Struct GreatestDifferenceHeader 

pub struct GreatestDifferenceHeader(pub u8);

A bitset encoding which fields are present in the GreatestDifference pattern list and their range structure.

Date and time fields reuse the same bits (0-7) because they are stored in separate range pattern collections (date vs time).

Each of the 4 fields uses 2 bits to encode its RangeStructure, going from smallest field to largest:

• Bits 0-1: Field 0 (Day/Minute)
• Bits 2-3: Field 1 (Month/Hour)
• Bits 4-5: Field 2 (Year/Flexible Day Period)
• Bits 6-7: Field 3 (Era/Day Period)

Tuple Fields

0: u8

Implementations

impl GreatestDifferenceHeader

pub const fn new(val: u8) -> Self

Creates a new GreatestDifferenceHeader from a u8 value.

pub const fn get_state(self, field_idx: u8) -> RangeStructure

Get the range structure for a specific field index (0-3).

pub fn set_state(&mut self, field_idx: u8, state: RangeStructure)

Set the range structure for a specific field index (0-3). Used during datagen.

pub const fn is_date_field_present( self, field: DateGreatestDifferenceField, ) -> bool

Returns whether the given date field is present in this header.

pub const fn is_time_field_present( self, field: TimeGreatestDifferenceField, ) -> bool

Returns whether the given time field is present in this header.

pub const fn get_pattern_index(self, field_idx: u8) -> usize

Calculate the starting index in the flat patterns list for a given field index (0-3).

pub const fn total_patterns(self) -> usize

Calculate the total number of patterns stored under this header.

Trait Implementations

impl AsULE for GreatestDifferenceHeader

type ULE = GreatestDifferenceHeaderULE

The ULE type corresponding to Self.

fn to_unaligned(self) -> Self::ULE

Converts from Self to Self::ULE.

fn from_unaligned(unaligned: Self::ULE) -> Self

Converts from Self::ULE to Self.

impl Bake for GreatestDifferenceHeader

fn bake(&self, env: &CrateEnv) -> TokenStream

Returns a TokenStream that would evaluate to self.

impl BakeSize for GreatestDifferenceHeader

fn borrows_size(&self) -> usize

Returns the size

impl Clone for GreatestDifferenceHeader

fn clone(&self) -> GreatestDifferenceHeader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for GreatestDifferenceHeader

impl Debug for GreatestDifferenceHeader

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

Formats the value using the given formatter.

impl Default for GreatestDifferenceHeader

fn default() -> GreatestDifferenceHeader

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for GreatestDifferenceHeader

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for GreatestDifferenceHeader

impl PartialEq for GreatestDifferenceHeader

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for GreatestDifferenceHeader

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for GreatestDifferenceHeader

impl<'a> ZeroMapKV<'a> for GreatestDifferenceHeader

type Container = ZeroVec<'a, GreatestDifferenceHeader>

The container that can be used with this type: ZeroVec or VarZeroVec.

type Slice = ZeroSlice<GreatestDifferenceHeader>

type GetType = GreatestDifferenceHeaderULE

The type produced by Container::get()

type OwnedType = GreatestDifferenceHeader

The type produced by Container::replace() and Container::remove(), also used during deserialization. If Self is human readable serialized, deserializing to Self::OwnedType should produce the same value once passed through Self::owned_as_self()