diff options
Diffstat (limited to 'runtime/lua/vim/shared.lua')
| -rw-r--r-- | runtime/lua/vim/shared.lua | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/runtime/lua/vim/shared.lua b/runtime/lua/vim/shared.lua index 6e40b6ca52..1cf618725d 100644 --- a/runtime/lua/vim/shared.lua +++ b/runtime/lua/vim/shared.lua @@ -12,7 +12,7 @@ local vim = vim or {} --- same functions as those in the input table. Userdata and threads are not --- copied and will throw an error. --- ----@param orig Table to copy +---@param orig table Table to copy ---@returns New table of copied keys and (nested) values. function vim.deepcopy(orig) end -- luacheck: no unused vim.deepcopy = (function() @@ -21,17 +21,16 @@ vim.deepcopy = (function() end local deepcopy_funcs = { - table = function(orig) + table = function(orig, cache) + if cache[orig] then return cache[orig] end local copy = {} - if vim._empty_dict_mt ~= nil and getmetatable(orig) == vim._empty_dict_mt then - copy = vim.empty_dict() - end - + cache[orig] = copy + local mt = getmetatable(orig) for k, v in pairs(orig) do - copy[vim.deepcopy(k)] = vim.deepcopy(v) + copy[vim.deepcopy(k, cache)] = vim.deepcopy(v, cache) end - return copy + return setmetatable(copy, mt) end, number = _id, string = _id, @@ -40,10 +39,10 @@ vim.deepcopy = (function() ['function'] = _id, } - return function(orig) + return function(orig, cache) local f = deepcopy_funcs[type(orig)] if f then - return f(orig) + return f(orig, cache or {}) else error("Cannot deepcopy object of type "..type(orig)) end @@ -560,6 +559,7 @@ do return type(val) == t or (t == 'callable' and vim.is_callable(val)) end + ---@private local function is_valid(opt) if type(opt) ~= 'table' then return false, string.format('opt: expected table, got %s', type(opt)) |