Implement lua types for usize, make userdata field setter and getters return results
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d32c138e99
26
src/lib.rs
26
src/lib.rs
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@ -107,6 +107,7 @@ impl_as_lua_number!(u8);
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impl_as_lua_number!(u16);
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impl_as_lua_number!(u16);
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impl_as_lua_number!(u32);
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impl_as_lua_number!(u32);
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impl_as_lua_number!(u64);
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impl_as_lua_number!(u64);
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impl_as_lua_number!(usize);
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impl_as_lua_number!(f32);
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impl_as_lua_number!(f32);
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impl_as_lua_number!(f64);
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impl_as_lua_number!(f64);
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@ -141,4 +142,29 @@ impl<'a> PushToLuaStack<'a> for &str {
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Ok(())
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Ok(())
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}
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}
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}
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impl<'a> AsLua<'a> for bool {
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fn as_lua(self, _lua: &'a State) -> crate::Result<Value<'a>> {
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Ok(Value::Boolean(self))
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}
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}
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impl<'a> FromLua<'a> for bool {
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fn from_lua(_lua: &State, val: Value) -> crate::Result<Self> {
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match val {
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Value::Boolean(v) => Ok(v),
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_ => Err(Error::type_mismatch(
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"Boolean",
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&val.type_name(),
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)),
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}
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}
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}
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impl<'a> PushToLuaStack<'a> for bool {
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unsafe fn push_to_lua_stack(&self, state: &'a State) -> crate::Result<()> {
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let v = self.as_lua(state)?;
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v.push_to_lua_stack(state)
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}
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}
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}
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14
src/tests.rs
14
src/tests.rs
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@ -10,10 +10,16 @@ pub struct Vec2 {
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impl Userdata for Vec2 {
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impl Userdata for Vec2 {
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fn build<'a>(_state: &State, builder: &mut UserdataBuilder<'a, Vec2>) -> crate::Result<()> {
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fn build<'a>(_state: &State, builder: &mut UserdataBuilder<'a, Vec2>) -> crate::Result<()> {
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builder
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builder
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.field_getter("x", |_, this| this.x)
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.field_getter("x", |_, this| Ok(this.x))
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.field_getter("y", |_, this| this.y)
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.field_getter("y", |_, this| Ok(this.y))
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.field_setter("x", |_, this, x: f32| this.x = x)
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.field_setter("x", |_, this, x: f32| {
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.field_setter("y", |_, this, y: f32| this.y = y)
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this.x = x;
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Ok(())
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})
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.field_setter("y", |_, this, y: f32| {
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this.y = y;
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Ok(())
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})
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.function("new", |lua, (x, y)| lua.create_userdata(Vec2 { x, y }))
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.function("new", |lua, (x, y)| lua.create_userdata(Vec2 { x, y }))
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// method test
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// method test
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.method("add", |lua, lhs: &Vec2, (rhs,): (Ref<Vec2>,)| {
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.method("add", |lua, lhs: &Vec2, (rhs,): (Ref<Vec2>,)| {
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@ -8,6 +8,7 @@ pub type UserdataMutGetterFn<'a> = Arc<OnceCell<Box<dyn Fn(AnyUserdata<'a>) -> c
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pub struct UserdataBuilder<'a, T> {
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pub struct UserdataBuilder<'a, T> {
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pub(crate) name: String,
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pub(crate) name: String,
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pub(crate) field_consts: HashMap<String, UserdataFn<'a>>,
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pub(crate) field_getters: HashMap<String, UserdataFn<'a>>,
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pub(crate) field_getters: HashMap<String, UserdataFn<'a>>,
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pub(crate) field_setters: HashMap<String, UserdataFn<'a>>,
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pub(crate) field_setters: HashMap<String, UserdataFn<'a>>,
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pub(crate) functions: HashMap<String, UserdataFn<'a>>,
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pub(crate) functions: HashMap<String, UserdataFn<'a>>,
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@ -23,6 +24,7 @@ impl<'a, T: Userdata> UserdataBuilder<'a, T> {
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pub fn new() -> Self {
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pub fn new() -> Self {
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Self {
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Self {
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name: T::name(),
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name: T::name(),
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field_consts: HashMap::new(),
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field_getters: HashMap::new(),
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field_getters: HashMap::new(),
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field_setters: HashMap::new(),
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field_setters: HashMap::new(),
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functions: HashMap::new(),
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functions: HashMap::new(),
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@ -33,13 +35,14 @@ impl<'a, T: Userdata> UserdataBuilder<'a, T> {
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}
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}
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}
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}
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pub fn field_getter<F, R>(&mut self, name: &str, f: F) -> &mut Self
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pub fn field<R>(&mut self, name: &str, f: R) -> &mut Self
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where
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where
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F: Fn(&'a State, &T) -> R + 'static,
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//F: Fn(&'a State) -> R + 'static,
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R: AsLua<'a>,
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R: AsLua<'a>,
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T: Userdata + 'static
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//T: Userdata + 'static
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{
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{
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let wrapped = self.wrapped_getter.clone();
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todo!()
