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separate identification computation

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This commit is contained in:
Aaron Patterson 2013-05-08 13:36:04 -07:00
parent 8038f7eb10
commit 9e323e7dab
1 changed files with 18 additions and 24 deletions
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42
activesupport/lib/active_support/callbacks.rb
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@ -102,7 +102,7 @@ module ActiveSupport
def self.build(chain, filter, kind, options, _klass)
klass = case filter
when Array, Symbol, String, Proc
when Array, Symbol, String
Callback::Basic
else
Callback::Object
@ -110,7 +110,7 @@ module ActiveSupport
klass.new chain, filter, kind, options, _klass
end
attr_accessor :chain, :filter, :kind, :options, :klass, :raw_filter
attr_accessor :chain, :kind, :options, :klass, :raw_filter
def initialize(chain, filter, kind, options, klass)
@chain, @kind, @klass = chain, kind, klass
@ -118,11 +118,15 @@ module ActiveSupport
normalize_options!(options)
@raw_filter, @options = filter, options
@filter = _compile_filter(filter)
@key = compute_identifier filter
@source = _compile_source(filter)
recompile_options!
end
def filter
@key
end
def deprecate_per_key_option(options)
if options[:per_key]
raise NotImplementedError, ":per_key option is no longer supported. Use generic :if and :unless options instead."
@ -211,6 +215,15 @@ module ActiveSupport
private
def compute_identifier(filter)
case filter
when String, ::Proc
filter.object_id
else
filter
end
end
# Compile around filters with conditions into proxy methods
# that contain the conditions.
#
@ -268,25 +281,6 @@ module ActiveSupport
method_name
end
def _compile_filter(filter)
case filter
when Array
filter.map {|f| _compile_filter(f)}
when Symbol
filter
when String
"(#{filter})"
when Proc
method_name = "_callback_#{@kind}_#{next_id}"
@klass.send(:define_method, method_name, &filter)
return method_name if filter.arity <= 0
method_name << (filter.arity == 1 ? "(self)" : " self, Proc.new ")
else
filter
end
end
# Filters support:
#
# Arrays:: Used in conditions. This is used to specify
@ -315,12 +309,12 @@ module ActiveSupport
filter
when String
"(#{filter})"
when Proc
when ::Proc
method_name = "_callback_#{@kind}_#{next_id}"
@klass.send(:define_method, method_name, &filter)
return method_name if filter.arity <= 0
method_name << (filter.arity == 1 ? "(self)" : " self, Proc.new ")
method_name << (filter.arity == 1 ? "(self)" : " self, ::Proc.new ")
else
method_name = _method_name_for_object_filter(kind, filter)
@klass.send(:define_method, "#{method_name}_object") { filter }