Edsko de Vries

Add combinator for optional properties

1

(Note that the implementation does not rely on `defaultValue` and hence does not rely on any `Eq` instances.)

Error messages non-descriptive

2

Usually an error message is just "empty grammar". This might not be such an easy problem to tackle though.

If I have ``` haskell data RequestSessionUpdate = RequestUpdateSourceFileFromFile RequestFilePath | RequestUpdateGhcOpts RequestGhcOption ``` with corresponding grammar ``` haskell instance Json RequestSessionUpdate where grammar = label "SessionUpdate" $ object $...

If you have a definition such as ``` haskell instance Json RequestSessionUpdate where grammar = label "SessionUpdate" $ object $ mconcat [ property "sessionUpdate" "updateSourceFileFromFile" . fromPrism requestUpdateSourceFileFromFile . prop...

Question: how to differentiate between normal and abnormal termination?

2

The main primitive for exception handling in conduit (I think) is ``` haskell bracketP :: MonadResource m => IO a -> (a -> IO ()) -> (a -> ConduitM i...

Syntax for updating multiple fields?

5

This is not a bug report, but a point for discussion. Version 0.2.2 changed the behaviour of `record-dot-preprocessor`, so that `r{ x = .. }` is no longer recognized as...

Use "unsafe" where appropriate

3

Many of the foreign exports are not declared "unsafe", which means that are less efficient than they could be. They should be marked as "unsafe" where appropriate (which I think...

`getRequestBodyChunk` should indicate if a chunk is the last one

3

For streaming calls, clients have two ways of indicating end-of-input to the sever: ``` NON-EMPTY DATA FRAME 1 NON-EMPTY DATA FRAME 2 NON-EMPTY DATA FRAME 3 ``` and ``` NON-EMPTY...

`allocSimpleConfig` should take a timeout parameter, and timeouts should be optional

1

At the moment, `allocSimpleConfig` hardcodes the `TimeManager` timeout to 30 seconds: https://github.com/kazu-yamamoto/http2/blob/b8f2268f5079667c1d6f47dfb254056b5b277823/Network/HTTP2/H2/Config.hs#L20 This should instead be a parameter, and that parameter should not be of type `Int`, but rather of...