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/* let wrapped = self.wrapped_getter.clone();
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let wrapped: Arc<OnceCell<Box<dyn Fn(AnyUserdata<'_>) -> Result<*const (), crate::Error>>>> = unsafe { mem::transmute(wrapped) };
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let wrapped: Arc<OnceCell<Box<dyn Fn(AnyUserdata<'_>) -> Result<*const (), crate::Error>>>> = unsafe { mem::transmute(wrapped) };
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let ud_name = self.name.clone();
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let ud_name = self.name.clone();
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@ -68,12 +71,50 @@ impl<'a, T: Userdata> UserdataBuilder<'a, T> {
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};
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};
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self.field_getters.insert(name.to_string(), Box::new(wrap));
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self.field_getters.insert(name.to_string(), Box::new(wrap));
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self */
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}
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pub fn field_getter<F, R>(&mut self, name: &str, f: F) -> &mut Self
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where
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F: Fn(&'a State, &T) -> crate::Result<R> + 'static,
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R: AsLua<'a>,
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T: Userdata + 'static
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{
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let wrapped = self.wrapped_getter.clone();
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let wrapped: Arc<OnceCell<Box<dyn Fn(AnyUserdata<'_>) -> Result<*const (), crate::Error>>>> = unsafe { mem::transmute(wrapped) };
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let ud_name = self.name.clone();
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let fn_name = name.to_string();
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let wrap = move |lua: &'a State, mut val: ValueVec<'a>| {
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let val = val.pop_front().unwrap();
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let this = val.as_userdata().unwrap(); // if this panics, its a bug
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if let Some(getter) = wrapped.get() {
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let this_ptr = Self::result_to_bad_arg(
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getter(this.clone()),
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&ud_name,
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&fn_name,
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1,
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Some("self")
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)?;
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let this_ptr = this_ptr.cast::<T>();
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let this = unsafe { &*this_ptr };
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f(lua, this)?.as_lua(lua)
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} else {
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let this = this.as_ref::<T>()?;
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f(lua, &*this)?.as_lua(lua)
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}
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};
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self.field_getters.insert(name.to_string(), Box::new(wrap));
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self
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self
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}
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}
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pub fn field_setter<F, V>(&mut self, name: &str, f: F) -> &mut Self
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pub fn field_setter<F, V>(&mut self, name: &str, f: F) -> &mut Self
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where
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where
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F: Fn(&'a State, &mut T, V) -> () + 'static,
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F: Fn(&'a State, &mut T, V) -> crate::Result<()> + 'static,
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V: FromLua<'a>,
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V: FromLua<'a>,
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T: Userdata + 'static
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T: Userdata + 'static
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{
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{
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@ -101,11 +142,11 @@ impl<'a, T: Userdata> UserdataBuilder<'a, T> {
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let this_ptr = this_ptr.cast::<T>();
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let this_ptr = this_ptr.cast::<T>();
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let this = unsafe { this_ptr.as_mut().unwrap() };
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let this = unsafe { this_ptr.as_mut().unwrap() };
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f(lua, this, v_arg).as_lua(lua)
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f(lua, this, v_arg)?.as_lua(lua)
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} else {
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} else {
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let mut this = this.as_mut::<T>()?;
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let mut this = this.as_mut::<T>()?;
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f(lua, this.deref_mut(), v_arg).as_lua(lua)
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f(lua, this.deref_mut(), v_arg)?.as_lua(lua)
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}
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}
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};
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};
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self.field_setters.insert(name.to_string(), Box::new(wrap));
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self.field_setters.insert(name.to_string(), Box::new(wrap));
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66
src/value.rs
66
src/value.rs
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@ -417,23 +417,6 @@ impl<'a> IntoLuaVec<'a> for ValueVec<'a> {
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}
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}
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}
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}
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/* impl<'a> FromLua<'a> for ValueVec<'a> {
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fn from_lua(_lua: &'a State, val: Value<'a>) -> crate::Result<Self> {
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match val {
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Value::Variable(v) => Ok(v),
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_ => {
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Ok(ValueVec::from(val))
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}
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}
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}
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} */
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/* impl<'a> FromLuaVec<'a> for ValueVec<'a> {
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fn from_lua_value_vec(_state: &'a State, values: ValueVec<'a>) -> crate::Result<Self> {
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Ok(values)
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}
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} */
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impl<'a> PushToLuaStack<'a> for ValueVec<'a> {
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impl<'a> PushToLuaStack<'a> for ValueVec<'a> {
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unsafe fn push_to_lua_stack(&self, state: &'a State) -> crate::Result<()> {
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unsafe fn push_to_lua_stack(&self, state: &'a State) -> crate::Result<()> {
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for v in self.iter() {
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for v in self.iter() {
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@ -465,13 +448,6 @@ macro_rules! impl_from_lua_vec_for_from_lua {
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Some(1)
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Some(1)
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}
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}
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}
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}
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/* impl<'a> IntoLuaVec<'a> for $type<'a> {
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fn into_lua_value_vec(self, state: &'a State) -> crate::Result<ValueVec<'a>> {
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Ok(ValueVec::from(self.as_lua(state)?))
