Pass symbol as an argument instead of a block

14 files changed, 23 insertions, 25 deletions

diff --git a/actionpack/lib/abstract_controller/base.rb b/actionpack/lib/abstract_controller/base.rb
index 4026dab2ce..51c661f735 100644
--- a/actionpack/lib/abstract_controller/base.rb
+++ b/actionpack/lib/abstract_controller/base.rb
@@ -82,7 +82,7 @@ module AbstractController
             # Except for public instance methods of Base and its ancestors
             internal_methods +
             # Be sure to include shadowed public instance methods of this class
-            public_instance_methods(false)).uniq.map { |x| x.to_s } -
+            public_instance_methods(false)).uniq.map(&:to_s) -
             # And always exclude explicitly hidden actions
             hidden_actions.to_a
 
diff --git a/actionpack/lib/action_controller/metal/testing.rb b/actionpack/lib/action_controller/metal/testing.rb
index dd8da4b5dc..d01927b7cb 100644
--- a/actionpack/lib/action_controller/metal/testing.rb
+++ b/actionpack/lib/action_controller/metal/testing.rb
@@ -24,7 +24,7 @@ module ActionController
 
     module ClassMethods
       def before_filters
-        _process_action_callbacks.find_all{|x| x.kind == :before}.map{|x| x.name}
+        _process_action_callbacks.find_all{|x| x.kind == :before}.map(&:name)
       end
     end
   end
diff --git a/actionpack/lib/action_dispatch/http/mime_type.rb b/actionpack/lib/action_dispatch/http/mime_type.rb
index b9d5009683..047a17937a 100644
--- a/actionpack/lib/action_dispatch/http/mime_type.rb
+++ b/actionpack/lib/action_dispatch/http/mime_type.rb
@@ -6,7 +6,7 @@ require 'active_support/core_ext/string/starts_ends_with'
 module Mime
   class Mimes < Array
     def symbols
-      @symbols ||= map { |m| m.to_sym }
+      @symbols ||= map(&:to_sym)
     end
 
     %w(<< concat shift unshift push pop []= clear compact! collect!
diff --git a/actionpack/lib/action_dispatch/journey/nfa/transition_table.rb b/actionpack/lib/action_dispatch/journey/nfa/transition_table.rb
index 66e414213a..e65f7238ab 100644
--- a/actionpack/lib/action_dispatch/journey/nfa/transition_table.rb
+++ b/actionpack/lib/action_dispatch/journey/nfa/transition_table.rb
@@ -107,7 +107,7 @@ module ActionDispatch
         end
 
         def alphabet
-          inverted.values.flat_map(&:keys).compact.uniq.sort_by { |x| x.to_s }
+          inverted.values.flat_map(&:keys).compact.uniq.sort_by(&:to_s)
         end
 
         # Returns a set of NFA states reachable from some NFA state +s+ in set
diff --git a/actionpack/lib/action_dispatch/journey/path/pattern.rb b/actionpack/lib/action_dispatch/journey/path/pattern.rb
index 3af940a02f..dca83e806c 100644
--- a/actionpack/lib/action_dispatch/journey/path/pattern.rb
+++ b/actionpack/lib/action_dispatch/journey/path/pattern.rb
@@ -42,7 +42,7 @@ module ActionDispatch
         end
 
         def names
-          @names ||= spec.grep(Nodes::Symbol).map { |n| n.name }
+          @names ||= spec.grep(Nodes::Symbol).map(&:name)
         end
 
         def required_names
@@ -52,7 +52,7 @@ module ActionDispatch
         def optional_names
           @optional_names ||= spec.grep(Nodes::Group).flat_map { |group|
             group.grep(Nodes::Symbol)
-          }.map { |n| n.name }.uniq
+          }.map(&:name).uniq
         end
 
         class RegexpOffsets < Journey::Visitors::Visitor # :nodoc:
diff --git a/actionpack/lib/action_dispatch/journey/route.rb b/actionpack/lib/action_dispatch/journey/route.rb
index 9f0a3af902..3b609a184d 100644
--- a/actionpack/lib/action_dispatch/journey/route.rb
+++ b/actionpack/lib/action_dispatch/journey/route.rb
@@ -60,7 +60,7 @@ module ActionDispatch
       end
 
       def parts
-        @parts ||= segments.map { |n| n.to_sym }
+        @parts ||= segments.map(&:to_sym)
       end
       alias :segment_keys :parts
 
