Move StaticUserData* implementation from `lua` module to the new `userdata_impl`
This commit is contained in:
parent
37cddc6b1c
commit
405cff5d49
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@ -96,6 +96,7 @@ mod table;
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mod thread;
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mod types;
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mod userdata;
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mod userdata_impl;
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mod util;
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mod value;
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571
src/lua.rs
571
src/lua.rs
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@ -7,7 +7,7 @@ use std::fmt;
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use std::marker::PhantomData;
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use std::os::raw::{c_char, c_int, c_void};
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use std::panic::{catch_unwind, resume_unwind, AssertUnwindSafe, Location};
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use std::sync::{Arc, Mutex, RwLock};
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use std::sync::{Arc, Mutex};
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use std::{mem, ptr, str};
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use rustc_hash::FxHashMap;
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@ -26,9 +26,8 @@ use crate::types::{
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Callback, CallbackUpvalue, DestructedUserdataMT, Integer, LightUserData, LuaRef, MaybeSend,
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Number, RegistryKey,
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};
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use crate::userdata::{
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AnyUserData, MetaMethod, UserData, UserDataCell, UserDataFields, UserDataMethods,
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};
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use crate::userdata::{AnyUserData, UserData, UserDataCell};
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use crate::userdata_impl::{StaticUserDataFields, StaticUserDataMethods};
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use crate::util::{
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self, assert_stack, callback_error, check_stack, get_destructed_userdata_metatable,
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get_gc_metatable, get_gc_userdata, get_main_state, get_userdata, init_error_registry,
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@ -48,9 +47,6 @@ use {
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#[cfg(not(feature = "luau"))]
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use crate::{hook::HookTriggers, types::HookCallback};
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#[cfg(not(feature = "send"))]
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use std::rc::Rc;
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#[cfg(feature = "async")]
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use {
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crate::types::{AsyncCallback, AsyncCallbackUpvalue, AsyncPollUpvalue},
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@ -2133,7 +2129,7 @@ impl Lua {
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f(ref_thread)
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}
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pub(crate) unsafe fn push_userdata_metatable<T: 'static + UserData>(&self) -> Result<()> {
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unsafe fn push_userdata_metatable<T: 'static + UserData>(&self) -> Result<()> {
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let extra = &mut *self.extra.get();
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let type_id = TypeId::of::<T>();
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@ -2272,16 +2268,6 @@ impl Lua {
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}
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}
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#[inline]
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unsafe fn get_userdata_ref<T>(&self) -> Result<Ref<T>> {
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(*get_userdata::<UserDataCell<T>>(self.state, -1)).try_borrow()
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}
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#[inline]
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unsafe fn get_userdata_mut<T>(&self) -> Result<RefMut<T>> {
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(*get_userdata::<UserDataCell<T>>(self.state, -1)).try_borrow_mut()
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}
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// Creates a Function out of a Callback containing a 'static Fn. This is safe ONLY because the
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// Fn is 'static, otherwise it could capture 'callback arguments improperly. Without ATCs, we
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// cannot easily deal with the "correct" callback type of:
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@ -2980,552 +2966,3 @@ unsafe fn ref_stack_pop(extra: &mut ExtraData) -> c_int {
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extra.ref_stack_top += 1;
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extra.ref_stack_top
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}
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struct StaticUserDataMethods<'lua, T: 'static + UserData> {
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methods: Vec<(Vec<u8>, Callback<'lua, 'static>)>,
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#[cfg(feature = "async")]
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async_methods: Vec<(Vec<u8>, AsyncCallback<'lua, 'static>)>,
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meta_methods: Vec<(MetaMethod, Callback<'lua, 'static>)>,
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#[cfg(feature = "async")]
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async_meta_methods: Vec<(MetaMethod, AsyncCallback<'lua, 'static>)>,
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_type: PhantomData<T>,
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}
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impl<'lua, T: 'static + UserData> Default for StaticUserDataMethods<'lua, T> {
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fn default() -> StaticUserDataMethods<'lua, T> {
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StaticUserDataMethods {
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methods: Vec::new(),
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#[cfg(feature = "async")]
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async_methods: Vec::new(),
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meta_methods: Vec::new(),
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#[cfg(feature = "async")]
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async_meta_methods: Vec::new(),
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_type: PhantomData,
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}
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}
