Struct ParseError 

pub struct ParseError {
    pub position: usize,
    pub expected: Vec<Expected>,
    pub context: Vec<&'static str>,
}

構造化パースエラー。位置・期待トークン・コンテキストを保持する。

Fields

position: usize

失敗した byte offset

expected: Vec<Expected>

期待していたトークンの集合

context: Vec<&'static str>

コンテキストスタック（外側から内側の順）

Implementations

impl ParseError

pub fn new(position: usize, expected: Expected) -> Self

pub fn expected_char(position: usize, c: char) -> Self

pub fn expected_tag(position: usize, tag: &'static str) -> Self

pub fn expected_description(position: usize, desc: &'static str) -> Self

pub fn expected_eof(position: usize) -> Self

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 ContextError for ParseError

fn add_context(self, context: &'static str) -> Self

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 MergeError for ParseError

fn merge(self, other: Self) -> Self

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 Eq for ParseError

impl StructuralPartialEq for ParseError