@@ -69,11 +69,11 @@ module ActionDispatch
       end
 
       def optional_parts
-        path.optional_names.map { |n| n.to_sym }
+        path.optional_names.map(&:to_sym)
       end
 
       def required_parts
-        @required_parts ||= path.required_names.map { |n| n.to_sym }
+        @required_parts ||= path.required_names.map(&:to_sym)
       end
 
       def required_default?(key)
diff --git a/actionpack/lib/action_dispatch/journey/router.rb b/actionpack/lib/action_dispatch/journey/router.rb
index 9131b65380..2b036796ab 100644
--- a/actionpack/lib/action_dispatch/journey/router.rb
+++ b/actionpack/lib/action_dispatch/journey/router.rb
@@ -68,8 +68,8 @@ module ActionDispatch
 
       def visualizer
         tt     = GTG::Builder.new(ast).transition_table
-        groups = partitioned_routes.first.map(&:ast).group_by { |a| a.to_s }
-        asts   = groups.values.map { |v| v.first }
+        groups = partitioned_routes.first.map(&:ast).group_by(&:to_s)
+        asts   = groups.values.map(&:first)
         tt.visualizer(asts)
       end
 
diff --git a/actionpack/lib/action_dispatch/routing/inspector.rb b/actionpack/lib/action_dispatch/routing/inspector.rb
index cfe2237512..df5ebb6751 100644
--- a/actionpack/lib/action_dispatch/routing/inspector.rb
+++ b/actionpack/lib/action_dispatch/routing/inspector.rb
@@ -114,9 +114,7 @@ module ActionDispatch
       def collect_routes(routes)
         routes.collect do |route|
           RouteWrapper.new(route)
-        end.reject do |route|
-          route.internal?
-        end.collect do |route|
+        end.reject(&:internal?).collect do |route|
           collect_engine_routes(route)
 
           { name:   route.name,
diff --git a/actionpack/lib/action_dispatch/routing/route_set.rb b/actionpack/lib/action_dispatch/routing/route_set.rb
index 6e3ae36a7f..c2cacbd288 100644
--- a/actionpack/lib/action_dispatch/routing/route_set.rb
+++ b/actionpack/lib/action_dispatch/routing/route_set.rb
@@ -543,7 +543,7 @@ module ActionDispatch
         path = conditions.delete :path_info
         ast  = conditions.delete :parsed_path_info
         path = build_path(path, ast, requirements, anchor)
-        conditions = build_conditions(conditions, path.names.map { |x| x.to_sym })
+        conditions = build_conditions(conditions, path.names.map(&:to_sym))
 
         route = @set.add_route(app, path, conditions, defaults, name)
         named_routes[name] = route if name
@@ -605,7 +605,7 @@ module ActionDispatch
           if name == :controller
             value
           elsif value.is_a?(Array)
-            value.map { |v| v.to_param }.join('/')
+            value.map(&:to_param).join('/')
           elsif param = value.to_param
             param
           end
diff --git a/actionpack/lib/action_dispatch/testing/test_request.rb b/actionpack/lib/action_dispatch/testing/test_request.rb
index de3dc5f924..4b9a088265 100644
--- a/actionpack/lib/action_dispatch/testing/test_request.rb
+++ b/actionpack/lib/action_dispatch/testing/test_request.rb
@@ -60,7 +60,7 @@ module ActionDispatch
 
     def accept=(mime_types)
       @env.delete('action_dispatch.request.accepts')
-      @env['HTTP_ACCEPT'] = Array(mime_types).collect { |mime_type| mime_type.to_s }.join(",")
+      @env['HTTP_ACCEPT'] = Array(mime_types).collect(&:to_s).join(",")
     end
 
     alias :rack_cookies :cookies
diff --git a/actionpack/test/abstract_unit.rb b/actionpack/test/abstract_unit.rb
index 63c9ab04c9..57c076eac6 100644
--- a/actionpack/test/abstract_unit.rb
+++ b/actionpack/test/abstract_unit.rb
@@ -53,7 +53,7 @@ I18n.enforce_available_locales = false
 # Register danish language for testing
 I18n.backend.store_translations 'da', {}
 I18n.backend.store_translations 'pt-BR', {}
-ORIGINAL_LOCALES = I18n.available_locales.map {|locale| locale.to_s }.sort
+ORIGINAL_LOCALES = I18n.available_locales.map(&:to_s).sort
 
