Struct ParseError 

pub struct ParseError {
    pub line: Option<usize>,
    pub column: Option<usize>,
    pub message: String,
}

A single parse error with source location.

Fields

line: Option<usize>

1-based line number where the error occurred, if known.

column: Option<usize>

1-based column number where the error occurred, if known.

message: String

Human-readable description of what went wrong.

Implementations

impl ParseError

pub fn new(message: impl Into<String>) -> Self

Create a parse error with a message only (no location).

pub fn at_line(line: usize, message: impl Into<String>) -> Self

Create a parse error with a line number.

pub fn at(line: usize, column: usize, message: impl Into<String>) -> Self

Create a parse error with a full source location.

Trait Implementations

impl Clone for ParseError

fn clone(&self) -> ParseError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParseError

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

Formats the value using the given formatter.

impl Display for ParseError

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

Formats the value using the given formatter.

impl PartialEq for ParseError

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