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## If

# Struct If

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    pub struct If<'hir> {
        pub cond: &'hir Expr<'hir>,
        pub then: &'hir Expr<'hir>,
        pub else: Option<&'hir Expr<'hir>>,
    }

Expand description

An `if` expression without `let`

## Fields§

§`cond: &'hir Expr<'hir>`

`if` condition

§`then: &'hir Expr<'hir>`

`if` then expression

§`else: Option<&'hir Expr<'hir>>`

`else` expression

## Implementations§

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### impl<'hir> If<'hir>

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#### pub const fn hir(expr: &Expr<'hir>) -> Option<Self>

Parses an `if` expression without `let`

## Auto Trait Implementations§

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### impl<'hir> Freeze for If<'hir>

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### impl<'hir> RefUnwindSafe for If<'hir>

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### impl<'hir> Send for If<'hir>

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### impl<'hir> Sync for If<'hir>

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### impl<'hir> Unpin for If<'hir>

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### impl<'hir> UnsafeUnpin for If<'hir>

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### impl<'hir> UnwindSafe for If<'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: 24 bytes