Struct ErrorBoundary 

pub struct ErrorBoundary { /* private fields */ }

Catches panics (and future framework-level errors) from a child subtree and renders a fallback element in their place.

Phase 1 note

In Phase 1 the child is already a resolved Element, so render() simply returns the child clone. Panic catching around RosaceComponent::build() calls happens at the framework dispatch level (in rosace-render / rosace-cli), not here. The ErrorBoundary struct and its API are the stable surface; the real panic-catching wiring is added in a later phase.

Implementations

impl ErrorBoundary

pub fn new() -> Self

Creates an ErrorBoundary with a default fallback that renders the error message as a text element.

pub fn fallback( self, f: impl Fn(&RosaceError) -> Element + Send + Sync + 'static, ) -> Self

Replaces the fallback renderer.

pub fn child(self, element: impl Into<Element>) -> Self

Sets the child element to render when no error has occurred.

pub fn render(&self) -> Element

Returns the child element.

In Phase 1 this always returns the child as-is. The real panic-catching path wraps RosaceComponent::build() at the framework dispatch level.

Trait Implementations

impl Default for ErrorBoundary

fn default() -> Self

Returns the “default value” for a type.