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Fix panics in the script_task memory reporter.

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These are caused by page_root being empty.
This commit is contained in:
Nicholas Nethercote 2015-08-17 04:37:43 -07:00
parent d90907cb5f
commit 97e3b24aa6
1 changed files with 17 additions and 14 deletions
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31
components/script/script_task.rs
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@ -1188,23 +1188,26 @@ impl ScriptTask {
let mut urls = vec![];
let mut dom_tree_size = 0;
let mut reports = vec![];
for it_page in self.root_page().iter() {
let current_url = it_page.document().url().serialize();
urls.push(current_url.clone());
for child in NodeCast::from_ref(&*it_page.document()).traverse_preorder() {
let target = EventTargetCast::from_ref(&*child);
if let Some(root_page) = self.page.borrow().as_ref() {
for it_page in root_page.iter() {
let current_url = it_page.document().url().serialize();
urls.push(current_url.clone());
for child in NodeCast::from_ref(&*it_page.document()).traverse_preorder() {
let target = EventTargetCast::from_ref(&*child);
dom_tree_size += heap_size_of_eventtarget(target);
}
let window = it_page.window();
let target = EventTargetCast::from_ref(&*window);
dom_tree_size += heap_size_of_eventtarget(target);
}
let window = it_page.window();
let target = EventTargetCast::from_ref(&*window);
dom_tree_size += heap_size_of_eventtarget(target);
reports.push(Report {
path: path![format!("url({})", current_url), "dom-tree"],
kind: ReportKind::ExplicitJemallocHeapSize,
size: dom_tree_size,
})
reports.push(Report {
path: path![format!("url({})", current_url), "dom-tree"],
kind: ReportKind::ExplicitJemallocHeapSize,
size: dom_tree_size,
})
}
}
let path_seg = format!("url({})", urls.join(", "));
reports.extend(ScriptTask::get_reports(self.get_cx(), path_seg));