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RuntimeCoverageOptimizationTarget

Struct RuntimeCoverageOptimizationTarget 

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pub struct RuntimeCoverageOptimizationTarget {
    pub cost_score: u64,
    pub cost_basis: RuntimeCoverageCostBasis,
    pub cognitive: u16,
    pub cyclomatic: u16,
    pub line_count: u32,
    pub inner_iterations_per_call: Option<f64>,
}
Expand description

Speed-work inputs for one hot function: how often it runs and how much work each call does. importance ranks the risk of a change; this block ranks where speed work gives the largest gain.

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§cost_score: u64

invocations multiplied by the per-call cost that cost_basis names. Uncapped integer. Compare it only between hot paths with the same cost_basis: sort by cost_basis first, then by cost_score descending. On the cognitive basis the per-call cost is at least 1.

§cost_basis: RuntimeCoverageCostBasis

Which per-call cost the score uses.

§cognitive: u16

Static cognitive complexity of the function. A static proxy for the work per call, not a measurement.

§cyclomatic: u16

Static cyclomatic complexity of the function.

§line_count: u32

Number of lines in the function body.

§inner_iterations_per_call: Option<f64>

Peak executions of one block inside the function per call, from V8 block coverage. 1.0 means no block ran more than once per call. A loop body that runs 3 times per call gives 3.0. Calls to other functions do not change the value. Omitted when the coverage input has no block counts for the function.

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impl Clone for RuntimeCoverageOptimizationTarget

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for RuntimeCoverageOptimizationTarget

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

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for RuntimeCoverageOptimizationTarget

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl PartialEq for RuntimeCoverageOptimizationTarget

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl Serialize for RuntimeCoverageOptimizationTarget

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl StructuralPartialEq for RuntimeCoverageOptimizationTarget

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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

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impl<T> BorrowMut<T> for T
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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

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where T: Clone,

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fn __clone_box(&self, _: Private) -> *mut ()

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impl<T> From<T> for T

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fn from(t: T) -> T

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fn from_in(t: T, _: &'a Allocator) -> T

Converts to this type from the input type within the given allocator.
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fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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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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where U: FromIn<'a, T>,

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fn into_in(self, allocator: &'a Allocator) -> U

Converts this type into the (usually inferred) input type within the given allocator.
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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Dereferences the given pointer. Read more
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Drops the object pointed to by the given pointer. Read more
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The resulting type after obtaining ownership.
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impl<T, U> TryFrom<U> for T
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type Error = !

The type returned in the event of a conversion error.
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where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

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