Explicitely pass the flags to vmg_cb_call(). Also pass data in the va_args

[perl/modules/Variable-Magic.git] / Magic.xs

diff --git a/Magic.xs b/Magic.xs
index f034a280440aecd63b249819f5665606db2fc9d1..3b9adfc1a22f2edb11a471f9c7f4ac61edd912ad 100644 (file)
--- a/Magic.xs
+++ b/Magic.xs
@@ -552,32 +552,37 @@ STATIC SV *vmg_op_info(pTHX_ unsigned int opinfo) {
 
 /* ... svt callbacks ....................................................... */
 
+#define VMG_CB_CALL_SET_RET(D) \
+ {            \
+  SV *svr;    \
+  SPAGAIN;    \
+  svr = POPs; \
+  ret = SvOK(svr) ? SvIV(svr) : (D); \
+  PUTBACK;    \
+ }
+
 #define VMG_CB_CALL_ARGS_MASK  15
 #define VMG_CB_CALL_ARGS_SHIFT 4
 #define VMG_CB_CALL_OPINFO     (VMG_OP_INFO_NAME|VMG_OP_INFO_OBJECT)
-#define VMG_CB_CALL_EVAL       4
 
-STATIC int vmg_cb_call(pTHX_ SV *cb, SV *sv, SV *data, unsigned int flags, ...){
+STATIC int vmg_cb_call(pTHX_ SV *cb, unsigned int flags, SV *sv, ...) {
  va_list ap;
- SV *svr;
  int ret;
- unsigned int i, args, opinfo, eval;
+ unsigned int i, args, opinfo;
 
  dSP;
 
  args    = flags & VMG_CB_CALL_ARGS_MASK;
  flags >>= VMG_CB_CALL_ARGS_SHIFT;
  opinfo  = flags & VMG_CB_CALL_OPINFO;
- eval    = flags & VMG_CB_CALL_EVAL ? G_EVAL : 0;
 
  ENTER;
  SAVETMPS;
 
  PUSHMARK(SP);
- EXTEND(SP, args + 2);
+ EXTEND(SP, args + 1);
  PUSHs(sv_2mortal(newRV_inc(sv)));
- PUSHs(data ? data : &PL_sv_undef);
- va_start(ap, flags);
+ va_start(ap, sv);
  for (i = 0; i < args; ++i) {
   SV *sva = va_arg(ap, SV *);
   PUSHs(sva ? sva : &PL_sv_undef);
@@ -587,14 +592,9 @@ STATIC int vmg_cb_call(pTHX_ SV *cb, SV *sv, SV *data, unsigned int flags, ...){
   XPUSHs(vmg_op_info(opinfo));
  PUTBACK;
 
- call_sv(cb, G_SCALAR | eval);
+ call_sv(cb, G_SCALAR);
 
- SPAGAIN;
- if (eval && IN_PERL_COMPILETIME && SvTRUE(ERRSV))
-  ++PL_error_count;
- svr = POPs;
- ret = SvOK(svr) ? SvIV(svr) : 0;
- PUTBACK;
+ VMG_CB_CALL_SET_RET(0);
 
  FREETMPS;
  LEAVE;
@@ -602,27 +602,24 @@ STATIC int vmg_cb_call(pTHX_ SV *cb, SV *sv, SV *data, unsigned int flags, ...){
  return ret;
 }
 
-#define vmg_cb_call1(I, S, D) \
-        vmg_cb_call(aTHX_ (I), (S), (D), (flags << VMG_CB_CALL_ARGS_SHIFT))
-#define vmg_cb_call2(I, S, D, S2) \
-        vmg_cb_call(aTHX_ (I), (S), (D), ((flags << VMG_CB_CALL_ARGS_SHIFT) | 1), (S2))
-#define vmg_cb_call3(I, S, D, S2, S3) \
-        vmg_cb_call(aTHX_ (I), (S), (D), ((flags << VMG_CB_CALL_ARGS_SHIFT) | 2), (S2), (S3))
+#define vmg_cb_call1(I, F, S, A1) \
+        vmg_cb_call(aTHX_ (I), (((F) << VMG_CB_CALL_ARGS_SHIFT) | 1), (S), (A1))
+#define vmg_cb_call2(I, F, S, A1, A2) \
+        vmg_cb_call(aTHX_ (I), (((F) << VMG_CB_CALL_ARGS_SHIFT) | 2), (S), (A1), (A2))
+#define vmg_cb_call3(I, F, S, A1, A2, A3) \
+        vmg_cb_call(aTHX_ (I), (((F) << VMG_CB_CALL_ARGS_SHIFT) | 3), (S), (A1), (A2), (A3))
 
