Enum Error 

pub enum Error {
    RegistryClientFailed(Error),
    UnknownPackage {
        name: String,
        span: SourceSpan,
    },
    InvalidPackageName {
        name: String,
        span: SourceSpan,
    },
    UnknownPackageVersion {
        name: String,
        version: Version,
        span: SourceSpan,
    },
    CannotInstantiateSelf {
        span: SourceSpan,
    },
    PackageDoesNotExist {
        name: String,
        span: SourceSpan,
    },
    PackageVersionDoesNotExist {
        name: String,
        version: Version,
        span: SourceSpan,
    },
    PackageNoReleases {
        name: String,
        span: SourceSpan,
    },
    RegistryUpdateFailure {
        source: Error,
    },
    RegistryDownloadFailure {
        source: Error,
    },
    RegistryContentFailure {
        path: PathBuf,
        source: Error,
    },
    PackageResolutionFailure {
        name: String,
        span: SourceSpan,
        source: Error,
    },
}

Represents a package resolution error.

Variants

RegistryClientFailed(Error)

Failed to create registry client.

UnknownPackage

An unknown package was encountered.

Fields

name: String

The name of the package.

span: SourceSpan

The span where the error occurred.

InvalidPackageName

An invalid package name was encountered.

Fields

name: String

The name of the package.

span: SourceSpan

The span where the error occurred.

UnknownPackageVersion

An unknown package version was encountered.

Fields

name: String

The name of the package.

version: Version

The version of the package that does not exist.

span: SourceSpan

The span where the error occurred.

CannotInstantiateSelf

Cannot instantiate the package being defined.

Fields

span: SourceSpan

The span where the error occurred.

PackageDoesNotExist

Cannot instantiate the package being defined.

Fields

name: String

The name of the package that does not exist.

span: SourceSpan

The span where the error occurred.

PackageVersionDoesNotExist

The requested package version does not exist.

Fields

name: String

The name of the package.

version: Version

The version of the package.

span: SourceSpan

The span where the error occurred.

PackageNoReleases

A package has no releases.

Fields

name: String

The name of the package.

span: SourceSpan

The span where the error occurred.

RegistryUpdateFailure

A failure occurred while updating logs from the registry.

Fields

source: Error

The underlying error.

RegistryDownloadFailure

A failure occurred while downloading content from the registry.

Fields

source: Error

The underlying error.

RegistryContentFailure

A failure occurred while reading content from registry storage.

Fields

path: PathBuf

The path to the content.

source: Error

The underlying error.

PackageResolutionFailure

A package failed to resolve.

Fields

name: String

The name of the package.

span: SourceSpan

The span where the error occurred.

source: Error

The underlying error.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Diagnostic for Error

fn code(&self) -> Option<Box<dyn Display + '_>>

Unique diagnostic code that can be used to look up more information about this Diagnostic. Ideally also globally unique, and documented in the toplevel crate’s documentation for easy searching. Rust path format (foo::bar::baz) is recommended, but more classic codes like E0123 or enums will work just fine.

fn labels(&self) -> Option<Box<dyn Iterator<Item = LabeledSpan> + '_>>

Labels to apply to this Diagnostic’s Diagnostic::source_code

fn severity(&self) -> Option<Severity>

Diagnostic severity. This may be used by ReportHandlers to change the display format of this diagnostic.

fn help<'a>(&'a self) -> Option<Box<dyn Display + 'a>>

Additional help text related to this Diagnostic. Do you have any advice for the poor soul who’s just run into this issue?

fn url<'a>(&'a self) -> Option<Box<dyn Display + 'a>>

URL to visit for a more detailed explanation/help about this Diagnostic.

fn source_code(&self) -> Option<&dyn SourceCode>

Source code to apply this Diagnostic’s Diagnostic::labels to.

fn related<'a>( &'a self, ) -> Option<Box<dyn Iterator<Item = &'a dyn Diagnostic> + 'a>>

Additional related Diagnostics.

fn diagnostic_source(&self) -> Option<&dyn Diagnostic>

The cause of the error.

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.