Safe Haskell	Trustworthy
Language	Haskell2010

Panic

Synopsis

data Panic a = Panic {
- panicComponent :: a
- panicLoc :: String
- panicMsg :: [String]
- panicStack :: CallStack
}
class Typeable a => PanicComponent a where
- panicComponentName :: a -> String
- panicComponentIssues :: a -> String
- panicComponentRevision :: a -> (String, String)
useGitRevision :: Q Exp
type HasCallStack = ?callStack :: CallStack
panic :: (PanicComponent a, HasCallStack) => a -> String -> [String] -> b

Documentation

data Panic a Source #

The exception thrown when panicing.

Constructors

Panic
Fields panicComponent :: a panicLoc :: String panicMsg :: [String] panicStack :: CallStack

Instances

Instances details

PanicComponent a => Show (Panic a) Source #
Instance details Defined in Panic Methods showsPrec :: Int -> Panic a -> ShowS show :: Panic a -> String showList :: [Panic a] -> ShowS
PanicComponent a => Exception (Panic a) Source #
Instance details Defined in Panic Methods toException :: Panic a -> SomeException fromException :: SomeException -> Maybe (Panic a) displayException :: Panic a -> String

class Typeable a => PanicComponent a where Source #

Description of a component.

Methods

panicComponentName :: a -> String Source #

Name of the panicing component.

panicComponentIssues :: a -> String Source #

Issue tracker for the panicking component.

panicComponentRevision :: a -> (String, String) Source #

Information about the component's revision. (commit hash, branch info)

useGitRevision :: Q Exp Source #

An expression of type a -> (String,String). Uses template Haskell to query Git for the current state of the repo. Note that the state reported depends on when the module containing the splice was compiled.

type HasCallStack = ?callStack :: CallStack #

panic Source #

Arguments

:: (PanicComponent a, HasCallStack)
=> a	Component identification
-> String	Location of problem
-> [String]	Problem description (lines)
-> b

Throw an exception for the given component.