Enum rustc::mir::TerminatorKind [] [src]

pub enum TerminatorKind<'tcx> {
    Goto {
        target: BasicBlock,
    },
    SwitchInt {
        discr: Operand<'tcx>,
        switch_ty: Ty<'tcx>,
        values: Cow<'tcx, [ConstInt]>,
        targets: Vec<BasicBlock>,
    },
    Resume,
    Return,
    Unreachable,
    Drop {
        location: Lvalue<'tcx>,
        target: BasicBlock,
        unwind: Option<BasicBlock>,
    },
    DropAndReplace {
        location: Lvalue<'tcx>,
        value: Operand<'tcx>,
        target: BasicBlock,
        unwind: Option<BasicBlock>,
    },
    Call {
        func: Operand<'tcx>,
        args: Vec<Operand<'tcx>>,
        destination: Option<(Lvalue<'tcx>, BasicBlock)>,
        cleanup: Option<BasicBlock>,
    },
    Assert {
        cond: Operand<'tcx>,
        expected: bool,
        msg: AssertMessage<'tcx>,
        target: BasicBlock,
        cleanup: Option<BasicBlock>,
    },
    Yield {
        value: Operand<'tcx>,
        resume: BasicBlock,
        drop: Option<BasicBlock>,
    },
    GeneratorDrop,
}
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Variants

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block should have one successor in the graph; we jump there

Fields of Goto

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operand evaluates to an integer; jump depending on its value to one of the targets, and otherwise fallback to otherwise

Fields of SwitchInt

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discriminant value being tested

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type of value being tested

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Possible values. The locations to branch to in each case are found in the corresponding indices from the targets vector.

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Possible branch sites. The last element of this vector is used for the otherwise branch, so targets.len() == values.len() + 1 should hold.

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Indicates that the landing pad is finished and unwinding should continue. Emitted by build::scope::diverge_cleanup.

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Indicates a normal return. The return pointer lvalue should have been filled in by now. This should occur at most once.

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Indicates a terminator that can never be reached.

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Drop the Lvalue

Fields of Drop

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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?

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Drop the Lvalue and assign the new value over it

Fields of DropAndReplace

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Block ends with a call of a converging function

Fields of Call

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The function that’s being called

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Arguments the function is called with. These are owned by the callee, which is free to modify them. This is important as "by-value" arguments might be passed by-reference at the ABI level.

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Destination for the return value. If some, the call is converging.

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Cleanups to be done if the call unwinds.

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Jump to the target if the condition has the expected value, otherwise panic with a message and a cleanup target.

Fields of Assert

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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?

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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?

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A suspend point

Fields of Yield

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The value to return

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Where to resume to

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Cleanup to be done if the generator is dropped at this suspend point

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Indicates the end of the dropping of a generator

Methods

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

[src]

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[src]

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[src]

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

[src]

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Write the "head" part of the terminator; that is, its name and the data it uses to pick the successor basic block, if any. The only information not included is the list of possible successors, which may be rendered differently between the text and the graphviz format.

[src]

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Return the list of labels for the edges to the successor basic blocks.

Trait Implementations

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

[src]

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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?

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

[src]

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

[src]

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

[src]

Formats the value using the given formatter.