Data.Text.Internal.Fusion.Size

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.

Documentation

data Size Source #

A size in UTF-8 code units (which is bytes).

Instances
Instances details
Num Size Source # 
Instance details

Defined in Data.Text.Internal.Fusion.Size

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 Source # 
Instance details

Defined in Data.Text.Internal.Fusion.Size

Methods

showsPrec :: Int -> Size -> ShowS Source #

show :: Size -> String Source #

showList :: [Size] -> ShowS Source #

Eq Size Source # 
Instance details

Defined in Data.Text.Internal.Fusion.Size

Methods

(==) :: Size -> Size -> Bool Source #

(/=) :: Size -> Size -> Bool Source #

Sizes

exactSize :: Int -> Size Source #

maxSize :: Int -> Size Source #

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

unknownSize :: Size Source #

unionSize :: Size -> Size -> Size Source #

charSize :: Char -> Size Source #

The Size of the given code point.

codePointsSize :: Int -> Size Source #

The Size of n code points.

Querying sizes

exactly :: Size -> Maybe Int 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 minimum size from a size hint, if possible.

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

Determine the ordering relationship between two Sizes, or Nothing in the indeterminate case.

isEmpty :: Size -> Bool Source #