Struct EvaluationContext 

pub struct EvaluationContext<'a> {
    pub cohorts: &'a HashMap<String, CohortDefinition>,
    pub flags: &'a HashMap<String, FeatureFlag>,
    pub distinct_id: &'a str,
    pub groups: &'a HashMap<String, String>,
    pub group_properties: &'a HashMap<String, HashMap<String, Value>>,
    pub group_type_mapping: &'a HashMap<String, String>,
}

Context for evaluating properties that may depend on cohorts or other flags.

groups, group_properties, and group_type_mapping are used to resolve group-targeted and mixed-targeting flags. A group condition (one whose aggregation_group_type_index is set, either at the flag or condition level) is bucketed on the group key and matched against group properties looked up via the group type mapping.

Fields

cohorts: &'a HashMap<String, CohortDefinition>

Cohort definitions available to local evaluation, keyed by cohort ID.

flags: &'a HashMap<String, FeatureFlag>

Feature flag definitions available to evaluate flag dependencies, keyed by flag key.

distinct_id: &'a str

Distinct ID used for person-targeted flag bucketing.

groups: &'a HashMap<String, String>

Group keys for group-targeted flags, keyed by group type.

group_properties: &'a HashMap<String, HashMap<String, Value>>

Group properties for group-targeted flags, keyed by group type and then property name.

group_type_mapping: &'a HashMap<String, String>

Mapping from PostHog group type index to group type name.