Struct FormatDescriptionV3 

pub struct FormatDescriptionV3<'a> {
    pub(crate) inner: FormatDescriptionV3Inner<'a>,
    pub(crate) max_bytes_needed: usize,
}

A complete description of how to format and parse a type.

Both for forwards compatibility and to enable optimizations, this type is deliberately opaque and cannot be constructed by users of the crate. Instead, it is returned by the format_description! macro (when version=3 is used) as well as the parse_borrowed and parse_owned methods.

Fields

inner: FormatDescriptionV3Inner<'a>

The inner enum that controls all business logic.

max_bytes_needed: usize

The maximum number of bytes that are needed to format any value using this format description.

Implementations

impl FormatDescriptionV3<'_>

pub fn to_owned(self) -> FormatDescriptionV3<'static>

Convert the format description to an owned version, enabling it to be stored without regard for lifetime.

Trait Implementations

impl<'a> Clone for FormatDescriptionV3<'a>

fn clone(&self) -> FormatDescriptionV3<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl ComputeMetadata for FormatDescriptionV3<'_>

fn compute_metadata(&self, _: PrivateMethod) -> Metadata

Compute the metadata for a format description.

impl Debug for FormatDescriptionV3<'_>

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

Formats the value using the given formatter.

impl Sealed for FormatDescriptionV3<'_>

fn format_into<V>( &self, output: &mut (impl Write + ?Sized), value: &V, state: &mut V::State, _: PrivateMethod, ) -> Result<usize, Format>

where V: ComponentProvider,

Format the item into the provided output, returning the number of bytes written.

fn format<V>( &self, value: &V, state: &mut V::State, _: PrivateMethod, ) -> Result<String, Format>

where V: ComponentProvider,

Format the item directly to a String.

impl Sealed for FormatDescriptionV3<'_>

fn parse_into<'a>( &self, input: &'a [u8], parsed: &mut Parsed, _: PrivateMethod, ) -> Result<&'a [u8], Parse>

Parse the item into the provided Parsed struct.

fn parse_internal( &self, input: &[u8], defaults: Option<Parsed>, _: PrivateMethod, ) -> Result<Parsed, Parse>

Parse the items into a Parsed struct, using the provided defaults for any components that are not present in the input.

fn parse_date( &self, input: &[u8], defaults: Option<Parsed>, _: PrivateMethod, ) -> Result<Date, Parse>

Parse a Date from the format description.

fn parse_time( &self, input: &[u8], defaults: Option<Parsed>, _: PrivateMethod, ) -> Result<Time, Parse>

Parse a Time from the format description.

fn parse_offset( &self, input: &[u8], defaults: Option<Parsed>, _: PrivateMethod, ) -> Result<UtcOffset, Parse>

Parse a UtcOffset from the format description.

fn parse_primitive_date_time( &self, input: &[u8], defaults: Option<Parsed>, _: PrivateMethod, ) -> Result<PrimitiveDateTime, Parse>

Parse a PrimitiveDateTime from the format description.

fn parse_utc_date_time( &self, input: &[u8], defaults: Option<Parsed>, _: PrivateMethod, ) -> Result<UtcDateTime, Parse>

Parse a UtcDateTime from the format description.

fn parse_offset_date_time( &self, input: &[u8], defaults: Option<Parsed>, _: PrivateMethod, ) -> Result<OffsetDateTime, Parse>

Parse a OffsetDateTime from the format description.

fn parse_timestamp( &self, input: &[u8], defaults: Option<Parsed>, _: PrivateMethod, ) -> Result<Timestamp, Parse>

Parse a Timestamp from the format description.

impl Formattable for FormatDescriptionV3<'_>

impl Parsable for FormatDescriptionV3<'_>