Enum ParseError 

pub enum ParseError {
    MathError {
        position: usize,
        message: String,
    },
    SyntaxError {
        line: usize,
        column: usize,
        message: String,
    },
    VariableNotFound {
        name: String,
    },
    InvalidOperator {
        operator: String,
    },
    IoError(String),
    JsonError(String),
    OperatorError(String),
    InvalidEscape {
        position: usize,
    },
    UnclosedString {
        position: usize,
    },
    Multiple(Vec<ParseError>),
}

---

Custom Error Types (Improvement #1)

Variants

MathError

Fields

position: usize

message: String

SyntaxError

Fields

line: usize

column: usize

message: String

VariableNotFound

Fields

name: String

InvalidOperator

Fields

operator: String

IoError(String)

JsonError(String)

OperatorError(String)

InvalidEscape

Fields

position: usize

UnclosedString

Fields

position: usize

Multiple(Vec<ParseError>)

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, __formatter: &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 From<Error> for ParseError

fn from(err: Error) -> Self

Converts to this type from the input type.

impl From<Error> for ParseError

fn from(err: Error) -> Self

Converts to this type from the input type.