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-rw-r--r--hv.h39
1 files changed, 22 insertions, 17 deletions
diff --git a/hv.h b/hv.h
index faa4bddbe6..399a7dfef7 100644
--- a/hv.h
+++ b/hv.h
@@ -72,16 +72,21 @@ struct mro_meta {
Don't access this directly.
*/
+union _xhvnameu {
+ HEK *xhvnameu_name; /* When xhv_name_count is 0 */
+ HEK **xhvnameu_names; /* When xhv_name_count is non-0 */
+};
+
struct xpvhv_aux {
- HEK *xhv_name; /* name, if a symbol table */
+ union _xhvnameu xhv_name_u; /* name, if a symbol table */
AV *xhv_backreferences; /* back references for weak references */
HE *xhv_eiter; /* current entry of iterator */
I32 xhv_riter; /* current root of iterator */
-/* Concerning xhv_name_count: When non-zero, xhv_name is actually a pointer
+/* Concerning xhv_name_count: When non-zero, xhv_name_u contains a pointer
* to an array of HEK pointers, this being the length. The first element is
* the name of the stash, which may be NULL. If xhv_name_count is positive,
* then *xhv_name is one of the effective names. If xhv_name_count is nega-
- * tive, then xhv_name[1] is the first effective name.
+ * tive, then xhv_name_u.xhvnameu_names[1] is the first effective name.
*/
I32 xhv_name_count;
struct mro_meta *xhv_mro_meta;
@@ -271,35 +276,35 @@ C<SV*>.
/* FIXME - all of these should use a UTF8 aware API, which should also involve
getting the length. */
-#define HvNAME_HEK_NN(hv) \
- ( \
- HvAUX(hv)->xhv_name_count \
- ? *(HEK **)HvAUX(hv)->xhv_name \
- : HvAUX(hv)->xhv_name \
+#define HvNAME_HEK_NN(hv) \
+ ( \
+ HvAUX(hv)->xhv_name_count \
+ ? *HvAUX(hv)->xhv_name_u.xhvnameu_names \
+ : HvAUX(hv)->xhv_name_u.xhvnameu_name \
)
/* This macro may go away without notice. */
#define HvNAME_HEK(hv) \
- (SvOOK(hv) && HvAUX(hv)->xhv_name ? HvNAME_HEK_NN(hv) : NULL)
+ (SvOOK(hv) && HvAUX(hv)->xhv_name_u.xhvnameu_name ? HvNAME_HEK_NN(hv) : NULL)
#define HvNAME_get(hv) \
- ((SvOOK(hv) && (HvAUX(hv)->xhv_name) && HvNAME_HEK_NN(hv)) \
+ ((SvOOK(hv) && HvAUX(hv)->xhv_name_u.xhvnameu_name && HvNAME_HEK_NN(hv)) \
? HEK_KEY(HvNAME_HEK_NN(hv)) : NULL)
#define HvNAMELEN_get(hv) \
- ((SvOOK(hv) && (HvAUX(hv)->xhv_name) && HvNAME_HEK_NN(hv)) \
+ ((SvOOK(hv) && HvAUX(hv)->xhv_name_u.xhvnameu_name && HvNAME_HEK_NN(hv)) \
? HEK_LEN(HvNAME_HEK_NN(hv)) : 0)
#define HvENAME_HEK_NN(hv) \
( \
- HvAUX(hv)->xhv_name_count > 0 ? *(HEK **)HvAUX(hv)->xhv_name : \
- HvAUX(hv)->xhv_name_count < -1 ? ((HEK **)HvAUX(hv)->xhv_name)[1] : \
+ HvAUX(hv)->xhv_name_count > 0 ? HvAUX(hv)->xhv_name_u.xhvnameu_names[0] : \
+ HvAUX(hv)->xhv_name_count < -1 ? HvAUX(hv)->xhv_name_u.xhvnameu_names[1] : \
HvAUX(hv)->xhv_name_count == -1 ? NULL : \
- HvAUX(hv)->xhv_name \
+ HvAUX(hv)->xhv_name_u.xhvnameu_name \
)
#define HvENAME_HEK(hv) \
- (SvOOK(hv) && HvAUX(hv)->xhv_name ? HvENAME_HEK_NN(hv) : NULL)
+ (SvOOK(hv) && HvAUX(hv)->xhv_name_u.xhvnameu_name ? HvENAME_HEK_NN(hv) : NULL)
#define HvENAME_get(hv) \
- ((SvOOK(hv) && (HvAUX(hv)->xhv_name) && HvENAME_HEK_NN(hv)) \
+ ((SvOOK(hv) && HvAUX(hv)->xhv_name_u.xhvnameu_name && HvENAME_HEK_NN(hv)) \
? HEK_KEY(HvENAME_HEK_NN(hv)) : NULL)
#define HvENAMELEN_get(hv) \
- ((SvOOK(hv) && (HvAUX(hv)->xhv_name) && HvENAME_HEK_NN(hv)) \
+ ((SvOOK(hv) && HvAUX(hv)->xhv_name_u.xhvnameu_name && HvENAME_HEK_NN(hv)) \
? HEK_LEN(HvENAME_HEK_NN(hv)) : 0)
/* the number of keys (including any placeholers) */