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* test(harness): migrate away from magic globalsJustin M. Keyes2026-07-21
| | | | | | | | | | | | | | | | | | | | | Problem: The magic globals `it`, `describe`, etc., are more trouble than they are worth. - Hooking into `after_each` requires `getfenv()` hacks. - They confuse luals/emmylua, because the top-level `.luarc.json` isn't merged with `test/.luarc.json` (apparently a luals limitation?) - They totally defeat discoverability because the user just has to "know" about the various magic symbols. So they harm DX, which means they serve no purpose at all. Solution: - Expose the test API from `testutil`, so tests can call `t.it()`, `t.describe()`, etc., in the conventional way. - Drop `getfenv()` hacks. - Drop the `setfenv()` injection in `load_chunk`. - Drop `test/_meta.lua`.
* fix(lua): give nicer error message when trying to index vim.NILbfredl2026-06-29
| | | | | | | | | The added test shows the context, one expected a JSON field to be a Object but it was a null value pros: shows `vim.NIL` instead of `a userdata` cons: the context `field 'foo'` is lost. I think this is generated with internal magic which is hard to replicate.
* feat(stdlib): vim.json.decode() can allow comments #37795skewb1k2026-02-11
| | | | | | | | | Problem: `vim.json.decode()` could not parse JSONC (JSON with Comments) extension, which is commonly used in configuration files. Solution: Introduce an `skip_comments` option, which is disabled by default. When enabled, allows JavaScript-style comments within JSON data.
* feat(json): vim.json.encode() sort_keys #35574skewb1k2025-09-13
| | | | | | | | Problem: There is no way to ensure a stable key order when encoding a JSON string, which can be useful for comparisons and producing cleaner diffs. Solution: Introduce a `sort_keys` option for `vim.json.encode()`,which is disabled by default. When enabled, object keys are sorted in alphabetical order.
* feat(json): pretty-format (indent) with vim.json.encode() #35424skewb1k2025-09-07
| | | | | | | | | | | Problem: There is no straightforward way to pretty-print objects as JSON. The existing `vim.inspect` outputs LON. Solution: Introduce an `indent` option for `vim.json.encode()` which enables human-readable output with configurable indentation. Adapts PR to upstream: openresty/lua-cjson#114
* fix(vim.json): loss of precision on integers >14 digits #34876jade2025-07-10
| | | | | | | | | | Problem: multiple DAP servers keep assuming they can have internal IDs up to 2**52, which get corrupted by the Neovim JSON encoder. Solution: change (1) constant and add a test so nobody breaks it while updating the library. Fixes: https://github.com/neovim/neovim/issues/24532 Fixes: https://github.com/mfussenegger/nvim-dap/issues/1534 Fixes: https://github.com/facebook/buck2/issues/1032
* docs: misc #31479Justin M. Keyes2025-01-01
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* feat(stdlib): vim.json.encode(...,{escape_slash:boolean}) #30561Bartłomiej Maryńczak2024-12-06
| | | | | | | | | | | | Problem: vim.json.encode escapes every slash in string values (for example in file paths), and is not optional. Use-case is for preventing HTML injections (eg. injecting `</script>` closing tag); in the context of Nvim this is rarely useful. Solution: - Add a `escape_slash` flag to `vim.json.encode`. - Defaults to `false`. (This is a "breaking" change, but more like a bug fix.)
* fix(vim.json): properly treat luanil options as booleans (#28622)zeertzjq2024-05-03
| | | Note: Upstream doesn't have this. It's an Nvim addition.
* test: improve test conventionsdundargoc2024-04-23
| | | | | | | | | Specifically, functions that are run in the context of the test runner are put in module `test/testutil.lua` while the functions that are run in the context of the test session are put in `test/functional/testnvim.lua`. Closes https://github.com/neovim/neovim/issues/27004.
* refactor(test): inject after_each differentlyLewis Russell2024-04-10
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* test: improve test conventionsdundargoc2024-04-08
| | | | Work on https://github.com/neovim/neovim/issues/27004.
* refactor: format test/*Justin M. Keyes2024-01-03
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* fix(json): allow objects with empty keys #25564Emanuel2023-12-06
| | | | | | | | | | | | | | | | | | | | Problem: Empty string is a valid JSON key, but json_decode() treats an object with empty key as ":help msgpack-special-dict". #20757 :echo json_decode('{"": "1"}') {'_TYPE': [], '_VAL': [['', '1']]} Note: vim returns `{'': '1'}`. Solution: Allow empty string as an object key. Note that we still (currently) disallow empty keys in object_to_vim() (since 7c01d5ff9286d262097484c680e3a4eab49e2911): https://github.com/neovim/neovim/blob/f64e4b43e1191ff30d902730f752875aa55682ce/src/nvim/api/private/converter.c#L333-L334 Fix #20757 Co-authored-by: Justin M. Keyes <justinkz@gmail.com>
* fix(vim.json)!: remove global options, "null", "array_mt" #24070Justin M. Keyes2023-06-21
| | | | | | | | | | | | | | | | | | | | | | | | | Problem: - `vim.json` exposes various global options which: - affect all Nvim Lua plugins (especially the LSP client) - are undocumented and untested - can cause confusing problems such as: https://github.com/codota/tabnine-nvim/commit/cc76ae3abe2f129d44b5a8edee2529e0ee0dcf69 - `vim.json` exposes redundant mechanisms: - `vim.json.null` is redundant with `vim.NIL`. - `array_mt` is redundant because Nvim uses a metatable (`vim.empty_dict()`) for empty dict instead, which `vim.json` is configured to use by default (see `as_empty_dict`). Example: ``` :lua vim.print(vim.json.decode('{"bar":[],"foo":{}}')) --> { bar = {}, foo = vim.empty_dict() } ``` Thus we don't need to also decorate empty arrays with `array_mt`. Solution: Remove the functions from the public vim.json interface. Comment-out the implementation code to minimize drift from upstream. TODO: - Expose the options as arguments to `vim.json.new()`
* test: add tests for vim.jsonMichael Lingelbach2021-09-26