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-rw-r--r--activesupport/lib/active_support/core_ext/array.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/array/prepend_and_append.rb8
-rw-r--r--activesupport/lib/active_support/core_ext/hash/keys.rb29
-rw-r--r--activesupport/lib/active_support/inflector/inflections.rb1
-rw-r--r--activesupport/test/core_ext/array/prepend_append_test.rb11
-rw-r--r--activesupport/test/core_ext/hash/transform_keys_test.rb64
6 files changed, 6 insertions, 108 deletions
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