结构体 VarInt 

pub struct VarInt(/* private fields */);

一个小于 2^62 的整数

此类型的值适合编码为 QUIC 可变长整数。

实现

impl VarInt

pub const MAX: VarInt

可表示的最大值

pub const MAX_SIZE: usize = 8

编码后的最大长度

pub const fn from_u32(x: u32) -> VarInt

以不会失败的方式构造一个 VarInt

pub fn from_u64(x: u64) -> Result<VarInt, VarIntBoundsExceeded>

当且仅当 x < 2^62 时成功

pub const unsafe fn from_u64_unchecked(x: u64) -> VarInt

在不检查取值范围的情况下构造一个 VarInt

安全性

x 必须小于 2^62。

pub const fn into_inner(self) -> u64

取出底层整数值

trait 实现

impl Clone for VarInt

fn clone(&self) -> VarInt

返回值的副本。 更多信息

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

Performs copy-assignment from source. 更多信息

impl Codec for VarInt

fn decode<B>(r: &mut B) -> Result<VarInt, UnexpectedEnd>

where B: Buf,

如果缓冲区足够大，则从提供的缓冲区解码一个 Self

fn encode<B>(&self, w: &mut B)

where B: BufMut,

将 self 的编码追加到提供的缓冲区

impl Debug for VarInt

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

使用给定的格式化器格式化此值。 更多信息

impl Default for VarInt

fn default() -> VarInt

Returns the “default value” for a type. 更多信息

impl Display for VarInt

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

使用给定的格式化器格式化此值。 更多信息

impl From<StreamId> for VarInt

fn from(x: StreamId) -> VarInt

从输入类型转换为此类型。

impl From<VarInt> for IdleTimeout

fn from(inner: VarInt) -> IdleTimeout

从输入类型转换为此类型。

impl From<VarInt> for StreamId

fn from(v: VarInt) -> StreamId

从输入类型转换为此类型。

impl From<u16> for VarInt

fn from(x: u16) -> VarInt

从输入类型转换为此类型。

impl From<u32> for VarInt

fn from(x: u32) -> VarInt

从输入类型转换为此类型。

impl From<u8> for VarInt

fn from(x: u8) -> VarInt

从输入类型转换为此类型。

impl Hash for VarInt

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher. 更多信息

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. 更多信息

impl Ord for VarInt

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

This method returns an Ordering between self and other. 更多信息

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

where Self: Sized,

Compares and returns the maximum of two values. 更多信息

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

where Self: Sized,

Compares and returns the minimum of two values. 更多信息

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

where Self: Sized,

Restrict a value to a certain interval. 更多信息

impl PartialEq for VarInt

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

测试 self 与 other 值是否相等，供 == 运算符使用。

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 PartialOrd for VarInt

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

若存在，此方法返回 self 与 other 值之间的排序关系。 更多信息

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

测试小于（针对 self 与 other），供 < 运算符使用。 更多信息

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

Tests less than or equal to (for self and other) and is used by the <= operator. 更多信息

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

Tests greater than (for self and other) and is used by the > operator. 更多信息

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

Tests greater than or equal to (for self and other) and is used by the >= operator. 更多信息

impl TryFrom<u128> for VarInt

fn try_from(x: u128) -> Result<VarInt, VarIntBoundsExceeded>

当且仅当 x < 2^62 时成功

type Error = VarIntBoundsExceeded

The type returned in the event of a conversion error.

impl TryFrom<u64> for VarInt

fn try_from(x: u64) -> Result<VarInt, VarIntBoundsExceeded>

当且仅当 x < 2^62 时成功

type Error = VarIntBoundsExceeded

The type returned in the event of a conversion error.

impl TryFrom<usize> for VarInt

fn try_from(x: usize) -> Result<VarInt, VarIntBoundsExceeded>

当且仅当 x < 2^62 时成功

type Error = VarIntBoundsExceeded

The type returned in the event of a conversion error.

impl Copy for VarInt

impl Eq for VarInt

impl StructuralPartialEq for VarInt