Struct polkadot_node_subsystem::gen::Duration

1.3.0 · source ·
pub struct Duration { /* private fields */ }
Expand description

A Duration type to represent a span of time, typically used for system timeouts.

Each Duration is composed of a whole number of seconds and a fractional part represented in nanoseconds. If the underlying system does not support nanosecond-level precision, APIs binding a system timeout will typically round up the number of nanoseconds.

Durations implement many common traits, including Add, Sub, and other ops traits. It implements Default by returning a zero-length Duration.

Examples

use std::time::Duration;

let five_seconds = Duration::new(5, 0);
let five_seconds_and_five_nanos = five_seconds + Duration::new(0, 5);

assert_eq!(five_seconds_and_five_nanos.as_secs(), 5);
assert_eq!(five_seconds_and_five_nanos.subsec_nanos(), 5);

let ten_millis = Duration::from_millis(10);

Formatting Duration values

Duration intentionally does not have a Display impl, as there are a variety of ways to format spans of time for human readability. Duration provides a Debug impl that shows the full precision of the value.

The Debug output uses the non-ASCII “µs” suffix for microseconds. If your program output may appear in contexts that cannot rely on full Unicode compatibility, you may wish to format Duration objects yourself or use a crate to do so.

Implementations§

source§

impl Duration

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pub const SECOND: Duration = Duration::from_secs(1)

🔬This is a nightly-only experimental API. (duration_constants)

The duration of one second.

Examples
#![feature(duration_constants)]
use std::time::Duration;

assert_eq!(Duration::SECOND, Duration::from_secs(1));
source

pub const MILLISECOND: Duration = Duration::from_millis(1)

🔬This is a nightly-only experimental API. (duration_constants)

The duration of one millisecond.

Examples
#![feature(duration_constants)]
use std::time::Duration;

assert_eq!(Duration::MILLISECOND, Duration::from_millis(1));
source

pub const MICROSECOND: Duration = Duration::from_micros(1)

🔬This is a nightly-only experimental API. (duration_constants)

The duration of one microsecond.

Examples
#![feature(duration_constants)]
use std::time::Duration;

assert_eq!(Duration::MICROSECOND, Duration::from_micros(1));
source

pub const NANOSECOND: Duration = Duration::from_nanos(1)

🔬This is a nightly-only experimental API. (duration_constants)

The duration of one nanosecond.

Examples
#![feature(duration_constants)]
use std::time::Duration;

assert_eq!(Duration::NANOSECOND, Duration::from_nanos(1));
1.53.0 · source

pub const ZERO: Duration = Duration::from_nanos(0)

A duration of zero time.

Examples
use std::time::Duration;

let duration = Duration::ZERO;
assert!(duration.is_zero());
assert_eq!(duration.as_nanos(), 0);
1.53.0 · source

pub const MAX: Duration = Duration::new(u64::MAX, NANOS_PER_SEC - 1)

The maximum duration.

May vary by platform as necessary. Must be able to contain the difference between two instances of Instant or two instances of SystemTime. This constraint gives it a value of about 584,942,417,355 years in practice, which is currently used on all platforms.

Examples
use std::time::Duration;

assert_eq!(Duration::MAX, Duration::new(u64::MAX, 1_000_000_000 - 1));
const: 1.58.0 · source

pub const fn new(secs: u64, nanos: u32) -> Duration

Creates a new Duration from the specified number of whole seconds and additional nanoseconds.

If the number of nanoseconds is greater than 1 billion (the number of nanoseconds in a second), then it will carry over into the seconds provided.

Panics

This constructor will panic if the carry from the nanoseconds overflows the seconds counter.

Examples
use std::time::Duration;

let five_seconds = Duration::new(5, 0);
const: 1.32.0 · source

pub const fn from_secs(secs: u64) -> Duration

Creates a new Duration from the specified number of whole seconds.

Examples
use std::time::Duration;

let duration = Duration::from_secs(5);

assert_eq!(5, duration.as_secs());
assert_eq!(0, duration.subsec_nanos());
const: 1.32.0 · source

pub const fn from_millis(millis: u64) -> Duration

Creates a new Duration from the specified number of milliseconds.

Examples
use std::time::Duration;

let duration = Duration::from_millis(2569);

assert_eq!(2, duration.as_secs());
assert_eq!(569_000_000, duration.subsec_nanos());
1.27.0 (const: 1.32.0) · source

pub const fn from_micros(micros: u64) -> Duration

Creates a new Duration from the specified number of microseconds.

Examples
use std::time::Duration;

let duration = Duration::from_micros(1_000_002);

assert_eq!(1, duration.as_secs());
assert_eq!(2000, duration.subsec_nanos());
1.27.0 (const: 1.32.0) · source

pub const fn from_nanos(nanos: u64) -> Duration

Creates a new Duration from the specified number of nanoseconds.

Examples
use std::time::Duration;

let duration = Duration::from_nanos(1_000_000_123);

assert_eq!(1, duration.as_secs());
assert_eq!(123, duration.subsec_nanos());
1.53.0 (const: 1.53.0) · source

pub const fn is_zero(&self) -> bool

Returns true if this Duration spans no time.

