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Extra

Struct Extra 

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pub struct Extra(/* private fields */);
Expand description

Werkzeugspezifische Beigabe an einem Finding oder RuleRun. Nie serialisiert.

use a11y_report::{Extra, Finding};

struct Screenshot(Vec<u8>);

let f = Finding::fail("images/alt-missing", "kein alt")
    .with_extra(Screenshot(vec![0x89, 0x50, 0x4e, 0x47]));

assert_eq!(f.extra.get::<Screenshot>().map(|s| s.0.len()), Some(4));
// Eine andere Sorte liegt nicht darin.
assert!(f.extra.get::<String>().is_none());

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impl Extra

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pub fn none() -> Self

Leer — der Normalfall.

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pub fn new<T: Any + Send + Sync>(value: T) -> Self

Legt einen Wert ab. Ein bereits vorhandener wird ersetzt; der Slot hält genau eine Sorte. Wer mehreres anhängen will, legt eine eigene Struktur hinein.

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pub fn get<T: Any + Send + Sync>(&self) -> Option<&T>

Holt den Wert zurück, wenn er von der erwarteten Sorte ist.

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pub fn is_empty(&self) -> bool

Trait Implementations§

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impl Clone for Extra

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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 Extra

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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 Extra

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fn default() -> Self

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

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impl PartialEq for Extra

Beigaben zählen nicht zur Identität eines Befunds.

Sonst wären zwei inhaltlich gleiche Befunde ungleich, nur weil an einem ein Screenshot hängt — und Vergleiche in Tests und beim Zusammenführen von Läufen würden an etwas scheitern, das gar nicht Teil der Aussage ist.

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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

Auto Trait Implementations§

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impl !RefUnwindSafe for Extra

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impl !UnwindSafe for Extra

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impl Freeze for Extra

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impl Send for Extra

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impl Sync for Extra

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impl Unpin for Extra

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impl UnsafeUnpin for Extra

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<T, U> Into<U> 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> 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<U> 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<U> for T
where 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.