Enum Error 

#[non_exhaustive]
pub enum Error {
    Io(Error),
    Parse(Box<ParseError>),
    Path(PathError),
    Source(SourceError),
    Profile(ProfileError),
    Target(TargetError),
    Var(VarError),
    Merge(MergeError),
}

Why a devset operation did not go through.

Each domain has its own error, so a caller matches as narrowly as it needs to: Error::Target(TargetError::Busy) is one lock, Error::Target every target failure.

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.

Io(Error)

Filesystem or process I/O failed; the message names the path.

Parse(Box<ParseError>)

A file devset reads does not parse.

Path(PathError)

A string is not a RelPath.

Source(SourceError)

A source is misconfigured, or git failed on it.

Profile(ProfileError)

A profile, or the layers together, do not resolve.

Target(TargetError)

The target cannot be found, read or written.

Var(VarError)

A variable is unanswered, unknown, or breaks a template.

Merge(MergeError)

A merge cannot run, or its resolution cannot be installed.

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.

impl From<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<MergeError> for Error

fn from(source: MergeError) -> Self

Converts to this type from the input type.

impl From<ParseError> for Error

fn from(error: ParseError) -> Self

Converts to this type from the input type.

impl From<PathError> for Error

fn from(source: PathError) -> Self

Converts to this type from the input type.

impl From<ProfileError> for Error

fn from(source: ProfileError) -> Self

Converts to this type from the input type.

impl From<SourceError> for Error

fn from(source: SourceError) -> Self

Converts to this type from the input type.

impl From<TargetError> for Error

fn from(source: TargetError) -> Self

Converts to this type from the input type.

impl From<VarError> for Error

fn from(source: VarError) -> Self

Converts to this type from the input type.