Struct Rule 

pub struct Rule {
    pub name: String,
    pub description: Option<String>,
    pub salience: i32,
    pub when_condition: Expression,
    pub then_actions: Vec<Expression>,
}

A rule: when its condition holds, its actions run.

Fields

name: String

Unique name, used by Retract and in errors.

description: Option<String>

Optional description.

salience: i32

Priority: when several rules match, the highest salience fires first.

when_condition: Expression

The condition, which must evaluate to a boolean.

then_actions: Vec<Expression>

The actions: assignments and function or method calls.

Implementations

impl Rule

pub fn new( name: String, salience: i32, when_condition: Expression, then_actions: Vec<Expression>, ) -> Self

A rule with no description.

pub fn with_description(self, description: String) -> Self

Sets the description.

Trait Implementations

impl Clone for Rule

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Rule

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Rule

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Rule

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Rule

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 Rule