Foreign.Lua.Types.Error

Lua exceptions and exception handling.

Documentation

data LuaException

Exceptions raised by Lua-related operations.

Constructors

LuaException String

Instances

Eq LuaException

Methods

(==) :: LuaException -> LuaException -> Bool

(/=) :: LuaException -> LuaException -> Bool

Show LuaException

Methods

showsPrec :: Int -> LuaException -> ShowS

show :: LuaException -> String

showList :: [LuaException] -> ShowS

Exception LuaException

Methods

toException :: LuaException -> SomeException

fromException :: SomeException -> Maybe LuaException

displayException :: LuaException -> String

catchLuaError :: Lua a -> (LuaException -> Lua a) -> Lua a

Catch a LuaException.

throwLuaError :: String -> Lua a

Raise a LuaException containing the given error message.

modifyLuaError :: Lua a -> (String -> String) -> Lua a

Catch LuaException, alter the error message and rethrow.

tryLua :: Lua a -> Lua (Either LuaException a)

Return either the result of a Lua computation or, if an exception was thrown, the error.

Orphan instances

Alternative Lua

Methods

empty :: Lua a

(<|>) :: Lua a -> Lua a -> Lua a

some :: Lua a -> Lua [a]

many :: Lua a -> Lua [a]