 STATIC int vmg_svt_get(pTHX_ SV *sv, MAGIC *mg) {
  const MGWIZ *w = SV2MGWIZ(mg->mg_ptr);
- unsigned int flags = w->opinfo;
- return vmg_cb_call1(w->cb_get, sv, mg->mg_obj);
+ return vmg_cb_call1(w->cb_get, w->opinfo, sv, mg->mg_obj);
 }
 
 STATIC int vmg_svt_set(pTHX_ SV *sv, MAGIC *mg) {
  const MGWIZ *w = SV2MGWIZ(mg->mg_ptr);
- unsigned int flags = w->opinfo;
- return vmg_cb_call1(w->cb_set, sv, mg->mg_obj);
+ return vmg_cb_call1(w->cb_set, w->opinfo, sv, mg->mg_obj);
 }
 
 STATIC U32 vmg_svt_len(pTHX_ SV *sv, MAGIC *mg) {
- SV *svr;
  const MGWIZ *w = SV2MGWIZ(mg->mg_ptr);
  unsigned int opinfo = w->opinfo;
  U32 len, ret;
@@ -658,10 +655,7 @@ STATIC U32 vmg_svt_len(pTHX_ SV *sv, MAGIC *mg) {
 
  call_sv(w->cb_len, G_SCALAR);
 
- SPAGAIN;
- svr = POPs;
- ret = SvOK(svr) ? SvUV(svr) : len;
- PUTBACK;
+ VMG_CB_CALL_SET_RET(len);
 
  FREETMPS;
  LEAVE;
@@ -671,24 +665,24 @@ STATIC U32 vmg_svt_len(pTHX_ SV *sv, MAGIC *mg) {
 
 STATIC int vmg_svt_clear(pTHX_ SV *sv, MAGIC *mg) {
  const MGWIZ *w = SV2MGWIZ(mg->mg_ptr);
- unsigned int flags = w->opinfo;
- return vmg_cb_call1(w->cb_clear, sv, mg->mg_obj);
+ return vmg_cb_call1(w->cb_clear, w->opinfo, sv, mg->mg_obj);
 }
 
 STATIC int vmg_svt_free(pTHX_ SV *sv, MAGIC *mg) {
  const MGWIZ *w;
- unsigned int flags;
+ unsigned int had_err, has_err, flags = G_SCALAR | G_EVAL;
  int ret = 0;
 
+ dSP;
+
  /* Don't even bother if we are in global destruction - the wizard is prisoner
   * of circular references and we are way beyond user realm */
  if (PL_dirty)
   return 0;
 
  w = SV2MGWIZ(mg->mg_ptr);
- flags = w->opinfo | VMG_CB_CALL_EVAL;
 
- /* So that it survives the temp cleanup in vmg_cb_call */
+ /* So that it survives the temp cleanup below */
  SvREFCNT_inc(sv);
 
 #if !VMG_HAS_PERL_MAINT(5, 11, 0, 32686)
@@ -698,7 +692,40 @@ STATIC int vmg_svt_free(pTHX_ SV *sv, MAGIC *mg) {
  SvMAGIC_set(sv, mg);
 #endif
 
- ret = vmg_cb_call1(w->cb_free, sv, mg->mg_obj);
+ ENTER;
+ SAVETMPS;
+
+ PUSHMARK(SP);
+ EXTEND(SP, 2);
+ PUSHs(sv_2mortal(newRV_inc(sv)));
+ PUSHs(mg->mg_obj ? mg->mg_obj : &PL_sv_undef);
+ if (w->opinfo)
+  XPUSHs(vmg_op_info(w->opinfo));
+ PUTBACK;
+
+ had_err = SvTRUE(ERRSV);
+ if (had_err)
+  flags |= G_KEEPERR;
+
+ call_sv(w->cb_free, flags);
+
+ has_err = SvTRUE(ERRSV);
+ if (IN_PERL_COMPILETIME && !had_err && has_err)
+  ++PL_error_count;
+
+ VMG_CB_CALL_SET_RET(0);
+
+ FREETMPS;
+ LEAVE;
+
+ if (has_err) {
+  /* Get the eval context that was pushed by call_sv, and fake an entry for the
+   * namesv, as die_where will need it to be non NULL later */
+  PERL_CONTEXT *cx = cxstack + cxstack_ix + 1;
+  if (!cx->blk_eval.old_namesv)
+   cx->blk_eval.old_namesv
+                 = sv_2mortal(newSVpvn_share("Variable/Magic/DUMMY.pm", 23, 0));
+ }
 
