neovim/test/unit/eval/helpers.lua
ZyX e2a578f40d unittests: Do not import libnvim or headers in main process
Slows down unit tests much, but gets rid of as much preserved state as possible.
2017-03-11 23:23:49 +03:00

426 lines
11 KiB
Lua

local helpers = require('test.unit.helpers')(nil)
local cimport = helpers.cimport
local to_cstr = helpers.to_cstr
local ffi = helpers.ffi
local eq = helpers.eq
local eval = cimport('./src/nvim/eval.h', './src/nvim/eval_defs.h',
'./src/nvim/hashtab.h')
local null_string = {[true]='NULL string'}
local null_list = {[true]='NULL list'}
local null_dict = {[true]='NULL dict'}
local type_key = {[true]='type key'}
local list_type = {[true]='list type'}
local dict_type = {[true]='dict type'}
local func_type = {[true]='func type'}
local int_type = {[true]='int type'}
local flt_type = {[true]='flt type'}
local nil_value = {[true]='nil'}
local lua2typvalt
local function li_alloc(nogc)
local gcfunc = eval.listitem_free
if nogc then gcfunc = nil end
local li = ffi.gc(eval.listitem_alloc(), gcfunc)
li.li_next = nil
li.li_prev = nil
li.li_tv = {v_type=eval.VAR_UNKNOWN, v_lock=eval.VAR_UNLOCKED}
return li
end
local function list(...)
local ret = ffi.gc(eval.list_alloc(), eval.list_unref)
eq(0, ret.lv_refcount)
ret.lv_refcount = 1
for i = 1, select('#', ...) do
local val = select(i, ...)
local li_tv = ffi.gc(lua2typvalt(val), nil)
local li = li_alloc(true)
li.li_tv = li_tv
eval.tv_list_append(ret, li)
end
return ret
end
local ptr2key = function(ptr)
return tostring(ptr)
end
local lst2tbl
local dct2tbl
local typvalt2lua
local typvalt2lua_tab = nil
local function typvalt2lua_tab_init()
if typvalt2lua_tab then
return
end
typvalt2lua_tab = {
[tonumber(eval.VAR_SPECIAL)] = function(t)
return ({
[eval.kSpecialVarFalse] = false,
[eval.kSpecialVarNull] = nil_value,
[eval.kSpecialVarTrue] = true,
})[t.vval.v_special]
end,
[tonumber(eval.VAR_NUMBER)] = function(t)
return {[type_key]=int_type, value=tonumber(t.vval.v_number)}
end,
[tonumber(eval.VAR_FLOAT)] = function(t)
return tonumber(t.vval.v_float)
end,
[tonumber(eval.VAR_STRING)] = function(t)
local str = t.vval.v_string
if str == nil then
return null_string
else
return ffi.string(str)
end
end,
[tonumber(eval.VAR_LIST)] = function(t, processed)
return lst2tbl(t.vval.v_list, processed)
end,
[tonumber(eval.VAR_DICT)] = function(t, processed)
return dct2tbl(t.vval.v_dict, processed)
end,
[tonumber(eval.VAR_FUNC)] = function(t, processed)
return {[type_key]=func_type, value=typvalt2lua_tab[eval.VAR_STRING](t, processed or {})}
end,
[tonumber(eval.VAR_PARTIAL)] = function(t, processed)
local p_key = ptr2key(t)
if processed[p_key] then
return processed[p_key]
end
local pt = t.vval.v_partial
local value, auto, dict, argv = nil, nil, nil, nil
if pt ~= nil then
value = ffi.string(pt.pt_name)
auto = pt.pt_auto and true or nil
argv = {}
for i = 1, pt.pt_argc do
argv[i] = typvalt2lua(pt.pt_argv[i - 1], processed)
end
if pt.pt_dict ~= nil then
dict = dct2tbl(pt.pt_dict)
end
end
return {
[type_key]=func_type,
value=value,
auto=auto,
args=argv,
dict=dict,
}
end,
}
end
typvalt2lua = function(t, processed)
typvalt2lua_tab_init()
return ((typvalt2lua_tab[tonumber(t.v_type)] or function(t_inner)
assert(false, 'Converting ' .. tonumber(t_inner.v_type) .. ' was not implemented yet')
end)(t, processed or {}))
end
local function list_iter(l)
local init_s = {
idx=0,
li=l.lv_first,
}
local function f(s, _)
-- (listitem_T *) NULL is equal to nil, but yet it is not false.
