Struct VariableTable 

pub struct VariableTable {
    pub variables: HashMap<String, Value>,
    pub parent: Option<Box<VariableTable>>,
}

Fields

variables: HashMap<String, Value>

parent: Option<Box<VariableTable>>

Implementations

impl VariableTable

pub fn new() -> Self

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

pub fn with_parent(parent: VariableTable) -> Self

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

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

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() -> VariableTable

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