diff options
11 files changed, 6 insertions, 181 deletions
diff --git a/actionpack/lib/action_controller/metal/conditional_get.rb b/actionpack/lib/action_controller/metal/conditional_get.rb index d6911ee2b5..29d1919ec5 100644 --- a/actionpack/lib/action_controller/metal/conditional_get.rb +++ b/actionpack/lib/action_controller/metal/conditional_get.rb @@ -1,7 +1,5 @@ # frozen_string_literal: true -require "active_support/core_ext/hash/keys" - module ActionController module ConditionalGet extend ActiveSupport::Concern diff --git a/actionpack/lib/action_controller/renderer.rb b/actionpack/lib/action_controller/renderer.rb index 2b4559c760..cf8c0159e2 100644 --- a/actionpack/lib/action_controller/renderer.rb +++ b/actionpack/lib/action_controller/renderer.rb @@ -1,7 +1,5 @@ # frozen_string_literal: true -require "active_support/core_ext/hash/keys" - module ActionController # ActionController::Renderer allows you to render arbitrary templates # without requirement of being in controller actions. diff --git a/activejob/lib/active_job/test_helper.rb b/activejob/lib/active_job/test_helper.rb index e0a71f4da8..f03780b91e 100644 --- a/activejob/lib/active_job/test_helper.rb +++ b/activejob/lib/active_job/test_helper.rb @@ -1,7 +1,6 @@ # frozen_string_literal: true require "active_support/core_ext/class/subclasses" -require "active_support/core_ext/hash/keys" module ActiveJob # Provides helper methods for testing Active Job diff --git a/activemodel/lib/active_model/validations.rb b/activemodel/lib/active_model/validations.rb index 7f14d102dd..f18f9a601a 100644 --- a/activemodel/lib/active_model/validations.rb +++ b/activemodel/lib/active_model/validations.rb @@ -1,8 +1,6 @@ # frozen_string_literal: true require "active_support/core_ext/array/extract_options" -require "active_support/core_ext/hash/keys" -require "active_support/core_ext/hash/except" module ActiveModel # == Active \Model \Validations diff --git a/activesupport/lib/active_support/core_ext/array.rb b/activesupport/lib/active_support/core_ext/array.rb index a2569c798b..88b6567712 100644 --- a/activesupport/lib/active_support/core_ext/array.rb +++ b/activesupport/lib/active_support/core_ext/array.rb @@ -6,5 +6,4 @@ require "active_support/core_ext/array/conversions" require "active_support/core_ext/array/extract" require "active_support/core_ext/array/extract_options" require "active_support/core_ext/array/grouping" -require "active_support/core_ext/array/prepend_and_append" require "active_support/core_ext/array/inquiry" diff --git a/activesupport/lib/active_support/core_ext/array/prepend_and_append.rb b/activesupport/lib/active_support/core_ext/array/prepend_and_append.rb index 661971d7cd..ba3739f640 100644 --- a/activesupport/lib/active_support/core_ext/array/prepend_and_append.rb +++ b/activesupport/lib/active_support/core_ext/array/prepend_and_append.rb @@ -1,9 +1,5 @@ # frozen_string_literal: true -class Array - # The human way of thinking about adding stuff to the end of a list is with append. - alias_method :append, :push unless [].respond_to?(:append) +require "active_support/deprecation" - # The human way of thinking about adding stuff to the beginning of a list is with prepend. - alias_method :prepend, :unshift unless [].respond_to?