Copyright	(c) Roman Leshchinskiy 2008 (c) Bryan O'Sullivan 2009
License	BSD-style
Maintainer	bos@serpentine.com
Stability	experimental
Portability	portable
Safe Haskell	None
Language	Haskell98

Data.Text.Internal.Fusion.Size

Description

Warning: this is an internal module, and does not have a stable API or name. Functions in this module may not check or enforce preconditions expected by public modules. Use at your own risk!

Size hints.

Synopsis

data Size
exactly :: Size -> Maybe Int
exactSize :: Int -> Size
maxSize :: Int -> Size
betweenSize :: Int -> Int -> Size
unknownSize :: Size
smaller :: Size -> Size -> Size
larger :: Size -> Size -> Size
upperBound :: Int -> Size -> Int
lowerBound :: Int -> Size -> Int
compareSize :: Size -> Int -> Maybe Ordering
isEmpty :: Size -> Bool

Documentation

data Size Source #

Instances

Eq Size #
Instance details Methods (==) :: Size -> Size -> Bool Source # (/=) :: Size -> Size -> Bool Source #
Num Size #
Instance details Methods (+) :: Size -> Size -> Size Source # (-) :: Size -> Size -> Size Source # (*) :: Size -> Size -> Size Source # negate :: Size -> Size Source # abs :: Size -> Size Source # signum :: Size -> Size Source # fromInteger :: Integer -> Size Source #
Show Size #
Instance details Methods showsPrec :: Int -> Size -> ShowS Source # show :: Size -> String Source # showList :: [Size] -> ShowS Source #

exactly :: Size -> Maybe Int Source #

exactSize :: Int -> Size Source #

maxSize :: Int -> Size Source #

betweenSize :: Int -> Int -> Size Source #

unknownSize :: Size Source #

smaller :: Size -> Size -> Size Source #

Minimum of two size hints.

larger :: Size -> Size -> Size Source #

Maximum of two size hints.

upperBound :: Int -> Size -> Int Source #

Compute the maximum size from a size hint, if possible.

lowerBound :: Int -> Size -> Int Source #

Compute the maximum size from a size hint, if possible.

compareSize :: Size -> Int -> Maybe Ordering Source #

isEmpty :: Size -> Bool Source #