CHANGELOG.md

v0.8.6

• Fixed bug when recycled Registry slot can be set to Nil

v0.8.5

• Fixed potential unsoundness when using Layout::from_size_align_unchecked and Rust 1.65+
• Performance optimizations around string and table creation in standalone mode
• Added fast track path to Table get/set/len methods without metatable
• Added new methods push/pop/raw_push/raw_pop to Table
• Fix getting caller information from Lua::load
• Better checks and tests when trying to modify a Luau readonly table

v0.8.4

• Minimal Luau updated to 0.548

v0.8.3

• Close to-be-closed variables for Lua 5.4 when using call_async functions (#192)
• Fixed Lua assertion when inspecting another thread stack. (#195)
• Use more reliable way to create LuaJIT VM (which can fail if use Rust allocator on non-x86 platforms)

v0.8.2

• Performance optimizations in handling UserData
• Minimal Luau updated to 0.536
• Fixed bug in Function::bind when passing empty binds and no arguments (#189)

v0.8.1

• Added Lua::create_proxy for accessing to UserData static fields and functions without instance
• Added Table::to_pointer() and String::to_pointer() functions
• Bugfixes and improvements (#176 #179)

v0.8.0

Changes since 0.7.4

• Roblox Luau support
• Removed C glue
• Added async support to __index and __newindex metamethods
• Added Function::info() to get information about functions (#149).
• Added parking_lot dependency under feature flag (for UserData)
• Hash implementation for Lua String
• Added Value::to_pointer() function
• Performance improvements

Breaking changes:

• Refactored AsChunk trait (added implementation for Path and PathBuf).

v0.8.0-beta.5

• Lua sources no longer needed to build modules
• Added __iter metamethod for Luau
• Added Value::to_pointer() function
• Added Function::coverage for Luau to obtain coverage report
• Bugfixes and improvements (#153 #161 #168)

v0.8.0-beta.4

• Removed &Lua from Lua::set_interrupt as it's not safe (introduced in v0.8.0-beta.3)
• Enabled Lua::gc_inc for Luau
• Luau debug module marked as safe (enabled by default)
• Implemented Hash for Lua String
• Support mode options in collectgarbage for Luau
• Added ability to set global Luau compiler (used for loading all chunks).
• Refactored AsChunk trait (breaking changes). AsChunk now implemented for Path and PathBuf to load lua files from fs.
• Added parking_lot dependency and feature flag (for UserData)
• Added Function::info() to get information about functions (#149).
• Bugfixes and improvements (#104 #142)

v0.8.0-beta.3

• Luau vector constructor
• Luau sandboxing support
• Luau interrupts (yieldable)
• More Luau compiler options (mutable globals)
• Other performance improvements

v0.8.0-beta.2

• Luau vector datatype support
• Luau readonly table attribute
• Other Luau improvements

v0.8.0-beta.1

• Roblox Luau support
• Refactored ffi module. C glue is no longer required
• Added async support to __index and __newindex metamethods

v0.7.4

• Improved Lua::create_registry_value to reuse previously expired registry keys. No need to call Lua::expire_registry_values when creating/dropping registry values.
• Added Lua::replace_registry_value to change value of an existing Registry Key
• Async calls optimization

v0.7.3

• Fixed cross-compilation issue (introduced in 84a174c)

v0.7.2

• Allow pkg-config to omit include paths if they equals to standard (#114).
• Various bugfixes (eg. #121)

v0.7.1

• Fixed traceback generation for errors (#112)
• Lua::into_static/from_static methods have been removed from the docs and are discouraged for use

v0.7.0

• New "application data" api to store arbitrary objects inside Lua
• New feature flag luajit52 to build/support LuaJIT with partial compatibility with Lua 5.2
• Added async meta methods for all Lua (except 5.1)
• Added AnyUserData::take() to take UserData objects from Lua
• Added set_nth_user_value/get_nth_user_value to AnyUserData for all Lua versions
• Added set_named_user_value/get_named_user_value to AnyUserData for all Lua versions
• Added Lua::inspect_stack() to get information about the interpreter runtime stack
• Added set_warning_function/remove_warning_function/warning functions to Lua for 5.4
• Added TableExt::call() to call tables with __call metamethod as functions
• Added Lua::unload() to unload modules
• ToLua implementation for arrays changed to const generics
• Added thread (coroutine) cache for async execution (disabled by default and works for Lua 5.4/JIT)
• LuaOptions and (De)SerializeOptions marked as const
• Fixed recursive tables serialization when using serde::Serialize for Lua Tables
• Improved errors reporting. Now source included to fmt::Display implementation for Error::CallbackError
• Major performance improvements

v0.6.6

• Fixed calculating LUA_REGISTRYINDEX when cross-compiling for lua51/jit (#82)
• Updated documentation & examples

v0.6.5

• Fixed bug when polling async futures (#77)
• Refactor Waker handling in async code (+10% performance gain when calling async functions)
• Added Location::caller() information to Lua::load() if chunk's name is None (Rust 1.46+)
• Added serialization of i128/u128 types (serde)

v0.6.4

• Performance optimizations
• Fixed table traversal used in recursion detection in deserializer

v0.6.3

• Disabled catching Rust panics in userdata finalizers on drop. It also has positive performance impact.
• Added Debug::event() to the hook's Debug structure
• Simplified interface of hook::HookTriggers
• Added finalizer to ExtraData in module mode. This helps avoiding memory leak on closing state when Lua unloads modules and frees memory.
• Added DeserializeOptions struct to control deserializer behavior (from_value_with function).

