Struct NonLocalExit 

pub struct NonLocalExit { /* private fields */ }

A pending non-local exit: a kind, a target label, and a carried value.

Resolved by escape_to_label, which aborts to the LabeledPrompt whose label matches.

Implementations

impl NonLocalExit

pub fn new(kind: NonLocalExitKind, label: Symbol, value: Ref) -> Self

Builds a non-local exit of kind targeting label and carrying value.

pub fn break_to(label: Symbol, value: Ref) -> Self

Builds a NonLocalExitKind::Break exit to label with value.

pub fn next_to(label: Symbol, value: Ref) -> Self

Builds a NonLocalExitKind::Next exit to label with value.

pub fn return_to(label: Symbol, value: Ref) -> Self

Builds a NonLocalExitKind::Return exit to label with value.

pub fn kind(&self) -> NonLocalExitKind

Returns the exit kind.

pub fn label(&self) -> &Symbol

Returns the target label.

pub fn value(&self) -> &Ref

Returns the value carried out of the block.

Trait Implementations

impl Clone for NonLocalExit

fn clone(&self) -> NonLocalExit

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NonLocalExit

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

Formats the value using the given formatter.

impl Eq for NonLocalExit

impl PartialEq for NonLocalExit

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