Enum ParseMoneyError 

#[non_exhaustive]
pub enum ParseMoneyError {
    MissingCurrency {
        text: String,
        at: Range<usize>,
    },
    UnknownCurrency {
        text: String,
        token: String,
        at: Range<usize>,
    },
    ConflictingCurrencies {
        text: String,
        first: Range<usize>,
        second: Range<usize>,
    },
    InvalidAmount {
        text: String,
        at: Range<usize>,
    },
}

An error from reading a monetary amount from text.

Every variant keeps the text the Parser read and points into it by byte range. The ranges count from the start of that text, leading whitespace included, so they index it as it was handed in.

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.

MissingCurrency

The text named no currency, and the Parser assumes none.

Fields

text: String

The text the Parser read.

at: Range<usize>

Covers the text without its surrounding whitespace.

UnknownCurrency

The text named a currency that matches no ISO code and no symbol of the currency that applies.

Fields

text: String

The text the Parser read.

token: String

The part that matched nothing.

at: Range<usize>

Covers token.

ConflictingCurrencies

The text named two different currencies.

Fields

text: String

The text the Parser read.

first: Range<usize>

Covers the currency written first.

second: Range<usize>

Covers the currency written second.

InvalidAmount

The digits are missing, malformed, or too large for a Decimal.

Fields

text: String

The text the Parser read.

at: Range<usize>

Covers the character at fault. Covers every digit when the amount is too large, and the text without its surrounding whitespace when the text holds no digits.

Implementations

impl ParseMoneyError

pub fn text(&self) -> &str

The text the Parser read.

Example

use lucre::Money;

let error = "  1.50 ZZZ".parse::<Money>().unwrap_err();

assert_eq!(error.text(), "  1.50 ZZZ");
assert_eq!(&error.text()[error.span()], "ZZZ");

pub fn span(&self) -> Range<usize>

The byte range the error points at.

ConflictingCurrencies names two currencies. This returns the first of them.

Example

use lucre::Money;

let error = "1.50 ZZZ".parse::<Money>().unwrap_err();

assert_eq!(error.span(), 5..8);

Trait Implementations

impl Clone for ParseMoneyError

fn clone(&self) -> ParseMoneyError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParseMoneyError

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

Formats the value using the given formatter.

impl Diagnostic for ParseMoneyError

fn code(&self) -> Option<Box<dyn Display + '_>>

Unique diagnostic code that can be used to look up more information about this Diagnostic. Ideally also globally unique, and documented in the toplevel crate’s documentation for easy searching. Rust path format (foo::bar::baz) is recommended, but more classic codes like E0123 or enums will work just fine.

fn help(&self) -> Option<Box<dyn Display + '_>>

Additional help text related to this Diagnostic. Do you have any advice for the poor soul who’s just run into this issue?

fn labels(&self) -> Option<Box<dyn Iterator<Item = LabeledSpan> + '_>>

Labels to apply to this Diagnostic’s Diagnostic::source_code

fn source_code(&self) -> Option<&dyn SourceCode>

Source code to apply this Diagnostic’s Diagnostic::labels to.

fn url(&self) -> Option<Box<dyn Display + '_>>

URL to visit for a more detailed explanation/help about this Diagnostic.

fn severity(&self) -> Option<Severity>

Diagnostic severity. This may be used by ReportHandlers to change the display format of this diagnostic.

fn related<'a>( &'a self, ) -> Option<Box<dyn Iterator<Item = &'a dyn Diagnostic> + 'a>>

Additional related Diagnostics.

fn diagnostic_source(&self) -> Option<&dyn Diagnostic>

The cause of the error.

impl Display for ParseMoneyError

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

Formats the value using the given formatter.

impl Eq for ParseMoneyError

impl Error for ParseMoneyError

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 ParseMoneyError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ParseMoneyError