Examples
use std::time::Duration;

assert!(Duration::ZERO.is_zero());
assert!(Duration::new(0, 0).is_zero());
assert!(Duration::from_nanos(0).is_zero());
assert!(Duration::from_secs(0).is_zero());

assert!(!Duration::new(1, 1).is_zero());
assert!(!Duration::from_nanos(1).is_zero());
assert!(!Duration::from_secs(1).is_zero());
const: 1.32.0 · source

pub const fn as_secs(&self) -> u64

Returns the number of whole seconds contained by this Duration.

The returned value does not include the fractional (nanosecond) part of the duration, which can be obtained using subsec_nanos.

Examples
use std::time::Duration;

let duration = Duration::new(5, 730023852);
assert_eq!(duration.as_secs(), 5);

To determine the total number of seconds represented by the Duration including the fractional part, use as_secs_f64 or as_secs_f32

1.27.0 (const: 1.32.0) · source

pub const fn subsec_millis(&self) -> u32

Returns the fractional part of this Duration, in whole milliseconds.

This method does not return the length of the duration when represented by milliseconds. The returned number always represents a fractional portion of a second (i.e., it is less than one thousand).

Examples
use std::time::Duration;

let duration = Duration::from_millis(5432);
assert_eq!(duration.as_secs(), 5);
assert_eq!(duration.subsec_millis(), 432);
1.27.0 (const: 1.32.0) · source

pub const fn subsec_micros(&self) -> u32

Returns the fractional part of this Duration, in whole microseconds.

This method does not return the length of the duration when represented by microseconds. The returned number always represents a fractional portion of a second (i.e., it is less than one million).

Examples
use std::time::Duration;

let duration = Duration::from_micros(1_234_567);
assert_eq!(duration.as_secs(), 1);
assert_eq!(duration.subsec_micros(), 234_567);
const: 1.32.0 · source

pub const fn subsec_nanos(&self) -> u32

Returns the fractional part of this Duration, in nanoseconds.

This method does not return the length of the duration when represented by nanoseconds. The returned number always represents a fractional portion of a second (i.e., it is less than one billion).

Examples
use std::time::Duration;

let duration = Duration::from_millis(5010);
assert_eq!(duration.as_secs(), 5);
assert_eq!(duration.subsec_nanos(), 10_000_000);
1.33.0 (const: 1.33.0) · source

pub const fn as_millis(&self) -> u128

Returns the total number of whole milliseconds contained by this Duration.

Examples
use std::time::Duration;

let duration = Duration::new(5, 730023852);
assert_eq!(duration.as_millis(), 5730);
1.33.0 (const: 1.33.0) · source

pub const fn as_micros(&self) -> u128

Returns the total number of whole microseconds contained by this Duration.

Examples
use std::time::Duration;

let duration = Duration::new(5, 730023852);
assert_eq!(duration.as_micros(), 5730023);
1.33.0 (const: 1.33.0) · source

pub const fn as_nanos(&self) -> u128

Returns the total number of nanoseconds contained by this Duration.

Examples
use std::time::Duration;

let duration = Duration::new(5, 730023852);
assert_eq!(duration.as_nanos(), 5730023852);
1.16.0 (const: 1.58.0) · source

pub const fn checked_add(self, rhs: Duration) -> Option<Duration>

Checked Duration addition. Computes self + other, returning None if overflow occurred.

Examples

Basic usage:

use std::time::Duration;

assert_eq!(Duration::new(0, 0).checked_add(Duration::new(0, 1)), Some(Duration::new(0, 1)));
assert_eq!(Duration::new(1, 0).checked_add(Duration::new(u64::MAX, 0)), None);
1.53.0 (const: 1.58.0) · source

pub const fn saturating_add(self, rhs: Duration) -> Duration

Saturating Duration addition. Computes self + other, returning Duration::MAX if overflow occurred.

Examples
#![feature(duration_constants)]
use std::time::Duration;

assert_eq!(Duration::new(0, 0).saturating_add(Duration::new(0, 1)), Duration::new(0, 1));
assert_eq!(Duration::new(1, 0).saturating_add(Duration::new(u64::MAX, 0)), Duration::MAX);
1.16.0 (const: 1.58.0) · source

pub const fn checked_sub(self, rhs: Duration) -> Option<Duration>

Checked Duration subtraction. Computes self - other, returning None if the result would be negative or if overflow occurred.

Examples

Basic usage:

use std::time::Duration;

assert_eq!(Duration::new(0, 1).checked_sub(Duration::new(0, 0)), Some(Duration::new(0, 1)));
assert_eq!(Duration::new(0, 0).checked_sub(Duration::new(0, 1)), None);
1.53.0 (const: 1.58.0) · source

pub const fn saturating_sub(self, rhs: Duration) -> Duration

Saturating Duration subtraction. Computes self - other, returning Duration::ZERO if the result would be negative or if overflow occurred.

