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Bug 1201190 - Part 2: Add MOZ_NON_TEMPORARY_CLASS and MOZ_RAII to mfbt, r=ehsan

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This commit is contained in:
Michael Layzell 2015-09-03 11:31:55 -04:00
parent 60f286057c
commit 849db94515
1 changed files with 14 additions and 0 deletions
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14
mfbt/Attributes.h
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@ -408,6 +408,16 @@
* temporary object. If a member of another class uses this class, or if
* another class inherits from this class, then it is considered to be a heap
* class as well, although this attribute need not be provided in such cases.
* MOZ_NON_TEMPORARY_CLASS: Applies to all classes. Any class with this
* annotation is expected not to live in a temporary. If a member of another
* class uses this class or if another class inherits from this class, then it
* is considered to be a non-temporary class as well, although this attribute
* need not be provided in such cases.
* MOZ_RAII: Applies to all classes. Any class with this annotation is assumed
* to be a RAII guard, which is expected to live on the stack in an automatic
* allocation. It is prohibited from being allocated in a temporary, static
* storage, or on the heap. This is a combination of MOZ_STACK_CLASS and
* MOZ_NON_TEMPORARY_CLASS.
* MOZ_ONLY_USED_TO_AVOID_STATIC_CONSTRUCTORS: Applies to all classes that are
* intended to prevent introducing static initializers. This attribute
* currently makes it a compile-time error to instantiate these classes
@ -487,6 +497,7 @@
# define MOZ_STACK_CLASS __attribute__((annotate("moz_stack_class")))
# define MOZ_NONHEAP_CLASS __attribute__((annotate("moz_nonheap_class")))
# define MOZ_HEAP_CLASS __attribute__((annotate("moz_heap_class")))
# define MOZ_NON_TEMPORARY_CLASS __attribute__((annotate("moz_non_temporary_class")))
# define MOZ_TRIVIAL_CTOR_DTOR __attribute__((annotate("moz_trivial_ctor_dtor")))
# ifdef DEBUG
/* in debug builds, these classes do have non-trivial constructors. */
@ -523,6 +534,7 @@
# define MOZ_STACK_CLASS /* nothing */
# define MOZ_NONHEAP_CLASS /* nothing */
# define MOZ_HEAP_CLASS /* nothing */
# define MOZ_NON_TEMPORARY_CLASS /* nothing */
# define MOZ_TRIVIAL_CTOR_DTOR /* nothing */
# define MOZ_ONLY_USED_TO_AVOID_STATIC_CONSTRUCTORS /* nothing */
# define MOZ_IMPLICIT /* nothing */
@ -540,6 +552,8 @@
# define MOZ_NON_AUTOABLE /* nothing */
#endif /* MOZ_CLANG_PLUGIN */
#define MOZ_RAII MOZ_NON_TEMPORARY_CLASS MOZ_STACK_CLASS
/*
* MOZ_HAVE_REF_QUALIFIERS is defined for compilers that support C++11's rvalue
* qualifier, "&&".