diff options
Diffstat (limited to 'ext/B/B.xs')
| -rw-r--r-- | ext/B/B.xs | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/ext/B/B.xs b/ext/B/B.xs index 937ef2c43f..14bd7163b7 100644 --- a/ext/B/B.xs +++ b/ext/B/B.xs @@ -8,6 +8,7 @@ */ #define PERL_NO_GET_CONTEXT +#define PERL_EXT #include "EXTERN.h" #include "perl.h" #include "XSUB.h" @@ -1342,6 +1343,9 @@ string(o, cv) SV *ret; PPCODE: switch (o->op_type) { + case OP_MULTIDEREF: + ret = unop_aux_stringify(o, cv); + break; default: ret = sv_2mortal(newSVpvn("", 0)); } @@ -1359,9 +1363,105 @@ aux_list(o, cv) B::OP o B::CV cv PPCODE: + PERL_UNUSED_VAR(cv); /* not needed on unthreaded builds */ switch (o->op_type) { default: XSRETURN(0); /* by default, an empty list */ + + case OP_MULTIDEREF: +#ifdef USE_ITHREADS +# define ITEM_SV(item) *av_fetch(comppad, (item)->pad_offset, FALSE); +#else +# define ITEM_SV(item) UNOP_AUX_item_sv(item) +#endif + { + UNOP_AUX_item *items = cUNOP_AUXo->op_aux; + UV actions = items->uv; + UV len = items[-1].uv; + SV *sv; + bool last = 0; + bool is_hash = FALSE; +#ifdef USE_ITHREADS + PADLIST * const padlist = CvPADLIST(cv); + PAD *comppad = comppad = PadlistARRAY(padlist)[1]; +#endif + + EXTEND(SP, len); + PUSHs(sv_2mortal(newSViv(actions))); + + while (!last) { + switch (actions & MDEREF_ACTION_MASK) { + + case MDEREF_reload: + actions = (++items)->uv; + PUSHs(sv_2mortal(newSVuv(actions))); + continue; + + case MDEREF_HV_padhv_helem: + is_hash = TRUE; + case MDEREF_AV_padav_aelem: + PUSHs(sv_2mortal(newSVuv((++items)->pad_offset))); + goto do_elem; + + case MDEREF_HV_gvhv_helem: + is_hash = TRUE; + case MDEREF_AV_gvav_aelem: + sv = ITEM_SV(++items); + PUSHs(make_sv_object(aTHX_ sv)); + goto do_elem; + + case MDEREF_HV_gvsv_vivify_rv2hv_helem: + is_hash = TRUE; + case MDEREF_AV_gvsv_vivify_rv2av_aelem: + sv = ITEM_SV(++items); + PUSHs(make_sv_object(aTHX_ sv)); + goto do_vivify_rv2xv_elem; + + case MDEREF_HV_padsv_vivify_rv2hv_helem: + is_hash = TRUE; + case MDEREF_AV_padsv_vivify_rv2av_aelem: + PUSHs(sv_2mortal(newSVuv((++items)->pad_offset))); + goto do_vivify_rv2xv_elem; + + case MDEREF_HV_pop_rv2hv_helem: + case MDEREF_HV_vivify_rv2hv_helem: + is_hash = TRUE; + do_vivify_rv2xv_elem: + case MDEREF_AV_pop_rv2av_aelem: + case MDEREF_AV_vivify_rv2av_aelem: + do_elem: + switch (actions & MDEREF_INDEX_MASK) { + case MDEREF_INDEX_none: + last = 1; + break; + case MDEREF_INDEX_const: + if (is_hash) { + sv = ITEM_SV(++items); + PUSHs(make_sv_object(aTHX_ sv)); + } + else + PUSHs(sv_2mortal(newSViv((++items)->iv))); + break; + case MDEREF_INDEX_padsv: + PUSHs(sv_2mortal(newSVuv((++items)->pad_offset))); + break; + case MDEREF_INDEX_gvsv: + sv = ITEM_SV(++items); + PUSHs(make_sv_object(aTHX_ sv)); + break; + } + if (actions & MDEREF_FLAG_last) + last = 1; + is_hash = FALSE; + + break; + } /* switch */ + + actions >>= MDEREF_SHIFT; + } /* while */ + XSRETURN(len); + + } /* OP_MULTIDEREF */ } /* switch */ |