Examples
use std::time::Duration;

assert_eq!(Duration::new(0, 1).saturating_sub(Duration::new(0, 0)), Duration::new(0, 1));
assert_eq!(Duration::new(0, 0).saturating_sub(Duration::new(0, 1)), Duration::ZERO);
1.16.0 (const: 1.58.0) · source

pub const fn checked_mul(self, rhs: u32) -> Option<Duration>

Checked Duration multiplication. Computes self * other, returning None if overflow occurred.

Examples

Basic usage:

use std::time::Duration;

assert_eq!(Duration::new(0, 500_000_001).checked_mul(2), Some(Duration::new(1, 2)));
assert_eq!(Duration::new(u64::MAX - 1, 0).checked_mul(2), None);
1.53.0 (const: 1.58.0) · source

pub const fn saturating_mul(self, rhs: u32) -> Duration

Saturating Duration multiplication. Computes self * other, returning Duration::MAX if overflow occurred.

Examples
#![feature(duration_constants)]
use std::time::Duration;

assert_eq!(Duration::new(0, 500_000_001).saturating_mul(2), Duration::new(1, 2));
assert_eq!(Duration::new(u64::MAX - 1, 0).saturating_mul(2), Duration::MAX);
1.16.0 (const: 1.58.0) · source

pub const fn checked_div(self, rhs: u32) -> Option<Duration>

Checked Duration division. Computes self / other, returning None if other == 0.

Examples

Basic usage:

use std::time::Duration;

assert_eq!(Duration::new(2, 0).checked_div(2), Some(Duration::new(1, 0)));
assert_eq!(Duration::new(1, 0).checked_div(2), Some(Duration::new(0, 500_000_000)));
assert_eq!(Duration::new(2, 0).checked_div(0), None);
1.38.0 (const: unstable) · source

pub fn as_secs_f64(&self) -> f64

Returns the number of seconds contained by this Duration as f64.

The returned value does include the fractional (nanosecond) part of the duration.

Examples
use std::time::Duration;

let dur = Duration::new(2, 700_000_000);
assert_eq!(dur.as_secs_f64(), 2.7);
1.38.0 (const: unstable) · source

pub fn as_secs_f32(&self) -> f32

Returns the number of seconds contained by this Duration as f32.

The returned value does include the fractional (nanosecond) part of the duration.

Examples
use std::time::Duration;

let dur = Duration::new(2, 700_000_000);
assert_eq!(dur.as_secs_f32(), 2.7);
1.38.0 · source

pub fn from_secs_f64(secs: f64) -> Duration

Creates a new Duration from the specified number of seconds represented as f64.

Panics

This constructor will panic if secs is negative, overflows Duration or not finite.

Examples
use std::time::Duration;

let res = Duration::from_secs_f64(0.0);
assert_eq!(res, Duration::new(0, 0));
let res = Duration::from_secs_f64(1e-20);
assert_eq!(res, Duration::new(0, 0));
let res = Duration::from_secs_f64(4.2e-7);
assert_eq!(res, Duration::new(0, 420));
let res = Duration::from_secs_f64(2.7);
assert_eq!(res, Duration::new(2, 700_000_000));
let res = Duration::from_secs_f64(3e10);
assert_eq!(res, Duration::new(30_000_000_000, 0));
// subnormal float
let res = Duration::from_secs_f64(f64::from_bits(1));
assert_eq!(res, Duration::new(0, 0));
// conversion uses rounding
let res = Duration::from_secs_f64(0.999e-9);
assert_eq!(res, Duration::new(0, 1));
1.38.0 · source

pub fn from_secs_f32(secs: f32) -> Duration

Creates a new Duration from the specified number of seconds represented as f32.

Panics

This constructor will panic if secs is negative, overflows Duration or not finite.

Examples
use std::time::Duration;

let res = Duration::from_secs_f32(0.0);
assert_eq!(res, Duration::new(0, 0));
let res = Duration::from_secs_f32(1e-20);
assert_eq!(res, Duration::new(0, 0));
let res = Duration::from_secs_f32(4.2e-7);
assert_eq!(res, Duration::new(0, 420));
let res = Duration::from_secs_f32(2.7);
assert_eq!(res, Duration::new(2, 700_000_048));
let res = Duration::from_secs_f32(3e10);
assert_eq!(res, Duration::new(30_000_001_024, 0));
// subnormal float
let res = Duration::from_secs_f32(f32::from_bits(1));
assert_eq!(res, Duration::new(0, 0));
// conversion uses rounding
let res = Duration::from_secs_f32(0.999e-9);
assert_eq!(res, Duration::new(0, 1));
1.38.0 · source

pub fn mul_f64(self, rhs: f64) -> Duration

Multiplies Duration by f64.

Panics

This method will panic if result is negative, overflows Duration or not finite.

Examples
use std::time::Duration;

let dur = Duration::new(2, 700_000_000);
assert_eq!(dur.mul_f64(3.14), Duration::new(8, 478_000_000));
assert_eq!(dur.mul_f64(3.14e5), Duration::new(847_800, 0));
1.38.0 · source

pub fn mul_f32(self, rhs: f32) -> Duration

Multiplies Duration by f32.

Panics

This method will panic if result is negative, overflows Duration or not finite.

