Add support for PERL_OP_PARENT

[perl/modules/Lexical-Types.git] / Types.xs

diff --git a/Types.xs b/Types.xs
index 752e3f43d27aab4f5b1de8a8c59d1e70ab91f220..02e5da71947dad06be2ab3c875f8eca5e2550949 100644 (file)
--- a/Types.xs
+++ b/Types.xs
@@ -39,6 +39,10 @@
 # define HvNAMELEN_get(H) strlen(HvNAME_get(H))
 #endif
 
+#ifndef OP_SIBLING
+# define OP_SIBLING(O) ((O)->op_sibling)
+#endif
+
 #ifndef SvREFCNT_inc_simple_void_NN
 # define SvREFCNT_inc_simple_void_NN(S) ((void) SvREFCNT_inc(S))
 #endif
@@ -348,7 +352,13 @@ get_enclosing_cv:
 STATIC SV *lt_tag(pTHX_ SV *value) {
 #define lt_tag(V) lt_tag(aTHX_ (V))
  lt_hint_t *h;
- SV *code = NULL;
+ SV        *code = NULL;
+#if LT_THREADSAFE
+ dMY_CXT;
+
+ if (!MY_CXT.tbl)
+  return newSViv(0);
+#endif /* LT_THREADSAFE */
 
  if (SvROK(value)) {
   value = SvRV(value);
@@ -369,13 +379,10 @@ STATIC SV *lt_tag(pTHX_ SV *value) {
 #endif /* !LT_HINT_STRUCT */
 
 #if LT_THREADSAFE
- {
-  dMY_CXT;
-  /* We only need for the key to be an unique tag for looking up the value later
-   * Allocated memory provides convenient unique identifiers, so that's why we
-   * use the hint as the key itself. */
-  ptable_hints_store(MY_CXT.tbl, h, h);
- }
+ /* We only need for the key to be an unique tag for looking up the value later
+  * Allocated memory provides convenient unique identifiers, so that's why we
+  * use the hint as the key itself. */
+ ptable_hints_store(MY_CXT.tbl, h, h);
 #endif /* LT_THREADSAFE */
 
  return newSViv(PTR2IV(h));
@@ -386,7 +393,10 @@ STATIC SV *lt_detag(pTHX_ const SV *hint) {
  lt_hint_t *h;
 #if LT_THREADSAFE
  dMY_CXT;
-#endif
+
+ if (!MY_CXT.tbl)
+  return NULL;
+#endif /* LT_THREADSAFE */
 
  if (!(hint && SvIOK(hint)))
   return NULL;
@@ -677,7 +687,7 @@ STATIC OP *lt_pp_padrange(pTHX) {
   base  = PL_op->op_targ;
   count = PL_op->op_private & OPpPADRANGE_COUNTMASK;
 
-  for (i = 0, p = roi.padxv_start; i < count && p; ++i, p = p->op_sibling) {
+  for (i = 0, p = roi.padxv_start; i < count && p; ++i, p = OP_SIBLING(p)) {
    lt_op_padxv_info oi;
    if (p->op_type == OP_PADSV && lt_padxv_map_fetch(p, &oi))
     lt_op_padxv_info_call(&oi, PAD_SV(base + i));
@@ -710,7 +720,7 @@ STATIC OP *lt_ck_padany(pTHX_ OP *o) {
  if (stash && (code = lt_hint())) {
   dMY_CXT;
   SV *orig_pkg  = newSVpvn(HvNAME_get(stash), HvNAMELEN_get(stash));
-  SV *orig_meth = MY_CXT.default_meth;
+  SV *orig_meth = MY_CXT.default_meth; /* Guarded by lt_hint() */
   SV *type_pkg  = NULL;
   SV *type_meth = NULL;
   int items;
@@ -796,7 +806,7 @@ STATIC int lt_maybe_padrange_setup(pTHX_ OP *o, const OP *start) {
 
  count = o->op_private & OPpPADRANGE_COUNTMASK;
 
- for (i = 0, p = start; i < count && p; ++i, p = p->op_sibling) {
+ for (i = 0, p = start; i < count && p; ++i, p = OP_SIBLING(p)) {
   if (p->op_type == OP_PADSV) {
    /* In a padrange sequence, either all lexicals are typed, or none are.
     * Thus we can stop at the first padsv op. However, note that these
@@ -849,7 +859,7 @@ STATIC void lt_peep_rec(pTHX_ OP *o, ptable *seen) {
      /* A padrange op is guaranteed to have previously been a pushmark.
       * Moreover, for non-special padrange ops (i.e. that aren't for
       * my (...) = @_), the original padxv ops are its siblings. */
-     lt_maybe_padrange_setup(o, o->op_sibling);
+     lt_maybe_padrange_setup(o, OP_SIBLING(o));
     }
     break;
    case OP_AASSIGN: {
@@ -862,7 +872,7 @@ STATIC void lt_peep_rec(pTHX_ OP *o, ptable *seen) {
                           && op->op_flags & OPf_SPECIAL) {
      const OP *start = cUNOPx(cBINOPo->op_last)->op_first;
      if (start->op_type == OP_PUSHMARK)
-      start = start->op_sibling;
+      start = OP_SIBLING(start);
      lt_maybe_padrange_setup(op, start);
     }
     break;
@@ -914,9 +924,11 @@ STATIC void lt_peep(pTHX_ OP *o) {
 
  lt_old_peep(aTHX_ o);
 
- ptable_seen_clear(seen);
- lt_peep_rec(o);
- ptable_seen_clear(seen);
+ if (seen) {
+  ptable_seen_clear(seen);
+  lt_peep_rec(o);
+  ptable_seen_clear(seen);
+ }
 }
 
 /* --- Interpreter setup/teardown ------------------------------------------ */