Safe Haskell	Safe-Inferred

Util.CallStack

Description

Utilities for GHC's implicit call stacks feature.

Synopsis

Documentation

Add this to the context of a function to give stack-aware functions access to its caller.

TODO use Stack.HasCallStack instead? Or not, I already have Derive.Stack and GHC.Stack.HasCallStack is pretty verbose.

Simplified stack with just the immediate caller.

Constructors

Caller !FilePath !Int
NoCaller

Instances details

Read Caller Source #
Instance details Defined in Util.CallStack Methods readsPrec :: Int -> ReadS Caller # readList :: ReadS [Caller] # readPrec :: ReadPrec Caller # readListPrec :: ReadPrec [Caller] #
Show Caller Source #
Instance details Defined in Util.CallStack Methods showsPrec :: Int -> Caller -> ShowS # show :: Caller -> String # showList :: [Caller] -> ShowS #
Eq Caller Source #
Instance details Defined in Util.CallStack Methods (==) :: Caller -> Caller -> Bool # (/=) :: Caller -> Caller -> Bool #
Serialize Caller Source #
Instance details Defined in Util.Serialize Methods put :: Putter Caller Source # get :: Get Caller Source #
FromJSON Caller Source #
Instance details Defined in Util.CallStack Methods parseJSON :: Value -> Parser Caller # parseJSONList :: Value -> Parser [Caller] #
ToJSON Caller Source #
Instance details Defined in Util.CallStack Methods toJSON :: Caller -> Value # toEncoding :: Caller -> Encoding # toJSONList :: [Caller] -> Value # toEncodingList :: [Caller] -> Encoding #

Like error, use when forced.

Throw an error in IO, with a stack.

This is like Stack.prettyCallStack, except more compact.

Get only the top of the stack. More compact than getStack.