Examples
use std::time::Duration;

let dur = Duration::new(2, 700_000_000);
assert_eq!(dur.mul_f32(3.14), Duration::new(8, 478_000_641));
assert_eq!(dur.mul_f32(3.14e5), Duration::new(847800, 0));
1.38.0 · source

pub fn div_f64(self, rhs: f64) -> Duration

Divide Duration by f64.

Panics

This method will panic if result is negative, overflows Duration or not finite.

Examples
use std::time::Duration;

let dur = Duration::new(2, 700_000_000);
assert_eq!(dur.div_f64(3.14), Duration::new(0, 859_872_611));
assert_eq!(dur.div_f64(3.14e5), Duration::new(0, 8_599));
1.38.0 · source

pub fn div_f32(self, rhs: f32) -> Duration

Divide Duration by f32.

Panics

This method will panic if result is negative, overflows Duration or not finite.

Examples
use std::time::Duration;

let dur = Duration::new(2, 700_000_000);
// note that due to rounding errors result is slightly
// different from 0.859_872_611
assert_eq!(dur.div_f32(3.14), Duration::new(0, 859_872_580));
assert_eq!(dur.div_f32(3.14e5), Duration::new(0, 8_599));
const: unstable · source

pub fn div_duration_f64(self, rhs: Duration) -> f64

🔬This is a nightly-only experimental API. (div_duration)

Divide Duration by Duration and return f64.

Examples
#![feature(div_duration)]
use std::time::Duration;

let dur1 = Duration::new(2, 700_000_000);
let dur2 = Duration::new(5, 400_000_000);
assert_eq!(dur1.div_duration_f64(dur2), 0.5);
const: unstable · source

pub fn div_duration_f32(self, rhs: Duration) -> f32

🔬This is a nightly-only experimental API. (div_duration)

Divide Duration by Duration and return f32.

Examples
#![feature(div_duration)]
use std::time::Duration;

let dur1 = Duration::new(2, 700_000_000);
let dur2 = Duration::new(5, 400_000_000);
assert_eq!(dur1.div_duration_f32(dur2), 0.5);
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impl Duration

1.66.0 · source

pub fn try_from_secs_f32(secs: f32) -> Result<Duration, TryFromFloatSecsError>

The checked version of from_secs_f32.

This constructor will return an Err if secs is negative, overflows Duration or not finite.

Examples
use std::time::Duration;

let res = Duration::try_from_secs_f32(0.0);
assert_eq!(res, Ok(Duration::new(0, 0)));
let res = Duration::try_from_secs_f32(1e-20);
assert_eq!(res, Ok(Duration::new(0, 0)));
let res = Duration::try_from_secs_f32(4.2e-7);
assert_eq!(res, Ok(Duration::new(0, 420)));
let res = Duration::try_from_secs_f32(2.7);
assert_eq!(res, Ok(Duration::new(2, 700_000_048)));
let res = Duration::try_from_secs_f32(3e10);
assert_eq!(res, Ok(Duration::new(30_000_001_024, 0)));
// subnormal float:
let res = Duration::try_from_secs_f32(f32::from_bits(1));
assert_eq!(res, Ok(Duration::new(0, 0)));

let res = Duration::try_from_secs_f32(-5.0);
assert!(res.is_err());
let res = Duration::try_from_secs_f32(f32::NAN);
assert!(res.is_err());
let res = Duration::try_from_secs_f32(2e19);
assert!(res.is_err());

// the conversion uses rounding with tie resolution to even
let res = Duration::try_from_secs_f32(0.999e-9);
assert_eq!(res, Ok(Duration::new(0, 1)));

// this float represents exactly 976562.5e-9
let val = f32::from_bits(0x3A80_0000);
let res = Duration::try_from_secs_f32(val);
assert_eq!(res, Ok(Duration::new(0, 976_562)));

// this float represents exactly 2929687.5e-9
let val = f32::from_bits(0x3B40_0000);
let res = Duration::try_from_secs_f32(val);
assert_eq!(res, Ok(Duration::new(0, 2_929_688)));

// this float represents exactly 1.000_976_562_5
let val = f32::from_bits(0x3F802000);
let res = Duration::try_from_secs_f32(val);
assert_eq!(res, Ok(Duration::new(1, 976_562)));

// this float represents exactly 1.002_929_687_5
let val = f32::from_bits(0x3F806000);
let res = Duration::try_from_secs_f32(val);
assert_eq!(res, Ok(Duration::new(1, 2_929_688)));
1.66.0 · source

pub fn try_from_secs_f64(secs: f64) -> Result<Duration, TryFromFloatSecsError>

The checked version of from_secs_f64.

This constructor will return an Err if secs is negative, overflows Duration or not finite.

