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Lazy allocate @forced_changes

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It is almost no longer used in Active Record.
This commit is contained in:
Ryuta Kamizono 2020-06-14 13:50:07 +09:00
parent 02e8e6ebd4
commit 5090a64aa3
1 changed files with 8 additions and 5 deletions
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13
activemodel/lib/active_model/attribute_mutation_tracker.rb
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@ -7,9 +7,8 @@ module ActiveModel
class AttributeMutationTracker # :nodoc:
OPTION_NOT_GIVEN = Object.new
def initialize(attributes, forced_changes = Set.new)
def initialize(attributes)
@attributes = attributes
@forced_changes = forced_changes
end
def changed_attribute_names
@ -62,11 +61,15 @@ module ActiveModel
end
def force_change(attr_name)
forced_changes << attr_name
forced_changes[attr_name] = fetch_value(attr_name)
end
private
attr_reader :attributes, :forced_changes
attr_reader :attributes
def forced_changes
@forced_changes ||= {}
end
def attr_names
attributes.keys
@ -82,7 +85,7 @@ module ActiveModel
end
class ForcedMutationTracker < AttributeMutationTracker # :nodoc:
def initialize(attributes, forced_changes = {})
def initialize(attributes)
super
@finalized_changes = nil
end