Struct SyntaxError 

pub struct SyntaxError {
    pub line: u32,
    pub msg: Vec<u8>,
}

Syntax error, formatted PUC-style: chunkname:line: msg near 'tok'. The near part is already baked into msg at construction time.

msg is a raw byte string — PUC 5.1 reports near '\xff'-style errors with the offending source byte verbatim, and errors.lua 5.1 :20 grep- matches that pattern. Carrying the message as Vec<u8> lets the lexer emit those bytes without UTF-8 enforcement getting in the way.

Fields

line: u32

1-based source line where the error was detected. 0 marks a message that PUC raises without a position prefix (e.g. 5.4’s “C stack overflow” while parsing, or a memory error).

msg: Vec<u8>

Message bytes (PUC-style; may contain non-UTF-8 source bytes).

Implementations

impl SyntaxError

pub fn new(line: u32, msg: impl Into<Vec<u8>>) -> Self

Build a SyntaxError at the given line with the given message bytes.

pub fn unpositioned(msg: impl Into<Vec<u8>>) -> Self

An error PUC reports with no chunk:line: prefix.

pub fn render(&self, chunkid: &[u8]) -> Vec<u8>

The complete message as load returns it: <chunkid>:<line>: msg, or the bare message for an unpositioned error. chunkid is the chunk name already rendered by luaO_chunkid.

pub fn msg_str(&self) -> Cow<'_, str>

Lossy &str for Rust-side display (PUC luaG_addinfo only cares about the bytes; this is for unit tests / panic messages).

Trait Implementations

impl Clone for SyntaxError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SyntaxError

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

Formats the value using the given formatter.

impl Display for SyntaxError

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

Formats the value using the given formatter.

impl Eq for SyntaxError

impl Error for SyntaxError

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<SyntaxError> for Error

fn from(e: SyntaxError) -> Error

Converts to this type from the input type.

impl PartialEq for SyntaxError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SyntaxError