Examples
use std::time::Duration;

let res = Duration::try_from_secs_f64(0.0);
assert_eq!(res, Ok(Duration::new(0, 0)));
let res = Duration::try_from_secs_f64(1e-20);
assert_eq!(res, Ok(Duration::new(0, 0)));
let res = Duration::try_from_secs_f64(4.2e-7);
assert_eq!(res, Ok(Duration::new(0, 420)));
let res = Duration::try_from_secs_f64(2.7);
assert_eq!(res, Ok(Duration::new(2, 700_000_000)));
let res = Duration::try_from_secs_f64(3e10);
assert_eq!(res, Ok(Duration::new(30_000_000_000, 0)));
// subnormal float
let res = Duration::try_from_secs_f64(f64::from_bits(1));
assert_eq!(res, Ok(Duration::new(0, 0)));

let res = Duration::try_from_secs_f64(-5.0);
assert!(res.is_err());
let res = Duration::try_from_secs_f64(f64::NAN);
assert!(res.is_err());
let res = Duration::try_from_secs_f64(2e19);
assert!(res.is_err());

// the conversion uses rounding with tie resolution to even
let res = Duration::try_from_secs_f64(0.999e-9);
assert_eq!(res, Ok(Duration::new(0, 1)));
let res = Duration::try_from_secs_f64(0.999_999_999_499);
assert_eq!(res, Ok(Duration::new(0, 999_999_999)));
let res = Duration::try_from_secs_f64(0.999_999_999_501);
assert_eq!(res, Ok(Duration::new(1, 0)));
let res = Duration::try_from_secs_f64(42.999_999_999_499);
assert_eq!(res, Ok(Duration::new(42, 999_999_999)));
let res = Duration::try_from_secs_f64(42.999_999_999_501);
assert_eq!(res, Ok(Duration::new(43, 0)));

// this float represents exactly 976562.5e-9
let val = f64::from_bits(0x3F50_0000_0000_0000);
let res = Duration::try_from_secs_f64(val);
assert_eq!(res, Ok(Duration::new(0, 976_562)));

// this float represents exactly 2929687.5e-9
let val = f64::from_bits(0x3F68_0000_0000_0000);
let res = Duration::try_from_secs_f64(val);
assert_eq!(res, Ok(Duration::new(0, 2_929_688)));

// this float represents exactly 1.000_976_562_5
let val = f64::from_bits(0x3FF0_0400_0000_0000);
let res = Duration::try_from_secs_f64(val);
assert_eq!(res, Ok(Duration::new(1, 976_562)));

// this float represents exactly 1.002_929_687_5
let val = f64::from_bits(0x3_FF00_C000_0000_000);
let res = Duration::try_from_secs_f64(val);
assert_eq!(res, Ok(Duration::new(1, 2_929_688)));

Trait Implementations§

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impl Add<Duration> for Duration

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type Output = Duration

The resulting type after applying the + operator.
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fn add(self, rhs: Duration) -> Duration

Performs the + operation. Read more
1.8.0 · source§

impl Add<Duration> for SystemTime

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fn add(self, dur: Duration) -> SystemTime

Panics

This function may panic if the resulting point in time cannot be represented by the underlying data structure. See SystemTime::checked_add for a version without panic.

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type Output = SystemTime

The resulting type after applying the + operator.
1.9.0 · source§

impl AddAssign<Duration> for Duration

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fn add_assign(&mut self, rhs: Duration)

Performs the += operation. Read more
1.9.0 · source§

impl AddAssign<Duration> for SystemTime

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fn add_assign(&mut self, other: Duration)

Performs the += operation. Read more
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impl Clone for Duration

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fn clone(&self) -> Duration

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
1.27.0 · source§

impl Debug for Duration

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

Formats the value using the given formatter. Read more
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impl Decode for Duration

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fn decode<I>(input: &mut I) -> Result<Duration, Error>where I: Input,

Attempt to deserialise the value from input.
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fn skip<I>(input: &mut I) -> Result<(), Error>where I: Input,

Attempt to skip the encoded value from input. Read more
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fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type. Read more
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impl Default for Duration

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fn default() -> Duration

Returns the “default value” for a type. Read more
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impl<'de> Deserialize<'de> for Duration

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fn deserialize<D>( deserializer: D ) -> Result<Duration, <D as Deserializer<'de>>::Error>where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Div<u32> for Duration

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type Output = Duration

The resulting type after applying the / operator.
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fn div(self, rhs: u32) -> Duration

Performs the / operation. Read more
1.9.0 · source§

impl DivAssign<u32> for Duration

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fn div_assign(&mut self, rhs: u32)

Performs the /= operation. Read more
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impl Encode for Duration

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fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding. Read more
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fn encode(&self) -> Vec<u8, Global>

Convert self to an owned vector.
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fn encode_to<T>(&self, dest: &mut T)where T: Output + ?Sized,

Convert self to a slice and append it to the destination.
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fn using_encoded<R, F>(&self, f: F) -> Rwhere F: FnOnce(&[u8]) -> R,

Convert self to a slice and then invoke the given closure with it.
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fn encoded_size(&self) -> usize

Calculates the encoded size. Read more
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impl From<Duration> for Duration

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fn from(duration_sys: Duration) -> Duration

Converts to this type from the input type.
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impl From<Duration> for Duration

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fn from(duration: Duration) -> Duration

Converts to this type from the input type.
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impl From<Duration> for Timestamp

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fn from(duration: Duration) -> Timestamp

