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 | 58 |
1 files changed, 43 insertions, 15 deletions
diff --git a/activesupport/lib/active_support/hash_with_indifferent_access.rb b/activesupport/lib/active_support/hash_with_indifferent_access.rb index 306d80b2df..1468c62151 100644 --- a/activesupport/lib/active_support/hash_with_indifferent_access.rb +++ b/activesupport/lib/active_support/hash_with_indifferent_access.rb @@ -1,4 +1,5 @@ require 'active_support/core_ext/hash/keys' +require 'active_support/core_ext/hash/reverse_merge' module ActiveSupport # Implements a hash where keys <tt>:foo</tt> and <tt>"foo"</tt> are considered @@ -55,7 +56,7 @@ module ActiveSupport end def initialize(constructor = {}) - if constructor.is_a?(Hash) + if constructor.respond_to?(:to_hash) super() update(constructor) else @@ -72,13 +73,15 @@ module ActiveSupport 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 end def self.[](*args) - new.merge(Hash[*args]) + new.merge!(Hash[*args]) end alias_method :regular_writer, :[]= unless method_defined?(:regular_writer) @@ -91,7 +94,7 @@ module ActiveSupport # # This value can be later fetched using either +:key+ or +'key'+. def []=(key, value) - regular_writer(convert_key(key), convert_value(value)) + regular_writer(convert_key(key), convert_value(value, for: :assignment)) end alias_method :store, :[]= @@ -125,7 +128,7 @@ module ActiveSupport if other_hash.is_a? HashWithIndifferentAccess super(other_hash) else - other_hash.each_pair do |key, value| + other_hash.to_hash.each_pair do |key, value| if block_given? && key?(key) value = yield(convert_key(key), self[key], value) end @@ -159,7 +162,7 @@ module ActiveSupport # # counters.fetch('foo') # => 1 # counters.fetch(:bar, 0) # => 0 - # counters.fetch(:bar) {|key| 0} # => 0 + # counters.fetch(:bar) { |key| 0 } # => 0 # counters.fetch(:zoo) # => KeyError: key not found: "zoo" def fetch(key, *extras) super(convert_key(key), *extras) @@ -172,10 +175,17 @@ module ActiveSupport # hash[:b] = 'y' # hash.values_at('a', 'b') # => ["x", "y"] def values_at(*indices) - indices.collect {|key| self[convert_key(key)]} + indices.collect { |key| self[convert_key(key)] } end - # Returns an exact copy of the hash. + # Returns a shallow copy of the hash. + # + # hash = ActiveSupport::HashWithIndifferentAccess.new({ a: { b: 'b' } }) + # dup = hash.dup + # dup[:a][:c] = 'c' + # + # hash[:a][:c] # => nil + # dup[:a][:c] # => "c" def dup self.class.new(self).tap do |new_hash| new_hash.default = default @@ -207,7 +217,7 @@ module ActiveSupport # Replaces the contents of this hash with other_hash. # # h = { "a" => 100, "b" => 200 } - # h.replace({ "c" => 300, "d" => 400 }) #=> {"c"=>300, "d"=>400} + # h.replace({ "c" => 300, "d" => 400 }) # => {"c"=>300, "d"=>400} def replace(other_hash) super(self.class.new_from_hash_copying_default(other_hash)) end @@ -223,13 +233,25 @@ module ActiveSupport def deep_stringify_keys; dup end undef :symbolize_keys! undef :deep_symbolize_keys! - def symbolize_keys; to_hash.symbolize_keys end - def deep_symbolize_keys; to_hash.deep_symbolize_keys end + def symbolize_keys; to_hash.symbolize_keys! end + def deep_symbolize_keys; to_hash.deep_symbolize_keys! end def to_options!; self end + def select(*args, &block) + dup.tap { |hash| hash.select!(*args, &block) } + end + + def reject(*args, &block) + dup.tap { |hash| hash.reject!(*args, &block) } + end + # Convert to a regular hash with string keys. def to_hash - Hash.new(default).merge!(self) + _new_hash = Hash.new(default) + each do |key, value| + _new_hash[key] = convert_value(value, for: :to_hash) + end + _new_hash end protected @@ -237,12 +259,18 @@ module ActiveSupport key.kind_of?(Symbol) ? key.to_s : key end - def convert_value(value) + def convert_value(value, options = {}) if value.is_a? Hash - value.nested_under_indifferent_access + if options[:for] == :to_hash + value.to_hash + else + value.nested_under_indifferent_access + end elsif value.is_a?(Array) - value = value.dup if value.frozen? - value.map! { |e| convert_value(e) } + unless options[:for] == :assignment + value = value.dup + end + value.map! { |e| convert_value(e, options) } else value end |