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体验新版 GitCode,发现更多精彩内容 >>
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1c3d2a5a
编写于
5月 19, 2010
作者:
N
Neeraj Singh
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Updating the doc with the info that class_inheritable_accessor
copies properties to child at runtime
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activesupport/lib/active_support/core_ext/class/inheritable_attributes.rb
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activesupport/lib/active_support/core_ext/class/inheritable_attributes.rb
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@@ -9,6 +9,8 @@ module ClassInheritableAttributes # :nodoc:
...
@@ -9,6 +9,8 @@ module ClassInheritableAttributes # :nodoc:
# their parents' attributes, instead of just a pointer to the same. This means that the child can add elements
# their parents' attributes, instead of just a pointer to the same. This means that the child can add elements
# to, for example, an array without those additions being shared with either their parent, siblings, or
# to, for example, an array without those additions being shared with either their parent, siblings, or
# children, which is unlike the regular class-level attributes that are shared across the entire hierarchy.
# children, which is unlike the regular class-level attributes that are shared across the entire hierarchy.
# Note that subclasses are give a copy of parent attributes at runtime when subclass is created. After the
# subclass has been created any change in parent attributes will not be reflected in child.
class
Class
# :nodoc:
class
Class
# :nodoc:
def
class_inheritable_reader
(
*
syms
)
def
class_inheritable_reader
(
*
syms
)
options
=
syms
.
extract_options!
options
=
syms
.
extract_options!
...
...
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