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instrument script loads for debugging

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This commit is contained in:
Cameron Kaiser 2019-10-28 19:04:01 -07:00
parent 842c3af2a3
commit f71ffd52af
1 changed files with 11 additions and 0 deletions
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11
dom/base/nsScriptLoader.cpp
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@ -531,6 +531,12 @@ nsScriptLoader::ProcessScriptElement(nsIScriptElement *aElement)
return false;
}
#ifdef DEBUG
nsAutoCString scriptURISpec;
scriptURI->GetAsciiSpec(scriptURISpec);
fprintf(stderr, "Processing external script: %s\n", scriptURISpec.get());
#endif
// Double-check that the preload matches what we're asked to load now.
mozilla::net::ReferrerPolicy ourRefPolicy = mDocument->GetReferrerPolicy();
CORSMode ourCORSMode = aElement->GetCORSMode();
@ -555,6 +561,7 @@ nsScriptLoader::ProcessScriptElement(nsIScriptElement *aElement)
if (NS_FAILED(rv)) {
// probably plans have changed; even though the preload was allowed seems
// like the actual load is not; let's cancel the preload request.
NS_WARNING("Preload was cancelled");
request->Cancel();
return false;
}
@ -607,6 +614,7 @@ nsScriptLoader::ProcessScriptElement(nsIScriptElement *aElement)
if (aElement->GetScriptAsync()) {
request->mIsAsync = true;
NS_WARNING("Current script is async");
if (request->IsDoneLoading()) {
mLoadedAsyncRequests.AppendElement(request);
// The script is available already. Run it ASAP when the event
@ -624,6 +632,7 @@ nsScriptLoader::ProcessScriptElement(nsIScriptElement *aElement)
// Violate the HTML5 spec in order to make LABjs and the "order" plug-in
// for RequireJS work with their Gecko-sniffed code path. See
// http://lists.w3.org/Archives/Public/public-html/2010Oct/0088.html
NS_WARNING("Parser not yet created for this script");
request->mIsNonAsyncScriptInserted = true;
mNonAsyncExternalScriptInsertedRequests.AppendElement(request);
if (request->IsDoneLoading()) {
@ -636,6 +645,7 @@ nsScriptLoader::ProcessScriptElement(nsIScriptElement *aElement)
// we now have a parser-inserted request that may or may not be still
// loading
if (aElement->GetScriptDeferred()) {
NS_WARNING("Current script is deferred");
// We don't want to run this yet.
// If we come here, the script is a parser-created script and it has
// the defer attribute but not the async attribute. Since a
@ -1232,6 +1242,7 @@ nsScriptLoader::ProcessPendingRequests()
if (mDocumentParsingDone && mXSLTRequests.isEmpty()) {
while (!mDeferRequests.isEmpty() && mDeferRequests.getFirst()->IsReadyToRun()) {
NS_WARNING("Handling deferred request");
request = mDeferRequests.StealFirst();
ProcessRequest(request);
}