Enum SubstitutionError 

pub enum SubstitutionError {
    MissingParameter {
        parameter: String,
    },
    UnrepresentableValue {
        parameter: String,
        kind: &'static str,
    },
    InteriorNul {
        parameter: String,
    },
}

A value supplied for a parameter could not be rendered into an argument.

Variants

MissingParameter

The command references a parameter that the call did not supply.

Fields

parameter: String

The referenced parameter name.

UnrepresentableValue

A supplied value has no single unambiguous argument form.

Fields

parameter: String

The referenced parameter name.

kind: &'static str

The JSON kind that was supplied.

InteriorNul

A supplied value contains a NUL byte.

Refused rather than truncated: an argument is delivered to the kernel as a NUL-terminated string, so a NUL inside a value would silently cut the argument short and change what the program receives.

Fields

parameter: String

The referenced parameter name.

Trait Implementations

impl Debug for SubstitutionError

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

Formats the value using the given formatter.

impl Display for SubstitutionError

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

Formats the value using the given formatter.

impl Eq for SubstitutionError

impl Error for SubstitutionError

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 SubstitutionError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SubstitutionError