pub trait Trace<'js> {
    // Required method
    fn trace<'a>(&self, tracer: Tracer<'a, 'js>);
}
Expand description

A trait for classes for tracing references to quickjs objects.

Quickjs uses reference counting with tracing to break cycles. As a result implementing this trait incorrectly by not tracing an object cannot result in unsound code. It will however result in memory leaks as the GC will be unable to break cycles which in turn result in cyclic references being kept alive forever.

Required Methods§

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fn trace<'a>(&self, tracer: Tracer<'a, 'js>)

Implementations on Foreign Types§

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impl<'js, T> Trace<'js> for BTreeSet<T>where T: Trace<'js>,

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fn trace<'a>(&self, tracer: Tracer<'a, 'js>)

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impl<'js, T, S> Trace<'js> for HashSet<T, S>where T: Trace<'js>,

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fn trace<'a>(&self, tracer: Tracer<'a, 'js>)

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impl<'js, A, B, C, D, E, F, G, H, I, J, K, L, M> Trace<'js> for (A, B, C, D, E, F, G, H, I, J, K, L, M)where A: Trace<'js>, B: Trace<'js>, C: Trace<'js>, D: Trace<'js>, E: Trace<'js>, F: Trace<'js>, G: Trace<'js>, H: Trace<'js>, I: Trace<'js>, J: Trace<'js>, K: Trace<'js>, L: Trace<'js>, M: Trace<'js>,

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js> Trace<'js> for bool

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js, A> Trace<'js> for (A,)where A: Trace<'js>,

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js, A, B, C, D> Trace<'js> for (A, B, C, D)where A: Trace<'js>, B: Trace<'js>, C: Trace<'js>, D: Trace<'js>,

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js> Trace<'js> for i64

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js, T, S> Trace<'js> for IndexSet<T, S>where T: Trace<'js>,

Available on crate features classes and indexmap only.
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fn trace<'a>(&self, tracer: Tracer<'a, 'js>)

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impl<'js> Trace<'js> for isize

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js> Trace<'js> for f64

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js> Trace<'js> for ()

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js, T> Trace<'js> for Rc<T>where T: Trace<'js>,

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fn trace<'a>(&self, tracer: Tracer<'a, 'js>)

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impl<'js, A, B, C, D, E, F, G, H> Trace<'js> for (A, B, C, D, E, F, G, H)where A: Trace<'js>, B: Trace<'js>, C: Trace<'js>, D: Trace<'js>, E: Trace<'js>, F: Trace<'js>, G: Trace<'js>, H: Trace<'js>,

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js, A, B, C, D, E> Trace<'js> for (A, B, C, D, E)where A: Trace<'js>, B: Trace<'js>, C: Trace<'js>, D: Trace<'js>, E: Trace<'js>,

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js> Trace<'js> for u16

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js, A, B> Trace<'js> for (A, B)where A: Trace<'js>, B: Trace<'js>,

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js, A, B, C, D, E, F, G, H, I, J, K> Trace<'js> for (A, B, C, D, E, F, G, H, I, J, K)where A: Trace<'js>, B: Trace<'js>, C: Trace<'js>, D: Trace<'js>, E: Trace<'js>, F: Trace<'js>, G: Trace<'js>, H: Trace<'js>, I: Trace<'js>, J: Trace<'js>, K: Trace<'js>,

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js> Trace<'js> for char

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js> Trace<'js> for f32

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js, T> Trace<'js> for VecDeque<T>where T: Trace<'js>,

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fn trace<'a>(&self, tracer: Tracer<'a, 'js>)

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impl<'js, T> Trace<'js> for Box<T>where T: Trace<'js>,

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fn trace<'a>(&self, tracer: Tracer<'a, 'js>)

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impl<'js> Trace<'js> for i8

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js, T> Trace<'js> for Arc<T>where T: Trace<'js>,

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fn trace<'a>(&self, tracer: Tracer<'a, 'js>)

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impl<'js, T> Trace<'js> for Vec<T>where T: Trace<'js>,

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fn trace<'a>(&self, tracer: Tracer<'a, 'js>)

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impl<'js, A, B, C, D, E, F, G, H, I> Trace<'js> for (A, B, C, D, E, F, G, H, I)where A: Trace<'js>, B: Trace<'js>, C: Trace<'js>, D: Trace<'js>, E: Trace<'js>, F: Trace<'js>, G: Trace<'js>, H: Trace<'js>, I: Trace<'js>,

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js, A, B, C, D, E, F, G, H, I, J> Trace<'js> for (A, B, C, D, E, F, G, H, I, J)where A: Trace<'js>, B: Trace<'js>, C: Trace<'js>, D: Trace<'js>, E: Trace<'js>, F: Trace<'js>, G: Trace<'js>, H: Trace<'js>, I: Trace<'js>, J: Trace<'js>,

