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Full debugger support #1906

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jneira opened this issue Jun 9, 2021 · 1 comment

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type: enhancement

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jneira commented Jun 9, 2021

That was a feature request in hie that we did not translate here but i think it worths it: a ghc debugger with a nice gui could be a killer feature. In the hie issue there is a interesanting discussion on how could be implemented
repl support could be related as mentione in REPL Support #477

jneira added the type: enhancement label

jneira added the type: possible new plugin label

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jneira commented Jul 12, 2021

From the hie issue:

The Phoityne debugger uses this at the back https://hackage.haskell.org/package/haskell-dap which implements the vscode debug protocal, as I understand it.

Using a standard protocol makes sense to me, but it is not as widely implemented as LSP. See https://code.visualstudio.com/docs/extensionAPI/api-debugging

The standard is now DAP, I would say, supported in both emacs and vscode.

And as I said earlier, phoityne already supports it, maybe we should consider an integration with it.

Fundamentally this is about having a GHCI session at the same time, which has been considered quite a bit. See e.g https://gitlab.haskell.org/ghc/ghc/issues/15461

The ghci-dap has a nice component diagram: https://github.com/phoityne/ghci-dap#ghci-dap

michaelpj removed the old_type: possible new plugin label

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