if s.li == nil then
return nil
end
local ret_li = s.li
s.li = s.li.li_next
s.idx = s.idx + 1
return s.idx, ret_li
end
return f, init_s, nil
end
local function list_items(l)
local ret = {}
for i, li in list_iter(l) do
ret[i] = li
end
return ret
end
lst2tbl = function(l, processed)
if l == nil then
return null_list
end
processed = processed or {}
local p_key = ptr2key(l)
if processed[p_key] then
return processed[p_key]
end
local ret = {[type_key]=list_type}
processed[p_key] = ret
for i, li in list_iter(l) do
ret[i] = typvalt2lua(li.li_tv, processed)
end
if ret[1] then
ret[type_key] = nil
end
return ret
end
local hi_key_removed = nil
local function dict_iter(d, return_hi)
hi_key_removed = hi_key_removed or eval._hash_key_removed()
local init_s = {
todo=d.dv_hashtab.ht_used,
hi=d.dv_hashtab.ht_array,
}
local function f(s, _)
if s.todo == 0 then return nil end
while s.todo > 0 do
if s.hi.hi_key ~= nil and s.hi.hi_key ~= hi_key_removed then
local key = ffi.string(s.hi.hi_key)
local ret
if return_hi then
ret = s.hi
else
ret = ffi.cast('dictitem_T*',
s.hi.hi_key - ffi.offsetof('dictitem_T', 'di_key'))
end
s.todo = s.todo - 1
s.hi = s.hi + 1
return key, ret
end
s.hi = s.hi + 1
end
end
return f, init_s, nil
end
local function first_di(d)
local f, init_s, v = dict_iter(d)
return select(2, f(init_s, v))
end
local function dict_items(d)
local ret = {[0]=0}
for k, hi in dict_iter(d) do
ret[k] = hi
ret[0] = ret[0] + 1
ret[ret[0]] = hi
end
return ret
end
dct2tbl = function(d, processed)
if d == nil then
return null_dict
end
processed = processed or {}
local p_key = ptr2key(d)
if processed[p_key] then
return processed[p_key]
end
local ret = {}
processed[p_key] = ret
for k, di in dict_iter(d) do
ret[k] = typvalt2lua(di.di_tv, processed)
end
return ret
end
local typvalt = function(typ, vval)
if typ == nil then
typ = eval.VAR_UNKNOWN
elseif type(typ) == 'string' then
typ = eval[typ]
end
return ffi.gc(ffi.new('typval_T', {v_type=typ, vval=vval}), eval.clear_tv)
end
local lua2typvalt_type_tab = {
[int_type] = function(l, _)
return typvalt(eval.VAR_NUMBER, {v_number=l.value})
end,
[flt_type] = function(l, processed)
return lua2typvalt(l.value, processed)
end,
[list_type] = function(l, processed)
if processed[l] then
processed[l].lv_refcount = processed[l].lv_refcount + 1
return typvalt(eval.VAR_LIST, {v_list=processed[l]})
end
local lst = eval.list_alloc()
lst.lv_refcount = 1
processed[l] = lst
local ret = typvalt(eval.VAR_LIST, {v_list=lst})
for i = 1, #l do
local item_tv = ffi.gc(lua2typvalt(l[i], processed), nil)
eval.list_append_tv(lst, item_tv)
eval.clear_tv(item_tv)
end
return ret
end,
[dict_type] = function(l, processed)
if processed[l] then
processed[l].dv_refcount = processed[l].dv_refcount + 1
return typvalt(eval.VAR_DICT, {v_dict=processed[l]})
end
local dct = eval.dict_alloc()
dct.dv_refcount = 1
processed[l] = dct
local ret = typvalt(eval.VAR_DICT, {v_dict=dct})
for k, v in pairs(l) do
if type(k) == 'string' then
local di = eval.dictitem_alloc(to_cstr(k))
local val_tv = ffi.gc(lua2typvalt(v, processed), nil)
eval.copy_tv(val_tv, di.di_tv)
eval.clear_tv(val_tv)
eval.dict_add(dct, di)
end
end
return ret
end,
[func_type] = function(l, processed)
if processed[l] then
processed[l].pt_refcount = processed[l].pt_refcount + 1
return typvalt(eval.VAR_PARTIAL, {v_partial=processed[l]})
end
if l.args or l.dict then
