Module: Mongoid::Matcher::Bits Private

Included in:
BitsAllClear, BitsAllSet, BitsAnyClear, BitsAnySet
Defined in:
lib/mongoid/matcher/bits.rb

Overview

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

Mixin module included in bitwise expression matchers.

API:

  • private

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.operator_name ⇒ String

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.

Returns the name of the expression operator.

Returns:

  • The operator name.

API:

  • private

  • private



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# File 'lib/mongoid/matcher/bits.rb', line 55

module_function def operator_name
  name.sub(/.*::/, '').sub(/\A(.)/) { |l| l.downcase }
end

Instance Method Details

#matches?(exists, value, condition) ⇒ true | false

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.

Returns whether a value satisfies a bitwise expression.

Parameters:

  • Not used.

  • The value to check.

  • The expression predicate as a bitmask or position list.

Returns:

  • Whether the value matches.

API:

  • private



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# File 'lib/mongoid/matcher/bits.rb', line 20

def matches?(exists, value, condition)
  case value
  when BSON::Binary
    value = value.data.split('').map { |n| '%02x' % n.ord }.join.to_i(16)
  end
  case condition
  when Array
    array_matches?(value, condition)
  when BSON::Binary
    int_cond = condition.data.split('').map { |n| '%02x' % n.ord }.join.to_i(16)
    int_matches?(value, int_cond)
  when Integer
    if condition < 0
      raise Errors::InvalidQuery, "Invalid value for $#{operator_name} argument: negative integers are not allowed: #{condition}"
    end
    int_matches?(value, condition)
  when Float
    if (int_cond = condition.to_i).to_f == condition
      if int_cond < 0
        raise Errors::InvalidQuery, "Invalid value for $#{operator_name} argument: negative numbers are not allowed: #{condition}"
      end
      int_matches?(value, int_cond)
    else
      raise Errors::InvalidQuery, "Invalid type for $#{operator_name} argument: not representable as an integer: #{condition}"
    end
  else
    raise Errors::InvalidQuery, "Invalid type for $#{operator_name} argument: #{condition}"
  end
end