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Use try syntax for Option where appropriate

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This commit is contained in:
Matt Brubeck 2017-10-20 08:25:35 -07:00
parent fe16c1d5c3
commit 2d45e9d2da
19 changed files with 65 additions and 180 deletions
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12
components/script/dom/htmliframeelement.rs
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@ -588,17 +588,13 @@ impl HTMLIFrameElementMethods for HTMLIFrameElement {
// https://html.spec.whatwg.org/multipage/#concept-bcc-content-document
fn GetContentDocument(&self) -> Option<DomRoot<Document>> {
// Step 1.
let pipeline_id = match self.pipeline_id.get() {
None => return None,
Some(pipeline_id) => pipeline_id,
};
let pipeline_id = self.pipeline_id.get()?;
// Step 2-3.
// Note that this lookup will fail if the document is dissimilar-origin,
// so we should return None in that case.
let document = match ScriptThread::find_document(pipeline_id) {
None => return None,
Some(document) => document,
};
let document = ScriptThread::find_document(pipeline_id)?;
// Step 4.
let current = GlobalScope::current().expect("No current global object").as_window().Document();
if !current.origin().same_origin_domain(document.origin()) {