Enum Error 

#[non_exhaustive]
pub enum Error {
    InvalidNodeRef {
        noderef: NodeRef,
        description: String,
        backtrace: Backtrace,
    },
    InvalidNodeOperation {
        message: String,
        description: String,
        backtrace: Backtrace,
    },
    Io {
        message: String,
        description: String,
        source: Option<Box<dyn CoreError + 'static>>,
        backtrace: Backtrace,
    },
}

Custom error type for the rushdown library.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

InvalidNodeRef

Invalid node reference error.

Fields

noderef: NodeRef

description: String

backtrace: Backtrace

InvalidNodeOperation

Invalid node operation error.

Fields

message: String

description: String

backtrace: Backtrace

Io

I/O error.

Fields

message: String

description: String

source: Option<Box<dyn CoreError + 'static>>

backtrace: Backtrace

Implementations

impl Error

pub fn invalid_node_ref(node_ref: NodeRef) -> Self

Creates a new invalid node reference error.

pub fn invalid_node_operation(message: String) -> Self

Creates a new invalid operation error with a message.

pub fn io<S>(m: S, source: Option<Box<dyn CoreError + 'static>>) -> Self

where S: Into<String>,

Creates a new I/O error with an optional source error.

pub fn backtrace(&self) -> Option<&Backtrace>

Returns the backtrace associated with the error, if available. This is only available when the std feature is enabled.

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, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for Error

fn source(&self) -> Option<&(dyn CoreError + '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.