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fix(event-loop): process input before events (#27358)

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Problem:
When nvim_input is followed immediately by non-fast events on RPC, both
events and input are available after the polling done by the os_inchar()
in state_enter(), but state_enter() then chooses to process events even
if input is available, which is inconsistent with state_handle_k_event()
that stops processing events once input is available.

Solution:
Also check for available input after the os_inchar() in state_enter().
This commit is contained in:
zeertzjq 2024-02-07 12:11:22 +08:00 committed by GitHub
parent c0b99bb1de
commit 6725565258
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2 changed files with 9 additions and 1 deletions
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2
src/nvim/state.c
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@ -79,7 +79,7 @@ getkey:
// mapping engine.
os_inchar(NULL, 0, -1, typebuf.tb_change_cnt, main_loop.events);
// If an event was put into the queue, we send K_EVENT directly.
if (!multiqueue_empty(main_loop.events)) {
if (!input_available() && !multiqueue_empty(main_loop.events)) {
key = K_EVENT;
} else {
goto getkey;

8
test/functional/api/vim_spec.lua
View File

@ -95,6 +95,14 @@ describe('API', function()
assert_alive()
end)
it('input is processed first when followed immediately by non-fast events', function()
api.nvim_set_current_line('ab')
async_meths.nvim_input('x')
async_meths.nvim_exec_lua('_G.res1 = vim.api.nvim_get_current_line()', {})
async_meths.nvim_exec_lua('_G.res2 = vim.api.nvim_get_current_line()', {})
eq({ 'b', 'b' }, exec_lua('return { _G.res1, _G.res2 }'))
end)
it('does not set CA_COMMAND_BUSY #7254', function()
command('split')
command('autocmd WinEnter * startinsert')