mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-25 22:01:30 +00:00
af2225da89
MozReview-Commit-ID: 9RjVxl4EX8N --HG-- extra : rebase_source : 032c4105bb9177197ec339381ae74275aae0770e extra : source : 95107c3ad9cf5a173a17aee4fcd8635defbf0eb4
58 lines
2.2 KiB
C
58 lines
2.2 KiB
C
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
|
|
* vim: set ts=8 sts=4 et sw=4 tw=99:
|
|
* 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 js_GCAnnotations_h
|
|
#define js_GCAnnotations_h
|
|
|
|
// Set of annotations for the rooting hazard analysis, used to categorize types
|
|
// and functions.
|
|
#ifdef XGILL_PLUGIN
|
|
|
|
// Mark a type as being a GC thing (eg js::gc::Cell has this annotation).
|
|
# define JS_HAZ_GC_THING __attribute__((tag("GC Thing")))
|
|
|
|
// Mark a type as holding a pointer to a GC thing (eg JS::Value has this
|
|
// annotation.)
|
|
# define JS_HAZ_GC_POINTER __attribute__((tag("GC Pointer")))
|
|
|
|
// Mark a type as a rooted pointer, suitable for use on the stack (eg all
|
|
// Rooted<T> instantiations should have this.)
|
|
# define JS_HAZ_ROOTED __attribute__((tag("Rooted Pointer")))
|
|
|
|
// Mark a type as something that should not be held live across a GC, but which
|
|
// is not itself a GC pointer.
|
|
# define JS_HAZ_GC_INVALIDATED __attribute__((tag("Invalidated by GC")))
|
|
|
|
// Mark a type that would otherwise be considered a GC Pointer (eg because it
|
|
// contains a JS::Value field) as a non-GC pointer. It is handled almost the
|
|
// same in the analysis as a rooted pointer, except it will not be reported as
|
|
// an unnecessary root if used across a GC call. This should rarely be used,
|
|
// but makes sense for something like ErrorResult, which only contains a GC
|
|
// pointer when it holds an exception (and it does its own rooting,
|
|
// conditionally.)
|
|
# define JS_HAZ_NON_GC_POINTER __attribute__((tag("Suppressed GC Pointer")))
|
|
|
|
// Mark a function as something that runs a garbage collection, potentially
|
|
// invalidating GC pointers.
|
|
# define JS_HAZ_GC_CALL __attribute__((tag("GC Call")))
|
|
|
|
// Mark an RAII class as suppressing GC within its scope.
|
|
# define JS_HAZ_GC_SUPPRESSED __attribute__((tag("Suppress GC")))
|
|
|
|
#else
|
|
|
|
# define JS_HAZ_GC_THING
|
|
# define JS_HAZ_GC_POINTER
|
|
# define JS_HAZ_ROOTED
|
|
# define JS_HAZ_GC_INVALIDATED
|
|
# define JS_HAZ_NON_GC_POINTER
|
|
# define JS_HAZ_GC_CALL
|
|
# define JS_HAZ_GC_SUPPRESSED
|
|
|
|
#endif
|
|
|
|
#endif /* js_GCAnnotations_h */
|