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-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb2
-rw-r--r--activerecord/lib/arel/nodes/node.rb8
-rw-r--r--activerecord/lib/arel/visitors.rb1
-rw-r--r--activerecord/lib/arel/visitors/depth_first.rb203
4 files changed, 1 insertions, 213 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
index 13f94a4722..88367c79a1 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
@@ -100,7 +100,7 @@ module ActiveRecord
def index_exists?(table_name, column_name, options = {})
column_names = Array(column_name).map(&:to_s)
checks = []
- checks << lambda { |i| i.columns == column_names }
+ checks << lambda { |i| Array(i.columns) == column_names }
checks << lambda { |i| i.unique } if options[:unique]
checks << lambda { |i| i.name == options[:name].to_s } if options[:name]
diff --git a/activerecord/lib/arel/nodes/node.rb b/activerecord/lib/arel/nodes/node.rb
index 8086102bde..0416ff58de 100644
--- a/activerecord/lib/arel/nodes/node.rb
+++ b/activerecord/lib/arel/nodes/node.rb
@@ -6,7 +6,6 @@ module Arel # :nodoc: all
# Abstract base class for all AST nodes
class Node
include Arel::FactoryMethods
- include Enumerable
###
# Factory method to create a Nodes::Not node that has the recipient of
@@ -38,13 +37,6 @@ module Arel # :nodoc: all
collector = engine.connection.visitor.accept self, collector
collector.value
end
-
- # Iterate through AST, nodes will be yielded depth-first
- def each(&block)
- return enum_for(:each) unless block_given?
-
- ::Arel::Visitors::DepthFirst.new(block).accept self
- end
end
end
end
diff --git a/activerecord/lib/arel/visitors.rb b/activerecord/lib/arel/visitors.rb
index e350f52e65..a1097f6750 100644
--- a/activerecord/lib/arel/visitors.rb
+++ b/activerecord/lib/arel/visitors.rb
@@ -1,7 +1,6 @@
# frozen_string_literal: true
require "arel/visitors/visitor"
-require "arel/visitors/depth_first"
require "arel/visitors/to_sql"
require "arel/visitors/sqlite"
require "arel/visitors/postgresql"
diff --git a/activerecord/lib/arel/visitors/depth_first.rb b/activerecord/lib/arel/visitors/depth_first.rb
deleted file mode 100644
index 98c3f92cf1..0000000000
--- a/activerecord/lib/arel/visitors/depth_first.rb
+++ /dev/null
@@ -1,203 +0,0 @@
-# frozen_string_literal: true
-
-module Arel # :nodoc: all
- module Visitors
- class DepthFirst < Arel::Visitors::Visitor
- def initialize(block = nil)
- @block = block || Proc.new
- super()
- end
-
- private
- def visit(o, _ = nil)
- super
- @block.call o
- end
-
- def unary(o)
- visit o.expr
- end
- alias :visit_Arel_Nodes_Else :unary
- alias :visit_Arel_Nodes_Group :unary
- alias :visit_Arel_Nodes_Cube :unary
- alias :visit_Arel_Nodes_RollUp :unary
- alias :visit_Arel_Nodes_GroupingSet :unary
- alias :visit_Arel_Nodes_GroupingElement :unary
- alias :visit_Arel_Nodes_Grouping :unary
- alias :visit_Arel_Nodes_Having :unary
- alias :visit_Arel_Nodes_Lateral :unary
- alias :visit_Arel_Nodes_Limit :unary
- alias :visit_Arel_Nodes_Not :unary
- alias :visit_Arel_Nodes_Offset :unary
- alias :visit_Arel_Nodes_On :unary
- alias :visit_Arel_Nodes_Ordering :unary
- alias :visit_Arel_Nodes_Ascending :unary
- 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
- visit o.alias
- visit o.distinct
- end
- alias :visit_Arel_Nodes_Avg :function
- alias :visit_Arel_Nodes_Exists :function
- alias :visit_Arel_Nodes_Max :function
- alias :visit_Arel_Nodes_Min :function
- alias :visit_Arel_Nodes_Sum :function
-
- def visit_Arel_Nodes_NamedFunction(o)
- visit o.name
- visit o.expressions
- visit o.distinct
- visit o.alias
- end
-
- def visit_Arel_Nodes_Count(o)
- visit o.expressions
- visit o.alias
- visit o.distinct
- end
-
- def visit_Arel_Nodes_Case(o)
- visit o.case