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}
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impl<'lua, T: 'static + UserData> UserDataMethods<'lua, T> for StaticUserDataMethods<'lua, T> {
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fn add_method<S, A, R, M>(&mut self, name: &S, method: M)
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where
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S: AsRef<[u8]> + ?Sized,
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A: FromLuaMulti<'lua>,
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R: ToLuaMulti<'lua>,
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M: 'static + MaybeSend + Fn(&'lua Lua, &T, A) -> Result<R>,
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{
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self.methods
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.push((name.as_ref().to_vec(), Self::box_method(method)));
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}
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fn add_method_mut<S, A, R, M>(&mut self, name: &S, method: M)
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where
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S: AsRef<[u8]> + ?Sized,
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A: FromLuaMulti<'lua>,
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R: ToLuaMulti<'lua>,
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M: 'static + MaybeSend + FnMut(&'lua Lua, &mut T, A) -> Result<R>,
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{
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self.methods
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.push((name.as_ref().to_vec(), Self::box_method_mut(method)));
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}
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#[cfg(feature = "async")]
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fn add_async_method<S, A, R, M, MR>(&mut self, name: &S, method: M)
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where
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T: Clone,
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S: AsRef<[u8]> + ?Sized,
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A: FromLuaMulti<'lua>,
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R: ToLuaMulti<'lua>,
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M: 'static + MaybeSend + Fn(&'lua Lua, T, A) -> MR,
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MR: 'lua + Future<Output = Result<R>>,
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{
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self.async_methods
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.push((name.as_ref().to_vec(), Self::box_async_method(method)));
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}
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fn add_function<S, A, R, F>(&mut self, name: &S, function: F)
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where
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S: AsRef<[u8]> + ?Sized,
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A: FromLuaMulti<'lua>,
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R: ToLuaMulti<'lua>,
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F: 'static + MaybeSend + Fn(&'lua Lua, A) -> Result<R>,
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{
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self.methods
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.push((name.as_ref().to_vec(), Self::box_function(function)));
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}
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fn add_function_mut<S, A, R, F>(&mut self, name: &S, function: F)
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where
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S: AsRef<[u8]> + ?Sized,
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A: FromLuaMulti<'lua>,
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R: ToLuaMulti<'lua>,
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F: 'static + MaybeSend + FnMut(&'lua Lua, A) -> Result<R>,
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{
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self.methods
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.push((name.as_ref().to_vec(), Self::box_function_mut(function)));
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}
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#[cfg(feature = "async")]
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fn add_async_function<S, A, R, F, FR>(&mut self, name: &S, function: F)
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where
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S: AsRef<[u8]> + ?Sized,
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A: FromLuaMulti<'lua>,
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R: ToLuaMulti<'lua>,
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F: 'static + MaybeSend + Fn(&'lua Lua, A) -> FR,
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FR: 'lua + Future<Output = Result<R>>,
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{
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self.async_methods
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.push((name.as_ref().to_vec(), Self::box_async_function(function)));
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}
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fn add_meta_method<S, A, R, M>(&mut self, meta: S, method: M)
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where
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S: Into<MetaMethod>,
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A: FromLuaMulti<'lua>,
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R: ToLuaMulti<'lua>,
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M: 'static + MaybeSend + Fn(&'lua Lua, &T, A) -> Result<R>,
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{
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self.meta_methods
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.push((meta.into(), Self::box_method(method)));
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}
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fn add_meta_method_mut<S, A, R, M>(&mut self, meta: S, method: M)
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where
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S: Into<MetaMethod>,
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A: FromLuaMulti<'lua>,
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R: ToLuaMulti<'lua>,
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M: 'static + MaybeSend + FnMut(&'lua Lua, &mut T, A) -> Result<R>,
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{
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self.meta_methods
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.push((meta.into(), Self::box_method_mut(method)));
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}
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#[cfg(all(feature = "async", not(any(feature = "lua51", feature = "luau"))))]
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fn add_async_meta_method<S, A, R, M, MR>(&mut self, meta: S, method: M)
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where
