Enum target_spec::errors::Error

#[non_exhaustive]
pub enum Error {
    InvalidExpression(ExpressionParseError),
    UnknownTargetTriple(TripleParseError),
    UnknownPlatformTriple(TripleParseError),
    UnknownPredicate(String),
}

An error that happened during target-spec parsing or evaluation.

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.

InvalidExpression(ExpressionParseError)

Tuple Fields

0: ExpressionParseError

A cfg() expression was invalid and could not be parsed.

UnknownTargetTriple(TripleParseError)

Tuple Fields

0: TripleParseError

The provided target triple (in the position that a cfg() expression would be) was unknown.

UnknownPlatformTriple(TripleParseError)

Tuple Fields

0: TripleParseError

The provided platform triple was unknown.

UnknownPredicate(String)

Tuple Fields

0: String

The provided cfg() expression parsed correctly, but it had an unknown predicate.

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 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

impl PartialEq<Error> for Error

fn eq(&self, other: &Error) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Error) -> bool

This method tests for !=.

impl StructuralPartialEq for Error