Function ErrorBoundary

errors.go:14–24

ErrorBoundary wraps a child view and catches panics during rendering. Accepts either a View, a Viewable, or a *componentNode. Viewable values are wrapped into a component so their Body() call is guarded. The fallback is registered on the component as a side channel; the rendering path consults it o

(child any, fallback func(err error) View)

// component across re-renders only updates the fallback, instead of
// nesting panic-recovery wrappers around renderFn.
func ErrorBoundary(child any, fallback func(err error) View) *viewNode {
	view := asView(child)
	if view == nil {
		return &viewNode{kind: viewKindGroup}
	}
	if comp, ok := view.(*componentNode); ok {
		comp.errFallback = fallback
		return comp.viewNode()
	}
	return view.viewNode()
}

func toError(r any) error {
	switch v := r.(type) {