Enum UsageErr

pub enum UsageErr {
    InvalidFlag(String, SourceSpan, String),
    MissingFlag(String),
    InvalidInput(String, SourceSpan, NamedSource),
    MissingArg(String),
    Help(String),
    Miette(MietteError),
    IO(Error),
    Strum(ParseError),
    FromUtf8Error(FromUtf8Error),
    TeraError(Error),
    KdlError(KdlError),
    XXError(XXError),
}

Variants

InvalidFlag(String, SourceSpan, String)

MissingFlag(String)

InvalidInput(String, SourceSpan, NamedSource)

MissingArg(String)

Help(String)

Miette(MietteError)

IO(Error)

Strum(ParseError)

FromUtf8Error(FromUtf8Error)

TeraError(Error)

KdlError(KdlError)

XXError(XXError)

Trait Implementations

impl Debug for UsageErr

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

Formats the value using the given formatter.

impl Diagnostic for UsageErr

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

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

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

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

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

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

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

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

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

Additional related Diagnostics.

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

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

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

The cause of the error.

impl Display for UsageErr

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

Formats the value using the given formatter.

impl Error for UsageErr

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 UsageErr

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for UsageErr

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<FromUtf8Error> for UsageErr

fn from(source: FromUtf8Error) -> Self

Converts to this type from the input type.

impl From<KdlError> for UsageErr

fn from(source: KdlError) -> Self

Converts to this type from the input type.

impl From<MietteError> for UsageErr

fn from(source: MietteError) -> Self

Converts to this type from the input type.

impl From<ParseError> for UsageErr

fn from(source: ParseError) -> Self

Converts to this type from the input type.

impl From<XXError> for UsageErr

fn from(source: XXError) -> Self

Converts to this type from the input type.