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}
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} */
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};
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};
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($type: tt) => {
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($type: tt) => {
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impl<'a> FromLuaVec<'a> for $type {
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impl<'a> FromLuaVec<'a> for $type {
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@ -490,16 +466,11 @@ macro_rules! impl_from_lua_vec_for_from_lua {
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Some(1)
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Some(1)
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}
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}
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}
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}
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/* impl<'a> IntoLuaVec<'a> for $type {
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fn into_lua_value_vec(self, state: &'a State) -> crate::Result<ValueVec<'a>> {
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Ok(ValueVec::from(self.as_lua(state)?))
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}
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} */
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};
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};
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}
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}
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impl_from_lua_vec_for_from_lua!(i64);
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impl_from_lua_vec_for_from_lua!(i64);
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impl_from_lua_vec_for_from_lua!(usize);
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impl_from_lua_vec_for_from_lua!(u64);
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impl_from_lua_vec_for_from_lua!(u64);
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impl_from_lua_vec_for_from_lua!(i16);
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impl_from_lua_vec_for_from_lua!(i16);
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impl_from_lua_vec_for_from_lua!(u16);
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impl_from_lua_vec_for_from_lua!(u16);
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@ -516,16 +487,6 @@ impl_from_lua_vec_for_from_lua!(Value, 'a);
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impl_from_lua_vec_for_from_lua!(Function, 'a);
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impl_from_lua_vec_for_from_lua!(Function, 'a);
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impl_from_lua_vec_for_from_lua!(AnyUserdata, 'a);
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impl_from_lua_vec_for_from_lua!(AnyUserdata, 'a);
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/* impl<'a, T: FromLua<'a>> FromLuaVec<'a> for T {
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fn from_lua_value_vec(state: &'a State, mut values: ValueVec<'a>) -> crate::Result<Self> {
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if let Some(v) = values.pop_front() {
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Ok(T::from_lua(state, v)?)
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} else {
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Err(Error::Nil)
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}
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}
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} */
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impl<'a, T: AsLua<'a>> IntoLuaVec<'a> for T {
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impl<'a, T: AsLua<'a>> IntoLuaVec<'a> for T {
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fn into_lua_value_vec(self, state: &'a State) -> crate::Result<ValueVec<'a>> {
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fn into_lua_value_vec(self, state: &'a State) -> crate::Result<ValueVec<'a>> {
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let mut v = ValueVec::new();
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let mut v = ValueVec::new();
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@ -607,12 +568,6 @@ impl<'a> FromLuaVec<'a> for () {
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}
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}
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}
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}
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/* impl<'a> IntoLuaVec<'a> for () {
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fn into_lua_value_vec(self, _state: &'a State) -> crate::Result<ValueVec<'a>> {
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Ok(ValueVec::new())
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}
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} */
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macro_rules! impl_from_lua_vec_tuple {
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macro_rules! impl_from_lua_vec_tuple {
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( $count: expr, $last: tt, $( $name: tt ),+ ) => (
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( $count: expr, $last: tt, $( $name: tt ),+ ) => (
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#[allow(non_snake_case)]
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#[allow(non_snake_case)]
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@ -709,3 +664,22 @@ macro_rules! impl_from_lua_vec_tuple {
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// hopefully 16 is more than enough
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// hopefully 16 is more than enough
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// if you have 16 function results, and need more than 16, you NEED help
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// if you have 16 function results, and need more than 16, you NEED help
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impl_from_lua_vec_tuple! { 16, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16 }
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impl_from_lua_vec_tuple! { 16, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16 }
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impl<'a, T: AsLua<'a>, const N: usize> AsLua<'a> for [T; N] {
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fn as_lua(self, lua: &'a State) -> crate::Result<Value<'a>> {
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let table = lua.create_table()?;
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for (idx, t) in self.into_iter().enumerate() {
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table.set(idx + 1, t)?;
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}
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Ok(Value::Table(table))
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}
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}
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// TODO: Find out a way to implement this
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/* impl<'a, T: FromLua> FromLuaVec<'a> for T {
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fn from_lua_value_vec(state: &'a State, values: ValueVec<'a>) -> crate::Result<Self> {
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todo!()
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}
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} */
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