Commit Graph

3 Commits

Author SHA1 Message Date
Sam McCall dc8f3cf8b0 [clangd] Refactor JSON-over-stdin/stdout code into Transport abstraction. (re-land r344620)
Summary:
This paves the way for alternative transports (mac XPC, maybe messagepack?),
and also generally improves layering: testing ClangdLSPServer becomes less of
a pipe dream, we split up the JSONOutput monolith, etc.

This isn't a final state, much of what remains in JSONRPCDispatcher can go away,
handlers can call reply() on the transport directly, JSONOutput can be renamed
to StreamLogger and removed, etc. But this patch is sprawling already.

The main observable change (see tests) is that hitting EOF on input is now an
error: the client should send the 'exit' notification.
This is defensible: the protocol doesn't spell this case out. Reproducing the
current behavior for all combinations of shutdown/exit/EOF clutters interfaces.
We can iterate on this if desired.

Reviewers: jkorous, ioeric, hokein

Subscribers: mgorny, ilya-biryukov, MaskRay, arphaman, kadircet, cfe-commits

Differential Revision: https://reviews.llvm.org/D53286

llvm-svn: 344672
2018-10-17 07:32:05 +00:00
Krasimir Georgiev ae4e75fd6e Revert "[clangd] Refactor JSON-over-stdin/stdout code into Transport abstraction."
This reverts commit r344620.
Breaks upstream bots.

llvm-svn: 344637
2018-10-16 18:44:41 +00:00
Sam McCall 818ec5e965 [clangd] Refactor JSON-over-stdin/stdout code into Transport abstraction.
Summary:
This paves the way for alternative transports (mac XPC, maybe messagepack?),
and also generally improves layering: testing ClangdLSPServer becomes less of
a pipe dream, we split up the JSONOutput monolith, etc.

This isn't a final state, much of what remains in JSONRPCDispatcher can go away,
handlers can call reply() on the transport directly, JSONOutput can be renamed
to StreamLogger and removed, etc. But this patch is sprawling already.

The main observable change (see tests) is that hitting EOF on input is now an
error: the client should send the 'exit' notification.
This is defensible: the protocol doesn't spell this case out. Reproducing the
current behavior for all combinations of shutdown/exit/EOF clutters interfaces.
We can iterate on this if desired.

Reviewers: jkorous, ioeric, hokein

Subscribers: mgorny, ilya-biryukov, MaskRay, arphaman, kadircet, cfe-commits

Differential Revision: https://reviews.llvm.org/D53286

llvm-svn: 344620
2018-10-16 16:48:06 +00:00