bool
Rules::changed (DigestAwareReadView const& ledger) const
{
if (! impl_)
return static_cast<bool>(
ledger.digest(keylet::amendments().key));
return impl_->changed(ledger);
}
Impl (DigestAwareReadView const& ledger)
{
auto const k = keylet::amendments();
digest_ = ledger.digest(k.key);
if (! digest_)
return;
auto const sle = ledger.read(k);
if (! sle)
{
// LogicError() ?
return;
}
for (auto const& item :
sle->getFieldV256(sfAmendments))
set_.insert(item);
}
bool
changed (DigestAwareReadView const& ledger) const
{
auto const digest =
ledger.digest(keylet::amendments().key);
if (! digest && ! digest_)
return false;
if (! digest || ! digest_)
return true;
return *digest != *digest_;
}
explicit Impl(
DigestAwareReadView const& ledger,
std::unordered_set<uint256, beast::uhash<>> const& presets)
: presets_(presets)
{
auto const k = keylet::amendments();
digest_ = ledger.digest(k.key);
if (! digest_)
return;
auto const sle = ledger.read(k);
if (! sle)
{
// LogicError() ?
return;
}
for (auto const& item :
sle->getFieldV256(sfAmendments))
set_.insert(item);
}
