Ten fixes, each with a test that fails without it.
- Status lines are cut at 255 bytes (`0x41a049`), banners too (`0x419f19`), and an empty line is dropped without raising the severity (`0x41a05f`).
- A message frame's `bytes=N` holds N−1 bytes. A negative N empties its lines, since `0x771692` tests only zero.
- The reward panel after a progress panel plays the completion chime (`0xbe081c`, `0x500d36`).
- A panel opens only for a held unit, game object or item (`0x500c16`-`0x500c35`).
- Readable pages are rewritten into their language for the reader (`0x49b560`).
- A page of 1024 bytes or more reads empty, as `0x4191b0` does at capacity 0x400.
- World entry wipes only the four unsaved caches (`0x555740`)., keeping saved asks.
- Two comments cite the right addresses.
Fixes#2580Fixes#2690Fixes#2692Fixes#2694Fixes#2696Fixes#2700Fixes#2701Fixes#2710Fixes#2711Fixes#2712🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Lua numerals and the sscanf ports used Rust's correctly rounded parse. 1.12.1's C runtime rounds its own way: `__RoundMan` rounds up only when the round bit and some bit two past it are set (`0x40fb43`), so ties truncate and `6e23` reads one ulp low. It flushes results below 2^-1022 to +0 (`0x741ed3`) and keeps 24 digits (`0x41157f`). benilla-re holds these at proof two.
One port of that conversion now lives in benilla-lua (`strtod.rs`, `ld12.rs`). It serves `str2d` and `%f`, which rounds once to float (`0x40feef`) and consumes a digitless exponent marker (`0x7451a5`). `%d` wraps in 32 bits (`0x7456c9`). The time zone is read once per process (`0x414568`), and two client faults are written as Deviations.
A table of 3487 cases generated from benilla-re's transcription, and the exe's fixed cases, pin it.
Fixes#2647Fixes#2648Fixes#2649Fixes#2650Fixes#2651Fixes#2652🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A script error reached the `seterrorhandler` function once per frame, from a queue, after every other listener had run. In 1.12.1 the handler is the error function of the pcall each script runner makes (`0x704e4f`-`0x704e79`; the error function `0x703b40`). So it runs at the raise, inside the failing script: `this`, `event` and `arg1` are still the failing handler's, `debugstack()` shows the failing call, and the event's next listener has not run yet.
Every benilla runner now passes that error function: handlers, OnLoad, file chunks, RunScript, key bindings and slash commands. It returns the handler's result, as `0x703b40` does. The queue is gone.
A handler body that fails to compile reaches no handler (`0x704c70`). benilla's host log keeps each original fault, and `/errors` replays the ones raised before benilla's layer loaded.
Tests cover the raise-time globals, the stack, the listener order, OnUpdate and chunks.
Fixes#2656🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Lua 5.0 behaviours of the client that an addon can observe, which benilla-lua's 5.1 base got differently:
- string.sub and string.find keep a position's low 32 bits (`0x7fbd55`).
- An escaped byte at or above 0x80 matches nothing (`0x7fcbc6`).
- `error()` checks its argument (`0x702993`) and adds the position at any level but 0 (`0x7029a8`).
- `__unm` gets the operand and nil (`0x6f8edc`).
- `__index` chains reach 102 tables and `__newindex` 101.
- math.deg multiplies by 180/pi (`0x7fb14d`).
The bare aliases run as their own `compat.lua` chunk (`0x703b21`), each on the client's line. Its closures keep a local `math`, so their error lines match and replacing the global `math` leaves them working.
`seterrorhandler` keeps the top value, and nil clears it (`0x702930`).
Each fix has a test.
Fixes#2632Fixes#2633Fixes#2634Fixes#2635Fixes#2636Fixes#2637Fixes#2638Fixes#2639Fixes#2640Fixes#2654🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
On Windows, `vm_parity`'s cos sweep failed on one item, `cos(1e300)`, whose last digit was the host libm's. 1.12.1 never computes it. `math_sin`, `math_cos` and `math_tan` are a bare `fsin`, `fcos` and `fptan` (`0x7fae1d`, `0x7fae4d`, `0x7fae7d`), and a finite operand of 2^63 or more is outside the x87's range and is left unchanged:
- `math.sin(1e300)` and `math.cos(1e300)` answer `1e300`;
- `math.tan` answers `-1.#IND`: `fptan` pushes nothing, so the pop at `0x7fae84` takes the operand and `0x7fae86` stores from an empty stack.
benilla-lua now answers the same. The sweep's recorded answers for that argument are the reference's, the same on every platform.