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T: Clone,
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S: Into<MetaMethod>,
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A: FromLuaMulti<'lua>,
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R: ToLuaMulti<'lua>,
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M: 'static + MaybeSend + Fn(&'lua Lua, T, A) -> MR,
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MR: 'lua + Future<Output = Result<R>>,
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{
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self.async_meta_methods
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.push((meta.into(), Self::box_async_method(method)));
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}
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fn add_meta_function<S, A, R, F>(&mut self, meta: S, function: F)
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where
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S: Into<MetaMethod>,
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A: FromLuaMulti<'lua>,
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R: ToLuaMulti<'lua>,
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F: 'static + MaybeSend + Fn(&'lua Lua, A) -> Result<R>,
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{
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self.meta_methods
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.push((meta.into(), Self::box_function(function)));
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}
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fn add_meta_function_mut<S, A, R, F>(&mut self, meta: S, function: F)
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where
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S: Into<MetaMethod>,
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A: FromLuaMulti<'lua>,
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R: ToLuaMulti<'lua>,
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F: 'static + MaybeSend + FnMut(&'lua Lua, A) -> Result<R>,
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{
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self.meta_methods
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.push((meta.into(), Self::box_function_mut(function)));
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}
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#[cfg(all(feature = "async", not(any(feature = "lua51", feature = "luau"))))]
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fn add_async_meta_function<S, A, R, F, FR>(&mut self, meta: S, function: F)
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where
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S: Into<MetaMethod>,
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A: FromLuaMulti<'lua>,
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R: ToLuaMulti<'lua>,
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F: 'static + MaybeSend + Fn(&'lua Lua, A) -> FR,
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FR: 'lua + Future<Output = Result<R>>,
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{
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self.async_meta_methods
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.push((meta.into(), Self::box_async_function(function)));
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}
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// Below are internal methods used in generated code
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fn add_callback(&mut self, name: Vec<u8>, callback: Callback<'lua, 'static>) {
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self.methods.push((name, callback));
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}
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#[cfg(feature = "async")]
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fn add_async_callback(&mut self, name: Vec<u8>, callback: AsyncCallback<'lua, 'static>) {
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self.async_methods.push((name, callback));
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}
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fn add_meta_callback(&mut self, meta: MetaMethod, callback: Callback<'lua, 'static>) {
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self.meta_methods.push((meta, callback));
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}
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#[cfg(feature = "async")]
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fn add_async_meta_callback(
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&mut self,
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meta: MetaMethod,
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callback: AsyncCallback<'lua, 'static>,
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) {
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self.async_meta_methods.push((meta, callback))
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}
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}
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impl<'lua, T: 'static + UserData> StaticUserDataMethods<'lua, T> {
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fn box_method<A, R, M>(method: M) -> Callback<'lua, 'static>
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where
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A: FromLuaMulti<'lua>,
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R: ToLuaMulti<'lua>,
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M: 'static + MaybeSend + Fn(&'lua Lua, &T, A) -> Result<R>,
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{
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Box::new(move |lua, mut args| {
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if let Some(front) = args.pop_front() {
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let userdata = AnyUserData::from_lua(front, lua)?;
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unsafe {
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let _sg = StackGuard::new(lua.state);
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check_stack(lua.state, 2)?;
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let type_id = lua.push_userdata_ref(&userdata.0)?;
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match type_id {
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Some(id) if id == TypeId::of::<T>() => {
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let ud = lua.get_userdata_ref::<T>()?;
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method(lua, &ud, A::from_lua_multi(args, lua)?)?.to_lua_multi(lua)
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}
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#[cfg(not(feature = "send"))]
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Some(id) if id == TypeId::of::<Rc<RefCell<T>>>() => {
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let ud = lua.get_userdata_ref::<Rc<RefCell<T>>>()?;
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let ud = ud.try_borrow().map_err(|_| Error::UserDataBorrowError)?;
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method(lua, &ud, A::from_lua_multi(args, lua)?)?.to_lua_multi(lua)
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}
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Some(id) if id == TypeId::of::<Arc<Mutex<T>>>() => {
