diff options
Diffstat (limited to 'runtime')
| -rw-r--r-- | runtime/doc/lua.txt | 5 | ||||
| -rw-r--r-- | runtime/lua/vim/shared.lua | 11 |
2 files changed, 14 insertions, 2 deletions
diff --git a/runtime/doc/lua.txt b/runtime/doc/lua.txt index 800f24b5c9..7f376cbbf0 100644 --- a/runtime/doc/lua.txt +++ b/runtime/doc/lua.txt @@ -908,7 +908,10 @@ deep_equal({a}, {b}) *vim.deep_equal()* deepcopy({orig}) *vim.deepcopy()* Returns a deep copy of the given object. Non-table objects are copied as in a typical Lua assignment, whereas table objects - are copied recursively. + are copied recursively. Functions are naively copied, so + functions in the copied table point to the same functions as + those in the input table. Userdata and threads are not copied + and will throw an error. Parameters: ~ {orig} Table to copy diff --git a/runtime/lua/vim/shared.lua b/runtime/lua/vim/shared.lua index 1bf1c63fd7..d18fcfaf95 100644 --- a/runtime/lua/vim/shared.lua +++ b/runtime/lua/vim/shared.lua @@ -8,6 +8,9 @@ local vim = vim or {} --- Returns a deep copy of the given object. Non-table objects are copied as --- in a typical Lua assignment, whereas table objects are copied recursively. +--- Functions are naively copied, so functions in the copied table point to the +--- same functions as those in the input table. Userdata and threads are not +--- copied and will throw an error. --- --@param orig Table to copy --@returns New table of copied keys and (nested) values. @@ -34,10 +37,16 @@ vim.deepcopy = (function() string = _id, ['nil'] = _id, boolean = _id, + ['function'] = _id, } return function(orig) - return deepcopy_funcs[type(orig)](orig) + local f = deepcopy_funcs[type(orig)] + if f then + return f(orig) + else + error("Cannot deepcopy object of type "..type(orig)) + end end end)() |