neovim/test/functional/provider/ruby_spec.lua
Justin M. Keyes 189c5abeba provider/RPC: apply_autocmds_group(): fix double-free
During provider dispatch, eval_call_provider() saves global
state--including pointers, such as `autocmd_fname`--into
`provider_caller_scope` which is later restored by f_rpcrequest().

But `autocmd_fname` is special-cased in eval_vars(), for performance
(see Vim patch 7.2.021; this is also the singular purpose of the
`autocmd_fname_full` global. Yay!)

If eval_vars() frees `autocmd_fname` then its provider-RPC-scoped alias
becomes a problem.

Solution: Don't free autocmd_fname in eval_vars(), just copy into it.

closes #5245
closes #5617

Reference
------------------------------------------------------------------------

Vim patch 7.2.021
f6dad43c98
Problem:    When executing autocommands getting the full file name may be
            slow. (David Kotchan)
Solution:   Postpone calling FullName_save() until autocmd_fname is used.

vim_dev discussion (2008): "Problem with CursorMoved AutoCommand when
Editing Files on a Remote WIndows Share"
https://groups.google.com/d/msg/vim_dev/kj95weZa_eE/GTgj4aq5sIgJ
2018-03-24 11:01:24 +01:00

103 lines
2.4 KiB
Lua

local helpers = require('test.functional.helpers')(after_each)
local clear = helpers.clear
local command = helpers.command
local curbufmeths = helpers.curbufmeths
local eq = helpers.eq
local eval = helpers.eval
local expect = helpers.expect
local feed = helpers.feed
local feed_command = helpers.feed_command
local funcs = helpers.funcs
local insert = helpers.insert
local meths = helpers.meths
local missing_provider = helpers.missing_provider
local write_file = helpers.write_file
do
clear()
if missing_provider('ruby') then
pending("Missing neovim RubyGem.", function() end)
return
end
end
before_each(function()
clear()
end)
describe('ruby feature test', function()
it('works', function()
eq(1, funcs.has('ruby'))
end)
end)
describe(':ruby command', function()
it('evaluates ruby', function()
command('ruby VIM.command("let g:set_by_ruby = [100, 0]")')
eq({100, 0}, meths.get_var('set_by_ruby'))
end)
it('supports nesting', function()
command([[ruby VIM.command('ruby VIM.command("let set_by_nested_ruby = 555")')]])
eq(555, meths.get_var('set_by_nested_ruby'))
end)
end)
describe(':rubyfile command', function()
it('evaluates a ruby file', function()
local fname = 'rubyfile.rb'
write_file(fname, 'VIM.command("let set_by_rubyfile = 123")')
command('rubyfile rubyfile.rb')
eq(123, meths.get_var('set_by_rubyfile'))
os.remove(fname)
end)
end)
describe(':rubydo command', function()
it('exposes the $_ variable for modifying lines', function()
insert('abc\ndef\nghi\njkl')
expect([[
abc
def
ghi
jkl]])
feed('ggjvj:rubydo $_.upcase!<CR>')
expect([[
abc
DEF
GHI
jkl]])
end)
it('operates on all lines when not given a range', function()
insert('abc\ndef\nghi\njkl')
expect([[
abc
def
ghi
jkl]])
feed(':rubydo $_.upcase!<CR>')
expect([[
ABC
DEF
GHI
JKL]])
end)
it('does not modify the buffer if no changes are made', function()
command('normal :rubydo 42')
eq(false, curbufmeths.get_option('modified'))
end)
end)
describe('ruby provider', function()
it('RPC call to expand("<afile>") during BufDelete #5245 #5617', function()
command([=[autocmd BufDelete * ruby VIM::evaluate('expand("<afile>")')]=])
feed_command('help help')
eq(2, eval('1+1')) -- Still alive?
end)
end)