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ErrorBoundary

Struct ErrorBoundary 

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pub struct ErrorBoundary<W> { /* private fields */ }
Expand description

A widget wrapper that catches panics from an inner widget.

When the inner widget panics during rendering, the error boundary captures the panic and renders a fallback error indicator instead.

Uses StatefulWidget so the error state persists across renders.

§Example

let boundary = ErrorBoundary::new(my_widget, "my_widget");
let mut state = ErrorBoundaryState::default();
boundary.render(area, &mut buf, &mut state);

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impl<W: Widget> ErrorBoundary<W>

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pub fn new(inner: W, widget_name: &'static str) -> Self

Create a new error boundary wrapping the given widget.

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pub fn max_recovery_attempts(self, max: u32) -> Self

Set maximum recovery attempts before permanent fallback.

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pub fn widget_name(&self) -> &'static str

Get the widget name.

Trait Implementations§

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impl<W: Clone> Clone for ErrorBoundary<W>

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fn clone(&self) -> ErrorBoundary<W>

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<W: Debug> Debug for ErrorBoundary<W>

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

Formats the value using the given formatter. Read more
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impl<W: Widget> StatefulWidget for ErrorBoundary<W>

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type State = ErrorBoundaryState

The state type associated with this widget.
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fn render( &self, area: Rect, frame: &mut Frame<'_>, state: &mut ErrorBoundaryState, )

Render the widget into the frame, potentially modifying state. Read more

Auto Trait Implementations§

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impl<W> Freeze for ErrorBoundary<W>
where W: Freeze,

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impl<W> RefUnwindSafe for ErrorBoundary<W>
where W: RefUnwindSafe,

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impl<W> Send for ErrorBoundary<W>
where W: Send,

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impl<W> Sync for ErrorBoundary<W>
where W: Sync,

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impl<W> Unpin for ErrorBoundary<W>
where W: Unpin,

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impl<W> UnwindSafe for ErrorBoundary<W>
where W: UnwindSafe,

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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more