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let ud = lua.get_userdata_ref::<Arc<Mutex<T>>>()?;
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let ud = ud.try_lock().map_err(|_| Error::UserDataBorrowError)?;
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method(lua, &ud, A::from_lua_multi(args, lua)?)?.to_lua_multi(lua)
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}
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Some(id) if id == TypeId::of::<Arc<RwLock<T>>>() => {
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let ud = lua.get_userdata_ref::<Arc<RwLock<T>>>()?;
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let ud = ud.try_read().map_err(|_| Error::UserDataBorrowError)?;
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method(lua, &ud, A::from_lua_multi(args, lua)?)?.to_lua_multi(lua)
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}
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_ => Err(Error::UserDataTypeMismatch),
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}
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}
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} else {
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Err(Error::FromLuaConversionError {
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from: "missing argument",
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to: "userdata",
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message: None,
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})
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}
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})
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}
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fn box_method_mut<A, R, M>(method: M) -> Callback<'lua, 'static>
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where
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A: FromLuaMulti<'lua>,
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R: ToLuaMulti<'lua>,
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M: 'static + MaybeSend + FnMut(&'lua Lua, &mut T, A) -> Result<R>,
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{
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let method = RefCell::new(method);
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Box::new(move |lua, mut args| {
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if let Some(front) = args.pop_front() {
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let userdata = AnyUserData::from_lua(front, lua)?;
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let mut method = method
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.try_borrow_mut()
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.map_err(|_| Error::RecursiveMutCallback)?;
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unsafe {
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let _sg = StackGuard::new(lua.state);
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check_stack(lua.state, 2)?;
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let type_id = lua.push_userdata_ref(&userdata.0)?;
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match type_id {
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Some(id) if id == TypeId::of::<T>() => {
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let mut ud = lua.get_userdata_mut::<T>()?;
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method(lua, &mut ud, A::from_lua_multi(args, lua)?)?.to_lua_multi(lua)
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}
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#[cfg(not(feature = "send"))]
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Some(id) if id == TypeId::of::<Rc<RefCell<T>>>() => {
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let ud = lua.get_userdata_mut::<Rc<RefCell<T>>>()?;
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let mut ud = ud
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.try_borrow_mut()
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.map_err(|_| Error::UserDataBorrowMutError)?;
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method(lua, &mut ud, A::from_lua_multi(args, lua)?)?.to_lua_multi(lua)
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}
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Some(id) if id == TypeId::of::<Arc<Mutex<T>>>() => {
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let ud = lua.get_userdata_mut::<Arc<Mutex<T>>>()?;
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let mut ud =
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ud.try_lock().map_err(|_| Error::UserDataBorrowMutError)?;
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method(lua, &mut ud, A::from_lua_multi(args, lua)?)?.to_lua_multi(lua)
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}
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Some(id) if id == TypeId::of::<Arc<RwLock<T>>>() => {
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let ud = lua.get_userdata_mut::<Arc<RwLock<T>>>()?;
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let mut ud =
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ud.try_write().map_err(|_| Error::UserDataBorrowMutError)?;
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method(lua, &mut ud, A::from_lua_multi(args, lua)?)?.to_lua_multi(lua)
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}
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_ => Err(Error::UserDataTypeMismatch),
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}
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}
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} else {
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Err(Error::FromLuaConversionError {
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from: "missing argument",
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to: "userdata",
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message: None,
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})
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}
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})
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}
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#[cfg(feature = "async")]
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fn box_async_method<A, R, M, MR>(method: M) -> AsyncCallback<'lua, 'static>
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where
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T: Clone,
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A: FromLuaMulti<'lua>,
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R: ToLuaMulti<'lua>,
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M: 'static + MaybeSend + Fn(&'lua Lua, T, A) -> MR,
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MR: 'lua + Future<Output = Result<R>>,
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{
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Box::new(move |lua, mut args| {
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let fut_res = || {
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if let Some(front) = args.pop_front() {
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let userdata = AnyUserData::from_lua(front, lua)?;
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unsafe {
