Enum lexical_core::Error

#[non_exhaustive]
pub enum Error {
    Overflow(usize),
    Underflow(usize),
    InvalidDigit(usize),
    Empty(usize),
    EmptyMantissa(usize),
    EmptyExponent(usize),
    EmptyInteger(usize),
    EmptyFraction(usize),
    InvalidPositiveMantissaSign(usize),
    MissingMantissaSign(usize),
    InvalidExponent(usize),
    InvalidPositiveExponentSign(usize),
    MissingExponentSign(usize),
    ExponentWithoutFraction(usize),
    InvalidLeadingZeros(usize),
    MissingExponent(usize),
    MissingSign(usize),
    InvalidPositiveSign(usize),
    InvalidNegativeSign(usize),
    InvalidMantissaRadix,
    InvalidExponentBase,
    InvalidExponentRadix,
    InvalidDigitSeparator,
    InvalidDecimalPoint,
    InvalidExponentSymbol,
    InvalidBasePrefix,
    InvalidBaseSuffix,
    InvalidPunctuation,
    InvalidExponentFlags,
    InvalidMantissaSign,
    InvalidExponentSign,
    InvalidSpecial,
    InvalidConsecutiveIntegerDigitSeparator,
    InvalidConsecutiveFractionDigitSeparator,
    InvalidConsecutiveExponentDigitSeparator,
    InvalidFlags,
    InvalidNanString,
    NanStringTooLong,
    InvalidInfString,
    InfStringTooLong,
    InvalidInfinityString,
    InfinityStringTooLong,
    InfinityStringTooShort,
    InvalidFloatParseAlgorithm,
    InvalidRadix,
    InvalidFloatPrecision,
    InvalidNegativeExponentBreak,
    InvalidPositiveExponentBreak,
    Success,
}

Error code during parsing, indicating failure type.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Overflow(usize)

Integral overflow occurred during numeric parsing.

Underflow(usize)

Integral underflow occurred during numeric parsing.

InvalidDigit(usize)

Invalid digit found before string termination.

Empty(usize)

Empty byte array found.

EmptyMantissa(usize)

Empty mantissa found.

EmptyExponent(usize)

Empty exponent found.

EmptyInteger(usize)

Empty integer found.

EmptyFraction(usize)

Empty fraction found.

InvalidPositiveMantissaSign(usize)

Invalid positive mantissa sign was found.

MissingMantissaSign(usize)

Mantissa sign was required(usize), but not found.

InvalidExponent(usize)

Exponent was present but not allowed.

InvalidPositiveExponentSign(usize)

Invalid positive exponent sign was found.

MissingExponentSign(usize)

Exponent sign was required(usize), but not found.

ExponentWithoutFraction(usize)

Exponent was present without fraction component.

InvalidLeadingZeros(usize)

Integer or integer component of float had invalid leading zeros.

MissingExponent(usize)

No exponent with required exponent notation.

MissingSign(usize)

Integral sign was required(usize), but not found.

InvalidPositiveSign(usize)

Invalid positive sign for an integer was found.

InvalidNegativeSign(usize)

Invalid negative sign for an unsigned type was found.

InvalidMantissaRadix

Invalid radix for the mantissa (significant) digits.

InvalidExponentBase

Invalid base for the exponent.

InvalidExponentRadix

Invalid radix for the exponent digits.

InvalidDigitSeparator

Invalid digit separator character.

InvalidDecimalPoint

Invalid decimal point character.

InvalidExponentSymbol

Invalid symbol to represent exponent notation.

InvalidBasePrefix

Invalid character for a base prefix.

InvalidBaseSuffix

Invalid character for a base suffix.

InvalidPunctuation

Invalid punctuation characters: multiple symbols overlap.

InvalidExponentFlags

Optional exponent flags were set while disabling exponent notation.

InvalidMantissaSign

Set no positive mantissa sign while requiring mantissa signs.

InvalidExponentSign

Set no positive exponent sign while requiring exponent signs.

InvalidSpecial

Set optional special float flags while disable special floats.

InvalidConsecutiveIntegerDigitSeparator

Invalid consecutive integer digit separator.

InvalidConsecutiveFractionDigitSeparator

Invalid consecutive fraction digit separator.

InvalidConsecutiveExponentDigitSeparator

Invalid consecutive exponent digit separator.

InvalidFlags

Invalid flags were set without the format feature.

InvalidNanString

Invalid NaN string: must start with an n character.

NanStringTooLong

NaN string is too long.

InvalidInfString

Invalid short infinity string: must start with an i character.

InfStringTooLong

Short infinity string is too long.

InvalidInfinityString

Invalid long infinity string: must start with an i character.

InfinityStringTooLong

Long infinity string is too long.

InfinityStringTooShort

Long infinity string is too short: it must be as long as short infinity.

InvalidFloatParseAlgorithm

Invalid float parsing algorithm.

InvalidRadix

Invalid radix for the significant digits.

InvalidFloatPrecision

Invalid precision flags for writing floats.

InvalidNegativeExponentBreak

Invalid negative exponent break: break is above 0.

InvalidPositiveExponentBreak

Invalid positive exponent break: break is below 0.

Success

An error did not actually occur, and the result was successful.

Implementations

impl Error

pub fn index(&self) -> Option<&usize>

Get the index for the parsing error.

pub const fn is_overflow(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_underflow(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_digit(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_empty(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_empty_mantissa(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_empty_exponent(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_empty_integer(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_empty_fraction(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_positive_mantissa_sign(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_missing_mantissa_sign(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_exponent(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_positive_exponent_sign(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_missing_exponent_sign(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_exponent_without_fraction(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_leading_zeros(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_missing_exponent(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_missing_sign(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_positive_sign(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_negative_sign(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_mantissa_radix(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_exponent_base(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_exponent_radix(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_digit_separator(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_decimal_point(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_exponent_symbol(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_base_prefix(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_base_suffix(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_punctuation(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_exponent_flags(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_mantissa_sign(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_exponent_sign(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_special(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_consecutive_integer_digit_separator(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_consecutive_fraction_digit_separator(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_consecutive_exponent_digit_separator(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_flags(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_nan_string(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_nan_string_too_long(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_inf_string(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_inf_string_too_long(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_infinity_string(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_infinity_string_too_long(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_infinity_string_too_short(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_float_parse_algorithm(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_radix(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_float_precision(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_negative_exponent_break(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_invalid_positive_exponent_break(&self) -> bool

const fn check to see if an error is of a specific type.

pub const fn is_success(&self) -> bool

const fn check to see if an error is of a specific type.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

fn backtrace(&self) -> Option<&Backtrace>

🔬 This is a nightly-only experimental API. (backtrace)

Returns a stack backtrace, if available, of where this error occurred.

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

impl Ord for Error

fn cmp(&self, other: &Error) -> Ordering

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<Error> for Error

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl PartialOrd<Error> for Error

fn partial_cmp(&self, other: &Error) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Error

impl Eq for Error

impl StructuralEq for Error

impl StructuralPartialEq for Error