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// Copyright 2020 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
namespace internal {
namespace runtime {
extern runtime GetTemplateObject(implicit context: Context)(
TemplateObjectDescription, SharedFunctionInfo, Smi): JSAny;
}
builtin GetTemplateObject(
context: Context, shared: SharedFunctionInfo,
description: TemplateObjectDescription, slot: uintptr,
maybeFeedbackVector: FeedbackVector|Undefined): JSArray {
// TODO(jgruber): Consider merging with the GetTemplateObject bytecode
// handler; the current advantage of the split implementation is that the
// bytecode can skip most work if feedback exists.
try {
const vector =
Cast<FeedbackVector>(maybeFeedbackVector) otherwise CallRuntime;
return Cast<JSArray>(ic::LoadFeedbackVectorSlot(vector, slot))
otherwise CallRuntime;
} label CallRuntime deferred {
const result = UnsafeCast<JSArray>(runtime::GetTemplateObject(
description, shared, Convert<Smi>(Signed(slot))));
const vector =
Cast<FeedbackVector>(maybeFeedbackVector) otherwise return result;
ic::StoreFeedbackVectorSlot(vector, slot, result);
return result;
}
}
} // namespace internal
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