Get rid of `Arel::Nodes::Values`

That is completely covered by `Arel::Nodes::ValuesList`.

Related https://github.com/rails/arel/pull/484.

7 files changed, 9 insertions, 60 deletions

diff --git a/activerecord/lib/arel/insert_manager.rb b/activerecord/lib/arel/insert_manager.rb
index c90fc33a48..cb31e3060b 100644
--- a/activerecord/lib/arel/insert_manager.rb
+++ b/activerecord/lib/arel/insert_manager.rb
@@ -33,13 +33,13 @@ module Arel # :nodoc: all
           @ast.columns << column
           values << value
         end
-        @ast.values = create_values values, @ast.columns
+        @ast.values = create_values(values)
       end
       self
     end
 
-    def create_values(values, columns)
-      Nodes::Values.new values, columns
+    def create_values(values)
+      Nodes::ValuesList.new([values])
     end
 
     def create_values_list(rows)
diff --git a/activerecord/lib/arel/nodes.rb b/activerecord/lib/arel/nodes.rb
index 5af0e532e2..2f6dd9bc45 100644
--- a/activerecord/lib/arel/nodes.rb
+++ b/activerecord/lib/arel/nodes.rb
@@ -45,7 +45,6 @@ require "arel/nodes/and"
 require "arel/nodes/function"
 require "arel/nodes/count"
 require "arel/nodes/extract"
-require "arel/nodes/values"
 require "arel/nodes/values_list"
 require "arel/nodes/named_function"
 
diff --git a/activerecord/lib/arel/nodes/values.rb b/activerecord/lib/arel/nodes/values.rb
deleted file mode 100644
index 650248dc04..0000000000
--- a/activerecord/lib/arel/nodes/values.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-# frozen_string_literal: true
-
-module Arel # :nodoc: all
-  module Nodes
-    class Values < Arel::Nodes::Binary
-      alias :expressions :left
-      alias :expressions= :left=
-      alias :columns :right
-      alias :columns= :right=
-
-      def initialize(exprs, columns = [])
-        super
-      end
-    end
-  end
-end
diff --git a/activerecord/lib/arel/nodes/values_list.rb b/activerecord/lib/arel/nodes/values_list.rb
index 27109848e4..1a9d9ebf01 100644
--- a/activerecord/lib/arel/nodes/values_list.rb
+++ b/activerecord/lib/arel/nodes/values_list.rb
@@ -2,23 +2,8 @@
 
 module Arel # :nodoc: all
   module Nodes
-    class ValuesList < Node
-      attr_reader :rows
-
-      def initialize(rows)
-        @rows = rows
-        super()
-      end
-
-      def hash
-        @rows.hash
-      end
-
-      def eql?(other)
-        self.class == other.class &&
-          self.rows == other.rows
-      end
-      alias :== :eql?
+    class ValuesList < Unary
+      alias :rows :expr
     end
   end
 end
diff --git a/activerecord/lib/arel/visitors/depth_first.rb b/activerecord/lib/arel/visitors/depth_first.rb
index 892d670c79..109afb7402 100644
--- a/activerecord/lib/arel/visitors/depth_first.rb
+++ b/activerecord/lib/arel/visitors/depth_first.rb
@@ -36,6 +36,7 @@ module Arel # :nodoc: all
         alias :visit_Arel_Nodes_Descending        :unary
         alias :visit_Arel_Nodes_UnqualifiedColumn :unary
         alias :visit_Arel_Nodes_OptimizerHints    :unary
+        alias :visit_Arel_Nodes_ValuesList        :unary
 
         def function(o)
           visit o.expressions
@@ -103,7 +104,6 @@ module Arel # :nodoc: all
         alias :visit_Arel_Nodes_Regexp             :binary
         alias :visit_Arel_Nodes_RightOuterJoin     :binary
         alias :visit_Arel_Nodes_TableAlias         :binary
-        alias :visit_Arel_Nodes_Values             :binary
         alias :visit_Arel_Nodes_When               :binary
 
         def visit_Arel_Nodes_StringJoin(o)
diff --git a/activerecord/lib/arel/visitors/dot.rb b/activerecord/lib/arel/visitors/dot.rb
index ffcbb7a7ab..37803ce0c0 100644
--- a/activerecord/lib/arel/visitors/dot.rb
+++ b/activerecord/lib/arel/visitors/dot.rb
@@ -46,8 +46,8 @@ module Arel # :nodoc: all
           visit_edge o, "distinct"
         end
 
-        def visit_Arel_Nodes_Values(o)
-          visit_edge o, "expressions"
+        def visit_Arel_Nodes_ValuesList(o)
+          visit_edge o, "rows"
         end
 
         def visit_Arel_Nodes_StringJoin(o)
diff --git a/activerecord/lib/arel/visitors/to_sql.rb b/activerecord/lib/arel/visitors/to_sql.rb
index 7e3e265208..099bf5efb0 100644
--- a/activerecord/lib/arel/visitors/to_sql.rb
+++ b/activerecord/lib/arel/visitors/to_sql.rb
@@ -159,7 +159,7 @@ module Arel # :nodoc: all
               when Nodes::SqlLiteral, Nodes::BindParam
                 collector = visit(value, collector)
               else
-                collector << quote(value)
+                collector << quote(value).to_s
               end
               collector << COMMA unless k == row_len
             end
@@ -169,25 +169,6 @@ module Arel # :nodoc: all
           collector
         end
 
-        def visit_Arel_Nodes_Values(o, collector)
-          collector << "VALUES ("
-
-          len = o.expressions.length - 1
-          o.expressions.each_with_index { |value, i|
-            case value
-            when Nodes::SqlLiteral, Nodes::BindParam
-              collector = visit value, collector
-            else
-              collector << quote(value).to_s
-            end
-            unless i == len
-              collector << COMMA
-            end
-          }
-
-          collector << ")"
-        end
-
         def visit_Arel_Nodes_SelectStatement(o, collector)
           if o.with
             collector = visit o.with, collector