Test: the parity sweep's `1e300` items for `math.sin`, `math.cos`, `math.tan` and their degree forms.
Fixes#1999🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Ten differences from 1.12.1 in the UI core.
- StatusBar range and value follow `0x783270`/`0x7832d0` (a reversed pair collapses, a value before a range is dropped); the health watchers set both each update; the fill draws once both are set, its coordinates built from scratch (`0x7833c0`).
- A full collection runs before PLAYER_LOGIN (`0x490941`); the addon harness runs the client's world-entry cascade.
- Every index argument raises its own usage line (`0x6f34d0`, then the binding's literal).
- Strata, layer and frame-type names match whole (`0x6ee32c`); stack lines name unnamed functions by global (`0x6fbf90`).
- SetCursor takes a custom file (`0x523c40`); EditBox accepts OnInputLanguageChanged (`0x77a40d`).
- debugprofilestop answers milliseconds (a Deviation: multi-core 1.12.1 returns cycles).
A byte audit re-derived every address.
Fixes#1178Fixes#1915Fixes#1917Fixes#1908Fixes#1839Fixes#1869Fixes#1170Fixes#1105Fixes#1186Fixes#1952🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Six places where benilla's Lua answered unlike 1.12.1's:
- The lexer took `[=[` long-string levels; 1.12.1's `luaX_lex` tests one byte after `[` (`0x6ff793`) and `--[=[` is a line comment (`0x6ff6c9`).
- `math.random` ran a glibc-style `rand` seeded with 1; now MSVC's (`0x7400e5`, `% 0x7fff` times 1/32767 at `0x7fb310`), clock-seeded as the client is (`0x5d1c8b`), fixed in captures and the addon harness.
- `getfenv`/`setfenv` honour a raw `__fenv` field (`0x702ba0`), and `setfenv` returns nothing.
- An object's text is `type: %08X` in the embedding API too (`0x74301d`).
- `time` converts a date table through MSVC's `_mktime` (`0x74066b`).
- `date` formats with MSVC's C-locale patterns (`0x8323a0`): `%c` is `09/09/01 01:46:40`, `#` drops zeros.
Each has a test that fails without it; the addon corpus parses as before.
Fixes#1257Fixes#1258Fixes#1510Fixes#1511Fixes#1503Fixes#1504🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
benilla-lua's tables and globals now follow the client's Lua 5.0, not 5.1.
Tables:
- They size, fill and rehash as 5.0's ltable.c does: the hash part doubles (`0x6fab90`), and a log size of 0 is the shared dummy (`0x6fa601`).
- A hash part past 2^24 nodes raises `table overflow`.
- Constructors store every 32 items.
- A weak table's clearing removes the key, so `next` from it raises (`0x6f79d0`).
- A weak-keyed table keeps its string keys (`0x6f79f0`).
Globals and libraries:
- `ipairs` returns itself, and a second argument steps once.
- `setglobal` assigns the top of the stack.
- The state opens in the client's order, with no `_G`.
Each new test fails without its fix.
Fixes#1487Fixes#1789Fixes#1790Fixes#1169🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The collector now paces as the client's Lua 5.0 does.
The threshold:
- The state opens at 4× its count (`0x6f6ec8`), and InitLua then sets 256 KB (`0x7039f2`).
- After a collection it is the count plus the larger of the old headroom and a quarter of the count (`0x6fae00`). The headroom is capped at the free space in the client's six block pools, which a new book models (`0x6fae90`).
- The memory watch collects from a threshold of 0 (`0x703bd6`), and varargs never collect.
