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Ignore the HTML parser's borrow flag in GC tracing

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Adds some other dynamic checks in debug builds.
This commit is contained in:
Keegan McAllister 2014-10-23 18:10:00 -07:00
parent 6ec0939a22
commit 49234484d6
5 changed files with 59 additions and 5 deletions
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18
components/script/script_task.rs
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@ -60,6 +60,7 @@ use geom::point::Point2D;
use js::jsapi::{JS_SetWrapObjectCallbacks, JS_SetGCZeal, JS_DEFAULT_ZEAL_FREQ, JS_GC};
use js::jsapi::{JSContext, JSRuntime, JSTracer};
use js::jsapi::{JS_SetGCParameter, JSGC_MAX_BYTES};
use js::jsapi::{JS_SetGCCallback, JSGCStatus, JSGC_BEGIN, JSGC_END};
use js::rust::{Cx, RtUtils};
use js::rust::with_compartment;
use js;
@ -285,6 +286,16 @@ impl ScriptTaskFactory for ScriptTask {
}
}
unsafe extern "C" fn debug_gc_callback(rt: *mut JSRuntime, status: JSGCStatus) {
js::rust::gc_callback(rt, status);
match status {
JSGC_BEGIN => task_state::enter(task_state::InGC),
JSGC_END => task_state::exit(task_state::InGC),
_ => (),
}
}
impl ScriptTask {
/// Creates a new script task.
pub fn new(id: PipelineId,
@ -376,6 +387,13 @@ impl ScriptTask {
JS_SetGCZeal((*js_context).ptr, 0, JS_DEFAULT_ZEAL_FREQ);
}
// Needed for debug assertions about whether GC is running.
if !cfg!(ndebug) {
unsafe {
JS_SetGCCallback(js_runtime.ptr, Some(debug_gc_callback));
}
}
(js_runtime, js_context)
}