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fix(messages)!: vim.ui_attach message callbacks are unsafe

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Problem:  Lua callbacks for "msg_show" events with vim.ui_attach() are
          executed when it is not safe.
Solution: Disallow non-fast API calls for "msg_show" event callbacks.
          Automatically detach callback after excessive errors.
          Make sure fast APIs do not modify Nvim state.
This commit is contained in:
Luuk van Baal
2024-06-20 14:48:06 +02:00
parent 7d771c3eee
commit de48fbbd5f
17 changed files with 215 additions and 141 deletions
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2
src/nvim/errors.h
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@@ -151,7 +151,7 @@ EXTERN const char e_auabort[] INIT(= N_("E855: Autocommands caused command to ab
EXTERN const char e_api_error[] INIT(= N_("E5555: API call: %s"));
EXTERN const char e_luv_api_disabled[] INIT(= N_("E5560: %s must not be called in a lua loop callback"));
EXTERN const char e_fast_api_disabled[] INIT(= N_("E5560: %s must not be called in a fast event context"));
EXTERN const char e_floatonly[] INIT(= N_("E5601: Cannot close window, only floating window would remain"));
EXTERN const char e_floatexchange[] INIT(= N_("E5602: Cannot exchange or rotate float"));