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lua: add vim.in_fast_event() to check if we are in a luv callback

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This commit is contained in:
Björn Linse
2019-08-04 21:56:29 +02:00
parent e6d77993d1
commit 88938634e7
3 changed files with 24 additions and 2 deletions
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6
test/functional/lua/loop_spec.lua
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@@ -75,6 +75,7 @@ describe('vim.loop', function()
exec_lua([[
local timer = vim.loop.new_timer()
timer:start(20, 0, function ()
_G.is_fast = vim.in_fast_event()
timer:close()
vim.api.nvim_set_var("valid", true)
vim.api.nvim_command("echomsg 'howdy'")
@@ -89,18 +90,20 @@ describe('vim.loop', function()
{1:~ }|
{2: }|
{3:Error executing luv callback:} |
{3:[string "<nvim>"]:4: E5560: nvim_set_var must not }|
{3:[string "<nvim>"]:5: E5560: nvim_set_var must not }|
{3:be called in a lua loop callback} |
{4:Press ENTER or type command to continue}^ |
]])
feed('<cr>')
eq(false, eval("get(g:, 'valid', v:false)"))
eq(true, exec_lua("return _G.is_fast"))
-- callbacks can be scheduled to be executed in the main event loop
-- where the entire API is available
exec_lua([[
local timer = vim.loop.new_timer()
timer:start(20, 0, vim.schedule_wrap(function ()
_G.is_fast = vim.in_fast_event()
timer:close()
vim.api.nvim_set_var("valid", true)
vim.api.nvim_command("echomsg 'howdy'")
@@ -120,6 +123,7 @@ describe('vim.loop', function()
howdy |
]])
eq(true, eval("get(g:, 'valid', v:false)"))
eq(false, exec_lua("return _G.is_fast"))
-- fast (not deferred) API functions are allowed to be called directly
exec_lua([[