 FIXTURE_LOAD_PATH = File.join(File.dirname(__FILE__), 'fixtures')
 FIXTURES = Pathname.new(FIXTURE_LOAD_PATH)
diff --git a/actionpack/test/controller/filters_test.rb b/actionpack/test/controller/filters_test.rb
index b2b01b3fa9..38533dbf23 100644
--- a/actionpack/test/controller/filters_test.rb
+++ b/actionpack/test/controller/filters_test.rb
@@ -10,7 +10,7 @@ class ActionController::Base
 
     def before_actions
       filters = _process_action_callbacks.select { |c| c.kind == :before }
-      filters.map! { |c| c.raw_filter }
+      filters.map!(&:raw_filter)
     end
   end
 
diff --git a/actionpack/test/controller/routing_test.rb b/actionpack/test/controller/routing_test.rb
index f46b32e019..9caa5cbe57 100644
--- a/actionpack/test/controller/routing_test.rb
+++ b/actionpack/test/controller/routing_test.rb
@@ -884,13 +884,13 @@ class RouteSetTest < ActiveSupport::TestCase
     set.draw { get ':controller/(:action(/:id))' }
     path, extras = set.generate_extras(:controller => "foo", :action => "bar", :id => 15, :this => "hello", :that => "world")
     assert_equal "/foo/bar/15", path
-    assert_equal %w(that this), extras.map { |e| e.to_s }.sort
+    assert_equal %w(that this), extras.map(&:to_s).sort
   end
 
   def test_extra_keys
     set.draw { get ':controller/:action/:id' }
     extras = set.extra_keys(:controller => "foo", :action => "bar", :id => 15, :this => "hello", :that => "world")
-    assert_equal %w(that this), extras.map { |e| e.to_s }.sort
+    assert_equal %w(that this), extras.map(&:to_s).sort
   end
 
   def test_generate_extras_not_first
@@ -900,7 +900,7 @@ class RouteSetTest < ActiveSupport::TestCase
     end
     path, extras = set.generate_extras(:controller => "foo", :action => "bar", :id => 15, :this => "hello", :that => "world")
     assert_equal "/foo/bar/15", path
-    assert_equal %w(that this), extras.map { |e| e.to_s }.sort
+    assert_equal %w(that this), extras.map(&:to_s).sort
   end
 
   def test_generate_not_first
@@ -918,7 +918,7 @@ class RouteSetTest < ActiveSupport::TestCase
       get ':controller/:action/:id'
     end
     extras = set.extra_keys(:controller => "foo", :action => "bar", :id => 15, :this => "hello", :that => "world")
-    assert_equal %w(that this), extras.map { |e| e.to_s }.sort
+    assert_equal %w(that this), extras.map(&:to_s).sort
   end
 
   def test_draw
diff --git a/actionpack/test/dispatch/mime_type_test.rb b/actionpack/test/dispatch/mime_type_test.rb
index ad6335f132..3017a9c2d6 100644
--- a/actionpack/test/dispatch/mime_type_test.rb
+++ b/actionpack/test/dispatch/mime_type_test.rb
@@ -83,7 +83,7 @@ class MimeTypeTest < ActiveSupport::TestCase
   test "parse broken acceptlines" do
     accept = "text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/*,,*/*;q=0.5"
     expect = [Mime::HTML, Mime::XML, "image/*", Mime::TEXT, Mime::ALL]
-    assert_equal expect, Mime::Type.parse(accept).collect { |c| c.to_s }
+    assert_equal expect, Mime::Type.parse(accept).collect(&:to_s)
   end
 
   # Accept header send with user HTTP_USER_AGENT: Mozilla/4.0
@@ -91,7 +91,7 @@ class MimeTypeTest < ActiveSupport::TestCase
   test "parse other broken acceptlines" do
     accept = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword,  , pronto/1.00.00, sslvpn/1.00.00.00, */*"
     expect = ['image/gif', 'image/x-xbitmap', 'image/jpeg','image/pjpeg', 'application/x-shockwave-flash', 'application/vnd.ms-excel', 'application/vnd.ms-powerpoint', 'application/msword', 'pronto/1.00.00', 'sslvpn/1.00.00.00', Mime::ALL]
-    assert_equal expect, Mime::Type.parse(accept).collect { |c| c.to_s }
+    assert_equal expect, Mime::Type.parse(accept).collect(&:to_s)
   end
 
   test "custom type" do