v0.6.2

• New functionality: Lua::load_from_function() and Lua::create_c_function()
• Many optimizations in callbacks/userdata creation and methods execution

v0.6.1

• Update chunk! documentation (stable Rust limitations)
• Fixed Lua sequence table conversion to HashSet/BTreeSet
• once_cell dependency lowered to 1.0

v0.6.0

Changes since 0.5.4

• New UserDataFields API
• Full access to UserData metatables with support of setting arbitrary fields.
• Implement UserData for Rc<RefCell<T>>/Arc<Mutex<T>>/Arc<RwLock<T>> where T: UserData.
• Added SerializeOptions to to change default Lua serializer behaviour (eg. nil/null/array serialization)
• Added LuaOptions to customize Lua/Rust behaviour (currently panic handling)
• Added ToLua/FromLua implementation for Box<str> and Box<[T]>.
• Added Thread::reset() for luajit/lua54 to recycle threads (coroutines) with attaching a new function.
• Added chunk! macro support to load chunks of Lua code using the Rust tokenizer and optionally capturing Rust variables.
• Improved errors reporting (Error's __tostring method formats full stacktraces). This is useful in a module mode.
• Added String::to_string_lossy
• Various bugfixes and improvements

Breaking changes:

• Errors are always Send + Sync to be compatible with the anyhow crate.
• Removed Result from LuaSerdeExt::null() and LuaSerdeExt::array_metatable() (never fails)
• Removed Result from Function::dump() (never fails)
• Removed AnyUserData::has_metamethod() (in favour of full access to metatables)

v0.6.0-beta.3

• Errors are always Send + Sync to be compatible with anyhow crate
• Implement UserData for Rc<RefCell>/Arc<Mutex>/Arc<RwLock>
• Added __ipairs metamethod for Lua 5.2
• Added String::to_string_lossy
• Various bugfixes and improvements

v0.6.0-beta.2

• [Breaking] Removed AnyUserData::has_metamethod()
• Added Thread::reset() for luajit/lua54 to recycle threads. It's possible to attach a new function to a thread (coroutine).
• Added chunk! macro support to load chunks of Lua code using the Rust tokenizer and optinally capturing Rust variables.
• Improved error reporting (Error's __tostring method formats full stacktraces). This is useful in the module mode.

v0.6.0-beta.1

• New UserDataFields API
• Allow to define arbitrary MetaMethods
• MetaMethods::name() is public
• Do not trigger longjmp in Rust to prevent unwinding across FFI boundaries. See rust-lang/rust#83541
• Added SerializeOptions to to change default Lua serializer behaviour (eg. nil/null/array serialization)
• [Breaking] Removed Result from LuaSerdeExt::null() and LuaSerdeExt::array_metatable() (never fails)
• [Breaking] Removed Result from Function::dump() (never fails)
• ToLua/FromLua implementation for Box<str> and Box<[T]>
• [Breaking] Added LuaOptions to customize Lua/Rust behaviour (currently panic handling)
• Various bugfixes and performance improvements

v0.5.4

• Build script improvements
• Improvements in panic handling (resume panic on value popping)
• Fixed bug serializing 3rd party userdata (causes segfault)
• Make error::Error non exhaustive

v0.5.3

• Fixed bug when returning nil-prefixed multi values from async function (+ test)
• Performance optimisation for async callbacks (polling)

v0.5.2

• Some performance optimisations (callbacks)
• ToLua implementation for Cow<str> and Cow<CStr>
• Fixed bug with Scope destruction of partially polled futures

v0.5.1

• Support cross compilation that should work well for vendored builds (including LuaJIT with some restrictions)
• Fix numeric types conversion for 32bit Lua
• Update tokio to 1.0 for async examples

v0.5.0

• Serde support under serialize feature flag.
• Re-export mlua_derive.
• impl ToLua and FromLua for HashSet and BTreeSet

v0.4.2

• Added Function::dump() to dump lua function to a binary chunk
• Added ChunkMode enum to mark chunks as text or binary
• Updated set_memory_limit doc

v0.4.0

• Lua 5.4 support with MetaMethod::Close.
• lua53 feature is disabled by default. Now preferred Lua version have to be chosen explicitly.
• Provide safety guaraness for Lua state, which means that potenially unsafe operations, like loading C modules (using require or package.loadlib) are disabled. Equalient for the previous Lua::new() function is Lua::unsafe_new().
• New send feature to require Send.
• New module feature, that disables linking to Lua Core Libraries. Required for modules.
• Don't allow 'callback outlive 'lua in Lua::create_function() to fix the unsoundness.
• Added Lua::into_static() to make 'static Lua state. This is useful to spawn async Lua threads that requires 'static.
• New function Lua::set_memory_limit() (similar to rlua) to enable memory restrictions in Lua VM (requires Lua >= 5.2).
• Scope, temporary removed in v0.3, is back with async support.
• Removed deprecated Table::call() function.
• Added hooks support (backported from rlua 0.17).
• New AnyUserData::has_metamethod() function.
• LuaJIT 2.0.5 (the latest stable) support.
• Various bug fixes and improvements.