Enum ParametersError 

pub enum ParametersError {
    Unnamed {
        operation: &'static str,
    },
    Undeclared {
        operation: &'static str,
        name: String,
    },
    Repeated {
        operation: &'static str,
        name: &'static str,
    },
    Missing {
        operation: &'static str,
        name: &'static str,
    },
    MissingValue {
        operation: &'static str,
        name: &'static str,
    },
    WrongType {
        operation: &'static str,
        name: &'static str,
        expected: &'static str,
    },
}

Why a Parameters resource does not fit an operation’s declared parameter set. Every variant names the operation and the parameter.

Variants

Unnamed

A parameter has no name.

Fields

operation: &'static str

The operation, as Resource/$code.

Undeclared

A parameter the operation does not declare.

Fields

operation: &'static str

The operation, as Resource/$code.

name: String

The parameter name (dotted for a part).

Repeated

A parameter with a maximum of one given more than once.

Fields

operation: &'static str

The operation, as Resource/$code.

name: &'static str

The parameter name (dotted for a part).

Missing

A required parameter is absent.

Fields

operation: &'static str

The operation, as Resource/$code.

name: &'static str

The parameter name (dotted for a part).

MissingValue

A parameter carries neither a value nor a resource.

Fields

operation: &'static str

The operation, as Resource/$code.

name: &'static str

The parameter name (dotted for a part).

WrongType

A parameter’s value is not of the declared type.

Fields

operation: &'static str

The operation, as Resource/$code.

name: &'static str

The parameter name (dotted for a part).

expected: &'static str

The declared type.

Trait Implementations

impl Clone for ParametersError

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ParametersError

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

Formats the value using the given formatter.

impl Display for ParametersError

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

Formats the value using the given formatter.

impl Eq for ParametersError

impl Error for ParametersError

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 ParametersError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ParametersError