Class: ROM::LDAP::Parsers::AbstractSyntax Private

Inherits:
Object
  • Object
show all
Extended by:
Initializer
Defined in:
lib/rom/ldap/parsers/abstract_syntax.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Parses and AST into and Expression/RFC filter

Instance Method Summary collapse

Instance Method Details

#call ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/rom/ldap/parsers/abstract_syntax.rb', line 20

def call
  case ast.size

  # Join or negate expression
  when 2
    constructor, part = ast

    expressions =
      if constructor.eql?(:con_not)
        [express(part)]
      else
        part.map(&method(:express))
      end

    Expression.new(op: constructor, exps: expressions)

  # Create expression
  when 3
    operator, attribute, value = ast

    Expression.new(
      op: operator,
      field: decode_attribute(attribute),
      value: decode_value(value)
    )
  end
end