diff options
Diffstat (limited to 'ext/mro')
| -rw-r--r-- | ext/mro/mro.xs | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/ext/mro/mro.xs b/ext/mro/mro.xs index 3d343d4830..1208c6ca05 100644 --- a/ext/mro/mro.xs +++ b/ext/mro/mro.xs @@ -202,13 +202,23 @@ S_mro_get_linear_isa_c3(pTHX_ HV* stash, U32 level) /* If we had candidates, but nobody won, then the @ISA hierarchy is not C3-incompatible */ if(!winner) { + SV *errmsg; + I32 i; + + errmsg = newSVpvf("Inconsistent hierarchy during C3 merge of class '%s':\n\t" + "current merge results [\n", HEK_KEY(stashhek)); + for (i = 0; i <= av_len(retval); i++) { + SV **elem = av_fetch(retval, i, 0); + sv_catpvf(errmsg, "\t\t%"SVf",\n", SVfARG(*elem)); + } + sv_catpvf(errmsg, "\t]\n\tmerging failed on '%"SVf"'", SVfARG(cand)); + /* we have to do some cleanup before we croak */ SvREFCNT_dec(retval); Safefree(heads); - Perl_croak(aTHX_ "Inconsistent hierarchy during C3 merge of class '%s': " - "merging failed on parent '%"SVf"'", HEK_KEY(stashhek), SVfARG(cand)); + Perl_croak(aTHX_ "%"SVf, SVfARG(errmsg)); } } } |