Enum umbra_lang::Error

pub enum Error {
    Argument(String),
    Parse(String, Option<Pos>),
    Script(String, Option<Pos>),
    Control(String, Option<Box<TVal>>),
    Custom(TVal),
}

An error that occured during argument handling, parsing, script execution, or for control flow or other purposes.

Variants

Argument(String)

A provided argument is invalid.

Parse(String, Option<Pos>)

The Token stream could not be reduced to a valid AST.

Script(String, Option<Pos>)

The script encountered an error during execution.

Control(String, Option<Box<TVal>>)

A control flow macro such as return created this error.

Custom(TVal)

An error from the script that couldn’t be parsed as any other error.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

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 Error + 'static)>

The lower-level source of this error, if any.

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

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

Returns a stack backtrace, if available, of where this error occurred.

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