Enum FlowEvent 

pub enum FlowEvent {
    Break(Span),
    Continue(Span),
    Return(Span, Option<Value>, bool),
}

A control flow event that occurred during evaluation.

Variants

Break(Span)

Stop iteration in a loop.

Continue(Span)

Skip the remainder of the current iteration in a loop.

Return(Span, Option<Value>, bool)

Stop execution of a function early, optionally returning an explicit value. The final boolean indicates whether the return was conditional.

Implementations

impl FlowEvent

pub fn forbidden(&self) -> SourceDiagnostic

Return an error stating that this control flow is forbidden.

Trait Implementations

impl Clone for FlowEvent

fn clone(&self) -> FlowEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FlowEvent

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

Formats the value using the given formatter.

impl PartialEq for FlowEvent

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