- visit o.conditions
- visit o.default
- end
-
- def nary(o)
- o.children.each { |child| visit child }
- end
- alias :visit_Arel_Nodes_And :nary
-
- def binary(o)
- visit o.left
- visit o.right
- end
- alias :visit_Arel_Nodes_As :binary
- alias :visit_Arel_Nodes_Assignment :binary
- alias :visit_Arel_Nodes_Between :binary
- alias :visit_Arel_Nodes_Concat :binary
- alias :visit_Arel_Nodes_DeleteStatement :binary
- alias :visit_Arel_Nodes_DoesNotMatch :binary
- alias :visit_Arel_Nodes_Equality :binary
- alias :visit_Arel_Nodes_FullOuterJoin :binary
- alias :visit_Arel_Nodes_GreaterThan :binary
- alias :visit_Arel_Nodes_GreaterThanOrEqual :binary
- alias :visit_Arel_Nodes_In :binary
- alias :visit_Arel_Nodes_InfixOperation :binary
- alias :visit_Arel_Nodes_JoinSource :binary
- alias :visit_Arel_Nodes_InnerJoin :binary
- alias :visit_Arel_Nodes_LessThan :binary
- alias :visit_Arel_Nodes_LessThanOrEqual :binary
- alias :visit_Arel_Nodes_Matches :binary
- alias :visit_Arel_Nodes_NotEqual :binary
- alias :visit_Arel_Nodes_NotIn :binary
- alias :visit_Arel_Nodes_NotRegexp :binary
- alias :visit_Arel_Nodes_IsNotDistinctFrom :binary
- alias :visit_Arel_Nodes_IsDistinctFrom :binary
- alias :visit_Arel_Nodes_Or :binary
- alias :visit_Arel_Nodes_OuterJoin :binary
- alias :visit_Arel_Nodes_Regexp :binary
- alias :visit_Arel_Nodes_RightOuterJoin :binary
- alias :visit_Arel_Nodes_TableAlias :binary
- alias :visit_Arel_Nodes_When :binary
-
- def visit_Arel_Nodes_StringJoin(o)
- visit o.left
- end
-
- def visit_Arel_Attribute(o)
- visit o.relation
- visit o.name
- end
- alias :visit_Arel_Attributes_Integer :visit_Arel_Attribute
- alias :visit_Arel_Attributes_Float :visit_Arel_Attribute
- alias :visit_Arel_Attributes_String :visit_Arel_Attribute
- alias :visit_Arel_Attributes_Time :visit_Arel_Attribute
- alias :visit_Arel_Attributes_Boolean :visit_Arel_Attribute
- alias :visit_Arel_Attributes_Attribute :visit_Arel_Attribute
- alias :visit_Arel_Attributes_Decimal :visit_Arel_Attribute
-
- def visit_Arel_Table(o)
- visit o.name
- end
-
- def terminal(o)
- end
- alias :visit_ActiveSupport_Multibyte_Chars :terminal
- alias :visit_ActiveSupport_StringInquirer :terminal
- alias :visit_Arel_Nodes_Lock :terminal
- alias :visit_Arel_Nodes_Node :terminal
- alias :visit_Arel_Nodes_SqlLiteral :terminal
- alias :visit_Arel_Nodes_BindParam :terminal
- alias :visit_Arel_Nodes_Window :terminal
- alias :visit_Arel_Nodes_True :terminal
- alias :visit_Arel_Nodes_False :terminal
- alias :visit_BigDecimal :terminal
- alias :visit_Class :terminal
- alias :visit_Date :terminal
- alias :visit_DateTime :terminal
- alias :visit_FalseClass :terminal
- alias :visit_Float :terminal
- alias :visit_Integer :terminal
- alias :visit_NilClass :terminal
- alias :visit_String :terminal
- alias :visit_Symbol :terminal
- alias :visit_Time :terminal
- alias :visit_TrueClass :terminal
-
- def visit_Arel_Nodes_InsertStatement(o)
- visit o.relation
- visit o.columns
- visit o.values
- end
-
- def visit_Arel_Nodes_SelectCore(o)
- visit o.projections
- visit o.source
- visit o.wheres
- visit o.groups
- visit o.windows
- visit o.havings
- end
-
- def visit_Arel_Nodes_SelectStatement(o)
- visit o.cores
- visit o.orders
- visit o.limit
- visit o.lock
- visit o.offset
- end
-
- def visit_Arel_Nodes_UpdateStatement(o)
- visit o.relation
- visit o.values
- visit o.wheres
- visit o.orders
- visit o.limit
- end
-
- def visit_Arel_Nodes_Comment(o)
- visit o.values
- end
-
- def visit_Array(o)
- o.each { |i| visit i }
- end
- alias :visit_Set :visit_Array
-
- def visit_Hash(o)
- o.each { |k, v| visit(k); visit(v) }
- end
-
- DISPATCH = dispatch_cache
-
- def get_dispatch_cache
- DISPATCH
- end
- end
- end
-end