Struct Eval 

pub struct Eval { /* private fields */ }

Evaluation scoring statistics.

Represents success/attempt counts used for simple performance metrics.

Implementations

impl Eval

pub fn as_value(score: u32, count: u32) -> Value

Create a new evaluation value.

pub fn to_pass(&self) -> Value

Record a successful evaluation attempt.

pub fn to_fail(&self) -> Value

Record a failed evaluation attempt.

pub fn score(&self) -> u32

pub fn count(&self) -> u32

pub fn ratio(&self) -> Value

Return success ratio as Value::Literal(Literal::Number).

pub fn print(&self, writer: &mut Writer)

Write as "score / count".

pub fn to_formula(&self) -> String

Return the formula-string representation (round-trippable by the parser).

Trait Implementations

impl Clone for Eval

fn clone(&self) -> Eval

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Eval

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

Formats the value using the given formatter.

impl Display for Eval

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

Formats the value using the given formatter.

impl PartialEq for Eval

fn eq(&self, other: &Eval) -> 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 WriterLike for Eval

fn write(&self, writer: &mut Writer)

Serialize this expression with the given Writer.

fn to_stringized(&self) -> String

Return a string representation (raw unsafe output).

fn to_sanitized(&self) -> String

Return a sanitized string representation (escaped for safe output).

fn to_expressionized(&self) -> String

Return a sanitized string representation (escaped for safe output).

impl StructuralPartialEq for Eval