diff options
Diffstat (limited to 'mrbgems/mruby-hash-ext/mrblib/hash.rb')
| -rw-r--r-- | mrbgems/mruby-hash-ext/mrblib/hash.rb | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/mrbgems/mruby-hash-ext/mrblib/hash.rb b/mrbgems/mruby-hash-ext/mrblib/hash.rb index 14da1ddb5..87817f833 100644 --- a/mrbgems/mruby-hash-ext/mrblib/hash.rb +++ b/mrbgems/mruby-hash-ext/mrblib/hash.rb @@ -404,6 +404,26 @@ class Hash end ## # call-seq: + # hsh.transform_keys! {|key| block } -> hsh + # hsh.transform_keys! -> an_enumerator + # + # Invokes the given block once for each key in <i>hsh</i>, replacing it + # with the new key returned by the block, and then returns <i>hsh</i>. + # + # If no block is given, an enumerator is returned instead. + # + def transform_keys!(&b) + return to_enum :transform_keys! unless block_given? + self.keys.each do |k| + value = self[k] + new_key = yield(k) + self.__delete(k) + self[new_key] = value + end + self + end + ## + # call-seq: # hsh.transform_values {|value| block } -> new_hash # hsh.transform_values -> an_enumerator # @@ -421,4 +441,21 @@ class Hash end hash end + ## + # call-seq: + # hsh.transform_values! {|key| block } -> hsh + # hsh.transform_values! -> an_enumerator + # + # Invokes the given block once for each value in the hash, replacing + # with the new value returned by the block, and then returns <i>hsh</i>. + # + # If no block is given, an enumerator is returned instead. + # + def transform_values!(&b) + return to_enum :transform_values! unless block_given? + self.keys.each do |k| + self[k] = yield(self[k]) + end + self + end end |