Struct StateTransition 

pub struct StateTransition {
    pub from_state: String,
    pub to_state: String,
    pub probability: f64,
    pub condition: Option<String>,
    pub side_effects: Option<Vec<String>>,
    pub condition_expression: Option<String>,
    pub condition_ast: Option<Value>,
    pub sub_scenario_ref: Option<String>,
}

State transition definition

Fields

from_state: String

Source state

to_state: String

Destination state

probability: f64

Probability of this transition occurring (0.0 to 1.0)

condition: Option<String>

Optional condition for this transition (legacy string format)

side_effects: Option<Vec<String>>

Optional side effects of this transition

condition_expression: Option<String>

JavaScript/TypeScript expression for conditional transition

This is the new preferred way to specify conditions. Supports full JavaScript expressions with variable access, comparison, and logical operators.

condition_ast: Option<Value>

Parsed condition AST for validation (not serialized, computed on demand)

sub_scenario_ref: Option<String>

Reference to a sub-scenario to execute during this transition

If set, the sub-scenario will be executed when this transition is taken.

Implementations

impl StateTransition

pub fn new(from: impl Into<String>, to: impl Into<String>) -> Self

Create a new state transition

pub fn with_probability(self, probability: f64) -> Self

Set probability

pub fn with_condition(self, condition: impl Into<String>) -> Self

Set condition

pub fn with_side_effect(self, effect: impl Into<String>) -> Self

Add side effect

pub fn with_condition_expression(self, expression: impl Into<String>) -> Self

Set condition expression (JavaScript/TypeScript)

pub fn with_sub_scenario_ref(self, sub_scenario_id: impl Into<String>) -> Self

Set sub-scenario reference

Trait Implementations

impl Clone for StateTransition

fn clone(&self) -> StateTransition

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StateTransition

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for StateTransition

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for StateTransition

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

where __S: Serializer,

Serialize this value into the given Serde serializer.