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local helpers = require('test.unit.helpers')(after_each)
local eval_helpers = require('test.unit.eval.helpers')
local itp = helpers.gen_itp(it)
local eq = helpers.eq
local neq = helpers.neq
local ffi = helpers.ffi
local NULL = helpers.NULL
local cimport = helpers.cimport
local alloc_log_new = helpers.alloc_log_new
local a = eval_helpers.alloc_logging_helpers
local list = eval_helpers.list
local lst2tbl = eval_helpers.lst2tbl
local type_key = eval_helpers.type_key
local dict_type = eval_helpers.dict_type
local lua2typvalt = eval_helpers.lua2typvalt
local lib = cimport('./src/nvim/eval/typval.h', './src/nvim/memory.h')
local function li_alloc(nogc)
local gcfunc = lib.tv_list_item_free
if nogc then gcfunc = nil end
local li = ffi.gc(lib.tv_list_item_alloc(), gcfunc)
li.li_next = nil
li.li_prev = nil
li.li_tv = {v_type=lib.VAR_UNKNOWN, v_lock=lib.VAR_UNLOCKED}
return li
end
local function list_index(l, idx)
return tv_list_find(l, idx)
end
local function list_items(l)
local lis = {}
local li = l.lv_first
for i = 1, l.lv_len do
lis[i] = li
li = li.li_next
end
return lis
end
local function list_watch(li)
return ffi.new('listwatch_T', {lw_item=li})
end
local alloc_log
local restore_allocators
local to_cstr_nofree = function(v) return lib.xstrdup(v) end
local alloc_log = alloc_log_new()
before_each(function()
alloc_log:before_each()
end)
after_each(function()
alloc_log:after_each()
end)
describe('typval.c', function()
describe('list', function()
describe('item', function()
describe('alloc()/free()', function()
itp('works', function()
local li = li_alloc(true)
neq(nil, li)
lib.tv_list_item_free(li)
alloc_log:check({
a.li(li),
a.freed(li),
})
end)
itp('also frees the value', function()
local li
local s
local l
local tv
li = li_alloc(true)
li.li_tv.v_type = lib.VAR_NUMBER
li.li_tv.vval.v_number = 10
lib.tv_list_item_free(li)
alloc_log:check({
a.li(li),
a.freed(li),
})
li = li_alloc(true)
li.li_tv.v_type = lib.VAR_FLOAT
li.li_tv.vval.v_float = 10.5
lib.tv_list_item_free(li)
alloc_log:check({
a.li(li),
a.freed(li),
})
li = li_alloc(true)
li.li_tv.v_type = lib.VAR_STRING
li.li_tv.vval.v_string = nil
lib.tv_list_item_free(li)
alloc_log:check({
a.li(li),
a.freed(alloc_log.null),
a.freed(li),
})
li = li_alloc(true)
li.li_tv.v_type = lib.VAR_STRING
s = to_cstr_nofree('test')
li.li_tv.vval.v_string = s
lib.tv_list_item_free(li)
alloc_log:check({
a.li(li),
a.str(s, #('test')),
a.freed(s),
a.freed(li),
})
li = li_alloc(true)
li.li_tv.v_type = lib.VAR_LIST
l = list()
l.lv_refcount = 2
li.li_tv.vval.v_list = l
lib.tv_list_item_free(li)
alloc_log:check({
a.li(li),
a.list(l),
a.freed(li),
})
eq(1, l.lv_refcount)
li = li_alloc(true)
tv = lua2typvalt({[type_key]=dict_type})
tv.vval.v_dict.dv_refcount = 2
li.li_tv = tv
lib.tv_list_item_free(li)
alloc_log:check({
a.li(li),
a.dict(tv.vval.v_dict),
a.freed(li),
})
eq(1, tv.vval.v_dict.dv_refcount)
end)
end)
describe('remove()', function()
itp('works', function()
local l = list(1, 2, 3, 4, 5, 6, 7)
neq(nil, l)
local lis = list_items(l)
alloc_log:check({
a.list(l),
a.li(lis[1]),
a.li(lis[2]),
a.li(lis[3]),
a.li(lis[4]),
a.li(lis[5]),
a.li(lis[6]),
a.li(lis[7]),
})
lib.tv_list_item_remove(l, lis[1])
alloc_log:check({
a.freed(table.remove(lis, 1)),
})
eq(lis, list_items(l))
lib.tv_list_item_remove(l, lis[6])
alloc_log:check({
a.freed(table.remove(lis)),
})
eq(lis, list_items(l))
lib.tv_list_item_remove(l, lis[3])
alloc_log:check({
a.freed(table.remove(lis, 3)),
})
eq(lis, list_items(l))
end)
itp('works and adjusts watchers correctly', function()
local l = ffi.gc(list(1, 2, 3, 4, 5, 6, 7), nil)
neq(nil, l)
local lis = list_items(l)
-- Three watchers: pointing to first, middle and last elements.
local lws = {list_watch(lis[1]), list_watch(lis[4]), list_watch(lis[7])}
lib.tv_list_watch_add(l, lws[1])
lib.tv_list_watch_add(l, lws[2])
lib.tv_list_watch_add(l, lws[3])
lib.tv_list_item_remove(l, lis[4])
eq({lis[1], lis[5], lis[7]}, {lws[1].lw_item, lws[2].lw_item, lws[3].lw_item})
lib.tv_list_item_remove(l, lis[2])
eq({lis[1], lis[5], lis[7]}, {lws[1].lw_item, lws[2].lw_item, lws[3].lw_item})
lib.tv_list_item_remove(l, lis[7])
eq({lis[1], lis[5], nil}, {lws[1].lw_item, lws[2].lw_item, lws[3].lw_item == nil and nil})
lib.tv_list_item_remove(l, lis[1])
eq({lis[3], lis[5], nil}, {lws[1].lw_item, lws[2].lw_item, lws[3].lw_item == nil and nil})
lib.tv_list_free(l)
end)
end)
end)
end)
end)
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