Enum PackageError 

pub enum PackageError {
    MissingPackage,
    MissingName,
    MissingVersion,
    InvalidVersion(String),
    MissingPath(String),
    UnsupportedSource(String),
    SelfDependency(String),
    CircularDependency(String),
    DuplicateDependency(String),
    PathNotFound(String),
    MixedSources(String),
    MissingGitUrl(String),
    InvalidGitUrl(String),
    UnsupportedUrlScheme(String),
    MultipleGitRefs(String),
    MissingGitRef(String),
    EmptyGitRef(String),
    Other(String),
}

Errors raised while validating a local package manifest/dependency graph.

Variants

MissingPackage

The [package] section is absent, but a manifest operation needs it.

MissingName

[package] has no name.

MissingVersion

[package] has no version.

InvalidVersion(String)

[package].version is not a valid semver (MAJOR.MINOR.PATCH[...]).

MissingPath(String)

A [dependencies] entry has no path (the only supported source).

UnsupportedSource(String)

A [dependencies] entry references an unknown/non-path key (e.g. git).

SelfDependency(String)

A dependency name is also a declared package (self-dependency).

CircularDependency(String)

The dependency graph contains a cycle.

DuplicateDependency(String)

The dependency graph declares the same dependency more than once.

PathNotFound(String)

A dependency’s path does not exist on disk.

MixedSources(String)

A dependency declares both a path and a git source.

MissingGitUrl(String)

A git dependency is missing its URL.

InvalidGitUrl(String)

A git dependency URL is not a valid URL.

UnsupportedUrlScheme(String)

A git dependency URL uses an unsupported scheme (only https/http/git/ssh).

MultipleGitRefs(String)

A git dependency specifies more than one of branch/tag/rev.

MissingGitRef(String)

A git dependency specifies none of branch/tag/rev.

EmptyGitRef(String)

A git dependency’s branch/tag/rev value is empty.

Other(String)

Generic error carrying a free-form message (used by packaging I/O).

Trait Implementations

impl Debug for PackageError

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

Formats the value using the given formatter.

impl Display for PackageError

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

Formats the value using the given formatter.

impl Error for PackageError

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 PartialEq for PackageError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PackageError