Enum ParameterError 

pub enum ParameterError {
    Empty,
    InvalidCharacter(char),
    TooLong {
        max: usize,
    },
    MustStartWithLetter,
    NotFound(String),
    TypeMismatch {
        expected: ParamType,
        got: ParamType,
    },
    OutOfRange {
        value: f32,
        min: f32,
        max: f32,
    },
    InvalidChoice(String),
    Duplicate(String),
    ReadOnly(String),
}

Errors that can occur during parameter operations

Variants

Empty

Parameter name is empty

InvalidCharacter(char)

Parameter name contains invalid character

TooLong

Parameter name is too long

Fields

max: usize

Maximum allowed length

MustStartWithLetter

Parameter name must start with a letter

NotFound(String)

Parameter not found

TypeMismatch

Parameter type mismatch

Fields

expected: ParamType

Expected parameter type

got: ParamType

Actual parameter type

OutOfRange

Value out of range

Fields

value: f32

The value that was out of range

min: f32

Minimum allowed value

max: f32

Maximum allowed value

InvalidChoice(String)

Invalid choice (for Choice parameters)

Duplicate(String)

Duplicate parameter

ReadOnly(String)

Parameter is read-only

Implementations

impl ParameterError

pub fn not_found(name: impl Into<String>) -> Self

Create a new not found error

pub fn type_mismatch(expected: ParamType, got: ParamType) -> Self

Create a new type mismatch error

pub fn out_of_range(value: f32, min: f32, max: f32) -> Self

Create a new out of range error

pub fn invalid_choice(choice: impl Into<String>) -> Self

Create a new invalid choice error

pub fn duplicate(name: impl Into<String>) -> Self

Create a new duplicate parameter error

pub fn read_only(name: impl Into<String>) -> Self

Create a new read-only error

Trait Implementations

impl Clone for ParameterError

fn clone(&self) -> ParameterError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParameterError

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

Formats the value using the given formatter.

impl Display for ParameterError

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

Formats the value using the given formatter.

impl Error for ParameterError

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<ParameterError> for ProcessError

fn from(err: ParameterError) -> Self

Converts to this type from the input type.

impl PartialEq for ParameterError

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for ParameterError