Struct rquickjs::class::Tracer

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pub struct Tracer<'a, 'js> { /* private fields */ }
Expand description

An object used for tracing references

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impl<'a, 'js> Tracer<'a, 'js>

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pub unsafe fn from_ffi( rt: *mut JSRuntime, mark_func: Option<unsafe extern "C" fn(_: *mut JSRuntime, _: *mut JSGCObjectHeader)> ) -> Tracer<'a, 'js>

Create a tracer from the c implementation.

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Caller must ensure that the trace doesn’t outlive the lifetime of the mark_func and rt pointer

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pub fn mark(self, value: &Value<'js>)

Mark a value as being reachable from the current traced object.

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pub fn mark_ctx(self, ctx: &Ctx<'js>)

Mark the ctx object, this function should be called on any bare ctx objects.

Trait Implementations§

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impl<'a, 'js> Clone for Tracer<'a, 'js>

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fn clone(&self) -> Tracer<'a, 'js>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'a, 'js> Copy for Tracer<'a, 'js>

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impl<'a, 'js> Freeze for Tracer<'a, 'js>

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impl<'a, 'js> RefUnwindSafe for Tracer<'a, 'js>

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impl<'a, 'js> !Send for Tracer<'a, 'js>

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impl<'a, 'js> !Sync for Tracer<'a, 'js>

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impl<'a, 'js> Unpin for Tracer<'a, 'js>

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impl<'a, 'js> !UnwindSafe for Tracer<'a, 'js>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.