Enum Expression 

pub enum Expression {
    Binary(Binary, Box<Expression>, Box<Expression>),
    Constant(u32),
    Die(Die, Option<Reroll>),
    Dice(Dice, Option<Reroll>, Fold),
}

A dice rolling expression.

Variants

Binary(Binary, Box<Expression>, Box<Expression>)

A binary expression.

Constant(u32)

A constant expression.

Die(Die, Option<Reroll>)

A die expression.

Dice(Dice, Option<Reroll>, Fold)

A dice expression.

Implementations

impl Expression

pub fn minimum(&self) -> Option<i32>

Returns the smallest possible result of rolling this dice rolling expression.

pub fn maximum(&self) -> Option<i32>

Returns the largest possible result of rolling this dice rolling expression.

pub fn average(&self) -> Option<Ratio>

Returns the average result of rolling this dice rolling expression.

pub fn results(&self) -> Option<Vec<i32>>

Returns all the possible results of rolling this dice rolling expression.

pub fn probabilities(&self) -> Option<Vec<(i32, Ratio)>>

Returns the probabilities of all the possible results of rolling this dice rolling expression.

impl Expression

pub fn roll(&self, rng: &mut dyn Rng) -> Option<i32>

Rolls this dice rolling expression and returns the result.

This method returns None if any of the binary operations fail (e.g., integer overflow).

Trait Implementations

impl Clone for Expression

fn clone(&self) -> Expression

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Expression

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

Formats the value using the given formatter.

impl Eq for Expression

impl PartialEq for Expression

fn eq(&self, other: &Expression) -> 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 Expression