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module Hashie
module Extensions
module SymbolizeKeys
# Convert all keys in the hash to symbols.
#
# @example
# test = {'abc' => 'def'}
# test.symbolize_keys!
# test # => {:abc => 'def'}
def symbolize_keys!
SymbolizeKeys.symbolize_keys!(self)
self
end
# Return a new hash with all keys converted
# to symbols.
def symbolize_keys
SymbolizeKeys.symbolize_keys(self)
end
module ClassMethods
# Symbolize all keys recursively within nested
# hashes and arrays.
# @api private
def symbolize_keys_recursively!(object)
case object
when self.class
symbolize_keys!(object)
when ::Array
object.each do |i|
symbolize_keys_recursively!(i)
end
when ::Hash
symbolize_keys!(object)
end
end
# Convert all keys in hash to symbols.
#
# @param [Hash] hash
# @example
# test = {'abc' => 'def'}
# Hashie.symbolize_keys! test
# test # => {:abc => 'def'}
def symbolize_keys!(hash)
hash.extend(Hashie::Extensions::SymbolizeKeys) unless hash.respond_to?(:symbolize_keys!)
hash.keys.each do |k| # rubocop:disable Performance/HashEachMethods
symbolize_keys_recursively!(hash[k])
hash[convert_key(k)] = hash.delete(k)
end
hash
end
# Return a copy of hash with all keys converted
# to symbols.
# @param [::Hash] hash
def symbolize_keys(hash)
copy = hash.dup
copy.extend(Hashie::Extensions::SymbolizeKeys) unless copy.respond_to?(:symbolize_keys!)
copy.tap do |new_hash|
symbolize_keys!(new_hash)
end
end
private
# Converts a key to a symbol, if possible
#
# @api private
# @param [<K>] key the key to attempt convert to a symbol
# @return [Symbol, K]
def convert_key(key)
key.respond_to?(:to_sym) ? key.to_sym : key
end
end
class << self
include ClassMethods
end
end
end
end
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