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let _sg = StackGuard::new(lua.state);
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check_stack(lua.state, 2)?;
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let type_id = lua.push_userdata_ref(&userdata.0)?;
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match type_id {
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Some(id) if id == TypeId::of::<T>() => {
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let ud = lua.get_userdata_ref::<T>()?;
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Ok(method(lua, ud.clone(), A::from_lua_multi(args, lua)?))
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}
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#[cfg(not(feature = "send"))]
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Some(id) if id == TypeId::of::<Rc<RefCell<T>>>() => {
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let ud = lua.get_userdata_ref::<Rc<RefCell<T>>>()?;
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let ud = ud.try_borrow().map_err(|_| Error::UserDataBorrowError)?;
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Ok(method(lua, ud.clone(), A::from_lua_multi(args, lua)?))
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}
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Some(id) if id == TypeId::of::<Arc<Mutex<T>>>() => {
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let ud = lua.get_userdata_ref::<Arc<Mutex<T>>>()?;
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let ud = ud.try_lock().map_err(|_| Error::UserDataBorrowError)?;
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Ok(method(lua, ud.clone(), A::from_lua_multi(args, lua)?))
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}
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Some(id) if id == TypeId::of::<Arc<RwLock<T>>>() => {
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let ud = lua.get_userdata_ref::<Arc<RwLock<T>>>()?;
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let ud = ud.try_read().map_err(|_| Error::UserDataBorrowError)?;
|
||||
Ok(method(lua, ud.clone(), A::from_lua_multi(args, lua)?))
|
||||
}
|
||||
_ => Err(Error::UserDataTypeMismatch),
|
||||
}
|
||||
}
|
||||
} else {
|
||||
Err(Error::FromLuaConversionError {
|
||||
from: "missing argument",
|
||||
to: "userdata",
|
||||
message: None,
|
||||
})
|
||||
}
|
||||
};
|
||||
match fut_res() {
|
||||
Ok(fut) => Box::pin(fut.and_then(move |ret| future::ready(ret.to_lua_multi(lua)))),
|
||||
Err(e) => Box::pin(future::err(e)),
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
fn box_function<A, R, F>(function: F) -> Callback<'lua, 'static>
|
||||
where
|
||||
A: FromLuaMulti<'lua>,
|
||||
R: ToLuaMulti<'lua>,
|
||||
F: 'static + MaybeSend + Fn(&'lua Lua, A) -> Result<R>,
|
||||
{
|
||||
Box::new(move |lua, args| function(lua, A::from_lua_multi(args, lua)?)?.to_lua_multi(lua))
|
||||
}
|
||||
|
||||
fn box_function_mut<A, R, F>(function: F) -> Callback<'lua, 'static>
|
||||
where
|
||||
A: FromLuaMulti<'lua>,
|
||||
R: ToLuaMulti<'lua>,
|
||||
F: 'static + MaybeSend + FnMut(&'lua Lua, A) -> Result<R>,
|
||||
{
|
||||
let function = RefCell::new(function);
|
||||
Box::new(move |lua, args| {
|
||||
let function = &mut *function
|
||||
.try_borrow_mut()
|
||||
.map_err(|_| Error::RecursiveMutCallback)?;
|
||||
function(lua, A::from_lua_multi(args, lua)?)?.to_lua_multi(lua)
|
||||
})
|
||||
}
|
||||
|
||||
#[cfg(feature = "async")]
|
||||
fn box_async_function<A, R, F, FR>(function: F) -> AsyncCallback<'lua, 'static>
|
||||
where
|
||||
A: FromLuaMulti<'lua>,
|
||||
R: ToLuaMulti<'lua>,
|
||||
F: 'static + MaybeSend + Fn(&'lua Lua, A) -> FR,
|
||||
FR: 'lua + Future<Output = Result<R>>,
|
||||
{
|
||||
Box::new(move |lua, args| {
|
||||
let args = match A::from_lua_multi(args, lua) {
|
||||
Ok(args) => args,
|
||||
Err(e) => return Box::pin(future::err(e)),
|
||||
};
|
||||
Box::pin(function(lua, args).and_then(move |ret| future::ready(ret.to_lua_multi(lua))))
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
struct StaticUserDataFields<'lua, T: 'static + UserData> {
|
||||
field_getters: Vec<(Vec<u8>, Callback<'lua, 'static>)>,
|
||||
field_setters: Vec<(Vec<u8>, Callback<'lua, 'static>)>,
|
||||
#[allow(clippy::type_complexity)]
|
||||
meta_fields: Vec<(
|
||||
MetaMethod,
|
||||
Box<dyn Fn(&'lua Lua) -> Result<Value<'lua>> + 'static>,
|
||||
)>,
|
||||
_type: PhantomData<T>,
|
||||
}
|
||||
|
||||
impl<'lua, T: 'static + UserData> Default for StaticUserDataFields<'lua, T> {
|
||||
fn default() -> StaticUserDataFields<'lua, T> {
|
||||
StaticUserDataFields {
|
||||
field_getters: Vec::new(),
|
||||
field_setters: Vec::new(),
|
||||
meta_fields: Vec::new(),
|
||||
_type: PhantomData,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<'lua, T: 'static + UserData> UserDataFields<'lua, T> for StaticUserDataFields<'lua, T> {
|
||||
fn add_field_method_get<S, R, M>(&mut self, name: &S, method: M)
|
||||
where
|
||||
S: AsRef<[u8]> + ?Sized,
|
||||
R: ToLua<'lua>,
|
||||
M: 'static + MaybeSend + Fn(&'lua Lua, &T) -> Result<R>,
|
||||
{
|
||||
self.field_getters.push((
|
||||
name.as_ref().to_vec(),
|
||||
StaticUserDataMethods::box_method(move |lua, data, ()| method(lua, data)),
|
||||
));
|
||||
}
|
||||
|
||||
fn add_field_method_set<S, A, M>(&mut self, name: &S, method: M)
|
||||
where
|
||||
S: AsRef<[u8]> + ?Sized,
|
||||
A: FromLua<'lua>,
|
||||
M: 'static + MaybeSend + FnMut(&'lua Lua, &mut T, A) -> Result<()>,
|
||||
{
|
||||
self.field_setters.push((
|
||||
name.as_ref().to_vec(),
|
||||
StaticUserDataMethods::box_method_mut(method),
|
||||
));
|
||||
}
|
||||
|
||||
fn add_field_function_get<S, R, F>(&mut self, name: &S, function: F)
|
||||
where
|
||||
S: AsRef<[u8]> + ?Sized,
|
||||
R: ToLua<'lua>,
|
||||
F: 'static + MaybeSend + Fn(&'lua Lua, AnyUserData<'lua>) -> Result<R>,
|
||||
{
|
||||
self.field_getters.push((
|
||||
name.as_ref().to_vec(),
|
||||
StaticUserDataMethods::<T>::box_function(function),
|
||||
));
|
||||
}
|
||||
|
||||
fn add_field_function_set<S, A, F>(&mut self, name: &S, mut function: F)
|
||||
where
|
||||
S: AsRef<[u8]> + ?Sized,
|
||||
A: FromLua<'lua>,
|
||||
F: 'static + MaybeSend + FnMut(&'lua Lua, AnyUserData<'lua>, A) -> Result<()>,
|
||||
{
|
||||
self.field_setters.push((
|
||||
name.as_ref().to_vec(),
|
||||
StaticUserDataMethods::<T>::box_function_mut(move |lua, (data, val)| {
|
||||
function(lua, data, val)
|
||||
}),
|
||||
));
|
||||
}
|
||||
|
||||
fn add_meta_field_with<S, R, F>(&mut self, meta: S, f: F)
|
||||
where
|
||||
S: Into<MetaMethod>,
|
||||
R: ToLua<'lua>,
|
||||
F: 'static + MaybeSend + Fn(&'lua Lua) -> Result<R>,
|
||||
{
|
||||
let meta = meta.into();
|
||||
self.meta_fields.push((
|
||||
meta.clone(),
|
||||
Box::new(move |lua| {
|
||||
let value = f(lua)?.to_lua(lua)?;
|
||||
if meta == MetaMethod::Index || meta == MetaMethod::NewIndex {
|
||||
match value {
|
||||
Value::Nil | Value::Table(_) | Value::Function(_) => {}
|
||||
_ => {
|
||||
return Err(Error::MetaMethodTypeError {
|
||||
method: meta.to_string(),
|
||||
type_name: value.type_name(),
|
||||
message: Some("expected nil, table or function".to_string()),
|
||||
})
|
||||
}
|
||||
}
|
||||
}
|
||||
Ok(value)
|
||||
}),
|
||||
));
|
||||
}
|
||||
|
||||
// Below are internal methods
|
||||
|
||||
fn add_field_getter(&mut self, name: Vec<u8>, callback: Callback<'lua, 'static>) {
|
||||
