diff options
Diffstat (limited to 'activesupport/lib/active_support/core_ext/hash')
7 files changed, 45 insertions, 42 deletions
diff --git a/activesupport/lib/active_support/core_ext/hash/conversions.rb b/activesupport/lib/active_support/core_ext/hash/conversions.rb index 5f07bb4f5a..469dc41f2d 100644 --- a/activesupport/lib/active_support/core_ext/hash/conversions.rb +++ b/activesupport/lib/active_support/core_ext/hash/conversions.rb @@ -8,7 +8,7 @@ require 'active_support/core_ext/string/inflections' class Hash # Returns a string containing an XML representation of its receiver: # - # {"foo" => 1, "bar" => 2}.to_xml + # {'foo' => 1, 'bar' => 2}.to_xml # # => # # <?xml version="1.0" encoding="UTF-8"?> # # <hash> @@ -26,20 +26,20 @@ class Hash # # * If +value+ is a callable object it must expect one or two arguments. Depending # on the arity, the callable is invoked with the +options+ hash as first argument - # with +key+ as <tt>:root</tt>, and +key+ singularized as second argument. The + # with +key+ as <tt>:root</tt>, and +key+ singularized as second argument. The # callable can add nodes by using <tt>options[:builder]</tt>. # - # "foo".to_xml(lambda { |options, key| options[:builder].b(key) }) + # 'foo'.to_xml(lambda { |options, key| options[:builder].b(key) }) # # => "<b>foo</b>" # # * If +value+ responds to +to_xml+ the method is invoked with +key+ as <tt>:root</tt>. - # + # # class Foo # def to_xml(options) - # options[:builder].bar "fooing!" + # options[:builder].bar 'fooing!' # end # end - # + # # {:foo => Foo.new}.to_xml(:skip_instruct => true) # # => "<hash><bar>fooing!</bar></hash>" # @@ -71,7 +71,7 @@ class Hash options = options.dup options[:indent] ||= 2 - options[:root] ||= "hash" + options[:root] ||= 'hash' options[:builder] ||= Builder::XmlMarkup.new(:indent => options[:indent]) builder = options[:builder] @@ -100,24 +100,24 @@ class Hash [] else case entries.class.to_s # something weird with classes not matching here. maybe singleton methods breaking is_a? - when "Array" + when 'Array' entries.collect { |v| typecast_xml_value(v) } - when "Hash" + when 'Hash' [typecast_xml_value(entries)] else raise "can't typecast #{entries.inspect}" end end - elsif value['type'] == 'file' || - (value["__content__"] && (value.keys.size == 1 || value["__content__"].present?)) - content = value["__content__"] - if parser = ActiveSupport::XmlMini::PARSING[value["type"]] + elsif value['type'] == 'file' || + (value['__content__'] && (value.keys.size == 1 || value['__content__'].present?)) + content = value['__content__'] + if parser = ActiveSupport::XmlMini::PARSING[value['type']] parser.arity == 1 ? parser.call(content) : parser.call(content, value) else content end elsif value['type'] == 'string' && value['nil'] != 'true' - "" + '' # blank or nil parsed values are represented by nil elsif value.blank? || value['nil'] == 'true' nil @@ -131,7 +131,7 @@ class Hash # Turn { :files => { :file => #<StringIO> } into { :files => #<StringIO> } so it is compatible with # how multipart uploaded files from HTML appear - xml_value["file"].is_a?(StringIO) ? xml_value["file"] : xml_value + xml_value['file'].is_a?(StringIO) ? xml_value['file'] : xml_value end when 'Array' value.map! { |i| typecast_xml_value(i) } @@ -145,9 +145,9 @@ class Hash def unrename_keys(params) case params.class.to_s - when "Hash" - Hash[params.map { |k,v| [k.to_s.tr("-", "_"), unrename_keys(v)] } ] - when "Array" + when 'Hash' + Hash[params.map { |k,v| [k.to_s.tr('-', '_'), unrename_keys(v)] } ] + when 'Array' params.map { |v| unrename_keys(v) } else params diff --git a/activesupport/lib/active_support/core_ext/hash/deep_dup.rb b/activesupport/lib/active_support/core_ext/hash/deep_dup.rb index 447142605c..9ab179c566 100644 --- a/activesupport/lib/active_support/core_ext/hash/deep_dup.rb +++ b/activesupport/lib/active_support/core_ext/hash/deep_dup.rb @@ -3,8 +3,7 @@ class Hash def deep_dup duplicate = self.dup duplicate.each_pair do |k,v| - tv = duplicate[k] - duplicate[k] = tv.is_a?(Hash) && v.is_a?(Hash) ? tv.deep_dup : v + duplicate[k] = v.is_a?(Hash) ? v.deep_dup : v end duplicate end diff --git a/activesupport/lib/active_support/core_ext/hash/diff.rb b/activesupport/lib/active_support/core_ext/hash/diff.rb index b904f49fa8..855dcb38bc 100644 --- a/activesupport/lib/active_support/core_ext/hash/diff.rb +++ b/activesupport/lib/active_support/core_ext/hash/diff.rb @@ -7,7 +7,9 @@ class Hash # {1 => 2}.diff(1 => 3) # => {1 => 2} # {}.diff(1 => 2) # => {1 => 2} # {1 => 2, 3 => 4}.diff(1 => 2) # => {3 => 4} - def diff(h2) - dup.delete_if { |k, v| h2[k] == v }.merge!(h2.dup.delete_if { |k, v| has_key?(k) }) + def diff(other) + dup. + delete_if { |k, v| other[k] == v }. + merge!(other.dup.delete_if { |k, v| has_key?