diff options
Diffstat (limited to 'activesupport/lib/active_support/hash_with_indifferent_access.rb')
-rw-r--r-- | activesupport/lib/active_support/hash_with_indifferent_access.rb | 61 |
1 files changed, 45 insertions, 16 deletions
diff --git a/activesupport/lib/active_support/hash_with_indifferent_access.rb b/activesupport/lib/active_support/hash_with_indifferent_access.rb index 4f71f13971..b878f31e75 100644 --- a/activesupport/lib/active_support/hash_with_indifferent_access.rb +++ b/activesupport/lib/active_support/hash_with_indifferent_access.rb @@ -59,25 +59,28 @@ module ActiveSupport if constructor.respond_to?(:to_hash) super() update(constructor) + + hash = constructor.to_hash + self.default = hash.default if hash.default + self.default_proc = hash.default_proc if hash.default_proc else super(constructor) end end - def default(key = nil) - if key.is_a?(Symbol) && include?(key = key.to_s) - self[key] - else - super - end + def default(*args) + key = args.first + args[0] = key.to_s if key.is_a?(Symbol) + super(*args) end def self.new_from_hash_copying_default(hash) - hash = hash.to_hash - new(hash).tap do |new_hash| - new_hash.default = hash.default - new_hash.default_proc = hash.default_proc if hash.default_proc - end + ActiveSupport::Deprecation.warn(<<-MSG.squish) + `ActiveSupport::HashWithIndifferentAccess.new_from_hash_copying_default` + has been deprecated, and will be removed in Rails 5.1. The behavior of + this method is now identical to the behavior of `.new`. + MSG + new(hash) end def self.[](*args) @@ -92,7 +95,7 @@ module ActiveSupport # hash = ActiveSupport::HashWithIndifferentAccess.new # hash[:key] = 'value' # - # This value can be later fetched using either +:key+ or +'key'+. + # This value can be later fetched using either +:key+ or <tt>'key'</tt>. def []=(key, value) regular_writer(convert_key(key), convert_value(value, for: :assignment)) end @@ -154,6 +157,20 @@ module ActiveSupport alias_method :has_key?, :key? alias_method :member?, :key? + + # Same as <tt>Hash#[]</tt> where the key passed as argument can be + # either a string or a symbol: + # + # counters = ActiveSupport::HashWithIndifferentAccess.new + # counters[:foo] = 1 + # + # counters['foo'] # => 1 + # counters[:foo] # => 1 + # counters[:zoo] # => nil + def [](key) + super(convert_key(key)) + end + # Same as <tt>Hash#fetch</tt> where the key passed as argument can be # either a string or a symbol: # @@ -188,7 +205,7 @@ module ActiveSupport # dup[:a][:c] # => "c" def dup self.class.new(self).tap do |new_hash| - new_hash.default = default + set_defaults(new_hash) end end @@ -206,7 +223,7 @@ module ActiveSupport # hash['a'] = nil # hash.reverse_merge(a: 0, b: 1) # => {"a"=>nil, "b"=>1} def reverse_merge(other_hash) - super(self.class.new_from_hash_copying_default(other_hash)) + super(self.class.new(other_hash)) end # Same semantics as +reverse_merge+ but modifies the receiver in-place. @@ -219,7 +236,7 @@ module ActiveSupport # h = { "a" => 100, "b" => 200 } # h.replace({ "c" => 300, "d" => 400 }) # => {"c"=>300, "d"=>400} def replace(other_hash) - super(self.class.new_from_hash_copying_default(other_hash)) + super(self.class.new(other_hash)) end # Removes the specified key from the hash. @@ -238,16 +255,20 @@ module ActiveSupport def to_options!; self end def select(*args, &block) + return to_enum(:select) unless block_given? dup.tap { |hash| hash.select!(*args, &block) } end def reject(*args, &block) + return to_enum(:reject) unless block_given? dup.tap { |hash| hash.reject!(*args, &block) } end # Convert to a regular hash with string keys. def to_hash - _new_hash = Hash.new(default) + _new_hash = Hash.new + set_defaults(_new_hash) + each do |key, value| _new_hash[key] = convert_value(value, for: :to_hash) end @@ -275,6 +296,14 @@ module ActiveSupport value end end + + def set_defaults(target) + if default_proc + target.default_proc = default_proc.dup + else + target.default = default + end + end end end |