Enum Error 

pub enum Error<'source> {
    ProgramLimitExceeded,
    InvalidBreak(Token<'source>),
    InvalidInteger(Token<'source>, ParseIntError),
    InvalidString(Token<'source>, EscapeError),
    InvalidIdentifier(Token<'source>, EscapeError),
    UndefinedSymbol(Token<'source>),
    InvalidAst(Error<'source>),
}

Variants

ProgramLimitExceeded

Emitted when the program is too large (produced bytecode larger than 4GiB)

InvalidBreak(Token<'source>)

Attempted to break out of a scope, but no parent scope accepted unlabeled breaks.

InvalidInteger(Token<'source>, ParseIntError)

The AST contained an integer that did not fit into the expected type.

InvalidString(Token<'source>, EscapeError)

The AST contained a string with an invalid escape sequence.

InvalidIdentifier(Token<'source>, EscapeError)

The AST contained an identifier with an invalid escape sequence.

UndefinedSymbol(Token<'source>)

A variable was referenced that did not exist.

InvalidAst(Error<'source>)

The AST contained an error.

Note that this only contains the first error that the parser encounted. Inspecting the AST directly allows you to see all of the errors the parser encountered with some additional context.

Implementations

impl<'source> Error<'source>

pub fn locate(&self, source: &'source str) -> Option<(usize, usize)>

Provides the span of source code causing this compiler error, if one is available.

Note that this method will return None in the case of an invalid ast. Inspect ast diagnostics directly if you want to format them.

Panics

Panics if provided a aosurce string slice that this error did not originate from.

Trait Implementations

impl<'source> Debug for Error<'source>

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

Formats the value using the given formatter.

impl<'source> Display for Error<'source>

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

Formats the value using the given formatter.

impl<'source> Error for Error<'source>

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<TryFromIntError> for Error<'_>

fn from(_: TryFromIntError) -> Self

Converts to this type from the input type.