Enum InvalidFunctionReason 

#[non_exhaustive]
pub enum InvalidFunctionReason {
    VariadicParamMustComeLast {
        span: Span,
    },
    EnvironmentParamMustComeFirst {
        span: Span,
    },
}

An error that occurs calling FunctionDef::validate.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

VariadicParamMustComeLast

Fields

span: Span

EnvironmentParamMustComeFirst

Fields

span: Span

Trait Implementations

impl Clone for InvalidFunctionReason

fn clone(&self) -> InvalidFunctionReason

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for InvalidFunctionReason

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

Formats the value using the given formatter.

impl Display for InvalidFunctionReason

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

Formats the value using the given formatter.

impl Error for InvalidFunctionReason

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 InvalidFunctionReason

fn eq(&self, other: &InvalidFunctionReason) -> 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 Eq for InvalidFunctionReason

impl StructuralPartialEq for InvalidFunctionReason