diff options
Diffstat (limited to 'activesupport/lib/active_support/core_ext/hash/indifferent_access.rb')
-rw-r--r-- | activesupport/lib/active_support/core_ext/hash/indifferent_access.rb | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/hash/indifferent_access.rb b/activesupport/lib/active_support/core_ext/hash/indifferent_access.rb new file mode 100644 index 0000000000..2353cfaf3b --- /dev/null +++ b/activesupport/lib/active_support/core_ext/hash/indifferent_access.rb @@ -0,0 +1,38 @@ +class HashWithIndifferentAccess < Hash + def initialize(constructor) + if constructor.is_a?(Hash) + super() + update(constructor.symbolize_keys) + else + super(constructor) + end + end + + alias_method :regular_reader, :[] unless method_defined?(:regular_reader) + + def [](key) + case key + when Symbol: regular_reader(key) || regular_reader(key.to_s) + when String: regular_reader(key) || regular_reader(key.to_sym) + else regular_reader(key) + end + end + + alias_method :regular_writer, :[]= unless method_defined?(:regular_writer) + + def []=(key, value) + regular_writer(key.is_a?(String) ? key.to_sym : key, value) + end +end + +module ActiveSupport #:nodoc: + module CoreExtensions #:nodoc: + module Hash #:nodoc: + module IndifferentAccess + def with_indifferent_access + HashWithIndifferentAccess.new(self) + end + end + end + end +end |