The stack and call records start at 45 and 8 slots and grow by 5.0's rule (`0x6f5f60`). They are checked once per collection, during mark, and halved under a quarter's use (`0x6f7949`). A tail call checks the stack where the call is made (`0x6f922c`).
A collection of a 10 MB heap takes about 1 ms; each change fails its test without it.
Fixes#1783Fixes#1784🤖 Generated with [Claude Code](https://claude.com/claude-code)
Lua memory now counts as the client's does:
- Every object is charged at its 32-bit Lua 5.0 size: a string is 17 bytes plus its length (`0x6f9da1`), a table header 32 (`0x6fa500`), a node 40, and a closure 36 plus 4 per upvalue (`0x6f9ebf`).
- Prototypes count 5.0's instructions and constants (`0x6fcb2b`).
- The string table and the concat buffer are counted as 5.0 sizes them.
The stock UI reads 10,618 KB, against 13,294 KB before.
The host's old C-host shim overrode benilla-lua's natives. It is gone:
- `collectgarbage` now moves the real collector, taking `__ftol`'s low word (`0x6f4400`);
- `gcinfo` reports that collector;
- `^` is the client's `math_pow` (`0x7fb4bd`);
- `loadstring` returns one value (`0x7032ba`).
An audit re-derived every size from the bytes. Each fix fails its test without it.
Fixes#1779Fixes#1780🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
benilla-lua's lexer and compiler now behave as the client's 5.0:
- A control byte is "invalid control char" (`0x6ffabb`).
- Every chunk lexes as source, binary ones too (`0x6f6a15`).
- Lines end at `\n` alone (`0x6ffb94`); a dot is never a NUL (`0x6ff98a`).
- A `while` condition over 100 instructions is too complex (`0x6fd03b`), counted as 5.0's code generator counts it.
- Upvalues get no name in errors (`0x6fc5e0`).
- `string.dump` refuses closures with upvalues, and dumps the stack top (`0x6f438a`, `0x6f4373`).
The client installs no Lua hook (`lua_sethook` has no caller), so the load's runaway guard has no client mechanism to follow. It is now an abort no `pcall` can catch, recorded as a deviation.
An audit re-derived every commit from the bytes. Each fix fails its test without it.
Fixes#1755Fixes#1756Fixes#1757Fixes#1758Fixes#1759Fixes#1767Fixes#1434Fixes#1445Fixes#1777Fixes#1778🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Dev builds get three tools, all behind the `dev` feature:
- **Hot reload:** an edited addon `.lua` is swapped into the closures already running, keeping state and event registrations. Edited XML handlers and benilla's own `assets/ui` layer reload too.
- **An addon profiler:** Lua time and heap per addon.
- **A Lua inspector:** tables, frame scripts and upvalues, with scalars editable in place.
benilla-mlua's `unsafe raw_vm` becomes a safe lent `with_vm`.
Ours on the branch:
- the top level is compared off the compile path, in a scratch heap;
- watched files are polled in slices, and each addon's XML is walked once per session;
- no lend while a callback of the state runs;
- profiler owners are cached per source epoch;
- key-ups reach the UI while an egui field has focus.
The player build carries none of it. Tests: the full gate chain on the merged tree.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Co-Authored-By: Sam <samuv.eth@gmail.com>
The table library and `unpack` now run as the client's 5.0 natives (`0x822d40`). benilla's closure layer over them is gone. `unpack` refuses past 2,048 slots (`0x6f2f43`) and reads its table alone. `getn` converts a numeric-string `n` (`0x6f4f80`). `next` says "for" (`0x871aac`).
The bit library answers unsigned except `arshift` and `mod` (`0x7faa6d`). Its folds take every argument, and `math.pow`, `atan2` and `mod` check argument 1 first.
A Rust callback's error now carries the caller's `file:line`, as `luaL_error` does (`0x6f4940`); only the sound verbs raise bare. Error text keeps its bytes, from `assert` to the error handler.
An audit re-derived every commit from the bytes. Each fix fails its test without it.
Fixes#1435Fixes#1448Fixes#1449Fixes#1480Fixes#1482Fixes#1483Fixes#1484Fixes#1485Fixes#1760Fixes#1761Fixes#1762Fixes#1763Fixes#1764Fixes#1765Fixes#1766Fixes#1771🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
benilla-lua's string and number library now answers as the client's:
- `string.byte` returns one byte (`0x7fc210`).
