Struct HitMap

pub struct HitMap {
    pub(crate) bytecode: Bytes,
    pub(crate) hits: HashMap<u32, u32, RandomState>,
}

Hit data for an address.

Contains low-level data about hit counters for the instructions in the bytecode of a contract.

Fields

bytecode: Bytes

hits: HashMap<u32, u32, RandomState>

Implementations

impl HitMap

pub fn new(bytecode: Bytes) -> HitMap

Create a new hitmap with the given bytecode.

pub fn bytecode(&self) -> &Bytes

Returns the bytecode.

pub fn get(&self, pc: usize) -> Option<NonZero<u32>>

Returns the number of hits for the given program counter.

pub fn hit(&mut self, pc: usize)

Increase the hit counter by 1 for the given program counter.

pub fn hits(&mut self, pc: usize, hits: u32)

Increase the hit counter by hits for the given program counter.

pub fn merge(&mut self, other: &HitMap)

Merge another hitmap into this, assuming the bytecode is consistent

pub fn iter(&self) -> impl Iterator<Item = (usize, u32)>

Returns an iterator over all the program counters and their hit counts.

pub fn len(&self) -> usize

Returns the number of program counters hit in the hitmap.

pub fn is_empty(&self) -> bool

Returns true if the hitmap is empty.

Trait Implementations

impl Clone for HitMap

fn clone(&self) -> HitMap

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for HitMap

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

Formats the value using the given formatter.

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: 72 bytes