local pt = ffi.gc(ffi.cast('partial_T*', eval.xmalloc(ffi.sizeof('partial_T'))), nil)
processed[l] = pt
local argv = nil
if l.args and #l.args > 0 then
argv = ffi.gc(ffi.cast('typval_T*', eval.xmalloc(ffi.sizeof('typval_T') * #l.args)), nil)
for i, arg in ipairs(l.args) do
local arg_tv = ffi.gc(lua2typvalt(arg, processed), nil)
eval.copy_tv(arg_tv, argv[i - 1])
eval.clear_tv(arg_tv)
end
end
local dict = nil
if l.dict then
local dict_tv = ffi.gc(lua2typvalt(l.dict, processed), nil)
assert(dict_tv.v_type == eval.VAR_DICT)
dict = dict_tv.vval.v_dict
end
pt.pt_refcount = 1
pt.pt_name = eval.xmemdupz(to_cstr(l.value), #l.value)
pt.pt_auto = not not l.auto
pt.pt_argc = l.args and #l.args or 0
pt.pt_argv = argv
pt.pt_dict = dict
return typvalt(eval.VAR_PARTIAL, {v_partial=pt})
else
return typvalt(eval.VAR_FUNC, {
v_string=eval.xmemdupz(to_cstr(l.value), #l.value)
})
end
end,
}
local special_vals = nil
lua2typvalt = function(l, processed)
if not special_vals then
special_vals = {
[null_string] = {'VAR_STRING', {v_string=ffi.cast('char_u*', nil)}},
[null_list] = {'VAR_LIST', {v_list=ffi.cast('list_T*', nil)}},
[null_dict] = {'VAR_DICT', {v_dict=ffi.cast('dict_T*', nil)}},
[nil_value] = {'VAR_SPECIAL', {v_special=eval.kSpecialVarNull}},
[true] = {'VAR_SPECIAL', {v_special=eval.kSpecialVarTrue}},
[false] = {'VAR_SPECIAL', {v_special=eval.kSpecialVarFalse}},
}
for k, v in pairs(special_vals) do
local tmp = function(typ, vval)
special_vals[k] = function()
return typvalt(eval[typ], vval)
end
end
tmp(v[1], v[2])
end
end
processed = processed or {}
if l == nil or l == nil_value then
return special_vals[nil_value]()
elseif special_vals[l] then
return special_vals[l]()
elseif type(l) == 'table' then
if l[type_key] then
return lua2typvalt_type_tab[l[type_key]](l, processed)
else
if l[1] then
return lua2typvalt_type_tab[list_type](l, processed)
else
return lua2typvalt_type_tab[dict_type](l, processed)
end
end
elseif type(l) == 'number' then
return typvalt(eval.VAR_FLOAT, {v_float=l})
elseif type(l) == 'string' then
return typvalt(eval.VAR_STRING, {v_string=eval.xmemdupz(to_cstr(l), #l)})
elseif type(l) == 'cdata' then
local tv = typvalt(eval.VAR_UNKNOWN)
eval.copy_tv(l, tv)
return tv
end
end
local function void(ptr)
return ffi.cast('void*', ptr)
end
local alloc_logging_helpers = {
list = function(l) return {func='calloc', args={1, ffi.sizeof('list_T')}, ret=void(l)} end,
li = function(li) return {func='malloc', args={ffi.sizeof('listitem_T')}, ret=void(li)} end,
dict = function(d) return {func='malloc', args={ffi.sizeof('dict_T')}, ret=void(d)} end,
di = function(di, size)
return {func='malloc', args={ffi.offsetof('dictitem_T', 'di_key') + size + 1}, ret=void(di)}
end,
str = function(s, size) return {func='malloc', args={size + 1}, ret=void(s)} end,
freed = function(p) return {func='free', args={p and void(p)}} end,
}
return {
null_string=null_string,
null_list=null_list,
null_dict=null_dict,
list_type=list_type,
dict_type=dict_type,
func_type=func_type,
int_type=int_type,
flt_type=flt_type,
nil_value=nil_value,
type_key=type_key,
list=list,
lst2tbl=lst2tbl,
dct2tbl=dct2tbl,
lua2typvalt=lua2typvalt,
typvalt2lua=typvalt2lua,
typvalt=typvalt,
li_alloc=li_alloc,
dict_iter=dict_iter,
list_iter=list_iter,
first_di=first_di,
alloc_logging_helpers=alloc_logging_helpers,
list_items=list_items,
dict_items=dict_items,
}