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js, A, B, C, D, E, F, G, H, I, J, K, L, M, N> Trace<'js> for (A, B, C, D, E, F, G, H, I, J, K, L, M, N)where A: Trace<'js>, B: Trace<'js>, C: Trace<'js>, D: Trace<'js>, E: Trace<'js>, F: Trace<'js>, G: Trace<'js>, H: Trace<'js>, I: Trace<'js>, J: Trace<'js>, K: Trace<'js>, L: Trace<'js>, M: Trace<'js>, N: Trace<'js>,

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js, A, B, C, D, E, F, G, H, I, J, K, L, M, N, O> Trace<'js> for (A, B, C, D, E, F, G, H, I, J, K, L, M, N, O)where A: Trace<'js>, B: Trace<'js>, C: Trace<'js>, D: Trace<'js>, E: Trace<'js>, F: Trace<'js>, G: Trace<'js>, H: Trace<'js>, I: Trace<'js>, J: Trace<'js>, K: Trace<'js>, L: Trace<'js>, M: Trace<'js>, N: Trace<'js>, O: Trace<'js>,

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js, A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P> Trace<'js> for (A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P)where A: Trace<'js>, B: Trace<'js>, C: Trace<'js>, D: Trace<'js>, E: Trace<'js>, F: Trace<'js>, G: Trace<'js>, H: Trace<'js>, I: Trace<'js>, J: Trace<'js>, K: Trace<'js>, L: Trace<'js>, M: Trace<'js>, N: Trace<'js>, O: Trace<'js>, P: Trace<'js>,

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js, K, V, S> Trace<'js> for IndexMap<K, V, S>where K: Trace<'js>, V: Trace<'js>,

Available on crate features classes and indexmap only.
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fn trace<'a>(&self, tracer: Tracer<'a, 'js>)

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impl<'js, A, B, C, D, E, F, G> Trace<'js> for (A, B, C, D, E, F, G)where A: Trace<'js>, B: Trace<'js>, C: Trace<'js>, D: Trace<'js>, E: Trace<'js>, F: Trace<'js>, G: Trace<'js>,

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js, A, B, C, D, E, F, G, H, I, J, K, L> Trace<'js> for (A, B, C, D, E, F, G, H, I, J, K, L)where A: Trace<'js>, B: Trace<'js>, C: Trace<'js>, D: Trace<'js>, E: Trace<'js>, F: Trace<'js>, G: Trace<'js>, H: Trace<'js>, I: Trace<'js>, J: Trace<'js>, K: Trace<'js>, L: Trace<'js>,

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js> Trace<'js> for u64

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js> Trace<'js> for u8

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js, A, B, C> Trace<'js> for (A, B, C)where A: Trace<'js>, B: Trace<'js>, C: Trace<'js>,

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js> Trace<'js> for String

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js, K, V> Trace<'js> for BTreeMap<K, V>where K: Trace<'js>, V: Trace<'js>,

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fn trace<'a>(&self, tracer: Tracer<'a, 'js>)

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impl<'js> Trace<'js> for u32

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js, A, B, C, D, E, F> Trace<'js> for (A, B, C, D, E, F)where A: Trace<'js>, B: Trace<'js>, C: Trace<'js>, D: Trace<'js>, E: Trace<'js>, F: Trace<'js>,

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js> Trace<'js> for i16

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js, K, V, S> Trace<'js> for HashMap<K, V, S>where K: Trace<'js>, V: Trace<'js>,

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fn trace<'a>(&self, tracer: Tracer<'a, 'js>)

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impl<'js> Trace<'js> for usize

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

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impl<'js, T> Trace<'js> for LinkedList<T>where T: Trace<'js>,

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fn trace<'a>(&self, tracer: Tracer<'a, 'js>)

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impl<'js> Trace<'js> for i32

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fn trace<'a>(&self, _tracer: Tracer<'a, 'js>)

Implementors§

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impl<'js> Trace<'js> for Array<'js>

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impl<'js> Trace<'js> for Atom<'js>

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impl<'js> Trace<'js> for Ctx<'js>

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impl<'js> Trace<'js> for Function<'js>

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impl<'js> Trace<'js> for RustFunction<'js>

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impl<'js> Trace<'js> for Module<'js>

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impl<'js> Trace<'js> for Object<'js>

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impl<'js> Trace<'js> for BigInt<'js>

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impl<'js> Trace<'js> for Exception<'js>

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impl<'js> Trace<'js> for rquickjs_core::String<'js>

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impl<'js> Trace<'js> for Symbol<'js>

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impl<'js> Trace<'js> for Value<'js>

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impl<'js, T> Trace<'js> for Class<'js, T>where T: JsClass<'js>,