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bb0d08432e
* Migrate to 2024 edition Signed-off-by: Simon Wülker <simon.wuelker@arcor.de> * Allow unsafe_op_in_unsafe_fn lint This lint warns by default in the 2024 edition, but is *way* too noisy for servo. We might enable it in the future, but not now. Signed-off-by: Simon Wülker <simon.wuelker@arcor.de> * Compile using the 2024 edition Signed-off-by: Simon Wülker <simon.wuelker@arcor.de> --------- Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
55 lines
1.7 KiB
Rust
55 lines
1.7 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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use js::glue::CallObjectTracer;
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use js::jsapi::{GCTraceKindToAscii, Heap, JSObject, JSTracer, TraceKind};
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use crate::error::Error;
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use crate::reflector::Reflector;
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use crate::str::{DOMString, USVString};
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/// Trace the `JSObject` held by `reflector`.
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///
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/// # Safety
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/// tracer must point to a valid, non-null JS tracer.
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#[cfg_attr(crown, allow(crown::unrooted_must_root))]
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pub unsafe fn trace_reflector(tracer: *mut JSTracer, description: &str, reflector: &Reflector) {
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trace!("tracing reflector {}", description);
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unsafe { trace_object(tracer, description, reflector.rootable()) }
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}
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/// Trace a `JSObject`.
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///
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/// # Safety
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/// tracer must point to a valid, non-null JS tracer.
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pub unsafe fn trace_object(tracer: *mut JSTracer, description: &str, obj: &Heap<*mut JSObject>) {
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unsafe {
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trace!("tracing {}", description);
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CallObjectTracer(
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tracer,
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obj.ptr.get() as *mut _,
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GCTraceKindToAscii(TraceKind::Object),
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);
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}
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}
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/// For use on non-jsmanaged types
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/// Use #[derive(JSTraceable)] on JS managed types
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macro_rules! unsafe_no_jsmanaged_fields(
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($($ty:ty),+) => (
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$(
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#[allow(unsafe_code)]
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unsafe impl crate::JSTraceable for $ty {
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#[inline]
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unsafe fn trace(&self, _: *mut ::js::jsapi::JSTracer) {
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// Do nothing
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}
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}
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)+
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);
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);
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unsafe_no_jsmanaged_fields!(DOMString);
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unsafe_no_jsmanaged_fields!(USVString);
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unsafe_no_jsmanaged_fields!(Error);
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