Class: Unparser::Preprocessor::Infinity

Inherits:

Unparser::Preprocessor

• Object
• Unparser::Preprocessor
• Unparser::Preprocessor::Infinity

Defined in:

lib/unparser/preprocessor.rb

Overview

Preprocessor transforming numeric nodes with infinity as value to round trippable aequivalent.

Constant Summary

NEG_INFINITY =

- 1)

Constants inherited from Unparser::Preprocessor

EMPTY, REGISTRY

Instance Method Summary

• #result ⇒ Object

  Return preprocessor result.

Methods inherited from Unparser::Preprocessor

run

Methods included from NodeHelpers

#n, #s

Instance Method Details

#result ⇒ Object

Return preprocessor result

Parameters:

• (Parser::AST::Node)

# File 'lib/unparser/preprocessor.rb', line 195

def result
  value = node.children.first
  case value
  when Float::INFINITY
    s(:const, s(:const, nil, :Float), :INFINITY)
  when NEG_INFINITY
    s(:send, s(:const, s(:const, nil, :Float), :INFINITY), :-@)
  else
    node
  end
end