本文整理汇总了C++中SymbolTableEntry::notifyWrite方法的典型用法代码示例。如果您正苦于以下问题：C++ SymbolTableEntry::notifyWrite方法的具体用法？C++ SymbolTableEntry::notifyWrite怎么用？C++ SymbolTableEntry::notifyWrite使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类SymbolTableEntry的用法示例。
在下文中一共展示了SymbolTableEntry::notifyWrite方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: slot
// Returns true if we found enough information to terminate optimization.
static inline bool abstractAccess(ExecState* exec, JSScope* scope, const Identifier& ident, GetOrPut getOrPut, size_t depth, bool& needsVarInjectionChecks, ResolveOp& op)
{
if (JSActivation* activation = jsDynamicCast<JSActivation*>(scope)) {
if (ident == exec->propertyNames().arguments) {
// We know the property will be at this activation scope, but we don't know how to cache it.
op = ResolveOp(Dynamic, 0, 0, 0, 0);
return true;
}
SymbolTableEntry entry = activation->symbolTable()->get(ident.impl());
if (entry.isReadOnly() && getOrPut == Put) {
// We know the property will be at this activation scope, but we don't know how to cache it.
op = ResolveOp(Dynamic, 0, 0, 0, 0);
return true;
}
if (!entry.isNull()) {
op = ResolveOp(makeType(ClosureVar, needsVarInjectionChecks), depth, activation->structure(), 0, entry.getIndex());
return true;
}
if (activation->symbolTable()->usesNonStrictEval())
needsVarInjectionChecks = true;
return false;
}
if (JSGlobalObject* globalObject = jsDynamicCast<JSGlobalObject*>(scope)) {
SymbolTableEntry entry = globalObject->symbolTable()->get(ident.impl());
if (!entry.isNull()) {
if (getOrPut == Put) {
if (entry.isReadOnly()) {
// We know the property will be at global scope, but we don't know how to cache it.
op = ResolveOp(Dynamic, 0, 0, 0, 0);
return true;
}
// It's likely that we'll write to this var, so notify now and avoid the overhead of doing so at runtime.
entry.notifyWrite();
}
op = ResolveOp(
makeType(GlobalVar, needsVarInjectionChecks), depth, 0, entry.watchpointSet(),
reinterpret_cast<uintptr_t>(globalObject->registerAt(entry.getIndex()).slot()));
return true;
}
PropertySlot slot(globalObject);
if (!globalObject->getOwnPropertySlot(globalObject, exec, ident, slot)
|| !slot.isCacheableValue()
|| !globalObject->structure()->propertyAccessesAreCacheable()
|| (globalObject->structure()->hasReadOnlyOrGetterSetterPropertiesExcludingProto() && getOrPut == Put)) {
// We know the property will be at global scope, but we don't know how to cache it.
ASSERT(!scope->next());
op = ResolveOp(makeType(GlobalProperty, needsVarInjectionChecks), depth, 0, 0, 0);
return true;
}
op = ResolveOp(makeType(GlobalProperty, needsVarInjectionChecks), depth, globalObject->structure(), 0, slot.cachedOffset());
return true;
}
op = ResolveOp(Dynamic, 0, 0, 0, 0);
return true;
}