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JSGenerator.cpp
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76 lines (64 loc) · 2.38 KB
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/*
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#include "hermes/VM/JSGenerator.h"
#include "hermes/VM/BuildMetadata.h"
#include "llvh/Support/Debug.h"
#define DEBUG_TYPE "serialize"
namespace hermes {
namespace vm {
//===----------------------------------------------------------------------===//
// class JSGenerator
const ObjectVTable JSGenerator::vt{
VTable(CellKind::GeneratorKind, cellSize<JSGenerator>()),
JSGenerator::_getOwnIndexedRangeImpl,
JSGenerator::_haveOwnIndexedImpl,
JSGenerator::_getOwnIndexedPropertyFlagsImpl,
JSGenerator::_getOwnIndexedImpl,
JSGenerator::_setOwnIndexedImpl,
JSGenerator::_deleteOwnIndexedImpl,
JSGenerator::_checkAllOwnIndexedImpl,
};
void GeneratorBuildMeta(const GCCell *cell, Metadata::Builder &mb) {
mb.addJSObjectOverlapSlots(JSObject::numOverlapSlots<JSGenerator>());
ObjectBuildMeta(cell, mb);
const auto *self = static_cast<const JSGenerator *>(cell);
mb.addField("innerFunction", &self->innerFunction_);
}
#ifdef HERMESVM_SERIALIZE
JSGenerator::JSGenerator(Deserializer &d) : JSObject(d, &vt.base) {
d.readRelocation(&innerFunction_, RelocationKind::GCPointer);
}
void GeneratorSerialize(Serializer &s, const GCCell *cell) {
auto *self = vmcast<const JSGenerator>(cell);
JSObject::serializeObjectImpl(
s, cell, JSObject::numOverlapSlots<JSGenerator>());
s.writeRelocation(self->innerFunction_.get(s.getRuntime()));
s.endObject(cell);
}
void GeneratorDeserialize(Deserializer &d, CellKind kind) {
assert(kind == CellKind::GeneratorKind && "Expected Generator");
void *mem = d.getRuntime()->alloc(cellSize<JSGenerator>());
auto *cell = new (mem) JSGenerator(d);
d.endObject(cell);
}
#endif
CallResult<PseudoHandle<JSGenerator>> JSGenerator::create(
Runtime *runtime,
Handle<GeneratorInnerFunction> innerFunction,
Handle<JSObject> parentHandle) {
JSObjectAlloc<JSGenerator> mem{runtime};
auto self = new (mem) JSGenerator(
runtime,
*parentHandle,
runtime->getHiddenClassForPrototypeRaw(
*parentHandle,
numOverlapSlots<JSGenerator>() + ANONYMOUS_PROPERTY_SLOTS));
self->innerFunction_.set(runtime, *innerFunction, &runtime->getHeap());
return mem.initToPseudoHandle(self);
}
} // namespace vm
} // namespace hermes