Converts to this type from the input type.
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impl Hash for Duration

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

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl MaxEncodedLen for Duration

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fn max_encoded_len() -> usize

Upper bound, in bytes, of the maximum encoded size of this item.
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impl Mul<u32> for Duration

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type Output = Duration

The resulting type after applying the * operator.
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fn mul(self, rhs: u32) -> Duration

Performs the * operation. Read more
1.9.0 · source§

impl MulAssign<u32> for Duration

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fn mul_assign(&mut self, rhs: u32)

Performs the *= operation. Read more
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impl Ord for Duration

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

This method returns an Ordering between self and other. Read more
1.21.0 · source§

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

Compares and returns the maximum of two values. Read more
1.21.0 · source§

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

Compares and returns the minimum of two values. Read more
1.50.0 · source§

fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval. Read more
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impl PalletError for Duration

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const MAX_ENCODED_SIZE: usize = 12usize

The maximum encoded size for the implementing type. Read more
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impl PartialEq<Duration> for Duration

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

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd<Duration> for Duration

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

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

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

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

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

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

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

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

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

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl SampleUniform for Duration

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type Sampler = UniformDuration

The UniformSampler implementation supporting type X.
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impl SampleUniform for Duration

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type Sampler = UniformDuration

The UniformSampler implementation supporting type X.
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impl Serialize for Duration

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fn serialize<S>( &self, serializer: S ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>where S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl Sub<Duration> for Duration

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type Output = Duration

The resulting type after applying the - operator.
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fn sub(self, rhs: Duration) -> Duration

Performs the - operation. Read more
1.8.0 · source§

impl Sub<Duration> for SystemTime

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type Output = SystemTime

The resulting type after applying the - operator.
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fn sub(self, dur: Duration) -> SystemTime

Performs the - operation. Read more
1.9.0 · source§

impl SubAssign<Duration> for Duration

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fn sub_assign(&mut self, rhs: Duration)

Performs the -= operation. Read more
1.9.0 · source§

impl SubAssign<Duration> for SystemTime

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fn sub_assign(&mut self, other: Duration)

Performs the -= operation. Read more
1.16.0 · source§

impl<'a> Sum<&'a Duration> for Duration

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fn sum<I>(iter: I) -> Durationwhere I: Iterator<Item = &'a Duration>,

Method which takes an iterator and generates Self from the elements by “summing up” the items.
1.16.0 · source§

impl Sum<Duration> for Duration

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fn sum<I>(iter: I) -> Durationwhere I: Iterator<Item = Duration>,

Method which takes an iterator and generates Self from the elements by “summing up” the items.
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impl Copy for Duration

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impl EncodeLike<Duration> for Duration

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impl Eq for Duration

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impl StructuralEq for Duration

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impl StructuralPartialEq for Duration

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Any for Twhere T: Any,

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fn into_any(self: Box<T, Global>) -> Box<dyn Any, Global>

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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

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fn type_name(&self) -> &'static str

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impl<T> AnySync for Twhere T: Any + Send + Sync,

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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send>

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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CallHasher for Twhere T: Hash + ?Sized,

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default fn get_hash<H, B>(value: &H, build_hasher: &B) -> u64where H: Hash + ?Sized, B: BuildHasher,

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impl<T> CheckedConversion for T

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fn checked_from<T>(t: T) -> Option<Self>where Self: TryFrom<T>,

Convert from a value of T into an equivalent instance of Option<Self>. Read more
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fn checked_into<T>(self) -> Option<T>where Self: TryInto<T>,

Consume self to return Some equivalent value of Option<T>. Read more
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impl<T> Clear for Twhere T: Default + Eq + PartialEq<T>,

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fn is_clear(&self) -> bool

True iff no bits are set.
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fn clear() -> T

Return the value of Self that is clear.
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impl<T> Conv for T

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fn conv<T>(self) -> Twhere Self: Into<T>,

Converts self into T using Into<T>. Read more
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impl<T> DecodeAll for Twhere T: Decode,

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fn decode_all(input: &mut &[u8]) -> Result<T, Error>

Decode Self and consume all of the given input data. Read more
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impl<T> DecodeLimit for Twhere T: Decode,

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fn decode_all_with_depth_limit( limit: u32, input: &mut &[u8] ) -> Result<T, Error>

Decode Self and consume all of the given input data. Read more
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fn decode_with_depth_limit<I>(limit: u32, input: &mut I) -> Result<T, Error>where I: Input,

Decode Self with the given maximum recursion depth and advance input by the number of bytes consumed. Read more
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impl<T> DefensiveMax<T> for Twhere T: PartialOrd<T>,

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fn defensive_max(self, other: T) -> T

Returns the maximum and defensively asserts that other is not larger than self. Read more
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fn defensive_strict_max(self, other: T) -> T

Returns the maximum and defensively asserts that other is smaller than self. Read more
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impl<T> DefensiveMin<T> for Twhere T: PartialOrd<T>,

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fn defensive_min(self, other: T) -> T

Returns the minimum and defensively checks that self is not larger than other. Read more
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fn defensive_strict_min(self, other: T) -> T

