Enum ParseError 

pub enum ParseError {
    UnexpectedCharacter {
        message: String,
        loc: Option<SourceLocation>,
    },
    ExpectedToken {
        expected: String,
        actual: Diagnostic,
    },
    UndefinedControlSequence {
        name: String,
        loc: Option<SourceLocation>,
    },
    InvalidArgument {
        message: String,
        loc: Option<SourceLocation>,
    },
    DoubleSuperscript {
        loc: Option<SourceLocation>,
    },
    DoubleSubscript {
        loc: Option<SourceLocation>,
    },
    ExpectedGroupAfter {
        symbol: String,
        loc: Option<SourceLocation>,
    },
    FunctionNotAllowed {
        func_name: String,
        context: String,
        loc: Option<SourceLocation>,
    },
    MissingFunctionHandler {
        func_name: String,
        loc: Option<SourceLocation>,
    },
    TooManyExpansions {
        limit: usize,
    },
    InternalInvariant {
        message: String,
    },
}

A parse failure, mirroring MoonBit’s ParseFailure suberror.

Variants

UnexpectedCharacter

Fields

message: String

loc: Option<SourceLocation>

ExpectedToken

Fields

expected: String

actual: Diagnostic

UndefinedControlSequence

Fields

name: String

loc: Option<SourceLocation>

InvalidArgument

Fields

message: String

loc: Option<SourceLocation>

DoubleSuperscript

Fields

loc: Option<SourceLocation>

DoubleSubscript

Fields

loc: Option<SourceLocation>

ExpectedGroupAfter

Fields

symbol: String

loc: Option<SourceLocation>

FunctionNotAllowed

Fields

func_name: String

context: String

loc: Option<SourceLocation>

MissingFunctionHandler

Fields

func_name: String

loc: Option<SourceLocation>

TooManyExpansions

Fields

limit: usize

InternalInvariant

Fields

message: String

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 Error for ParseError

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 PartialEq for ParseError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ParseError