- `gsub` takes only a string or a function (`0x7fd163`), and `%0` raises (`0x7fce20`).
- `lower` and `upper` case-map UTF-8 (`0x7fbeb0`).
- `tonumber` with a base is MSVC's 32-bit `strtoul` (`0x40db09`), on every platform.
- Chunk names cut at a NUL and at `\n` (`0x835144`).
- `string.format` is the client's native one (`0x7fd3d0`): `__ftol` conversions, `%q`'s table, one-digit `n$`, and the client's errors.
- Number text is the MSVC CRT's, ported down to `$I10_OUTPUT`: `1.#INF`, `-1.#IND`, `1e+020`.
- A NaN made from numbers is the x87 indefinite, and the math library returns the runtime's own answers at infinities.
A fuzz against the client's own `sprintf`, run in emulation, matches 1.5M cases. Every fix fails its test without it. `tostring` and `%g` got faster.
Fixes#1367Fixes#1368Fixes#1373Fixes#1375Fixes#1376Fixes#1450Fixes#1481Fixes#1486Fixes#1770🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
benilla-lua now matches the client's Lua 5.0 wherever an addon can see the difference:
- Number keys hash as `hashnum` does (`0x6fa260`), so `pairs` walks them in the client's order.
- Calls nest at most 4096 deep (`0x6f61c0`).
- `^` calls the global `__pow` (`0x6f9b5e`).
- The parser's limits and messages are the client's (`0x6ff440`); the client has no assignment limit.
- A numeric for's variable is its counter (`0x6fe380`, `0x6f9262`).
- A generic for uses `forlist`'s layout (`0x6fe540`): the first name is the control, and closures share the variables.
- Only calls name a callee (`0x6fc499`), and a stray token reports `<eof> expected` (`0x871cf4`).
Each fix has a test that fails without it. Two audits re-derived every address from the bytes. The bench is faster or level.
Fixes#1369Fixes#1370Fixes#1371Fixes#1372Fixes#1374Fixes#1377Fixes#1752Fixes#1753Fixes#1754🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The script host now runs on benilla-lua alone. The vendored C Lua 5.1.5 (`third_party/lua-src`) and mlua are removed, about 17k lines. `vm_parity` checks benilla-lua against the answers the C build recorded on Linux and macOS, and `front_end` checks every corpus chunk's compiled shape against the C build's digest. `GRAMMAR.md` records each grammar change from 5.1, by client address.
A handler's `this`, `event` and `arg1`… are bound in one VM call. An event fire saves and restores `event`, while the handler runner saves only `this` (`0x704d50`).
Ours on the branch: VM fixes from review (hook dispatch counts, registers and frames around a collection, protected-call handlers, library errors) and `vm_parity`'s two-VM leftovers removed.
Tests: the full gate chain on the merged tree, `vm_parity` and `front_end` among them. Live: smoke and a stock-glue login. Load time is level with C Lua, and memory is within 7%.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Co-Authored-By: Sam <samuv.eth@gmail.com>
benilla-lua is a Lua 5.1.5 interpreter in Rust that speaks the 1.12.1 client's grammar. It is opt-in behind the `benilla-vm` feature, with `benilla-mlua`, the slice of mlua that benilla-ui uses, over it. The C build stays the default. Its front end ports 5.1.5's `lparser.c` and `lcode.c`, so registers, limits and messages match the C build's.
Our finish on top:
- the collector counts growth as C does, off the write path;
- frames under a leaky generic `for` start nil, as `luaD_precall`;
- the budget hook counts what C dispatches, and costs nothing when unset;
- `__index` chains stop at 100;
- mlua 0.11's conversions;
- `vm_parity` answers recorded per platform.
Tests: `vm_parity` on both VMs; the front-end corpus (8,543 chunks) against `string.dump`; 7,613 app and UI tests on benilla-lua. Built on macOS; Linux by CI.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Co-Authored-By: Sam <samuv.eth@gmail.com>
Sam Sung