Struct InfoRecord

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

Expand description

Denotes an open metadata record.

Keys are canonicalized by lexical order. Field order is intentionally not part of metadata equality.

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impl InfoRecord

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pub fn insert( &mut self, key: impl Into<String>, value: impl Into<InfoValue>, ) -> Option<InfoValue>

Inserts a field and returns the previously denoted value, if any.

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pub fn get(&self, key: &str) -> Option<&InfoValue>

Observes one field without exposing the record representation.

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pub fn is_empty(&self) -> bool

Observes whether the record contains no fields.

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pub fn len(&self) -> usize

Observes the number of fields in the record.

Trait Implementations§

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impl Clone for InfoRecord

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

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impl Debug for InfoRecord

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

Formats the value using the given formatter. Read more

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impl Default for InfoRecord

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fn default() -> Self

Returns the “default value” for a type. Read more

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impl From<InfoRecord> for InfoValue

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fn from(value: InfoRecord) -> Self

Converts to this type from the input type.

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impl PartialEq for InfoRecord

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

Equality operator ==. Read more

1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more

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impl StructuralPartialEq for InfoRecord

Auto Trait Implementations§

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impl RefUnwindSafe for InfoRecord

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impl UnsafeUnpin for InfoRecord

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impl UnwindSafe for InfoRecord

Blanket Implementations§

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impl<T> Any for T
where 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> Borrow<T> for T
where 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 T
where 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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

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

Performs copy-assignment from self to dest. 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<This> GaugeLaws<This> for This

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fn gauge_laws(&self) -> Result<(), Error>

Checks that a gauge states a share without claiming more resolution than it has.

The laws checked are:

a gauge occupies its stated width whatever share it states;
no share is stated as filled before it is reached, and none is stated twice;
nothing stated is nothing filled, and everything stated fills the whole track;
the stated text occupies exactly one cell per counted cell.

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Returns the first violated law.

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impl<T, U> Into for T
where 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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impl<This> IntoExt<This> for This

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fn to<R>(self) -> R
where This: Into<R>,

A version of Into::into function that can be used to explicitly specify the target conversion type.

use alux_sdk::*;
// `Into` requires context to infer the type,
let _: i64 = Into::into(42_i8);
// The opposite `From` requires context to infer the type,
let _: i64 = From::from(42_i8);
// `.to()` can be used in the same way as a postfix function (the same as `.into()`),
let _: i64 = 42_i8.to();
// but also with the type specified explicitly.
let _ = 42_i8.to::<i64>();
// Especially useful to chain multiple conversions inline.
let _: i64 = 42_i8.to::<i16>().to::<i32>().into();

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impl<This> IntoIteratorExt<This> for This

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fn try_collect_vec<T, E>(self) -> Result<Vec<T>, E>
where This: Iterator<Item = Result<T, E>>,

A variant of the try_collect and collect_vec combined function from the Itertools library. The materialized value is a Vec inside a Result object.

Returns the first error without collecting later values.

use alux_sdk::*;

let values = [Ok::<_, &str>(1), Ok(2), Ok(3)]
    .into_iter()
    .try_collect_vec();

assert_eq!(values, Ok(vec![1, 2, 3]));

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fn collect_exact<T>(self, n: usize) -> Option<Vec<T>>
where This: Iterator<Item = T>,

Takes exactly n elements from the iterator.

Returns Some(Vec<T>) if the iterator yields exactly n elements, otherwise returns None.

use alux_sdk::*;

let v = [1, 2, 3];

assert_eq!(v.iter().copied().collect_exact(3), Some(vec![1, 2, 3]));
assert_eq!(v.iter().copied().collect_exact(4), None);
assert_eq!(v.iter().copied().collect_exact(2), None);

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fn try_unzip<A, B, E>(self) -> Result<(Vec<A>, Vec), E>
where This: IntoIterator<Item = Result<(A, B), E>>,

Efficiently splits an iterator of Result<(A, B), E> into two Vecs, short-circuiting on error.

Consumes the iterator, collecting all A elements into one vector and all B elements into another, without first allocating an intermediate vector of tuples. Returns the tuple (Vec<A>, Vec) on success, or the first error encountered.

use alux_sdk::*;

let input = vec![Ok((1, "x")), Ok((2, "y"))];
let (xs, ys) = input.try_unzip::<_, _, ()>().unwrap();

assert_eq!(xs, vec![1, 2]);
assert_eq!(ys, vec!["x", "y"]);

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impl<T> ToOwned for T
where 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, U> TryFrom for T
where U: Into<T>,

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type Error = !

The type returned in the event of a conversion error.

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fn try_from(value: U) -> Result<T, !>

Performs the conversion.

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impl<T, U> TryInto for T
where U: TryFrom<T>,

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type Error = >::Error

The type returned in the event of a conversion error.

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fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

InfoRecord

Struct InfoRecord Copy item path

Implementations§

impl InfoRecord

pub fn insert( &mut self, key: impl Into<String>, value: impl Into<InfoValue>, ) -> Option<InfoValue>

pub fn get(&self, key: &str) -> Option<&InfoValue>

pub fn is_empty(&self) -> bool

pub fn len(&self) -> usize

Trait Implementations§

impl Clone for InfoRecord

fn clone(&self) -> Self

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

impl Debug for InfoRecord

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

impl Default for InfoRecord

fn default() -> Self

impl From<InfoRecord> for InfoValue

fn from(value: InfoRecord) -> Self

impl PartialEq for InfoRecord

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

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

impl StructuralPartialEq for InfoRecord

Auto Trait Implementations§

impl Freeze for InfoRecord

impl RefUnwindSafe for InfoRecord

impl Send for InfoRecord

impl Sync for InfoRecord

impl Unpin for InfoRecord

impl UnsafeUnpin for InfoRecord

impl UnwindSafe for InfoRecord

Blanket Implementations§

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> CloneToUninit for Twhere T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

impl<T> From<T> for T

fn from(t: T) -> T

impl<This> GaugeLaws<This> for This

fn gauge_laws(&self) -> Result<(), Error>

§Errors

impl<T, U> Into<U> for Twhere U: From<T>,

fn into(self) -> U

impl<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘwhere F: FnOnce(&Self) -> bool,

impl<This> IntoExt<This> for This

fn to<R>(self) -> Rwhere This: Into<R>,

impl<This> IntoIteratorExt<This> for This

fn try_collect_vec<T, E>(self) -> Result<Vec<T>, E>where This: Iterator<Item = Result<T, E>>,

fn collect_exact<T>(self, n: usize) -> Option<Vec<T>>where This: Iterator<Item = T>,

fn try_unzip<A, B, E>(self) -> Result<(Vec<A>, Vec<B>), E>where This: IntoIterator<Item = Result<(A, B), E>>,

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = !

fn try_from(value: U) -> Result<T, !>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Struct InfoRecord

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

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

impl<T> BorrowMut<T> for T
where T: ?Sized,

impl<T> CloneToUninit for T
where T: Clone,

impl<T, U> Into<U> for T
where U: From<T>,

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

fn to<R>(self) -> R
where This: Into<R>,

fn try_collect_vec<T, E>(self) -> Result<Vec<T>, E>
where This: Iterator<Item = Result<T, E>>,

fn collect_exact<T>(self, n: usize) -> Option<Vec<T>>
where This: Iterator<Item = T>,

fn try_unzip<A, B, E>(self) -> Result<(Vec<A>, Vec<B>), E>
where This: IntoIterator<Item = Result<(A, B), E>>,

impl<T> ToOwned for T
where T: Clone,

impl<T, U> TryFrom<U> for T
where U: Into<T>,

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,