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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=8 sts=2 et sw=2 tw=80:
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef vm_RecordTupleShared_h
#define vm_RecordTupleShared_h
#include "vm/RecordTupleShared.h"
#include "NamespaceImports.h"
#include "builtin/RecordObject.h"
#include "builtin/TupleObject.h"
#include "js/Value.h"
#include "vm/BigIntType.h"
#include "vm/Compartment.h"
#include "vm/GlobalObject.h"
#include "vm/JSObject.h"
#include "vm/NativeObject.h"
#include "gc/Marking-inl.h"
namespace js {
bool IsExtendedPrimitive(const JSObject& obj) {
return obj.is<RecordType>() || obj.is<TupleType>();
}
template <typename T>
JSObject* CopyExtendedPrimitiveHelper(JSContext* cx, HandleObject extPrim) {
MOZ_ASSERT(gc::MaybeForwardedObjectIs<T>(extPrim));
Rooted<T*> in(cx, &extPrim->template as<T>());
Rooted<T*> out(cx);
if (!T::copy(cx, in, &out)) {
return nullptr;
}
return out;
}
JSObject* CopyExtendedPrimitive(JSContext* cx, HandleObject extPrim) {
if (gc::MaybeForwardedObjectIs<RecordType>(extPrim)) {
return CopyExtendedPrimitiveHelper<RecordType>(cx, extPrim);
}
MOZ_ASSERT(gc::MaybeForwardedObjectIs<TupleType>(extPrim));
return CopyExtendedPrimitiveHelper<TupleType>(cx, extPrim);
}
// Returns false if v is not a valid record/tuple element (e.g. it's an Object
// or Symbol
bool CopyRecordTupleElement(JSContext* cx, HandleValue v,
MutableHandleValue out) {
switch (v.type()) {
case JS::ValueType::Double:
case JS::ValueType::Int32:
case JS::ValueType::Undefined:
case JS::ValueType::Boolean: {
out.set(v);
break;
}
case JS::ValueType::String: {
RootedString vStr(cx, v.toString());
JSString* copy = CopyStringPure(cx, vStr);
if (!copy) {
return false;
}
out.setString(copy);
break;
}
case JS::ValueType::BigInt: {
RootedBigInt bi(cx, v.toBigInt());
BigInt* copy = BigInt::copy(cx, bi);
if (!copy) {
return false;
}
out.setBigInt(copy);
break;
}
case JS::ValueType::ExtendedPrimitive: {
RootedObject extPrim(cx, &v.toExtendedPrimitive());
JSObject* copy = CopyExtendedPrimitive(cx, extPrim);
if (!copy) {
return false;
}
out.setExtendedPrimitive(*copy);
break;
}
default:
MOZ_CRASH("CopyRecordTupleElement(): unexpected element type");
}
return true;
}
bool gc::MaybeForwardedIsExtendedPrimitive(const JSObject& obj) {
return MaybeForwardedObjectIs<RecordType>(&obj) ||
MaybeForwardedObjectIs<TupleType>(&obj);
}
bool IsExtendedPrimitiveWrapper(const JSObject& obj) {
return obj.is<RecordObject>() || obj.is<TupleObject>();
}
bool ExtendedPrimitiveGetProperty(JSContext* cx, HandleObject obj,
HandleValue receiver, HandleId id,
MutableHandleValue vp) {
MOZ_ASSERT(IsExtendedPrimitive(*obj));
if (obj->is<RecordType>()) {
if (obj->as<RecordType>().getOwnProperty(cx, id, vp)) {
return true;
}
// If records will not have a null prototype, this should use a mehanism
// similar to tuples.
vp.set(JS::UndefinedValue());
return true;
}
MOZ_ASSERT(obj->is<TupleType>());
if (obj->as<TupleType>().getOwnProperty(id, vp)) {
return true;
}
JSObject* proto = GlobalObject::getOrCreateTuplePrototype(cx, cx->global());
if (!proto) {
return false;
}
Rooted<NativeObject*> rootedProto(cx, &proto->as<NativeObject>());
return NativeGetProperty(cx, rootedProto, receiver, id, vp);
}
} // namespace js
#endif
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