Struct VariableEngine 

pub struct VariableEngine { /* private fields */ }

Hierarchical variable scoping engine.

Implementations

impl VariableEngine

pub fn new() -> Self

pub fn create_scope( &mut self, scope_type: ScopeType, parent_scope_id: Option<&str>, ) -> String

Create a new scope.

pub fn set( &mut self, scope_id: &str, name: &str, value: Value, var_type: VariableType, set_by: &str, ) -> WorkflowResult<()>

Set a variable in a scope.

pub fn get(&self, scope_id: &str, name: &str) -> WorkflowResult<&ScopedVariable>

Get a variable, respecting scope hierarchy (child → parent cascade).

pub fn list(&self, scope_id: &str) -> WorkflowResult<Vec<&ScopedVariable>>

List all variables in a scope (not including parent).

pub fn promote(&mut self, scope_id: &str, name: &str) -> WorkflowResult<()>

Promote a variable from child scope to parent scope.

pub fn type_check(&self) -> TypeCheckResult

Type check all variables across scopes.

pub fn make_immutable( &mut self, scope_id: &str, name: &str, ) -> WorkflowResult<()>

Make a variable immutable.

Trait Implementations

impl Default for VariableEngine

fn default() -> Self

Returns the “default value” for a type.