self.field_getters.push((name, callback));
|
||||
}
|
||||
|
||||
fn add_field_setter(&mut self, name: Vec<u8>, callback: Callback<'lua, 'static>) {
|
||||
self.field_setters.push((name, callback));
|
||||
}
|
||||
}
|
||||
|
||||
macro_rules! lua_userdata_impl {
|
||||
($type:ty) => {
|
||||
impl<T: 'static + UserData> UserData for $type {
|
||||
fn add_fields<'lua, F: UserDataFields<'lua, Self>>(fields: &mut F) {
|
||||
let mut orig_fields = StaticUserDataFields::default();
|
||||
T::add_fields(&mut orig_fields);
|
||||
for (name, callback) in orig_fields.field_getters {
|
||||
fields.add_field_getter(name, callback);
|
||||
}
|
||||
for (name, callback) in orig_fields.field_setters {
|
||||
fields.add_field_setter(name, callback);
|
||||
}
|
||||
}
|
||||
|
||||
fn add_methods<'lua, M: UserDataMethods<'lua, Self>>(methods: &mut M) {
|
||||
let mut orig_methods = StaticUserDataMethods::default();
|
||||
T::add_methods(&mut orig_methods);
|
||||
for (name, callback) in orig_methods.methods {
|
||||
methods.add_callback(name, callback);
|
||||
}
|
||||
#[cfg(feature = "async")]
|
||||
for (name, callback) in orig_methods.async_methods {
|
||||
methods.add_async_callback(name, callback);
|
||||
}
|
||||
for (meta, callback) in orig_methods.meta_methods {
|
||||
methods.add_meta_callback(meta, callback);
|
||||
}
|
||||
#[cfg(feature = "async")]
|
||||
for (meta, callback) in orig_methods.async_meta_methods {
|
||||
methods.add_async_meta_callback(meta, callback);
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
#[cfg(not(feature = "send"))]
|
||||
lua_userdata_impl!(Rc<RefCell<T>>);
|
||||
lua_userdata_impl!(Arc<Mutex<T>>);
|
||||
lua_userdata_impl!(Arc<RwLock<T>>);
|
||||
|
|
|
@ -0,0 +1,583 @@
|
|||
use std::any::TypeId;
|
||||
use std::cell::{Ref, RefCell, RefMut};
|
||||
use std::marker::PhantomData;
|
||||
use std::sync::{Arc, Mutex, RwLock};
|
||||
|
||||
use crate::error::{Error, Result};
|
||||
use crate::ffi;
|
||||
use crate::lua::Lua;
|
||||
use crate::types::{Callback, MaybeSend};
|
||||
use crate::userdata::{
|
||||
AnyUserData, MetaMethod, UserData, UserDataCell, UserDataFields, UserDataMethods,
|
||||
};
|
||||
use crate::util::{check_stack, get_userdata, StackGuard};
|
||||
use crate::value::{FromLua, FromLuaMulti, ToLua, ToLuaMulti, Value};
|
||||
|
||||
#[cfg(not(feature = "send"))]
|
||||
use std::rc::Rc;
|
||||
|
||||
#[cfg(feature = "async")]
|
||||
use {
|
||||
crate::types::AsyncCallback,
|
||||
futures_core::future::Future,
|
||||
futures_util::future::{self, TryFutureExt},
|
||||
};
|
||||
|
||||
pub(crate) struct StaticUserDataMethods<'lua, T: 'static + UserData> {
|
||||
pub(crate) methods: Vec<(Vec<u8>, Callback<'lua, 'static>)>,
|
||||
#[cfg(feature = "async")]
|
||||
pub(crate) async_methods: Vec<(Vec<u8>, AsyncCallback<'lua, 'static>)>,
|
||||
pub(crate) meta_methods: Vec<(MetaMethod, Callback<'lua, 'static>)>,
|
||||
#[cfg(feature = "async")]
|
||||
pub(crate) async_meta_methods: Vec<(MetaMethod, AsyncCallback<'lua, 'static>)>,
|
||||
_type: PhantomData<T>,
|
||||
}
|
||||
|
||||
impl<'lua, T: 'static + UserData> Default for StaticUserDataMethods<'lua, T> {
|
||||
fn default() -> StaticUserDataMethods<'lua, T> {
|
||||
StaticUserDataMethods {
|
||||
methods: Vec::new(),
|
||||
#[cfg(feature = "async")]
|
||||
async_methods: Vec::new(),
|
||||
meta_methods: Vec::new(),
|
||||
#[cfg(feature = "async")]
|
||||
async_meta_methods: Vec::new(),
|
||||
_type: PhantomData,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<'lua, T: 'static + UserData> UserDataMethods<'lua, T> for StaticUserDataMethods<'lua, T> {
|
||||
fn add_method<S, A, R, M>(&mut self, name: &S, method: M)
|
||||
where
|
||||
S: AsRef<[u8]> + ?Sized,
|
||||
A: FromLuaMulti<'lua>,
|
||||
R: ToLuaMulti<'lua>,
|
||||
M: 'static + MaybeSend + Fn(&'lua Lua, &T, A) -> Result<R>,
|
||||
{
|
||||
self.methods
|
||||
.push((name.as_ref().to_vec(), Self::box_method(method)));
|
||||
}
|
||||
|
||||
fn add_method_mut<S, A, R, M>(&mut self, name: &S, method: M)
|
||||
where
|
||||
S: AsRef<[u8]> + ?Sized,
|
||||
A: FromLuaMulti<'lua>,
|
||||
R: ToLuaMulti<'lua>,
|
||||
M: 'static + MaybeSend + FnMut(&'lua Lua, &mut T, A) -> Result<R>,
|
||||
{
|
||||
self.methods
|
||||
.push((name.as_ref().to_vec(), Self::box_method_mut(method)));
|
||||
}
|
||||
|
||||
#[cfg(feature = "async")]
|
||||
fn add_async_method<S, A, R, M, MR>(&mut self, name: &S, method: M)
|
||||
where
|
||||
T: Clone,
|
||||
S: AsRef<[u8]> + ?Sized,
|
||||
A: FromLuaMulti<'lua>,
|
||||
R: ToLuaMulti<'lua>,
|
||||
M: 'static + MaybeSend + Fn(&'lua Lua, T, A) -> MR,
|
||||
MR: 'lua + Future<Output = Result<R>>,
|
||||
{
|
||||
self.async_methods
|
||||
.push((name.as_ref().to_vec(), Self::box_async_method(method)));
|
||||
}
|
||||
|
||||
fn add_function<S, A, R, F>(&mut self, name: &S, function: F)
|
||||
where
|
||||
S: AsRef<[u8]> + ?Sized,
|
||||
A: FromLuaMulti<'lua>,
|
||||
R: ToLuaMulti<'lua>,
|
||||
F: 'static + MaybeSend + Fn(&'lua Lua, A) -> Result<R>,
|
||||
{
|
||||
self.methods
|
||||
.push((name.as_ref().to_vec(), Self::box_function(function)));
|
||||
}
|
||||
|
||||
fn add_function_mut<S, A, R, F>(&mut self, name: &S, function: F)
|
||||
where
|
||||
S: AsRef<[u8]> + ?Sized,
|
||||
A: FromLuaMulti<'lua>,
|
||||
R: ToLuaMulti<'lua>,
|
||||
F: 'static + MaybeSend + FnMut(&'lua Lua, A) -> Result<R>,
|
||||
{
|
||||
self.methods
|
||||
.push((name.as_ref().to_vec(), Self::box_function_mut(function)));
|
||||
}
|
||||
|
||||
#[cfg(feature = "async")]
|
||||
fn add_async_function<S, A, R, F, FR>(&mut self, name: &S, function: F)
|
||||
where
|
||||
S: AsRef<[u8]> + ?Sized,
|
||||
A: FromLuaMulti<'lua>,
|
||||
R: ToLuaMulti<'lua>,
|
||||
F: 'static + MaybeSend + Fn(&'lua Lua, A) -> FR,
|
||||
FR: 'lua + Future<Output = Result<R>>,
|
||||
{
|
||||
self.async_methods
|
||||
.push((name.as_ref().to_vec(), Self::box_async_function(function)));
|
||||
}
|
||||
|
||||
fn add_meta_method<S, A, R, M>(&mut self, meta: S, method: M)
|
||||
where
|
||||
S: Into<MetaMethod>,
|
||||
A: FromLuaMulti<'lua>,
|
||||
R: ToLuaMulti<'lua>,
|
||||
M: 'static + MaybeSend + Fn(&'lua Lua, &T, A) -> Result<R>,
|
||||
{
|
||||
self.meta_methods
|
||||
.push((meta.into(), Self::box_method(method)));
|
||||
}
|
||||
|
||||
fn add_meta_method_mut<S, A, R, M>(&mut self, meta: S, method: M)
|
||||
where
|
||||
S: Into<MetaMethod>,
|
||||
A: FromLuaMulti<'lua>,
|
||||
R: ToLuaMulti<'lua>,
|
||||
M: 'static + MaybeSend + FnMut(&'lua Lua, &mut T, A) -> Result<R>,
|
||||
{
|
||||
self.meta_methods
|
||||
.push((meta.into(), Self::box_method_mut(method)));
|
||||
}
|
||||
|
||||
#[cfg(all(feature = "async", not(any(feature = "lua51", feature = "luau"))))]
|
||||
fn add_async_meta_method<S, A, R, M, MR>(&mut self, meta: S, method: M)
|
||||
where
|
||||
T: Clone,
|
||||
S: Into<MetaMethod>,
|
||||
A: FromLuaMulti<'lua>,
|
||||
R: ToLuaMulti<'lua>,
|
||||
M: 'static + MaybeSend + Fn(&'lua Lua, T, A) -> MR,
|
||||
MR: 'lua + Future<Output = Result<R>>,
|
||||
{
|
||||
self.async_meta_methods
|
||||
.push((meta.into(), Self::box_async_method(method)));
|
||||
}
|
||||
|
||||
fn add_meta_function<S, A, R, F>(&mut self, meta: S, function: F)
|
||||
where
|
||||
S: Into<MetaMethod>,
|
||||
A: FromLuaMulti<'lua>,
|
||||
R: ToLuaMulti<'lua>,
|
||||
F: 'static + MaybeSend + Fn(&'lua Lua, A) -> Result<R>,
|
||||
{
|
||||
self.meta_methods
|
||||
.push((meta.into(), Self::box_function(function)));