Returns the minimum and defensively checks that self is smaller than other. Read more
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impl<T> Downcast for Twhere T: Any,

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fn into_any(self: Box<T, Global>) -> Box<dyn Any, Global>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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impl<T> DowncastSync for Twhere T: Any + Send + Sync,

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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.
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impl<T> DynClone for Twhere T: Clone,

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fn __clone_box(&self, _: Private) -> *mut ()

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impl<T> EncodeAs<T> for Twhere T: Encode,

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fn encode_as(&self) -> Vec<u8, Global>

Convert Self into T, then encode T. Read more
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impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<T> FmtForward for T

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fn fmt_binary(self) -> FmtBinary<Self>where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.
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fn fmt_display(self) -> FmtDisplay<Self>where Self: Display,

Causes self to use its Display implementation when Debug-formatted.
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fn fmt_lower_exp(self) -> FmtLowerExp<Self>where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.
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fn fmt_lower_hex(self) -> FmtLowerHex<Self>where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.
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fn fmt_octal(self) -> FmtOctal<Self>where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.
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fn fmt_pointer(self) -> FmtPointer<Self>where Self: Pointer,

Causes self to use its Pointer implementation when Debug-formatted.
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fn fmt_upper_exp(self) -> FmtUpperExp<Self>where Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted.
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fn fmt_upper_hex(self) -> FmtUpperHex<Self>where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.
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fn fmt_list(self) -> FmtList<Self>where &'a Self: for<'a> IntoIterator,

Formats each item in a sequence. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Hashable for Twhere T: Codec,

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fn blake2_128(&self) -> [u8; 16]

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fn blake2_256(&self) -> [u8; 32]

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fn blake2_128_concat(&self) -> Vec<u8, Global>

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fn twox_128(&self) -> [u8; 16]

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fn twox_256(&self) -> [u8; 32]

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fn twox_64_concat(&self) -> Vec<u8, Global>

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fn identity(&self) -> Vec<u8, Global>

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IsType<T> for T

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fn from_ref(t: &T) -> &T

Cast reference.
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fn into_ref(&self) -> &T

Cast reference.
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fn from_mut(t: &mut T) -> &mut T

Cast mutable reference.
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fn into_mut(&mut self) -> &mut T

Cast mutable reference.
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impl<T, Outer> IsWrappedBy<Outer> for Twhere Outer: AsRef<T> + AsMut<T> + From<T>, T: From<Outer>,

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fn from_ref(outer: &Outer) -> &T

Get a reference to the inner from the outer.

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fn from_mut(outer: &mut Outer) -> &mut T

Get a mutable reference to the inner from the outer.

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impl<T> KeyedVec for Twhere T: Codec,

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fn to_keyed_vec(&self, prepend_key: &[u8]) -> Vec<u8, Global>

Return an encoding of Self prepended by given slice.
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impl<T> Pipe for Twhere T: ?Sized,

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fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> Rwhere Self: Sized,

Pipes by value. This is generally the method you want to use. Read more
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fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> Rwhere R: 'a,

Borrows self and passes that borrow into the pipe function. Read more
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fn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> Rwhere R: 'a,

Mutably borrows self and passes that borrow into the pipe function. Read more
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fn pipe_borrow<'a, B, R>(&'a self, func: impl FnOnce(&'a B) -> R) -> Rwhere Self: Borrow<B>, B: 'a + ?Sized, R: 'a,

Borrows self, then passes self.borrow() into the pipe function. Read more
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fn pipe_borrow_mut<'a, B, R>( &'a mut self, func: impl FnOnce(&'a mut B) -> R ) -> Rwhere Self: BorrowMut<B>, B: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.borrow_mut() into the pipe function. Read more
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fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> Rwhere Self: AsRef<U>, U: 'a + ?Sized, R: 'a,

Borrows self, then passes self.as_ref() into the pipe function.
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fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> Rwhere Self: AsMut<U>, U: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.as_mut() into the pipe function.
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fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> Rwhere Self: Deref<Target = T>, T: 'a + ?Sized, R: 'a,

Borrows self, then passes self.deref() into the pipe function.
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fn pipe_deref_mut<'a, T, R>( &'a mut self, func: impl FnOnce(&'a mut T) -> R ) -> Rwhere Self: DerefMut<Target = T> + Deref, T: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.deref_mut() into the pipe function.
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impl<T> Pointable for T

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const ALIGN: usize = mem::align_of::<T>()

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same<T> for T

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type Output = T

Should always be Self
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impl<Borrowed> SampleBorrow<Borrowed> for Borrowedwhere Borrowed: SampleUniform,

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fn borrow(&self) -> &Borrowed

Immutably borrows from an owned value. See Borrow::borrow
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impl<Borrowed> SampleBorrow<Borrowed> for Borrowedwhere Borrowed: SampleUniform,

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fn borrow(&self) -> &Borrowed

Immutably borrows from an owned value. See Borrow::borrow
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impl<T> SaturatedConversion for T

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fn saturated_from<T>(t: T) -> Selfwhere Self: UniqueSaturatedFrom<T>,

