Literals.hs

-----------------------------------------------------------------------------
--
-- Module      :  Language.PureScript.CoreFn.Literals
-- Copyright   :  (c) 2013-14 Phil Freeman, (c) 2014 Gary Burgess, and other contributors
-- License     :  MIT
--
-- Maintainer  :  Phil Freeman <paf31@cantab.net>, Gary Burgess <gary.burgess@gmail.com>
-- Stability   :  experimental
-- Portability :
--
-- | The core functional representation for literal values.
--
-----------------------------------------------------------------------------

{-# LANGUAGE DeriveDataTypeable #-}
{-# LANGUAGE DeriveFunctor #-}

module Language.PureScript.CoreFn.Literals where

import qualified Data.Data as D

-- |
-- Data type for literal values. Parameterised so it can be used for Exprs and
-- Binders.
--
data Literal a
  -- |
  -- A numeric literal
  --
  = NumericLiteral (Either Integer Double)
  -- |
  -- A string literal
  --
  | StringLiteral String
  -- |
  -- A character literal
  --
  | CharLiteral Char
  -- |
  -- A boolean literal
  --
  | BooleanLiteral Bool
  -- |
  -- An array literal
  --
  | ArrayLiteral [a]
  -- |
  -- An object literal
  --
  | ObjectLiteral [(String, a)] deriving (Show, Read, D.Data, D.Typeable, Functor)