|
||||
}
|
||||
|
||||
fn add_meta_function_mut<S, A, R, F>(&mut self, meta: S, function: F)
|
||||
where
|
||||
S: Into<MetaMethod>,
|
||||
A: FromLuaMulti<'lua>,
|
||||
R: ToLuaMulti<'lua>,
|
||||
F: 'static + MaybeSend + FnMut(&'lua Lua, A) -> Result<R>,
|
||||
{
|
||||
self.meta_methods
|
||||
.push((meta.into(), Self::box_function_mut(function)));
|
||||
}
|
||||
|
||||
#[cfg(all(feature = "async", not(any(feature = "lua51", feature = "luau"))))]
|
||||
fn add_async_meta_function<S, A, R, F, FR>(&mut self, meta: S, function: F)
|
||||
where
|
||||
S: Into<MetaMethod>,
|
||||
A: FromLuaMulti<'lua>,
|
||||
R: ToLuaMulti<'lua>,
|
||||
F: 'static + MaybeSend + Fn(&'lua Lua, A) -> FR,
|
||||
FR: 'lua + Future<Output = Result<R>>,
|
||||
{
|
||||
self.async_meta_methods
|
||||
.push((meta.into(), Self::box_async_function(function)));
|
||||
}
|
||||
|
||||
// Below are internal methods used in generated code
|
||||
|
||||
fn add_callback(&mut self, name: Vec<u8>, callback: Callback<'lua, 'static>) {
|
||||
self.methods.push((name, callback));
|
||||
}
|
||||
|
||||
#[cfg(feature = "async")]
|
||||
fn add_async_callback(&mut self, name: Vec<u8>, callback: AsyncCallback<'lua, 'static>) {
|
||||
self.async_methods.push((name, callback));
|
||||
}
|
||||
|
||||
fn add_meta_callback(&mut self, meta: MetaMethod, callback: Callback<'lua, 'static>) {
|
||||
self.meta_methods.push((meta, callback));
|
||||
}
|
||||
|
||||
#[cfg(feature = "async")]
|
||||
fn add_async_meta_callback(
|
||||
&mut self,
|
||||
meta: MetaMethod,
|
||||
callback: AsyncCallback<'lua, 'static>,
|
||||
) {
|
||||
self.async_meta_methods.push((meta, callback))
|
||||
}
|
||||
}
|
||||
|
||||
impl<'lua, T: 'static + UserData> StaticUserDataMethods<'lua, T> {
|
||||
fn box_method<A, R, M>(method: M) -> Callback<'lua, 'static>
|
||||
where
|
||||
A: FromLuaMulti<'lua>,
|
||||
R: ToLuaMulti<'lua>,
|
||||
M: 'static + MaybeSend + Fn(&'lua Lua, &T, A) -> Result<R>,
|
||||
{
|
||||
Box::new(move |lua, mut args| {
|
||||
if let Some(front) = args.pop_front() {
|
||||
let userdata = AnyUserData::from_lua(front, lua)?;
|
||||
unsafe {
|
||||
let _sg = StackGuard::new(lua.state);
|
||||
check_stack(lua.state, 2)?;
|
||||
|
||||
let type_id = lua.push_userdata_ref(&userdata.0)?;
|
||||
match type_id {
|
||||
Some(id) if id == TypeId::of::<T>() => {
|
||||
let ud = get_userdata_ref::<T>(lua.state)?;
|
||||
method(lua, &ud, A::from_lua_multi(args, lua)?)?.to_lua_multi(lua)
|
||||
}
|
||||
#[cfg(not(feature = "send"))]
|
||||
Some(id) if id == TypeId::of::<Rc<RefCell<T>>>() => {
|
||||
let ud = get_userdata_ref::<Rc<RefCell<T>>>(lua.state)?;
|
||||
let ud = ud.try_borrow().map_err(|_| Error::UserDataBorrowError)?;
|
||||
method(lua, &ud, A::from_lua_multi(args, lua)?)?.to_lua_multi(lua)
|
||||
}
|
||||
Some(id) if id == TypeId::of::<Arc<Mutex<T>>>() => {
|
||||
let ud = get_userdata_ref::<Arc<Mutex<T>>>(lua.state)?;
|
||||
let ud = ud.try_lock().map_err(|_| Error::UserDataBorrowError)?;
|
||||
method(lua, &ud, A::from_lua_multi(args, lua)?)?.to_lua_multi(lua)
|
||||
}
|
||||
Some(id) if id == TypeId::of::<Arc<RwLock<T>>>() => {
|
||||
let ud = get_userdata_ref::<Arc<RwLock<T>>>(lua.state)?;
|
||||
let ud = ud.try_read().map_err(|_| Error::UserDataBorrowError)?;
|
||||
method(lua, &ud, A::from_lua_multi(args, lua)?)?.to_lua_multi(lua)
|
||||
}
|
||||
_ => Err(Error::UserDataTypeMismatch),
|
||||
}
|
||||
}
|
||||
} else {
|
||||
Err(Error::FromLuaConversionError {
|
||||
from: "missing argument",
|
||||
to: "userdata",
|
||||
message: None,
|
||||
})
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
fn box_method_mut<A, R, M>(method: M) -> Callback<'lua, 'static>
|
||||
where
|
||||
A: FromLuaMulti<'lua>,
|
||||
R: ToLuaMulti<'lua>,
|
||||
M: 'static + MaybeSend + FnMut(&'lua Lua, &mut T, A) -> Result<R>,
|
||||
{
|
||||
let method = RefCell::new(method);
|
||||
Box::new(move |lua, mut args| {
|
||||
if let Some(front) = args.pop_front() {
|
||||
let userdata = AnyUserData::from_lua(front, lua)?;
|
||||
let mut method = method
|
||||
.try_borrow_mut()
|
||||
.map_err(|_| Error::RecursiveMutCallback)?;
|
||||
unsafe {
|
||||
let _sg = StackGuard::new(lua.state);
|
||||
check_stack(lua.state, 2)?;
|
||||
|
||||
let type_id = lua.push_userdata_ref(&userdata.0)?;
|
||||
match type_id {
|
||||
Some(id) if id == TypeId::of::<T>() => {
|
||||
let mut ud = get_userdata_mut::<T>(lua.state)?;
|
||||
method(lua, &mut ud, A::from_lua_multi(args, lua)?)?.to_lua_multi(lua)
|
||||
}
|
||||
#[cfg(not(feature = "send"))]
|
||||
Some(id) if id == TypeId::of::<Rc<RefCell<T>>>() => {
|
||||
let ud = get_userdata_mut::<Rc<RefCell<T>>>(lua.state)?;
|
||||
let mut ud = ud
|
||||
.try_borrow_mut()
|
||||
.map_err(|_| Error::UserDataBorrowMutError)?;
|
||||
method(lua, &mut ud, A::from_lua_multi(args, lua)?)?.to_lua_multi(lua)
|
||||
}
|
||||
Some(id) if id == TypeId::of::<Arc<Mutex<T>>>() => {
|
||||
let ud = get_userdata_mut::<Arc<Mutex<T>>>(lua.state)?;
|
||||
let mut ud =
|
||||
ud.try_lock().map_err(|_| Error::UserDataBorrowMutError)?;
|
||||
method(lua, &mut ud, A::from_lua_multi(args, lua)?)?.to_lua_multi(lua)
|
||||
}
|
||||
Some(id) if id == TypeId::of::<Arc<RwLock<T>>>() => {
|
||||
let ud = get_userdata_mut::<Arc<RwLock<T>>>(lua.state)?;
|
||||
let mut ud =
|
||||
ud.try_write().map_err(|_| Error::UserDataBorrowMutError)?;
|
||||
method(lua, &mut ud, A::from_lua_multi(args, lua)?)?.to_lua_multi(lua)
|
||||
}
|
||||
_ => Err(Error::UserDataTypeMismatch),
|
||||
}
|
||||
}
|
||||
} else {
|
||||
Err(Error::FromLuaConversionError {
|
||||
from: "missing argument",
|
||||
to: "userdata",
|
||||
message: None,
|
||||
})
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
#[cfg(feature = "async")]
|
||||
fn box_async_method<A, R, M, MR>(method: M) -> AsyncCallback<'lua, 'static>
|
||||
where
|
||||
T: Clone,
|
||||
A: FromLuaMulti<'lua>,
|
||||
R: ToLuaMulti<'lua>,
|
||||
M: 'static + MaybeSend + Fn(&'lua Lua, T, A) -> MR,
|
||||
MR: 'lua + Future<Output = Result<R>>,
|
||||
{
|
||||
Box::new(move |lua, mut args| {
|
||||
let fut_res = || {
|
||||
if let Some(front) = args.pop_front() {
|
||||
let userdata = AnyUserData::from_lua(front, lua)?;
|
||||
unsafe {
|
||||
let _sg = StackGuard::new(lua.state);
|
||||
check_stack(lua.state, 2)?;
|
||||
|
||||
let type_id = lua.push_userdata_ref(&userdata.0)?;
|
||||
match type_id {
|
||||
Some(id) if id == TypeId::of::<T>() => {
|
||||
let ud = get_userdata_ref::<T>(lua.state)?;
|
||||
Ok(method(lua, ud.clone(), A::from_lua_multi(args, lua)?))
|
||||
}
|
||||
#[cfg(not(feature = "send"))]
|
||||
Some(id) if id == TypeId::of::<Rc<RefCell<T>>>() => {
|
||||
let ud = get_userdata_ref::<Rc<RefCell<T>>>(lua.state)?;
|
||||
let ud = ud.try_borrow().map_err(|_| Error::UserDataBorrowError)?;
|
||||
Ok(method(lua, ud.clone(), A::from_lua_multi(args, lua)?))
|
||||
}
|
||||
Some(id) if id == TypeId::of::<Arc<Mutex<T>>>() => {
|
||||
let ud = get_userdata_ref::<Arc<Mutex<T>>>(lua.state)?;
|
||||
let ud = ud.try_lock().map_err(|_| Error::UserDataBorrowError)?;
|
||||
Ok(method(lua, ud.clone(), A::from_lua_multi(args, lua)?))
|
||||
}
|
||||
Some(id) if id == TypeId::of::<Arc<RwLock<T>>>() => {
|
||||
let ud = get_userdata_ref::<Arc<RwLock<T>>>(lua.state)?;
|
||||
let ud = ud.try_read().map_err(|_| Error::UserDataBorrowError)?;
|
||||
Ok(method(lua, ud.clone(), A::from_lua_multi(args, lua)?))
|
||||
}
|
||||
