CodeBlockHash::CodeBlockHash(const SourceCode& sourceCode, CodeSpecializationKind kind)
: m_hash(0)
{
SHA1 sha1;
sha1.addBytes(sourceCode.toString().utf8());
Vector<uint8_t, 20> digest;
sha1.computeHash(digest);
m_hash += digest[0] | (digest[1] << 8) | (digest[2] << 16) | (digest[3] << 24);
m_hash ^= static_cast<unsigned>(kind);
}
bool FunctionOverrides::initializeOverrideFor(const SourceCode& origCode, FunctionOverrides::OverrideInfo& result)
{
ASSERT(Options::functionOverrides());
FunctionOverrides& overrides = FunctionOverrides::overrides();
auto it = overrides.m_entries.find(origCode.toString());
if (it == overrides.m_entries.end())
return false;
initializeOverrideInfo(origCode, it->value, result);
return true;
}
void evaluateModule(ExecState* exec, const SourceCode& source, NakedPtr<Exception>& returnedException)
{
JSLockHolder lock(exec);
RELEASE_ASSERT(exec->vm().atomicStringTable() == wtfThreadData().atomicStringTable());
RELEASE_ASSERT(!exec->vm().isCollectorBusy());
CodeProfiling profile(source);
JSGlobalObject* globalObject = exec->vmEntryGlobalObject();
// Generate the unique key for the source-provided module.
PrivateName privateName(PrivateName::Description, "EntryPointModule");
Symbol* key = Symbol::create(exec->vm(), *privateName.uid());
ModuleLoaderObject* moduleLoader = globalObject->moduleLoader();
// Insert the given source code to the ModuleLoader registry as the fetched registry entry.
moduleLoader->provide(exec, key, ModuleLoaderObject::Status::Fetch, source.toString());
if (exec->hadException()) {
returnedException = exec->exception();
exec->clearException();
return;
}
// FIXME: Now, we don't implement the linking phase yet.
// So here, we just call requestInstantiateAll to only perform the module loading.
// At last, it should be replaced with requestReady.
// https://bugs.webkit.org/show_bug.cgi?id=148172
moduleLoader->requestInstantiateAll(exec, key);
// FIXME: We should also handle the asynchronous Syntax Errors that will be delivered by the rejected promise.
// https://bugs.webkit.org/show_bug.cgi?id=148173
if (exec->hadException()) {
returnedException = exec->exception();
exec->clearException();
return;
}
}
CodeCache::CodeBlockKey CodeCache::makeCodeBlockKey(const SourceCode& source, CodeCache::CodeType type, JSParserStrictness strictness)
{
return std::make_pair(source.toString(), (type << 1) | strictness);
}
CodeCache::GlobalFunctionKey CodeCache::makeGlobalFunctionKey(const SourceCode& source, const String& name)
{
return GlobalFunctionKey(source.toString(), name);
}
