PropContext

Struct PropContext 

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pub struct PropContext { /* private fields */ }
Expand description

PropContext is a struct that provides helpful information inside a get/set property handler.

Like Context, but for get/set property handlers.

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impl PropContext

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pub fn path(&self) -> &Path<'static>

The current object path.

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pub fn interface(&self) -> &Interface<'static>

The current interface name.

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pub fn name(&self) -> &str

The current property name.

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pub fn message(&self) -> Option<&Message>

The message, if any, that caused this method to be called.

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pub fn reply<A: Arg + RefArg + Send + Append + 'static>( &mut self, reply: Result<A, MethodErr>, ) -> PhantomData<A>

Set a reply to message (use in async context only)

Returns PhantomData just to aid the type system

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pub fn reply_noemit(&mut self, reply: Result<(), MethodErr>)

Set a reply to a “set property” message (use in async context only)

This can be used when the property does not send a “EmitsChanged” signal.

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pub fn check<R, F: FnOnce(Option<&mut Context>) -> Result<R, MethodErr>>( &mut self, f: F, ) -> Result<R, ()>

Convenience method that sets an error reply if the closure returns an error.

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impl Debug for PropContext

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

Formats the value using the given formatter. Read more

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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, U> Into<U> 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, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.