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 | 36 |
1 files changed, 21 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 2e2ed8a25d..e4afc8af93 100644 --- a/activesupport/lib/active_support/hash_with_indifferent_access.rb +++ b/activesupport/lib/active_support/hash_with_indifferent_access.rb @@ -177,20 +177,18 @@ module ActiveSupport super(convert_key(key), *extras) end - if Hash.new.respond_to?(:dig) - # Same as <tt>Hash#dig</tt> where the key passed as argument can be - # either a string or a symbol: - # - # counters = ActiveSupport::HashWithIndifferentAccess.new - # counters[:foo] = { bar: 1 } - # - # counters.dig('foo', 'bar') # => 1 - # counters.dig(:foo, :bar) # => 1 - # counters.dig(:zoo) # => nil - def dig(*args) - args[0] = convert_key(args[0]) if args.size > 0 - super(*args) - end + # Same as <tt>Hash#dig</tt> where the key passed as argument can be + # either a string or a symbol: + # + # counters = ActiveSupport::HashWithIndifferentAccess.new + # counters[:foo] = { bar: 1 } + # + # counters.dig('foo', 'bar') # => 1 + # counters.dig(:foo, :bar) # => 1 + # counters.dig(:zoo) # => nil + def dig(*args) + args[0] = convert_key(args[0]) if args.size > 0 + super(*args) end # Same as <tt>Hash#default</tt> where the key passed as argument can be @@ -228,7 +226,7 @@ module ActiveSupport # hash.fetch_values('a', 'c') # => KeyError: key not found: "c" def fetch_values(*indices, &block) indices.collect { |key| fetch(key, &block) } - end if Hash.method_defined?(:fetch_values) + end # Returns a shallow copy of the hash. # @@ -311,6 +309,14 @@ module ActiveSupport dup.tap { |hash| hash.transform_keys!(*args, &block) } end + def transform_keys! + return enum_for(:transform_keys!) { size } unless block_given? + keys.each do |key| + self[yield(key)] = delete(key) + end + self + end + def slice(*keys) keys.map! { |key| convert_key(key) } self.class.new(super) |