Enum Error 

pub enum Error {
    PermissionDenied {
        instructions: String,
    },
    AccessibilityNotEnabled {
        app: String,
        instructions: String,
    },
    SelectorNotMatched {
        selector: String,
    },
    ElementStale {
        selector: String,
    },
    ActionNotSupported {
        action: String,
        role: Role,
    },
    TextValueNotSupported,
    Timeout {
        elapsed: Duration,
    },
    InvalidSelector {
        selector: String,
        message: String,
    },
    InvalidActionData {
        message: String,
    },
    NoElementBounds,
    Unsupported {
        feature: String,
    },
    Platform {
        code: i64,
        message: String,
    },
}

Structured error type for xa11y operations. Designed to be informative across FFI boundaries.

Variants

PermissionDenied

Accessibility permissions not granted.

Fields

instructions: String

AccessibilityNotEnabled

The target application advertises an accessibility tree but its content is empty because the app’s accessibility bridge is disabled (Chromium/Electron on Linux without --force-renderer-accessibility, for example).

Fields

app: String

instructions: String

SelectorNotMatched

No element matched the selector.

Fields

selector: String

ElementStale

The node’s platform handle is stale and re-traversal could not relocate it.

Fields

selector: String

ActionNotSupported

The requested action is not supported by this element.

Fields

action: String

role: Role

TextValueNotSupported

Text value input is not supported for this element on this platform.

Timeout

A wait_for or wait_for_event call exceeded its timeout.

Fields

elapsed: Duration

InvalidSelector

The selector string could not be parsed.

Fields

selector: String

message: String

InvalidActionData

Invalid argument to an action method.

Fields

message: String

NoElementBounds

The element has no bounds (e.g. an off-screen or virtual node), so a screen point can’t be computed for input simulation.

Unsupported

The requested operation has no implementation on this platform/session (e.g. pointer warp on Wayland without a portal grant).

Fields

feature: String

Platform

A platform-specific error occurred.

Fields

code: i64

message: String

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.