Enum rustc::mir::Rvalue [] [src]

pub enum Rvalue<'tcx> {
    Use(Operand<'tcx>),
    Repeat(Operand<'tcx>, ConstUsize),
    Ref(Region<'tcx>, BorrowKindLvalue<'tcx>),
    Len(Lvalue<'tcx>),
    Cast(CastKindOperand<'tcx>, Ty<'tcx>),
    BinaryOp(BinOpOperand<'tcx>, Operand<'tcx>),
    CheckedBinaryOp(BinOpOperand<'tcx>, Operand<'tcx>),
    NullaryOp(NullOpTy<'tcx>),
    UnaryOp(UnOpOperand<'tcx>),
    Discriminant(Lvalue<'tcx>),
    Aggregate(Box<AggregateKind<'tcx>>, Vec<Operand<'tcx>>),
}
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Rvalues

Variants

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x (either a move or copy, depending on type of x)

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[x; 32]

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&x or &mut x

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length of a [X] or [X;n] value

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🔬 This is a nightly-only experimental API. (rustc_private)

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🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

🔬 This is a nightly-only experimental API. (rustc_private)

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Read the discriminant of an ADT.

Undefined (i.e. no effort is made to make it defined, but there’s no reason why it cannot be defined to return, say, a 0) if ADT is not an enum.

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Create an aggregate value, like a tuple or struct. This is only needed because we want to distinguish dest = Foo { x: ..., y: ... } from dest.x = ...; dest.y = ...; in the case that Foo has a destructor. These rvalues can be optimized away after type-checking and before lowering.

Methods

impl<'tcx> Rvalue<'tcx>
[src]

[src]

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[src]

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Returns whether this rvalue is deeply initialized (most rvalues) or whether its only shallowly initialized (Rvalue::Box).

Trait Implementations

impl<'gcx> HashStable<StableHashingContext<'gcx>> for Rvalue<'gcx>
[src]

[src]

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impl<'tcx> Clone for Rvalue<'tcx>
[src]

[src]

Returns a copy of the value. Read more

1.0.0
[src]

Performs copy-assignment from source. Read more

impl<'tcx> Encodable for Rvalue<'tcx>
[src]

[src]

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impl<'tcx> Decodable for Rvalue<'tcx>
[src]

[src]

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impl<'tcx> Debug for Rvalue<'tcx>
[src]

[src]

Formats the value using the given formatter.

impl<'tcx> TypeFoldable<'tcx> for Rvalue<'tcx>
[src]

[src]

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[src]

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[src]

🔬 This is a nightly-only experimental API. (rustc_private)

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[src]

🔬 This is a nightly-only experimental API. (rustc_private)

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[src]

🔬 This is a nightly-only experimental API. (rustc_private)

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[src]

🔬 This is a nightly-only experimental API. (rustc_private)

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[src]

🔬 This is a nightly-only experimental API. (rustc_private)

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[src]

🔬 This is a nightly-only experimental API. (rustc_private)

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[src]

🔬 This is a nightly-only experimental API. (rustc_private)

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[src]

🔬 This is a nightly-only experimental API. (rustc_private)

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[src]

🔬 This is a nightly-only experimental API. (rustc_private)

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[src]

🔬 This is a nightly-only experimental API. (rustc_private)

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[src]

🔬 This is a nightly-only experimental API. (rustc_private)

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[src]

🔬 This is a nightly-only experimental API. (rustc_private)

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[src]

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

[src]

🔬 This is a nightly-only experimental API. (rustc_private)

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[src]

🔬 This is a nightly-only experimental API. (rustc_private)

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[src]

🔬 This is a nightly-only experimental API. (rustc_private)

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[src]

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Indicates whether this value references only 'global' types/lifetimes that are the same regardless of what fn we are in. This is used for caching. Errs on the side of returning false. Read more