diff options
Diffstat (limited to 'gcc/cp/friend.c')
| -rw-r--r-- | gcc/cp/friend.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/gcc/cp/friend.c b/gcc/cp/friend.c index 9eec9e4..3815dae 100644 --- a/gcc/cp/friend.c +++ b/gcc/cp/friend.c @@ -24,6 +24,46 @@ along with GCC; see the file COPYING3. If not see /* Friend data structures are described in cp-tree.h. */ + +/* The GLOBAL_FRIEND scope (functions, classes, or templates) is + regarded as a friend of every class. This is only used by libcc1, + to enable GDB's code snippets to access private members without + disabling access control in general, which could cause different + template overload resolution results when accessibility matters + (e.g. tests for an accessible member). */ + +static tree global_friend; + +/* Set the GLOBAL_FRIEND for this compilation session. It might be + set multiple times, but always to the same scope. */ + +void +set_global_friend (tree scope) +{ + gcc_checking_assert (scope != NULL_TREE); + gcc_assert (!global_friend || global_friend == scope); + global_friend = scope; +} + +/* Return TRUE if SCOPE is the global friend. */ + +bool +is_global_friend (tree scope) +{ + gcc_checking_assert (scope != NULL_TREE); + + if (global_friend == scope) + return true; + + if (!global_friend) + return false; + + if (is_specialization_of_friend (global_friend, scope)) + return true; + + return false; +} + /* Returns nonzero if SUPPLICANT is a friend of TYPE. */ int @@ -36,6 +76,9 @@ is_friend (tree type, tree supplicant) if (supplicant == NULL_TREE || type == NULL_TREE) return 0; + if (is_global_friend (supplicant)) + return 1; + declp = DECL_P (supplicant); if (declp) |