Enum ParamParseError 

pub enum ParamParseError {
    Empty,
    TypeDef {
        name: String,
    },
    MissingDef,
    InvalidFlag,
    InvalidGeneric,
    NotImplemented,
}

Errors produced while parsing a single parameter token.

Variants

Empty

An empty string was encountered where a name/type was expected.

TypeDef

A {X:Type} generic type definition (not a real error; used as a signal).

Fields

name: String

The name of the generic type parameter (e.g. "X" from {X:Type}).

MissingDef

A {…} block that isn’t a valid type definition.

InvalidFlag

A flag expression (name.N?Type) was malformed.

InvalidGeneric

A generic <…> argument was malformed (missing closing >).

NotImplemented

A bare name with no :type — e.g. old-style ? = Int.

Trait Implementations

impl Clone for ParamParseError

fn clone(&self) -> ParamParseError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParamParseError

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

Formats the value using the given formatter.

impl Display for ParamParseError

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

Formats the value using the given formatter.

impl Error for ParamParseError

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 ParamParseError

fn eq(&self, other: &ParamParseError) -> 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 ParamParseError