Class: CommandMapper::Types::Num

Inherits:
Type
  • Object
show all
Defined in:
lib/command_mapper/types/num.rb

Overview

Represents a numeric value.

Direct Known Subclasses

Hex

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(range: nil) ⇒ Num

Initializes the numeric value.



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# File 'lib/command_mapper/types/num.rb', line 23

def initialize(range: nil)
  @range = range
end

Instance Attribute Details

#range ⇒ Range? (readonly)

The optional range of acceptable numbers.



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# File 'lib/command_mapper/types/num.rb', line 15

def range
  @range
end

Instance Method Details

#format(value) ⇒ String

Formats a numeric value.



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# File 'lib/command_mapper/types/num.rb', line 73

def format(value)
  case value
  when Integer, String then value.to_s
  else                      value.to_i.to_s
  end
end

#validate(value) ⇒ true, (false, String)

Validates a value.



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# File 'lib/command_mapper/types/num.rb', line 39

def validate(value)
  case value
  when Integer
    # no-op
  when String
    unless value =~ /\A\d+\z/
      return [false, "contains non-numeric characters (#{value.inspect})"]
    end
  else
    unless value.respond_to?(:to_i)
      return [false, "cannot be converted into an Integer (#{value.inspect})"]
    end
  end

  if @range
    unless @range.include?(value.to_i)
      return [false, "(#{value.inspect}) not within the range of acceptable values (#{range.inspect})"]
    end
  end

  return true
end