(k) }) end end diff --git a/activesupport/lib/active_support/core_ext/hash/except.rb b/activesupport/lib/active_support/core_ext/hash/except.rb index 89729df258..5a61906222 100644 --- a/activesupport/lib/active_support/core_ext/hash/except.rb +++ b/activesupport/lib/active_support/core_ext/hash/except.rb @@ -9,7 +9,7 @@ class Hash # for instance: # # {:a => 1}.with_indifferent_access.except(:a) # => {} - # {:a => 1}.with_indifferent_access.except("a") # => {} + # {:a => 1}.with_indifferent_access.except('a') # => {} # def except(*keys) dup.except!(*keys) diff --git a/activesupport/lib/active_support/core_ext/hash/keys.rb b/activesupport/lib/active_support/core_ext/hash/keys.rb index d8748b1138..230a84dabc 100644 --- a/activesupport/lib/active_support/core_ext/hash/keys.rb +++ b/activesupport/lib/active_support/core_ext/hash/keys.rb @@ -1,7 +1,11 @@ class Hash # Return a new hash with all keys converted to strings. def stringify_keys - dup.stringify_keys! + result = {} + keys.each do |key| + result[key.to_s] = self[key] + end + result end # Destructively convert all keys to strings. @@ -15,19 +19,22 @@ class Hash # Return a new hash with all keys converted to symbols, as long as # they respond to +to_sym+. def symbolize_keys - dup.symbolize_keys! + result = {} + keys.each do |key| + result[(key.to_sym rescue key)] = self[key] + end + result end + alias_method :to_options, :symbolize_keys # Destructively convert all keys to symbols, as long as they respond # to +to_sym+. def symbolize_keys! keys.each do |key| - self[(key.to_sym rescue key) || key] = delete(key) + self[(key.to_sym rescue key)] = delete(key) end self end - - alias_method :to_options, :symbolize_keys alias_method :to_options!, :symbolize_keys! # Validate all keys in a hash match *valid keys, raising ArgumentError on a mismatch. @@ -35,13 +42,13 @@ class Hash # as keys, this will fail. # # ==== Examples - # { :name => "Rob", :years => "28" }.assert_valid_keys(:name, :age) # => raises "ArgumentError: Unknown key: years" - # { :name => "Rob", :age => "28" }.assert_valid_keys("name", "age") # => raises "ArgumentError: Unknown key: name" - # { :name => "Rob", :age => "28" }.assert_valid_keys(:name, :age) # => passes, raises nothing + # { :name => 'Rob', :years => '28' }.assert_valid_keys(:name, :age) # => raises "ArgumentError: Unknown key: years" + # { :name => 'Rob', :age => '28' }.assert_valid_keys('name', 'age') # => raises "ArgumentError: Unknown key: name" + # { :name => 'Rob', :age => '28' }.assert_valid_keys(:name, :age) # => passes, raises nothing def assert_valid_keys(*valid_keys) valid_keys.flatten! each_key do |k| - raise(ArgumentError, "Unknown key: #{k}") unless valid_keys.include?(k) + raise ArgumentError.new("Unknown key: #{k}") unless valid_keys.include?(k) end end end diff --git a/activesupport/lib/active_support/core_ext/hash/reverse_merge.rb b/activesupport/lib/active_support/core_ext/hash/reverse_merge.rb index 01863a162b..6074103484 100644 --- a/activesupport/lib/active_support/core_ext/hash/reverse_merge.rb +++ b/activesupport/lib/active_support/core_ext/hash/reverse_merge.rb @@ -18,6 +18,5 @@ class Hash # right wins if there is no left merge!( other_hash ){|key,left,right| left } end - alias_method :reverse_update, :reverse_merge! end diff --git a/activesupport/lib/active_support/core_ext/hash/slice.rb b/activesupport/lib/active_support/core_ext/hash/slice.rb index 0484d8e5d8..b862b5ae2a 100644 --- a/activesupport/lib/active_support/core_ext/hash/slice.rb +++ b/activesupport/lib/active_support/core_ext/hash/slice.rb @@ -13,17 +13,15 @@ class Hash # valid_keys = [:mass, :velocity, :time] # search(options.slice(*valid_keys)) def slice(*keys) - keys = keys.map! { |key| convert_key(key) } if respond_to?(:convert_key) - hash = self.class.new - keys.each { |k| hash[k] = self[k] if has_key?(k) } - hash + keys.map! { |key| convert_key(key) } if respond_to?(:convert_key, true) + keys.each_with_object(self.class.new) { |k, hash| hash[k] = self[k] if has_key?(k) } end # Replaces the hash with only the given keys. - # Returns a hash contained the removed key/value pairs + # Returns a hash containing the removed key/value pairs. # {:a => 1, :b => 2, :c => 3, :d => 4}.slice!(:a, :b) # => {:c => 3, :d => 4} def slice!(*keys) - keys = keys.map! { |key| convert_key(key) } if respond_to?(:convert_key) + keys.map! { |key| convert_key(key) } if respond_to?(:convert_key, true) omit = slice(*self.keys - keys) hash = slice(*keys) replace(hash) @@ -33,8 +31,6 @@ class Hash # Removes and returns the key/value pairs matching the given keys. # {:a => 1, :b => 2, :c => 3, :d => 4}.extract!(:a, :b) # => {:a => 1, :b => 2} def extract!(*keys) - result = {} - keys.each {|key| result[key] = delete(key) } - result + keys.each_with_object({}) { |key, result| result[key] = delete(key) } end end |