Struct CapturedEnvironment 

pub struct CapturedEnvironment {
    pub bindings: HashMap<String, CapturedBinding>,
    pub parent: Option<Box<CapturedEnvironment>>,
}

Captured environment for a closure

Fields

bindings: HashMap<String, CapturedBinding>

Captured variable bindings

parent: Option<Box<CapturedEnvironment>>

Parent environment (for nested closures)

Implementations

impl CapturedEnvironment

pub fn new() -> Self

Create a new empty captured environment

pub fn with_parent(parent: CapturedEnvironment) -> Self

Create a new environment with a parent

pub fn capture(&mut self, name: String, value: ValueWord, kind: VarKind)

Capture a variable from the current scope

pub fn lookup(&self, name: &str) -> Option<&CapturedBinding>

Look up a captured variable

pub fn lookup_mut(&mut self, name: &str) -> Option<&mut CapturedBinding>

Look up a captured variable mutably

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

Get all captured variable names (including from parent scopes)

Trait Implementations

impl Clone for CapturedEnvironment

fn clone(&self) -> CapturedEnvironment

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CapturedEnvironment

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

Formats the value using the given formatter.

impl Default for CapturedEnvironment

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for CapturedEnvironment

fn eq(&self, other: &Self) -> 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.