Module: Atatus::Util::PrecisionValidator Private

Defined in:
lib/atatus/util/precision_validator.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.

Rounds half away from zero. If ‘minimum` is provided, and the value rounds to 0 (but was not zero to begin with), use the minimum instead.

Class Method Summary collapse

Class Method Details

.validate(value, precision: 0, minimum: nil) ⇒ 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/atatus/util/precision_validator.rb', line 29

def validate(value, precision: 0, minimum: nil)
  float = Float(value)
  return nil unless (0.0..1.0).cover?(float)
  return float if float == 0

  multiplier = Float(10**precision)
  rounded = (float * multiplier + 0.5).floor / multiplier
  if rounded == 0 && minimum
    minimum
  else
    rounded
  end
rescue ArgumentError
  nil
end