Stability	experimental
Portability	portable
Safe Haskell	None
Language	Haskell2010

GHC.Eventlog.Live.Data.Attribute

Description

Synopsis

type Attr = (AttrKey, AttrValue)
type AttrKey = Text
data AttrValue
- = AttrInt !Int
- | AttrInt8 !Int8
- | AttrInt16 !Int16
- | AttrInt32 !Int32
- | AttrInt64 !Int64
- | AttrWord !Word
- | AttrWord8 !Word8
- | AttrWord16 !Word16
- | AttrWord32 !Word32
- | AttrWord64 !Word64
- | AttrDouble !Double
- | AttrText !Text
- | AttrNull
class IsAttrValue v where
- toAttrValue :: v -> AttrValue
(~=) :: IsAttrValue v => AttrKey -> v -> Attr

Documentation

type Attr = (AttrKey, AttrValue) Source #

An attribute is a key-value pair where the key is any string and the value is some numeric type, string, or null. Attributes should be constructed using the (~=) operator, which automatically converts Haskell types to AttrValue.

type AttrKey = Text Source #

The type of attribute keys.

data AttrValue Source #

The type of attribute values.

Constructors

AttrInt !Int
AttrInt8 !Int8
AttrInt16 !Int16
AttrInt32 !Int32
AttrInt64 !Int64
AttrWord !Word
AttrWord8 !Word8
AttrWord16 !Word16
AttrWord32 !Word32
AttrWord64 !Word64
AttrDouble !Double
AttrText !Text
AttrNull

Instances

Instances details

Show AttrValue Source #
Instance details Defined in GHC.Eventlog.Live.Data.Attribute Methods showsPrec :: Int -> AttrValue -> ShowS # show :: AttrValue -> String # showList :: [AttrValue] -> ShowS #
IsAttrValue AttrValue Source #
Instance details Defined in GHC.Eventlog.Live.Data.Attribute Methods toAttrValue :: AttrValue -> AttrValue Source #

class IsAttrValue v where Source #

Utility class to help construct values of the AttrValue type.

Methods

toAttrValue :: v -> AttrValue Source #

Instances

Instances details

IsAttrValue Int16 Source #
Instance details Defined in GHC.Eventlog.Live.Data.Attribute Methods toAttrValue :: Int16 -> AttrValue Source #
IsAttrValue Int32 Source #
Instance details Defined in GHC.Eventlog.Live.Data.Attribute Methods toAttrValue :: Int32 -> AttrValue Source #
IsAttrValue Int64 Source #
Instance details Defined in GHC.Eventlog.Live.Data.Attribute Methods toAttrValue :: Int64 -> AttrValue Source #
IsAttrValue Int8 Source #
Instance details Defined in GHC.Eventlog.Live.Data.Attribute Methods toAttrValue :: Int8 -> AttrValue Source #
IsAttrValue Word16 Source #
Instance details Defined in GHC.Eventlog.Live.Data.Attribute Methods toAttrValue :: Word16 -> AttrValue Source #
IsAttrValue Word32 Source #
Instance details Defined in GHC.Eventlog.Live.Data.Attribute Methods toAttrValue :: Word32 -> AttrValue Source #
IsAttrValue Word64 Source #
Instance details Defined in GHC.Eventlog.Live.Data.Attribute Methods toAttrValue :: Word64 -> AttrValue Source #
IsAttrValue Word8 Source #
Instance details Defined in GHC.Eventlog.Live.Data.Attribute Methods toAttrValue :: Word8 -> AttrValue Source #
IsAttrValue AttrValue Source #
Instance details Defined in GHC.Eventlog.Live.Data.Attribute Methods toAttrValue :: AttrValue -> AttrValue Source #
IsAttrValue CapabilityUser Source #
Instance details Defined in GHC.Eventlog.Live.Machine Methods toAttrValue :: CapabilityUser -> AttrValue Source #
IsAttrValue Text Source #
Instance details Defined in GHC.Eventlog.Live.Data.Attribute Methods toAttrValue :: Text -> AttrValue Source #
IsAttrValue String Source #
Instance details Defined in GHC.Eventlog.Live.Data.Attribute Methods toAttrValue :: String -> AttrValue Source #
IsAttrValue Double Source #
Instance details Defined in GHC.Eventlog.Live.Data.Attribute Methods toAttrValue :: Double -> AttrValue Source #
IsAttrValue Int Source #
Instance details Defined in GHC.Eventlog.Live.Data.Attribute Methods toAttrValue :: Int -> AttrValue Source #
IsAttrValue Word Source #
Instance details Defined in GHC.Eventlog.Live.Data.Attribute Methods toAttrValue :: Word -> AttrValue Source #
IsAttrValue v => IsAttrValue (Maybe v) Source #
Instance details Defined in GHC.Eventlog.Live.Data.Attribute Methods toAttrValue :: Maybe v -> AttrValue Source #

(~=) :: IsAttrValue v => AttrKey -> v -> Attr Source #

Construct an Attr as a pair of an AttrKey and an AttrValue, constructed via the IsAttrValue class.