_ => Err(Error::UserDataTypeMismatch),
|
||||
}
|
||||
}
|
||||
} else {
|
||||
Err(Error::FromLuaConversionError {
|
||||
from: "missing argument",
|
||||
to: "userdata",
|
||||
message: None,
|
||||
})
|
||||
}
|
||||
};
|
||||
match fut_res() {
|
||||
Ok(fut) => Box::pin(fut.and_then(move |ret| future::ready(ret.to_lua_multi(lua)))),
|
||||
Err(e) => Box::pin(future::err(e)),
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
fn box_function<A, R, F>(function: F) -> Callback<'lua, 'static>
|
||||
where
|
||||
A: FromLuaMulti<'lua>,
|
||||
R: ToLuaMulti<'lua>,
|
||||
F: 'static + MaybeSend + Fn(&'lua Lua, A) -> Result<R>,
|
||||
{
|
||||
Box::new(move |lua, args| function(lua, A::from_lua_multi(args, lua)?)?.to_lua_multi(lua))
|
||||
}
|
||||
|
||||
fn box_function_mut<A, R, F>(function: F) -> Callback<'lua, 'static>
|
||||
where
|
||||
A: FromLuaMulti<'lua>,
|
||||
R: ToLuaMulti<'lua>,
|
||||
F: 'static + MaybeSend + FnMut(&'lua Lua, A) -> Result<R>,
|
||||
{
|
||||
let function = RefCell::new(function);
|
||||
Box::new(move |lua, args| {
|
||||
let function = &mut *function
|
||||
.try_borrow_mut()
|
||||
.map_err(|_| Error::RecursiveMutCallback)?;
|
||||
function(lua, A::from_lua_multi(args, lua)?)?.to_lua_multi(lua)
|
||||
})
|
||||
}
|
||||
|
||||
#[cfg(feature = "async")]
|
||||
fn box_async_function<A, R, F, FR>(function: F) -> AsyncCallback<'lua, 'static>
|
||||
where
|
||||
A: FromLuaMulti<'lua>,
|
||||
R: ToLuaMulti<'lua>,
|
||||
F: 'static + MaybeSend + Fn(&'lua Lua, A) -> FR,
|
||||
FR: 'lua + Future<Output = Result<R>>,
|
||||
{
|
||||
Box::new(move |lua, args| {
|
||||
let args = match A::from_lua_multi(args, lua) {
|
||||
Ok(args) => args,
|
||||
Err(e) => return Box::pin(future::err(e)),
|
||||
};
|
||||
Box::pin(function(lua, args).and_then(move |ret| future::ready(ret.to_lua_multi(lua))))
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
pub(crate) struct StaticUserDataFields<'lua, T: 'static + UserData> {
|
||||
pub(crate) field_getters: Vec<(Vec<u8>, Callback<'lua, 'static>)>,
|
||||
pub(crate) field_setters: Vec<(Vec<u8>, Callback<'lua, 'static>)>,
|
||||
#[allow(clippy::type_complexity)]
|
||||
pub(crate) meta_fields: Vec<(
|
||||
MetaMethod,
|
||||
Box<dyn Fn(&'lua Lua) -> Result<Value<'lua>> + 'static>,
|
||||
)>,
|
||||
_type: PhantomData<T>,
|
||||
}
|
||||
|
||||
impl<'lua, T: 'static + UserData> Default for StaticUserDataFields<'lua, T> {
|
||||
fn default() -> StaticUserDataFields<'lua, T> {
|
||||
StaticUserDataFields {
|
||||
field_getters: Vec::new(),
|
||||
field_setters: Vec::new(),
|
||||
meta_fields: Vec::new(),
|
||||
_type: PhantomData,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<'lua, T: 'static + UserData> UserDataFields<'lua, T> for StaticUserDataFields<'lua, T> {
|
||||
fn add_field_method_get<S, R, M>(&mut self, name: &S, method: M)
|
||||
where
|
||||
S: AsRef<[u8]> + ?Sized,
|
||||
R: ToLua<'lua>,
|
||||
M: 'static + MaybeSend + Fn(&'lua Lua, &T) -> Result<R>,
|
||||
{
|
||||
self.field_getters.push((
|
||||
name.as_ref().to_vec(),
|
||||
StaticUserDataMethods::box_method(move |lua, data, ()| method(lua, data)),
|
||||
));
|
||||
}
|
||||
|
||||
fn add_field_method_set<S, A, M>(&mut self, name: &S, method: M)
|
||||
where
|
||||
S: AsRef<[u8]> + ?Sized,
|
||||
A: FromLua<'lua>,
|
||||
M: 'static + MaybeSend + FnMut(&'lua Lua, &mut T, A) -> Result<()>,
|
||||
{
|
||||
self.field_setters.push((
|
||||
name.as_ref().to_vec(),
|
||||
StaticUserDataMethods::box_method_mut(method),
|
||||
));
|
||||
}
|
||||
|
||||
fn add_field_function_get<S, R, F>(&mut self, name: &S, function: F)
|
||||
where
|
||||
S: AsRef<[u8]> + ?Sized,
|
||||
R: ToLua<'lua>,
|
||||
F: 'static + MaybeSend + Fn(&'lua Lua, AnyUserData<'lua>) -> Result<R>,
|
||||
{
|
||||
self.field_getters.push((
|
||||
name.as_ref().to_vec(),
|
||||
StaticUserDataMethods::<T>::box_function(function),
|
||||
));
|
||||
}
|
||||
|
||||
fn add_field_function_set<S, A, F>(&mut self, name: &S, mut function: F)
|
||||
where
|
||||
S: AsRef<[u8]> + ?Sized,
|
||||
A: FromLua<'lua>,
|
||||
F: 'static + MaybeSend + FnMut(&'lua Lua, AnyUserData<'lua>, A) -> Result<()>,
|
||||
{
|
||||
self.field_setters.push((
|
||||
name.as_ref().to_vec(),
|
||||
StaticUserDataMethods::<T>::box_function_mut(move |lua, (data, val)| {
|
||||
function(lua, data, val)
|
||||
}),
|
||||
));
|
||||
}
|
||||
|
||||
fn add_meta_field_with<S, R, F>(&mut self, meta: S, f: F)
|
||||
where
|
||||
S: Into<MetaMethod>,
|
||||
R: ToLua<'lua>,
|
||||
F: 'static + MaybeSend + Fn(&'lua Lua) -> Result<R>,
|
||||
{
|
||||
let meta = meta.into();
|
||||
self.meta_fields.push((
|
||||
meta.clone(),
|
||||
Box::new(move |lua| {
|
||||
let value = f(lua)?.to_lua(lua)?;
|
||||
if meta == MetaMethod::Index || meta == MetaMethod::NewIndex {
|
||||
match value {
|
||||
Value::Nil | Value::Table(_) | Value::Function(_) => {}
|
||||
_ => {
|
||||
return Err(Error::MetaMethodTypeError {
|
||||
method: meta.to_string(),
|
||||
type_name: value.type_name(),
|
||||
message: Some("expected nil, table or function".to_string()),
|
||||
})
|
||||
}
|
||||
}
|
||||
}
|
||||
Ok(value)
|
||||
}),
|
||||
));
|
||||
}
|
||||
|
||||
// Below are internal methods
|
||||
|
||||
fn add_field_getter(&mut self, name: Vec<u8>, callback: Callback<'lua, 'static>) {
|
||||
self.field_getters.push((name, callback));
|
||||
}
|
||||
|
||||
fn add_field_setter(&mut self, name: Vec<u8>, callback: Callback<'lua, 'static>) {
|
||||
self.field_setters.push((name, callback));
|
||||
}
|
||||
}
|
||||
|
||||
#[inline]
|
||||
unsafe fn get_userdata_ref<'a, T>(state: *mut ffi::lua_State) -> Result<Ref<'a, T>> {
|
||||
(*get_userdata::<UserDataCell<T>>(state, -1)).try_borrow()
|
||||
}
|
||||
|
||||
#[inline]
|
||||
unsafe fn get_userdata_mut<'a, T>(state: *mut ffi::lua_State) -> Result<RefMut<'a, T>> {
|
||||
(*get_userdata::<UserDataCell<T>>(state, -1)).try_borrow_mut()
|
||||
}
|
||||
|
||||
macro_rules! lua_userdata_impl {
|
||||
($type:ty) => {
|
||||
impl<T: 'static + UserData> UserData for $type {
|
||||
fn add_fields<'lua, F: UserDataFields<'lua, Self>>(fields: &mut F) {
|
||||
let mut orig_fields = StaticUserDataFields::default();
|
||||
T::add_fields(&mut orig_fields);
|
||||
for (name, callback) in orig_fields.field_getters {
|
||||
fields.add_field_getter(name, callback);
|
||||
}
|
||||
for (name, callback) in orig_fields.field_setters {
|
||||
fields.add_field_setter(name, callback);
|
||||
}
|
||||
}
|
||||
|
||||
fn add_methods<'lua, M: UserDataMethods<'lua, Self>>(methods: &mut M) {
|
||||
let mut orig_methods = StaticUserDataMethods::default();
|
||||
T::add_methods(&mut orig_methods);
|
||||
for (name, callback) in orig_methods.methods {
|
||||
methods.add_callback(name, callback);
|
||||
}
|
||||
#[cfg(feature = "async")]
|
||||
for (name, callback) in orig_methods.async_methods {
|
||||
methods.add_async_callback(name, callback);
|
||||
}
|
||||
for (meta, callback) in orig_methods.meta_methods {
|
||||
methods.add_meta_callback(meta, callback);
|
||||
}
|
||||
#[cfg(feature = "async")]
|
||||
for (meta, callback) in orig_methods.async_meta_methods {
|
||||
methods.add_async_meta_callback(meta, callback);
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
#[cfg(not(feature = "send"))]
|
||||
lua_userdata_impl!(Rc<RefCell<T>>);
|
||||
lua_userdata_impl!(Arc<Mutex<T>>);
|
||||
lua_userdata_impl!(Arc<RwLock<T>>);
|
Loading…
Reference in New Issue