Class: ActiveRecord::Refined::AST::Bitwise

Inherits:
Node
  • Object
show all
Includes:
Arithmetics, BitwiseOperands, Predications
Defined in:
lib/active_record/refined/ast.rb

Overview

SQL's bitwise operators. Each parenthesises itself, which is what keeps Ruby's grouping: PostgreSQL gives & and | the same precedence and reads a | b & c from the left, where Ruby reads the & first.

Constant Summary collapse

NODES = 
{
  :& => Arel::Nodes::BitwiseAnd,
  :| => Arel::Nodes::BitwiseOr,
  :<< => Arel::Nodes::BitwiseShiftLeft,
  :>> => Arel::Nodes::BitwiseShiftRight,
}.freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Arithmetics

#&, #*, #+, #-, #/, #<<, #>>, #^, #|, #~

Methods included from Predications

#!=, #!~, #<, #<=, #==, #=~, #>, #>=, #between?, #bury, #casecmp?, #contains?, #dig, #dig_text, #distinct_from?, #end_with?, #except, #false?, #ilike?, #in?, #include?, #intersect?, #key?, #like?, #member?, #not_between?, #not_distinct_from?, #not_false?, #not_ilike?, #not_in?, #not_like?, #not_null?, #not_true?, #null?, #start_with?, #subset?, #superset?, #true?, #when

Methods inherited from Node

#as, #asc, #desc

Constructor Details

#initialize(left, operator, right) ⇒ Bitwise

Returns a new instance of Bitwise.



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# File 'lib/active_record/refined/ast.rb', line 898

def initialize(left, operator, right)
  @left = left
  @operator = operator
  @right = check_operand(right, operator)
end

Instance Attribute Details

#left ⇒ Object (readonly)

Returns the value of attribute left.



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# File 'lib/active_record/refined/ast.rb', line 896

def left
  @left
end

#operator ⇒ Object (readonly)

Returns the value of attribute operator.



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# File 'lib/active_record/refined/ast.rb', line 896

def operator
  @operator
end

#right ⇒ Object (readonly)

Returns the value of attribute right.



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# File 'lib/active_record/refined/ast.rb', line 896

def right
  @right
end

Instance Method Details

#to_arel(table, model) ⇒ Object 



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# File 'lib/active_record/refined/ast.rb', line 904

def to_arel(table, model)
  check_not_boolean(left, operator, model)
  check_not_boolean(right, operator, model)
  arel_left = to_arel_operand(left, table, model)
  arel_right = to_arel_argument(right, table, model)
  Arel::Nodes::Grouping.new(
    if operator == :^
      xor(arel_left, arel_right, model)
    else
      NODES.fetch(operator).new(arel_left, arel_right)
    end)
end