diff options
Diffstat (limited to 'runtime/lua/vim/shared.lua')
| -rw-r--r-- | runtime/lua/vim/shared.lua | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/runtime/lua/vim/shared.lua b/runtime/lua/vim/shared.lua index ea1117a906..6eb7a970e4 100644 --- a/runtime/lua/vim/shared.lua +++ b/runtime/lua/vim/shared.lua @@ -20,6 +20,11 @@ vim.deepcopy = (function() local deepcopy_funcs = { table = function(orig) local copy = {} + + if vim._empty_dict_mt ~= nil and getmetatable(orig) == vim._empty_dict_mt then + copy = vim.empty_dict() + end + for k, v in pairs(orig) do copy[vim.deepcopy(k)] = vim.deepcopy(v) end @@ -169,9 +174,19 @@ function vim.tbl_extend(behavior, ...) if (behavior ~= 'error' and behavior ~= 'keep' and behavior ~= 'force') then error('invalid "behavior": '..tostring(behavior)) end + + if select('#', ...) < 2 then + error('wrong number of arguments (given '..tostring(1 + select('#', ...))..', expected at least 3)') + end + local ret = {} + if vim._empty_dict_mt ~= nil and getmetatable(select(1, ...)) == vim._empty_dict_mt then + ret = vim.empty_dict() + end + for i = 1, select('#', ...) do local tbl = select(i, ...) + vim.validate{["after the second argument"] = {tbl,'t'}} if tbl then for k, v in pairs(tbl) do if behavior ~= 'force' and ret[k] ~= nil then |