Struct gc_sequence::SequenceFnWith

#[must_use = "sequences do nothing unless stepped"]
pub struct SequenceFnWith<C, F>(_);

Implementations

impl<C, F> SequenceFnWith<C, F>

pub fn new(c: C, f: F) -> SequenceFnWith<C, F>

Trait Implementations

impl<C, F> Collect for SequenceFnWith<C, F> where
    Option<(C, StaticCollect<F>)>: Collect, 

fn needs_trace() -> bool

As an optimization, if this type can never hold a Gc pointer and trace is unnecessary to call, you may implement this method and return false. The default implementation returns true, signaling that Collect::trace must be called.

fn trace(&self, cc: CollectionContext<'_>)

Must call Collect::trace on all held Gc pointers. If this type holds inner types that implement Collect, a valid implementation would simply call Collect::trace on all the held values to ensure this.

impl<C: Debug, F: Debug> Debug for SequenceFnWith<C, F>

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

Formats the value using the given formatter.

impl<C, F> MustNotImplDrop for SequenceFnWith<C, F>

impl<'gc, C, F, R> Sequence<'gc> for SequenceFnWith<C, F> where
    F: 'static + FnOnce(MutationContext<'gc, '_>, C) -> R,
    C: Collect, 

type Output = R

fn step(&mut self, mc: MutationContext<'gc, '_>) -> Option<Self::Output>