141dc6d55e
* Add luacheck ci job * Fix most of the linting issues * fixup: lint Co-authored-by: TJ DeVries <devries.timothyj@gmail.com>
57 lines
1.2 KiB
Lua
57 lines
1.2 KiB
Lua
vim.deepcopy = (function()
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local function _id(v)
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return v
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end
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local deepcopy_funcs = {
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table = function(orig)
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local copy = {}
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if vim._empty_dict_mt ~= nil and getmetatable(orig) == vim._empty_dict_mt then
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copy = vim.empty_dict()
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end
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for k, v in pairs(orig) do
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copy[vim.deepcopy(k)] = vim.deepcopy(v)
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end
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if getmetatable(orig) then
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setmetatable(copy, getmetatable(orig))
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end
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return copy
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end,
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['function'] = _id or function(orig)
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local ok, dumped = pcall(string.dump, orig)
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if not ok then
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error(debug.traceback(dumped))
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end
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local cloned = loadstring(dumped)
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local i = 1
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while true do
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local name = debug.getupvalue(orig, i)
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if not name then
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break
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end
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debug.upvaluejoin(cloned, i, orig, i)
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i = i + 1
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end
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return cloned
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end,
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number = _id,
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string = _id,
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['nil'] = _id,
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boolean = _id,
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}
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return function(orig)
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local f = deepcopy_funcs[type(orig)]
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if f then
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return f(orig)
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else
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error("Cannot deepcopy object of type "..type(orig))
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end
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end
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end)()
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