Enum CoverageKind

pub enum CoverageKind {
    SpanMarker,
    BlockMarker {
        id: BlockMarkerId,
    },
    VirtualCounter {
        bcb: BasicCoverageBlock,
    },
    CondBitmapUpdate {
        index: u32,
        decision_depth: u16,
    },
    TestVectorBitmapUpdate {
        bitmap_idx: u32,
        decision_depth: u16,
    },
}

Variants

SpanMarker

Marks a span that might otherwise not be represented in MIR, so that coverage instrumentation can associate it with its enclosing block/BCB.

Should be erased before codegen (at some point after InstrumentCoverage).

BlockMarker

Marks its enclosing basic block with an ID that can be referred to by side data in CoverageInfoHi.

Should be erased before codegen (at some point after InstrumentCoverage).

Fields

id: BlockMarkerId

VirtualCounter

Marks its enclosing basic block with the ID of the coverage graph node that it was part of during the InstrumentCoverage MIR pass.

During codegen, this might be lowered to llvm.instrprof.increment or to a no-op, depending on the outcome of counter-creation.

Fields

bcb: BasicCoverageBlock

CondBitmapUpdate

Marks the point in MIR control flow represented by a evaluated condition.

This is eventually lowered to instruments updating mcdc temp variables.

Fields

index: u32

decision_depth: u16

TestVectorBitmapUpdate

Marks the point in MIR control flow represented by a evaluated decision.

This is eventually lowered to llvm.instrprof.mcdc.tvbitmap.update in LLVM IR.

Fields

bitmap_idx: u32

decision_depth: u16

Trait Implementations

impl Clone for CoverageKind

fn clone(&self) -> CoverageKind

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CoverageKind

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

Formats the value using the given formatter.

impl<'tcx, __D: TyDecoder<'tcx>> Decodable<__D> for CoverageKind

fn decode(__decoder: &mut __D) -> Self

impl<'tcx, __E: TyEncoder<'tcx>> Encodable<__E> for CoverageKind

fn encode(&self, __encoder: &mut __E)

impl Hash for CoverageKind

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<'__ctx> HashStable<StableHashingContext<'__ctx>> for CoverageKind

fn hash_stable( &self, __hcx: &mut StableHashingContext<'__ctx>, __hasher: &mut StableHasher, )

impl PartialEq for CoverageKind

fn eq(&self, other: &CoverageKind) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for CoverageKind

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:

• SpanMarker: 0 bytes
• BlockMarker: 6 bytes
• VirtualCounter: 6 bytes
• CondBitmapUpdate: 6 bytes
• TestVectorBitmapUpdate: 6 bytes