Enum MacrosError

pub enum MacrosError {
    Parse(ParseError),
    User(Box<dyn Error + Send + Sync>),
}

The error type for this crate. Can be either a Parse(ParseError) from this crate or a User(Box<dyn Error + Send + Sync>) user error.

Variants

Parse(ParseError)

User(Box<dyn Error + Send + Sync>)

Implementations

impl MacrosError

pub fn into_diagnostic(self) -> Diagnostic

Convert the error into a proc_macro_error::Diagnostic.

pub fn unexpected_end_of_input(self, msg: &str) -> Self

Add a message to the error if it is a Self::Parse and the error is an UnexpectedEndOfInput.

Trait Implementations

impl Debug for MacrosError

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

Formats the value using the given formatter.

impl Display for MacrosError

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

Formats the value using the given formatter.

impl Error for MacrosError

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<Box<dyn Error + Send + Sync>> for MacrosError

fn from(error: Box<dyn Error + Send + Sync>) -> Self

Converts to this type from the input type.

impl From<ParseError> for MacrosError

fn from(error: ParseError) -> Self

Converts to this type from the input type.