## FormatArgsStorage

# Struct FormatArgsStorage

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    pub struct FormatArgsStorage(Arc<OnceLock<FxHashMap<Span, FormatArgs>>>);

Expand description

Stores AST `FormatArgs` nodes for use in late lint passes, as they are in a desugared form in the HIR

## Tuple Fields§

§`0: Arc<OnceLock<FxHashMap<Span, FormatArgs>>>`

## Implementations§

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### impl FormatArgsStorage

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#### pub fn get( &self, cx: &LateContext<'_>, start: &Expr<'_>, expn_id: ExpnId, ) -> Option<&FormatArgs>

Returns an AST `FormatArgs` node if a `format_args` expansion is found as a descendant of `expn_id`

See also `find_format_arg_expr`

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#### pub fn set(&self, format_args: FxHashMap<Span, FormatArgs>)

Should only be called by `FormatArgsCollector`

## Trait Implementations§

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### impl Clone for FormatArgsStorage

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#### fn clone(&self) -> FormatArgsStorage

Returns a duplicate of the value. Read more
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#### fn clone_from(&mut self, source: &Self)

Performs copy-assignment from `source`. Read more
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### impl Default for FormatArgsStorage

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#### fn default() -> FormatArgsStorage

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

## Auto Trait Implementations§

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### impl Freeze for FormatArgsStorage

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### impl RefUnwindSafe for FormatArgsStorage

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### impl Send for FormatArgsStorage

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### impl Sync for FormatArgsStorage

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### impl Unpin for FormatArgsStorage

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### impl UnwindSafe for FormatArgsStorage

## 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> 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<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 = 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 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.

## Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain `repr(...)` attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 8 bytes