pub enum StackPopCleanup {
    Goto {
        ret: Option<BasicBlock>,
        unwind: StackPopUnwind,
    },
    Root {
        cleanup: bool,
    },
}

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Goto

Fields

Jump to the next block in the caller, or cause UB if None (that’s a function that may never return). Also store layout of return place so we can validate it at that layout. ret stores the block we jump to on a normal return, while unwind stores the block used for cleanup during unwinding.

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Root

Fields

§cleanup: bool

The root frame of the stack: nowhere else to jump to. cleanup says whether locals are deallocated. Static computation wants them leaked to intern what they need (and just throw away the entire ecx when it is done).

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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fn borrow(&self) -> &T

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Returns the argument unchanged.

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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 Twhere
    T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

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Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere
    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 Twhere
    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.
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impl<V, T> VZip<V> for Twhere
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fn vzip(self) -> V

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

Size for each variant:

  • Goto: 8 bytes
  • Root: 1 byte