Issue #9813 has been updated by Nobuyoshi N…
Status changed from Open to Closed
% Done changed from 0 to 100
Applied in changeset r45874.
class.c: always clear tables first
- class.c (rb_mod_init_copy): always clear instance variable,
constant and method tables first, regardless the source tables.
[ruby-dev:48182] [Bug #9813]
Bug #9813: Module#initialize_copy does not clean the tables
- Author: Nobuyoshi N.
- Status: Closed
- Priority: Normal
- Assignee:
- Category: core
- Target version:
- ruby -v: r45873
- Backport: 2.0.0: REQUIRED, 2.1: REQUIRED
Module#initialize_copyで定数やインスタンス変数を持たないModuleをコピーしても、元の定数やインスタンス変数が残っています。
m = Module.new do
def x
end
const_set(:X, 1)
@x = 2
end
p m.instance_methods, m.instance_variables, m.constants
#=> [:x]
#=> [:@x]
#=> [:X]
m.module_eval do
initialize_copy(Module.new)
end
p m.instance_methods, m.instance_variables, m.constants
#=> []
#=> [:@x]
#=> [:X]
1.8でinitialize_copyが導入された当初からあるバグのようです。