Pass symbol as an argument instead of a block

9 files changed, 12 insertions, 12 deletions

diff --git a/activesupport/lib/active_support/core_ext/array/conversions.rb b/activesupport/lib/active_support/core_ext/array/conversions.rb
index 76ffd23ed1..080e3b5ef7 100644
--- a/activesupport/lib/active_support/core_ext/array/conversions.rb
+++ b/activesupport/lib/active_support/core_ext/array/conversions.rb
@@ -92,7 +92,7 @@ class Array
       if empty?
         'null'
       else
-        collect { |element| element.id }.join(',')
+        collect(&:id).join(',')
       end
     else
       to_default_s
diff --git a/activesupport/lib/active_support/core_ext/hash/keys.rb b/activesupport/lib/active_support/core_ext/hash/keys.rb
index f4105f66b0..9297a59c46 100644
--- a/activesupport/lib/active_support/core_ext/hash/keys.rb
+++ b/activesupport/lib/active_support/core_ext/hash/keys.rb
@@ -31,13 +31,13 @@ class Hash
   #   hash.stringify_keys
   #   # => {"name"=>"Rob", "age"=>"28"}
   def stringify_keys
-    transform_keys{ |key| key.to_s }
+    transform_keys(&:to_s)
   end
 
   # Destructively convert all keys to strings. Same as
   # +stringify_keys+, but modifies +self+.
   def stringify_keys!
-    transform_keys!{ |key| key.to_s }
+    transform_keys!(&:to_s)
   end
 
   # Returns a new hash with all keys converted to symbols, as long as
@@ -105,14 +105,14 @@ class Hash
   #   hash.deep_stringify_keys
   #   # => {"person"=>{"name"=>"Rob", "age"=>"28"}}
   def deep_stringify_keys
-    deep_transform_keys{ |key| key.to_s }
+    deep_transform_keys(&:to_s)
   end
 
   # Destructively convert all keys to strings.
   # This includes the keys from the root hash and from all
   # nested hashes and arrays.
   def deep_stringify_keys!
-    deep_transform_keys!{ |key| key.to_s }
+    deep_transform_keys!(&:to_s)
   end
 
   # Returns a new hash with all keys converted to symbols, as long as
diff --git a/activesupport/lib/active_support/core_ext/object/deep_dup.rb b/activesupport/lib/active_support/core_ext/object/deep_dup.rb
index 2e99f4a1b8..0191d2e973 100644
--- a/activesupport/lib/active_support/core_ext/object/deep_dup.rb
+++ b/activesupport/lib/active_support/core_ext/object/deep_dup.rb
@@ -25,7 +25,7 @@ class Array
   #   array[1][2] # => nil
   #   dup[1][2]   # => 4
   def deep_dup
-    map { |it| it.deep_dup }
+    map(&:deep_dup)
   end
 end
 
diff --git a/activesupport/lib/active_support/core_ext/object/instance_variables.rb b/activesupport/lib/active_support/core_ext/object/instance_variables.rb
index 755e1c6b16..593a7a4940 100644
--- a/activesupport/lib/active_support/core_ext/object/instance_variables.rb
+++ b/activesupport/lib/active_support/core_ext/object/instance_variables.rb
@@ -23,6 +23,6 @@ class Object
   #
   #   C.new(0, 1).instance_variable_names # => ["@y", "@x"]
   def instance_variable_names
-    instance_variables.map { |var| var.to_s }
+    instance_variables.map(&:to_s)
   end
 end
diff --git a/activesupport/lib/active_support/core_ext/object/to_query.rb b/activesupport/lib/active_support/core_ext/object/to_query.rb
index ccd568bbf5..ec5ace4e16 100644
--- a/activesupport/lib/active_support/core_ext/object/to_query.rb
+++ b/activesupport/lib/active_support/core_ext/object/to_query.rb
@@ -38,7 +38,7 @@ class Array
   # Calls <tt>to_param</tt> on all its elements and joins the result with
   # slashes. This is used by <tt>url_for</tt> in Action Pack.
   def to_param
-    collect { |e| e.to_param }.join '/'
+    collect(&:to_param).join '/'
   end
 
   # Converts an array into a string suitable for use as a URL query string,
diff --git a/activesupport/lib/active_support/dependencies.rb b/activesupport/lib/active_support/dependencies.rb
index 65a370dd30..ff8c0fd310 100644
--- a/activesupport/lib/active_support/dependencies.rb
+++ b/activesupport/lib/active_support/dependencies.rb
@@ -742,7 +742,7 @@ module ActiveSupport #:nodoc:
     protected
       def log_call(*args)
         if log_activity?
-          arg_str = args.collect { |arg| arg.inspect } * ', '
+          arg_str = args.collect(&:inspect) * ', '
           /in `([a-z_\?\!]+)'/ =~ caller(1).first
           selector = $1 || '<unknown>'
           log "called #{selector}(#{arg_str})"
diff --git a/activesupport/lib/active_support/number_helper/number_to_human_converter.rb b/activesupport/lib/active_support/number_helper/number_to_human_converter.rb
index 9a3dc526ae..6940beb318 100644
--- a/activesupport/lib/active_support/number_helper/number_to_human_converter.rb
+++ b/activesupport/lib/active_support/number_helper/number_to_human_converter.rb
@@ -59,7 +59,7 @@ module ActiveSupport
             translate_in_locale("human.decimal_units.units", raise: true)
           else
             raise ArgumentError, ":units must be a Hash or String translation scope."
-          end.keys.map { |e_name| INVERTED_DECIMAL_UNITS[e_name] }.sort_by { |e| -e }
+          end.keys.map { |e_name| INVERTED_DECIMAL_UNITS[e_name] }.sort_by(&:-@)
         end
     end
   end
diff --git a/activesupport/lib/active_support/testing/assertions.rb b/activesupport/lib/active_support/testing/assertions.rb
index 11cca82995..8b649c193f 100644
--- a/activesupport/lib/active_support/testing/assertions.rb
+++ b/activesupport/lib/active_support/testing/assertions.rb
@@ -66,7 +66,7 @@ module ActiveSupport
         exps = expressions.map { |e|
           e.respond_to?(:call) ? e : lambda { eval(e, block.binding) }
         }
-        before = exps.map { |e| e.call }
+        before = exps.map(&:call)
 
         yield
 
diff --git a/activesupport/lib/active_support/values/time_zone.rb b/activesupport/lib/active_support/values/time_zone.rb
index 55533a5d40..fd05a5459c 100644
--- a/activesupport/lib/active_support/values/time_zone.rb
+++ b/activesupport/lib/active_support/values/time_zone.rb
@@ -237,7 +237,7 @@ module ActiveSupport
         case arg
           when String
           begin
-            @lazy_zones_map[arg] ||= create(arg).tap { |tz| tz.utc_offset }
+            @lazy_zones_map[arg] ||= create(arg).tap(&:utc_offset)
           rescue TZInfo::InvalidTimezoneIdentifier
             nil
           end