  /* Calling SvREFCNT_dec() will trigger destructors in an infinite loop, so
   * we have to rely on SvREFCNT() being a lvalue. Heck, even the core does it */
@@ -719,7 +746,6 @@ STATIC int vmg_svt_copy(pTHX_ SV *sv, MAGIC *mg, SV *nsv, const char *key,
  ) {
  SV *keysv;
  const MGWIZ *w = SV2MGWIZ(mg->mg_ptr);
- unsigned int flags = w->opinfo;
  int ret;
 
  if (keylen == HEf_SVKEY) {
@@ -728,7 +754,7 @@ STATIC int vmg_svt_copy(pTHX_ SV *sv, MAGIC *mg, SV *nsv, const char *key,
   keysv = newSVpvn(key, keylen);
  }
 
- ret = vmg_cb_call3(w->cb_copy, sv, mg->mg_obj, keysv, nsv);
+ ret = vmg_cb_call3(w->cb_copy, w->opinfo, sv, mg->mg_obj, keysv, nsv);
 
  if (keylen != HEf_SVKEY) {
   SvREFCNT_dec(keysv);
@@ -747,8 +773,7 @@ STATIC int vmg_svt_dup(pTHX_ MAGIC *mg, CLONE_PARAMS *param) {
 #if MGf_LOCAL
 STATIC int vmg_svt_local(pTHX_ SV *nsv, MAGIC *mg) {
  const MGWIZ *w = SV2MGWIZ(mg->mg_ptr);
- unsigned int flags = w->opinfo;
- return vmg_cb_call1(w->cb_local, nsv, mg->mg_obj);
+ return vmg_cb_call1(w->cb_local, w->opinfo, nsv, mg->mg_obj);
 }
 #endif /* MGf_LOCAL */
 
@@ -775,7 +800,6 @@ STATIC I32 vmg_svt_val(pTHX_ IV action, SV *sv) {
  action &= HV_FETCH_ISSTORE | HV_FETCH_ISEXISTS | HV_FETCH_LVALUE | HV_DELETE;
  for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
   const MGWIZ *w;
-  unsigned int flags;
   switch (mg->mg_type) {
    case PERL_MAGIC_ext:
     break;
@@ -788,7 +812,6 @@ STATIC I32 vmg_svt_val(pTHX_ IV action, SV *sv) {
   if (mg->mg_private < SIG_MIN || mg->mg_private > SIG_MAX)
    continue;
   w = SV2MGWIZ(mg->mg_ptr);
-  flags = w->opinfo;
   switch (w->uvar) {
    case 0:
     continue;
@@ -798,18 +821,22 @@ STATIC I32 vmg_svt_val(pTHX_ IV action, SV *sv) {
   }
   switch (action) {
    case 0:
-    if (w->cb_fetch)  { vmg_cb_call2(w->cb_fetch,  sv, mg->mg_obj, key); }
+    if (w->cb_fetch)
+     vmg_cb_call2(w->cb_fetch, w->opinfo, sv, mg->mg_obj, key);
     break;
    case HV_FETCH_ISSTORE:
    case HV_FETCH_LVALUE:
    case (HV_FETCH_ISSTORE|HV_FETCH_LVALUE):
-    if (w->cb_store)  { vmg_cb_call2(w->cb_store,  sv, mg->mg_obj, key); }
+    if (w->cb_store)
+     vmg_cb_call2(w->cb_store, w->opinfo, sv, mg->mg_obj, key);
     break;
    case HV_FETCH_ISEXISTS:
-    if (w->cb_exists) { vmg_cb_call2(w->cb_exists, sv, mg->mg_obj, key); }
+    if (w->cb_exists)
+     vmg_cb_call2(w->cb_exists, w->opinfo, sv, mg->mg_obj, key);
     break;
    case HV_DELETE:
-    if (w->cb_delete) { vmg_cb_call2(w->cb_delete, sv, mg->mg_obj, key); }
+    if (w->cb_delete)
+     vmg_cb_call2(w->cb_delete, w->opinfo, sv, mg->mg_obj, key);
     break;
   }
  }