From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- js/src/builtin/Boolean-inl.h | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 js/src/builtin/Boolean-inl.h (limited to 'js/src/builtin/Boolean-inl.h') diff --git a/js/src/builtin/Boolean-inl.h b/js/src/builtin/Boolean-inl.h new file mode 100644 index 0000000000..dca2de84f5 --- /dev/null +++ b/js/src/builtin/Boolean-inl.h @@ -0,0 +1,44 @@ +/* -*- 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 builtin_Boolean_inl_h +#define builtin_Boolean_inl_h + +#include "builtin/Boolean.h" + +#include "vm/JSContext.h" +#include "vm/WrapperObject.h" + +namespace js { + +inline bool EmulatesUndefined(JSObject* obj) { + // This may be called off the main thread. It's OK not to expose the object + // here as it doesn't escape. + AutoUnsafeCallWithABI unsafe(UnsafeABIStrictness::AllowPendingExceptions); + JSObject* actual = MOZ_LIKELY(!obj->is()) + ? obj + : UncheckedUnwrapWithoutExpose(obj); + return actual->getClass()->emulatesUndefined(); +} + +inline bool EmulatesUndefinedCheckFuse(JSObject* obj, + size_t fuseValue) { + // This may be called off the main thread. It's OK not to expose the object + // here as it doesn't escape. + AutoUnsafeCallWithABI unsafe(UnsafeABIStrictness::AllowPendingExceptions); + JSObject* actual = MOZ_LIKELY(!obj->is()) + ? obj + : UncheckedUnwrapWithoutExpose(obj); + bool emulatesUndefined = actual->getClass()->emulatesUndefined(); + if (emulatesUndefined) { + MOZ_RELEASE_ASSERT(fuseValue != 0); + } + return emulatesUndefined; +} + +} /* namespace js */ + +#endif /* builtin_Boolean_inl_h */ -- cgit v1.2.3