void HTMLScriptRunner::executePendingScriptAndDispatchEvent(PendingScript& pendingScript)
{
bool errorOccurred = false;
ScriptSourceCode sourceCode = sourceFromPendingScript(pendingScript, errorOccurred);
// Stop watching loads before executeScript to prevent recursion if the script reloads itself.
if (pendingScript.cachedScript() && pendingScript.watchingForLoad())
stopWatchingForLoad(pendingScript);
if (!isExecutingScript()) {
#if ENABLE(CUSTOM_ELEMENTS)
CustomElementRegistry::deliverAllLifecycleCallbacks();
#endif
MutationObserver::deliverAllMutations();
}
// Clear the pending script before possible rentrancy from executeScript()
RefPtr<Element> element = pendingScript.releaseElementAndClear();
if (ScriptElement* scriptElement = toScriptElement(element.get())) {
NestingLevelIncrementer nestingLevelIncrementer(m_scriptNestingLevel);
IgnoreDestructiveWriteCountIncrementer ignoreDestructiveWriteCountIncrementer(m_document);
if (errorOccurred)
scriptElement->dispatchErrorEvent();
else {
ASSERT(isExecutingScript());
scriptElement->executeScript(sourceCode);
element->dispatchEvent(createScriptLoadEvent());
}
}
ASSERT(!isExecutingScript());
}
void HTMLScriptRunner::executePendingScriptAndDispatchEvent(PendingScript& pendingScript)
{
bool errorOccurred = false;
ScriptSourceCode sourceCode = sourceFromPendingScript(pendingScript, errorOccurred);
// Stop watching loads before executeScript to prevent recursion if the script reloads itself.
if (pendingScript.resource() && pendingScript.watchingForLoad())
stopWatchingForLoad(pendingScript);
if (!isExecutingScript())
Microtask::performCheckpoint();
// Clear the pending script before possible rentrancy from executeScript()
RefPtr<Element> element = pendingScript.releaseElementAndClear();
if (ScriptLoader* scriptLoader = toScriptLoaderIfPossible(element.get())) {
NestingLevelIncrementer nestingLevelIncrementer(m_scriptNestingLevel);
IgnoreDestructiveWriteCountIncrementer ignoreDestructiveWriteCountIncrementer(m_document);
if (errorOccurred)
scriptLoader->dispatchErrorEvent();
else {
ASSERT(isExecutingScript());
scriptLoader->executeScript(sourceCode);
element->dispatchEvent(createScriptLoadEvent());
}
}
ASSERT(!isExecutingScript());
}
void HTMLScriptRunner::executePendingScriptAndDispatchEvent(PendingScript& pendingScript)
{
bool errorOccurred = false;
ScriptSourceCode sourceCode = sourceFromPendingScript(pendingScript, errorOccurred);
// Stop watching loads before executeScript to prevent recursion if the script reloads itself.
if (pendingScript.cachedScript() && pendingScript.watchingForLoad())
stopWatchingForLoad(pendingScript);
// WebERA: Insert HB relation between the execution of a pending script and the load of the script
if (HBIsCurrentEventActionValid() && pendingScript.cachedScript() && pendingScript.cachedScript()->isLoaded() && pendingScript.cachedScript()->getLoadingEventAction() != 0) {
HBAddExplicitArc(pendingScript.cachedScript()->getLoadingEventAction(), HBCurrentEventAction());
}
// Clear the pending script before possible rentrancy from executeScript()
RefPtr<Element> element = pendingScript.releaseElementAndClear();
if (ScriptElement* scriptElement = toScriptElement(element.get())) {
NestingLevelIncrementer nestingLevelIncrementer(m_scriptNestingLevel);
IgnoreDestructiveWriteCountIncrementer ignoreDestructiveWriteCountIncrementer(m_document);
if (errorOccurred)
scriptElement->dispatchErrorEvent();
else {
ASSERT(isExecutingScript());
scriptElement->executeScript(sourceCode);
element->dispatchEvent(createScriptLoadEvent());
}
}
ASSERT(!m_scriptNestingLevel);
}
void HTMLScriptRunner::executePendingScriptAndDispatchEvent(PendingScript& pendingScript, PendingScriptType pendingScriptType)
{
bool errorOccurred = false;
ScriptSourceCode sourceCode = sourceFromPendingScript(pendingScript, errorOccurred);
// Stop watching loads before executeScript to prevent recursion if the script reloads itself.
if (pendingScript.resource() && pendingScript.watchingForLoad())
stopWatchingForLoad(pendingScript);
if (!isExecutingScript()) {
Microtask::performCheckpoint();
if (pendingScriptType == PendingScriptBlockingParser) {
m_hasScriptsWaitingForResources = !m_document->isScriptExecutionReady();
// The parser cannot be unblocked as a microtask requested another resource
if (m_hasScriptsWaitingForResources)
return;
}
}
// Clear the pending script before possible rentrancy from executeScript()
RefPtr<Element> element = pendingScript.releaseElementAndClear();
if (ScriptLoader* scriptLoader = toScriptLoaderIfPossible(element.get())) {
NestingLevelIncrementer nestingLevelIncrementer(m_scriptNestingLevel);
IgnoreDestructiveWriteCountIncrementer ignoreDestructiveWriteCountIncrementer(m_document);
if (errorOccurred)
scriptLoader->dispatchErrorEvent();
else {
ASSERT(isExecutingScript());
scriptLoader->executeScript(sourceCode);
element->dispatchEvent(createScriptLoadEvent());
}
}
ASSERT(!isExecutingScript());
}
void HTMLScriptRunner::detach()
{
if (!m_document)
return;
m_parserBlockingScript->stopWatchingForLoad();
m_parserBlockingScript->releaseElementAndClear();
while (!m_scriptsToExecuteAfterParsing.isEmpty()) {
PendingScript* pendingScript = m_scriptsToExecuteAfterParsing.takeFirst();
pendingScript->stopWatchingForLoad();
pendingScript->releaseElementAndClear();
}
m_document = nullptr;
}
void HTMLScriptRunner::executePendingScriptAndDispatchEvent(PendingScript& pendingScript)
{
bool errorOccurred = false;
ScriptSourceCode sourceCode = sourceFromPendingScript(pendingScript, errorOccurred);
// Clear the pending script before possible rentrancy from executeScript()
RefPtr<Element> scriptElement = pendingScript.releaseElementAndClear();
{
NestingLevelIncrementer nestingLevelIncrementer(m_scriptNestingLevel);
if (errorOccurred)
scriptElement->dispatchEvent(createScriptErrorEvent());
else
{
executeScript(scriptElement.get(), sourceCode);
scriptElement->dispatchEvent(createScriptLoadEvent());
}
}
ASSERT(!m_scriptNestingLevel);
}