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29 lines
1.2 KiB
C
29 lines
1.2 KiB
C
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* vim: set ts=8 sts=4 et sw=4 tw=99:
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef vm_SavedStacksInl_h
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#define vm_SavedStacksInl_h
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#include "vm/SavedStacks.h"
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// Assert that if the given object is not null, it's Class is the
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// SavedFrame::class_ or the given object is a cross-compartment or Xray wrapper
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// around such an object.
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//
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// We allow wrappers here because the JSAPI functions for working with
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// SavedFrame objects and the SavedFrame accessors themselves handle wrappers
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// and use the original caller's compartment's principals to determine what
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// level of data to present. Unwrapping and entering the referent's compartment
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// would mess that up. See the module level documentation in
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// `js/src/vm/SavedStacks.h` as well as the comments in `js/src/jsapi.h`.
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inline void
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js::AssertObjectIsSavedFrameOrWrapper(JSContext* cx, HandleObject stack)
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{
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MOZ_ASSERT_IF(stack, js::SavedFrame::isSavedFrameOrWrapperAndNotProto(*stack));
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}
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#endif // vm_SavedStacksInl_h
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