summaryrefslogtreecommitdiffstats
path: root/js/src/vm/PlainObject-inl.h
diff options
context:
space:
mode:
Diffstat (limited to 'js/src/vm/PlainObject-inl.h')
-rw-r--r--js/src/vm/PlainObject-inl.h89
1 files changed, 89 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..496b10c3d5
--- /dev/null
+++ b/js/src/vm/PlainObject-inl.h
@@ -0,0 +1,89 @@
+/* -*- 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);
+
+ return NativeObject::create<PlainObject>(cx, kind, heap, shape);
+}
+
+/* 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