Enum VarSeq

pub enum VarSeq {
    Seq1(u8),
    Seq2(u16),
    Seq4(u32),
}

A variably sized sequence number

NOTE: We use the standard PartialEq here, as we DO NOT treat sequence numbers of different lengths as equivalent.

We DO NOT impl Serialize/Deserialize for this type because we use non-postcard-compatible format (externally tagged)

Variants

Seq1(u8)

A one byte sequence number

Seq2(u16)

A two byte sequence number

Seq4(u32)

A four byte sequence number

Implementations

impl VarSeq

pub fn resize(&mut self, kind: VarSeqKind)

Resize (up or down) to the requested kind.

When increasing size, the number is left-extended, e.g. 0x42u8 becomes 0x0000_0042u32 when resizing 1 -> 4.

When decreasing size, the number is truncated, e.g. 0xABCD_EF12u32 becomes 0x12u8 when resizing 4 -> 1.

Trait Implementations

impl Clone for VarSeq

fn clone(&self) -> VarSeq

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for VarSeq

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

Formats the value using the given formatter.

impl From<u16> for VarSeq

fn from(value: u16) -> Self

Converts to this type from the input type.

impl From<u32> for VarSeq

fn from(value: u32) -> Self

Converts to this type from the input type.

impl From<u8> for VarSeq

fn from(value: u8) -> Self

Converts to this type from the input type.

impl Into<u16> for VarSeq

fn into(self) -> u16

Converts this type into the (usually inferred) input type.

impl Into<u32> for VarSeq

fn into(self) -> u32

Converts this type into the (usually inferred) input type.

impl Into<u8> for VarSeq

fn into(self) -> u8

Converts this type into the (usually inferred) input type.

impl PartialEq for VarSeq

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for VarSeq