors shows a meaningless anonymous Class:
class Point < Struct.new(:x, :y)
((x ** 2) + (y ** 2)) ** 0.5
# => [Point, #<Class:0x007fe204a1a228>, Struct, Enumerable, Object, Kernel, BasicObject]
Perhaps, the anonymous Class could list the Struct's fields?
I like it too. Could even be:
# => [Point, Struct.new(:x, :y), Struct, Enumerable, Object, Kernel,
It might be worth pointing out that this should not happen if the Struct generated class is assigned to a constant (and so one level of inheritance is not unused):
Point = Struct.new(:x, :y) do
- Tracker changed from Bug to Feature
- Status changed from Open to Assigned
- Assignee set to matz (Yukihiro Matsumoto)
This is not a bug. This ticket has been moved to the feature tracker.
I'm not against this proposal, but I don't think that people normally check the singleton class to know Struct fields. You may want to use Struct.#members:
p Point.members #=> [:x, :y]
It is shorter than ancestors.
Yusuke Endoh firstname.lastname@example.org
- Target version deleted (
Also available in: Atom