void JSFunction::put(JSCell* cell, ExecState* exec, PropertyName propertyName, JSValue value, PutPropertySlot& slot)
{
JSFunction* thisObject = jsCast<JSFunction*>(cell);
if (thisObject->isHostFunction()) {
Base::put(thisObject, exec, propertyName, value, slot);
return;
}
if (propertyName == exec->propertyNames().prototype) {
// Make sure prototype has been reified, such that it can only be overwritten
// following the rules set out in ECMA-262 8.12.9.
PropertySlot slot;
thisObject->methodTable()->getOwnPropertySlot(thisObject, exec, propertyName, slot);
thisObject->m_allocationProfile.clear();
thisObject->m_allocationProfileWatchpoint.notifyWrite();
// Don't allow this to be cached, since a [[Put]] must clear m_allocationProfile.
PutPropertySlot dontCache;
Base::put(thisObject, exec, propertyName, value, dontCache);
return;
}
if (thisObject->jsExecutable()->isStrictMode() && (propertyName == exec->propertyNames().arguments || propertyName == exec->propertyNames().caller)) {
// This will trigger the property to be reified, if this is not already the case!
bool okay = thisObject->hasProperty(exec, propertyName);
ASSERT_UNUSED(okay, okay);
Base::put(thisObject, exec, propertyName, value, slot);
return;
}
if (propertyName == exec->propertyNames().arguments || propertyName == exec->propertyNames().length || propertyName == exec->propertyNames().name || propertyName == exec->propertyNames().caller) {
if (slot.isStrictMode())
throwTypeError(exec, StrictModeReadonlyPropertyWriteError);
return;
}
Base::put(thisObject, exec, propertyName, value, slot);
}
void JSFunction::put(JSCell* cell, ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot& slot)
{
JSFunction* thisObject = jsCast<JSFunction*>(cell);
if (thisObject->isHostFunction()) {
Base::put(thisObject, exec, propertyName, value, slot);
return;
}
if (propertyName == exec->propertyNames().prototype) {
// Make sure prototype has been reified, such that it can only be overwritten
// following the rules set out in ECMA-262 8.12.9.
PropertySlot slot;
thisObject->methodTable()->getOwnPropertySlot(thisObject, exec, propertyName, slot);
}
if (thisObject->jsExecutable()->isStrictMode() && (propertyName == exec->propertyNames().arguments || propertyName == exec->propertyNames().caller)) {
// This will trigger the property to be reified, if this is not already the case!
bool okay = thisObject->hasProperty(exec, propertyName);
ASSERT_UNUSED(okay, okay);
Base::put(thisObject, exec, propertyName, value, slot);
return;
}
if (propertyName == exec->propertyNames().arguments || propertyName == exec->propertyNames().length)
return;
Base::put(thisObject, exec, propertyName, value, slot);
}
