Enum clippy_utils::higher::IfLetOrMatch

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pub enum IfLetOrMatch<'hir> {
    Match(&'hir Expr<'hir>, &'hir [Arm<'hir>], MatchSource),
    IfLet(&'hir Expr<'hir>, &'hir Pat<'hir>, &'hir Expr<'hir>, Option<&'hir Expr<'hir>>, Span),
}
Expand description

An if let or match expression. Useful for lints that trigger on one or the other.

Variants§

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Match(&'hir Expr<'hir>, &'hir [Arm<'hir>], MatchSource)

Any match expression

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IfLet(&'hir Expr<'hir>, &'hir Pat<'hir>, &'hir Expr<'hir>, Option<&'hir Expr<'hir>>, Span)

scrutinee, pattern, then block, else block

Tuple Fields

§0: &'hir Expr<'hir>
§1: &'hir Pat<'hir>
§2: &'hir Expr<'hir>
§3: Option<&'hir Expr<'hir>>
§4: Span

if let PAT = EXPR ^^^^^^^^^^^^^^

Implementations§

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impl<'hir> IfLetOrMatch<'hir>

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pub fn parse(cx: &LateContext<'_>, expr: &Expr<'hir>) -> Option<Self>

Parses an if let or match expression

Trait Implementations§

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impl<'hir> Debug for IfLetOrMatch<'hir>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<'hir> Freeze for IfLetOrMatch<'hir>

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impl<'hir> RefUnwindSafe for IfLetOrMatch<'hir>

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impl<'hir> Send for IfLetOrMatch<'hir>

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impl<'hir> Sync for IfLetOrMatch<'hir>

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impl<'hir> Unpin for IfLetOrMatch<'hir>

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impl<'hir> UnwindSafe for IfLetOrMatch<'hir>

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> 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, 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: 48 bytes

Size for each variant:

  • Match: 32 bytes
  • IfLet: 40 bytes