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local t = require('test.unit.testutil')
local t_eval = require('test.unit.eval.testutil')
local cimport = t.cimport
local to_cstr = t.to_cstr
local ffi = t.ffi
local list_type = t_eval.list_type
local dict_type = t_eval.dict_type
local func_type = t_eval.func_type
local nil_value = t_eval.nil_value
local int_type = t_eval.int_type
local flt_type = t_eval.flt_type
local type_key = t_eval.type_key
local api =
cimport('./src/nvim/api/private/defs.h', './src/nvim/api/private/t.h', './src/nvim/memory.h')
local obj2lua
local obj2lua_tab = nil
local function init_obj2lua_tab()
if obj2lua_tab then
return
end
obj2lua_tab = {
[tonumber(api.kObjectTypeArray)] = function(obj)
local ret = { [type_key] = list_type }
for i = 1, tonumber(obj.data.array.size) do
ret[i] = obj2lua(obj.data.array.items[i - 1])
end
if ret[1] then
ret[type_key] = nil
end
return ret
end,
[tonumber(api.kObjectTypeDictionary)] = function(obj)
local ret = {}
for i = 1, tonumber(obj.data.dictionary.size) do
local kv_pair = obj.data.dictionary.items[i - 1]
ret[ffi.string(kv_pair.key.data, kv_pair.key.size)] = obj2lua(kv_pair.value)
end
return ret
end,
[tonumber(api.kObjectTypeBoolean)] = function(obj)
if obj.data.boolean == false then
return false
else
return true
end
end,
[tonumber(api.kObjectTypeNil)] = function(_)
return nil_value
end,
[tonumber(api.kObjectTypeFloat)] = function(obj)
return tonumber(obj.data.floating)
end,
[tonumber(api.kObjectTypeInteger)] = function(obj)
return { [type_key] = int_type, value = tonumber(obj.data.integer) }
end,
[tonumber(api.kObjectTypeString)] = function(obj)
return ffi.string(obj.data.string.data, obj.data.string.size)
end,
}
end
obj2lua = function(obj)
init_obj2lua_tab()
return (
(obj2lua_tab[tonumber(obj['type'])] or function(obj_inner)
assert(
false,
'Converting ' .. tostring(tonumber(obj_inner['type'])) .. ' is not implementing yet'
)
end)(obj)
)
end
local obj = function(typ, data)
return ffi.gc(ffi.new('Object', { ['type'] = typ, data = data }), api.api_free_object)
end
local lua2obj
local lua2obj_type_tab = {
[int_type] = function(l)
return obj(api.kObjectTypeInteger, { integer = l.value })
end,
[flt_type] = function(l)
return obj(api.kObjectTypeFloat, { floating = l })
end,
[list_type] = function(l)
local len = #l
local arr = obj(api.kObjectTypeArray, {
array = {
size = len,
capacity = len,
items = ffi.cast('Object *', api.xmalloc(len * ffi.sizeof('Object'))),
},
})
for i = 1, len do
arr.data.array.items[i - 1] = ffi.gc(lua2obj(l[i]), nil)
end
return arr
end,
[dict_type] = function(l)
local kvs = {}
for k, v in pairs(l) do
if type(k) == 'string' then
kvs[#kvs + 1] = { k, v }
end
end
local len = #kvs
local dct = obj(api.kObjectTypeDictionary, {
dictionary = {
size = len,
capacity = len,
items = ffi.cast('KeyValuePair *', api.xmalloc(len * ffi.sizeof('KeyValuePair'))),
},
})
for i = 1, len do
local key, val = unpack(kvs[i])
dct.data.dictionary.items[i - 1] = ffi.new(
'KeyValuePair',
{ key = ffi.gc(lua2obj(key), nil).data.string, value = ffi.gc(lua2obj(val), nil) }
)
end
return dct
end,
}
lua2obj = function(l)
if type(l) == 'table' then
if l[type_key] then
return lua2obj_type_tab[l[type_key]](l)
else
if l[1] then
return lua2obj_type_tab[list_type](l)
else
return lua2obj_type_tab[dict_type](l)
end
end
elseif type(l) == 'number' then
return lua2obj_type_tab[flt_type](l)
elseif type(l) == 'boolean' then
return obj(api.kObjectTypeBoolean, { boolean = l })
elseif type(l) == 'string' then
return obj(
api.kObjectTypeString,
{ string = {
size = #l,
data = api.xmemdupz(to_cstr(l), #l),
} }
)
elseif l == nil or l == nil_value then
return obj(api.kObjectTypeNil, { integer = 0 })
end
end
return {
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,
obj2lua = obj2lua,
lua2obj = lua2obj,
}
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