(:prepend) -end +ActiveSupport::Deprecation.warn "Ruby 2.5+ (required by Rails 6) provides Array#append and Array#prepend natively, so requiring active_support/core_ext/array/prepend_and_append is no longer necessary. Requiring it will raise LoadError in Rails 6.1." diff --git a/activesupport/lib/active_support/core_ext/hash/keys.rb b/activesupport/lib/active_support/core_ext/hash/keys.rb index bdf196ec3d..7d3495db2c 100644 --- a/activesupport/lib/active_support/core_ext/hash/keys.rb +++ b/activesupport/lib/active_support/core_ext/hash/keys.rb @@ -1,35 +1,6 @@ # frozen_string_literal: true class Hash - # Returns a new hash with all keys converted using the +block+ operation. - # - # hash = { name: 'Rob', age: '28' } - # - # hash.transform_keys { |key| key.to_s.upcase } # => {"NAME"=>"Rob", "AGE"=>"28"} - # - # If you do not provide a +block+, it will return an Enumerator - # for chaining with other methods: - # - # hash.transform_keys.with_index { |k, i| [k, i].join } # => {"name0"=>"Rob", "age1"=>"28"} - def transform_keys - return enum_for(:transform_keys) { size } unless block_given? - result = {} - each_key do |key| - result[yield(key)] = self[key] - end - result - end unless method_defined? :transform_keys - - # Destructively converts all keys using the +block+ operations. - # Same as +transform_keys+ but modifies +self+. - def transform_keys! - return enum_for(:transform_keys!) { size } unless block_given? - keys.each do |key| - self[yield(key)] = delete(key) - end - self - end unless method_defined? :transform_keys! - # Returns a new hash with all keys converted to strings. # # hash = { name: 'Rob', age: '28' } diff --git a/activesupport/lib/active_support/inflector/inflections.rb b/activesupport/lib/active_support/inflector/inflections.rb index 2b86d233e5..fa087c4dd6 100644 --- a/activesupport/lib/active_support/inflector/inflections.rb +++ b/activesupport/lib/active_support/inflector/inflections.rb @@ -1,7 +1,6 @@ # frozen_string_literal: true require "concurrent/map" -require "active_support/core_ext/array/prepend_and_append" require "active_support/i18n" require "active_support/deprecation" diff --git a/activesupport/test/core_ext/array/prepend_append_test.rb b/activesupport/test/core_ext/array/prepend_append_test.rb index c34acd66ad..8573dbd5a6 100644 --- a/activesupport/test/core_ext/array/prepend_append_test.rb +++ b/activesupport/test/core_ext/array/prepend_append_test.rb @@ -1,14 +1,11 @@ # frozen_string_literal: true require "abstract_unit" -require "active_support/core_ext/array" class PrependAppendTest < ActiveSupport::TestCase - def test_append - assert_equal [1, 2], [1].append(2) - end - - def test_prepend - assert_equal [2, 1], [1].prepend(2) + def test_requiring_prepend_and_append_is_deprecated + assert_deprecated do + require "active_support/core_ext/array/prepend_and_append" + end end end diff --git a/activesupport/test/core_ext/hash/transform_keys_test.rb b/activesupport/test/core_ext/hash/transform_keys_test.rb deleted file mode 100644 index b9e41f7b25..0000000000 --- a/activesupport/test/core_ext/hash/transform_keys_test.rb +++ /dev/null @@ -1,64 +0,0 @@ -# frozen_string_literal: true - -require "abstract_unit" -require "active_support/core_ext/hash/keys" - -class TransformKeysTest < ActiveSupport::TestCase - test "transform_keys returns a new hash with the keys computed from the block" do - original = { a: "a", b: "b" } - mapped = original.transform_keys { |k| "#{k}!".to_sym } - - assert_equal({ a: "a", b: "b" }, original) - assert_equal({ a!: "a", b!: "b" }, mapped) - end - - test "transform_keys! modifies the keys of the original" do - original = { a: "a", b: "b" } - mapped = original.transform_keys! { |k| "#{k}!".to_sym } - - assert_equal({ a!: "a", b!: "b" }, original) - assert_same original, mapped - end - - test "transform_keys returns a sized Enumerator if no block is given" do - original = { a: "a", b: "b" } - enumerator = original.transform_keys - assert_equal original.size, enumerator.size - assert_equal Enumerator, enumerator.class - end - - test "transform_keys! returns a sized Enumerator if no block is given" do - original = { a: "a", b: "b" } - enumerator = original.transform_keys! - assert_equal original.size, enumerator.size - assert_equal Enumerator, enumerator.class - end - - test "transform_keys is chainable with Enumerable methods" do - original = { a: "a", b: "b" } - mapped = original.transform_keys.with_index { |k, i| [k, i].join.to_sym } - assert_equal({ a0: "a", b1: "b" }, mapped) - end - - test "transform_keys! is chainable with Enumerable methods" do - original = { a: "a", b: "b" } - original.transform_keys!.with_index { |k, i| [k, i].join.to_sym } - assert_equal({ a0: "a", b1: "b" }, original) - end - - test "transform_keys returns a Hash instance when self is inherited from Hash" do - class HashDescendant < ::Hash - def initialize(elements = nil) - super(elements) - (elements || {}).each_pair { |key, value| self[key] = value } - end - end - - original = HashDescendant.new(a: "a", b: "b") - mapped = original.transform_keys { |k| "#{k}!".to_sym } - - assert_equal({ a: "a", b: "b" }, original) - assert_equal({ a!: "a", b!: "b" }, mapped) - assert_equal(::Hash, mapped.class) - end -end diff --git a/guides/source/active_support_core_extensions.md b/guides/source/active_support_core_extensions.md index 6b0554bb5f..428271d9b7 100644 --- a/guides/source/active_support_core_extensions.md +++ b/guides/source/active_support_core_extensions.md @@ -2132,30 +2132,6 @@ The methods `second`, `third`, `fourth`, and `fifth` return the corresponding el NOTE: Defined in `active_support/core_ext/array/access.rb`. -### Adding Elements - -#### `prepend` - -This method is an alias of `Array#unshift`. - -```ruby -%w(a b c d).prepend('e') # => ["e", "a", "b", "c", "d"] -[].prepend(10) # => [10] -``` - -NOTE: Defined in `active_support/core_ext/array/prepend_and_append.rb`. - -#### `append` - -This method is an alias of `Array#<<`. - -```ruby -%w(a b c d).append('e') # => ["a", "b", "c", "d", "e"] -[].append([1,2]) # => [[1, 2]] -``` - -NOTE: Defined in `active_support/core_ext/array/prepend_and_append.rb`. - ### Extracting The method `extract!` removes and returns the elements for which the block returns a true value. @@ -2646,48 +2622,6 @@ There's also the bang variant `except!` that removes keys in the very receiver. NOTE: Defined in `active_support/core_ext/hash/except.rb`. -#### `transform_keys` and `transform_keys!` - -The method `transform_keys` accepts a block and returns a hash that has applied the block operations to each of the keys in the receiver: - -```ruby -{nil => nil, 1 => 1, a: :a}.transform_keys { |key| key.to_s.upcase } -# => {"" => nil, "1" => 1, "A" => :a} -``` - -In case of key collision, one of the values will be chosen. The chosen value may not always be the same given the same hash: - -```ruby -{"a" => 1, a: 2}.transform_keys { |key| key.to_s.upcase } -# The result could either be -# => {"A"=>2} -# or -# => {"A"=>1} -``` - -This method may be useful for example to build specialized conversions. For instance `stringify_keys` and `symbolize_keys` use `transform_keys` to perform their key conversions: - -```ruby -def stringify_keys - transform_keys { |key| key.to_s } -end -... -def symbolize_keys - transform_keys { |key| key.to_sym rescue key } -end -``` - -There's also the bang variant `transform_keys!` that applies the block operations to keys in the very receiver. - -Besides that, one can use `deep_transform_keys` and `deep_transform_keys!` to perform the block operation on all the keys in the given hash and all the hashes nested into it. An example of the result is: - -```ruby -{nil => nil, 1 => 1, nested: {a: 3, 5 => 5}}.deep_transform_keys { |key| key.to_s.upcase } -# => {""=>nil, "1"=>1, "NESTED"=>{"A"=>3, "5"=>5}} -``` - -NOTE: Defined in `active_support/core_ext/hash/keys.rb`. - #### `stringify_keys` and `stringify_keys!` The method `stringify_keys` returns a hash that has a stringified version of the keys in the receiver. It does so by sending `to_s` to them: |