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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/vm/PlainObject-inl.h | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/vm/PlainObject-inl.h')
-rw-r--r-- | js/src/vm/PlainObject-inl.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/js/src/vm/PlainObject-inl.h b/js/src/vm/PlainObject-inl.h new file mode 100644 index 0000000000..2986577d5e --- /dev/null +++ b/js/src/vm/PlainObject-inl.h @@ -0,0 +1,94 @@ +/* -*- 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_PlainObject_inl_h +#define vm_PlainObject_inl_h + +#include "vm/PlainObject.h" + +#include "mozilla/Assertions.h" // MOZ_ASSERT, MOZ_ASSERT_IF +#include "mozilla/Attributes.h" // MOZ_ALWAYS_INLINE + +#include "gc/AllocKind.h" // js::gc::Heap +#include "js/RootingAPI.h" // JS::Handle, JS::Rooted, JS::MutableHandle +#include "js/Value.h" // JS::Value, JS_IS_CONSTRUCTING +#include "vm/JSFunction.h" // JSFunction +#include "vm/JSObject.h" // js::GenericObject, js::NewObjectKind +#include "vm/NativeObject.h" // js::NativeObject::create +#include "vm/Shape.h" // js::Shape + +#include "gc/ObjectKind-inl.h" // js::gc::GetGCObjectKind +#include "vm/JSObject-inl.h" // js::GetInitialHeap, js::NewBuiltinClassInstance +#include "vm/NativeObject-inl.h" // js::NativeObject::{create,setLastProperty} + +/* static */ inline js::PlainObject* js::PlainObject::createWithShape( + JSContext* cx, JS::Handle<SharedShape*> shape, gc::AllocKind kind, + NewObjectKind newKind) { + MOZ_ASSERT(shape->getObjectClass() == &PlainObject::class_); + gc::Heap heap = GetInitialHeap(newKind, &PlainObject::class_); + + MOZ_ASSERT(gc::CanChangeToBackgroundAllocKind(kind, &PlainObject::class_)); + kind = gc::ForegroundToBackgroundAllocKind(kind); + + NativeObject* obj = NativeObject::create(cx, kind, heap, shape); + if (!obj) { + return nullptr; + } + + return &obj->as<PlainObject>(); +} + +/* static */ inline js::PlainObject* js::PlainObject::createWithShape( + JSContext* cx, JS::Handle<SharedShape*> shape, NewObjectKind newKind) { + gc::AllocKind kind = gc::GetGCObjectKind(shape->numFixedSlots()); + return createWithShape(cx, shape, kind, newKind); +} + +/* static */ inline js::PlainObject* js::PlainObject::createWithTemplate( + JSContext* cx, JS::Handle<PlainObject*> templateObject) { + JS::Rooted<SharedShape*> shape(cx, templateObject->sharedShape()); + return createWithShape(cx, shape); +} + +inline js::gc::AllocKind js::PlainObject::allocKindForTenure() const { + gc::AllocKind kind = gc::GetGCObjectFixedSlotsKind(numFixedSlots()); + MOZ_ASSERT(!gc::IsBackgroundFinalized(kind)); + MOZ_ASSERT(gc::CanChangeToBackgroundAllocKind(kind, getClass())); + return gc::ForegroundToBackgroundAllocKind(kind); +} + +namespace js { + +static MOZ_ALWAYS_INLINE bool CreateThis(JSContext* cx, + JS::Handle<JSFunction*> callee, + JS::Handle<JSObject*> newTarget, + NewObjectKind newKind, + JS::MutableHandle<JS::Value> thisv) { + if (callee->constructorNeedsUninitializedThis()) { + thisv.setMagic(JS_UNINITIALIZED_LEXICAL); + return true; + } + + MOZ_ASSERT(thisv.isMagic(JS_IS_CONSTRUCTING)); + + Rooted<SharedShape*> shape(cx, ThisShapeForFunction(cx, callee, newTarget)); + if (!shape) { + return false; + } + + PlainObject* obj = PlainObject::createWithShape(cx, shape, newKind); + if (!obj) { + return false; + } + + MOZ_ASSERT(obj->nonCCWRealm() == callee->realm()); + thisv.setObject(*obj); + return true; +} + +} // namespace js + +#endif // vm_PlainObject_inl_h |