Convert from a value of T into an equivalent instance of Self. Read more
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fn saturated_into<T>(self) -> Twhere Self: UniqueSaturatedInto<T>,

Consume self to return an equivalent value of T. Read more
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impl<T> Tap for T

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fn tap(self, func: impl FnOnce(&Self)) -> Self

Immutable access to a value. Read more
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fn tap_mut(self, func: impl FnOnce(&mut Self)) -> Self

Mutable access to a value. Read more
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fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Selfwhere Self: Borrow<B>, B: ?Sized,

Immutable access to the Borrow<B> of a value. Read more
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fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Selfwhere Self: BorrowMut<B>, B: ?Sized,

Mutable access to the BorrowMut<B> of a value. Read more
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fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Selfwhere Self: AsRef<R>, R: ?Sized,

Immutable access to the AsRef<R> view of a value. Read more
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fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Selfwhere Self: AsMut<R>, R: ?Sized,

Mutable access to the AsMut<R> view of a value. Read more
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fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Selfwhere Self: Deref<Target = T>, T: ?Sized,

Immutable access to the Deref::Target of a value. Read more
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fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Selfwhere Self: DerefMut<Target = T> + Deref, T: ?Sized,

Mutable access to the Deref::Target of a value. Read more
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fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self

Calls .tap() only in debug builds, and is erased in release builds.
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fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self

Calls .tap_mut() only in debug builds, and is erased in release builds.
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fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Selfwhere Self: Borrow<B>, B: ?Sized,

Calls .tap_borrow() only in debug builds, and is erased in release builds.
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fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Selfwhere Self: BorrowMut<B>, B: ?Sized,

Calls .tap_borrow_mut() only in debug builds, and is erased in release builds.
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fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Selfwhere Self: AsRef<R>, R: ?Sized,

Calls .tap_ref() only in debug builds, and is erased in release builds.
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fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Selfwhere Self: AsMut<R>, R: ?Sized,

Calls .tap_ref_mut() only in debug builds, and is erased in release builds.
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fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Selfwhere Self: Deref<Target = T>, T: ?Sized,

Calls .tap_deref() only in debug builds, and is erased in release builds.
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fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Selfwhere Self: DerefMut<Target = T> + Deref, T: ?Sized,

Calls .tap_deref_mut() only in debug builds, and is erased in release builds.
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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> TryConv for T

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fn try_conv<T>(self) -> Result<T, Self::Error>where Self: TryInto<T>,

Attempts to convert self into T using TryInto<T>. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<S, T> UncheckedInto<T> for Swhere T: UncheckedFrom<S>,

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fn unchecked_into(self) -> T

The counterpart to unchecked_from.
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impl<T, S> UniqueSaturatedInto<T> for Swhere T: Bounded, S: TryInto<T>,

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fn unique_saturated_into(self) -> T

Consume self to return an equivalent value of T.
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impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<S> Codec for Swhere S: Decode + Encode,

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impl<T> DeserializeOwned for Twhere T: for<'de> Deserialize<'de>,

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impl<T> EncodeLike<&&T> for Twhere T: Encode,

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impl<T> EncodeLike<&T> for Twhere T: Encode,

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impl<T> EncodeLike<&mut T> for Twhere T: Encode,

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impl<T> EncodeLike<Arc<T>> for Twhere T: Encode,

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impl<T> EncodeLike<Box<T, Global>> for Twhere T: Encode,

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impl<'a, T> EncodeLike<Cow<'a, T>> for Twhere T: ToOwned + Encode,

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impl<T> EncodeLike<Rc<T>> for Twhere T: Encode,

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impl<T> ExHashT for Twhere T: Hash + Eq + Debug + Clone + Send + Sync + 'static,

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impl<S> FullCodec for Swhere S: Decode + FullEncode,

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impl<S> FullEncode for Swhere S: Encode + EncodeLike<S>,

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impl<T, Rhs, Output> GroupOps<Rhs, Output> for Twhere T: Add<Rhs, Output = Output> + Sub<Rhs, Output = Output> + AddAssign<Rhs> + SubAssign<Rhs>,

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impl<T> Hash for Twhere T: Send + Sync + Eq + PartialEq<T> + Clone + Default + Debug + Codec + Hash + 'static,

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impl<T> MaybeDebug for Twhere T: Debug,

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impl<T> MaybeDebug for Twhere T: Debug,

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impl<T> MaybeHash for Twhere T: Hash,

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impl<T> MaybeHash for Twhere T: Hash,

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impl<T> MaybeRefUnwindSafe for Twhere T: RefUnwindSafe,

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impl<T> MaybeSend for Twhere T: Send,

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impl<T> MaybeSerialize for Twhere T: Serialize,

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impl<T> MaybeSerializeDeserialize for Twhere T: DeserializeOwned + Serialize,

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impl<T> Member for Twhere T: Send + Sync + Debug + Eq + PartialEq<T> + Clone + 'static,

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impl<T, Rhs, Output> ScalarMul<Rhs, Output> for Twhere T: Mul<Rhs, Output = Output> + MulAssign<Rhs>,

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impl<T> Sequence for Twhere T: Eq + Hash,