Struct UserDataRef

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pub struct UserDataRef<T>where
    T: 'static,
{ /* private fields */ }

Available on crate feature mlua only.

Expand description

A wrapper type for a userdata value that provides read access.

It implements FromLua and can be used to receive a typed userdata from Lua.

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impl<T> Debug for UserDataRef<T>
where T: Debug,

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more

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impl<T> Deref for UserDataRef<T>

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type Target = T

The resulting type after dereferencing.

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fn deref(&self) -> &T

Dereferences the value.

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impl<T> Display for UserDataRef<T>
where T: Display,

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more

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impl<T> FromLua for UserDataRef<T>
where T: 'static,

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fn from_lua(value: Value, _: &Lua) -> Result<UserDataRef<T>, Error>

Performs the conversion.

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impl<T> TryFrom<UserDataVariant<T>> for UserDataRef<T>

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type Error = Error

The type returned in the event of a conversion error.

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fn try_from(variant: UserDataVariant<T>) -> Result<UserDataRef<T>, Error>

Performs the conversion.

Auto Trait Implementations§

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impl<T> !UnwindSafe for UserDataRef<T>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> FromLuaMulti for T
where T: FromLua,

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fn from_lua_multi(values: MultiValue, lua: &Lua) -> Result<T, Error>

Performs the conversion. Read more

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fn from_lua_args( args: MultiValue, i: usize, to: Option<&str>, lua: &Lua, ) -> Result<T, Error>

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unsafe fn from_stack_multi(nvals: i32, lua: &RawLua) -> Result<T, Error>

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unsafe fn from_stack_args( nargs: i32, i: usize, to: Option<&str>, lua: &RawLua, ) -> Result<T, Error>

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impl<T, U> Into for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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