diff options
Diffstat (limited to 'gcc/objc/objc-act.c')
| -rw-r--r-- | gcc/objc/objc-act.c | 46 |
1 files changed, 33 insertions, 13 deletions
diff --git a/gcc/objc/objc-act.c b/gcc/objc/objc-act.c index 8da5c6b..f5f27ad 100644 --- a/gcc/objc/objc-act.c +++ b/gcc/objc/objc-act.c @@ -8590,25 +8590,45 @@ lookup_objc_ivar (id) return 0; } -/* Parser callbacks. */ +/* Parser callbacks. + Some ObjC keywords are reserved only in a particular context: + in out inout bycopy byref oneway. + We have to save and restore the IDENTIFIER_NODEs that describe + them as keywords, when appropriate. */ + +#define N_PQ 6 +static tree saved_pq[N_PQ]; +static tree saved_not_pq[N_PQ]; +static const char *const pq_strings[N_PQ] = { + "bycopy", "byref", "in", "inout", "oneway", "out" +}; + +void +save_and_forget_protocol_qualifiers () +{ + int i; + for (i = 0; i < N_PQ; i++) + saved_pq[i] = set_identifier (pq_strings[i], NULL_TREE); + + ggc_add_tree_root (saved_pq, N_PQ); + ggc_add_tree_root (saved_not_pq, N_PQ); +} + void forget_protocol_qualifiers () { - C_IS_RESERVED_WORD (ridpointers[(int) RID_IN]) = 0; - C_IS_RESERVED_WORD (ridpointers[(int) RID_OUT]) = 0; - C_IS_RESERVED_WORD (ridpointers[(int) RID_INOUT]) = 0; - C_IS_RESERVED_WORD (ridpointers[(int) RID_BYCOPY]) = 0; - C_IS_RESERVED_WORD (ridpointers[(int) RID_BYREF]) = 0; - C_IS_RESERVED_WORD (ridpointers[(int) RID_ONEWAY]) = 0; + int i; + for (i = 0; i < N_PQ; i++) + { + set_identifier (pq_strings[i], saved_not_pq[i]); + saved_not_pq[i] = NULL_TREE; + } } void remember_protocol_qualifiers () { - C_IS_RESERVED_WORD (ridpointers[(int) RID_IN]) = 1; - C_IS_RESERVED_WORD (ridpointers[(int) RID_OUT]) = 1; - C_IS_RESERVED_WORD (ridpointers[(int) RID_INOUT]) = 1; - C_IS_RESERVED_WORD (ridpointers[(int) RID_BYCOPY]) = 1; - C_IS_RESERVED_WORD (ridpointers[(int) RID_BYREF]) = 1; - C_IS_RESERVED_WORD (ridpointers[(int) RID_ONEWAY]) = 1; + int i; + for (i = 0; i < N_PQ; i++) + saved_not_pq[i] = set_identifier (pq_strings[i], saved_pq[i]); } |