Struct VariableTable 

pub struct VariableTable { /* private fields */ }

Variable table with hierarchical scoping

Implementations

impl VariableTable

pub fn new() -> Self

Create new empty variable table

pub fn with_parent(parent: VariableTable) -> Self

Create new variable table with parent scope

pub fn set(&mut self, name: String, value: Value)

Set variable with default binding type (Let)

pub fn set_with_type( &mut self, name: String, value: Value, binding_type: BindingType, )

Set variable with specific binding type

pub fn update(&mut self, name: &str, value: Value) -> Result<(), String>

Update existing variable (respecting const)

pub fn get(&self, name: &str) -> Option<&Value>

Get variable value (searches up the scope chain)

pub fn get_binding(&self, name: &str) -> Option<&Binding>

Get binding (with metadata)

pub fn has_local(&self, name: &str) -> bool

Check if variable exists in current scope (not parent)

pub fn has(&self, name: &str) -> bool

Check if variable exists in any scope

pub fn remove(&mut self, name: &str) -> Option<Value>

Remove variable from current scope

pub fn local_variables(&self) -> Vec<String>

Get all variables in current scope (for debugging)

Trait Implementations

impl Clone for VariableTable

fn clone(&self) -> VariableTable

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VariableTable

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

Formats the value using the given formatter.

impl Default for VariableTable

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for VariableTable

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