Struct Contract 

pub struct Contract { /* private fields */ }

The consumption contract: which regions must be reached, and what fraction of them (permille) satisfies the author.

Implementations

impl Contract

pub fn new( regions: Vec<Region>, min_permille: u16, ) -> Result<Self, ContractError>

Validate a whole contract.

pub fn regions(&self) -> &[Region]

The declared regions, in declaration order (bit i of a touch mask names regions()[i]).

pub fn min_permille(&self) -> u16

The satisfaction threshold, as a permille of declared regions.

pub fn touched_by_span(&self, from: u32, to: u32) -> u8

Which regions a served line window [from, to] touches, as the event bitmask.

pub fn touched_by_line(&self, line: u32) -> u8

Which regions a single served line touches (search hits).

pub fn evaluate(&self, bits: u8) -> Coverage

Evaluate accumulated touch bits against the threshold.

Panics

Never in practice: touched ≤ required ≤ 8 keeps the permille within u16; the expect documents the invariant.

Trait Implementations

impl Clone for Contract

fn clone(&self) -> Contract

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Contract

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Contract

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Contract

impl PartialEq for Contract

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Contract

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Contract