| … | |
… | |
| 493 | // we re-bless the reference to get overload and other niceties right |
493 | // we re-bless the reference to get overload and other niceties right |
| 494 | GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 0); |
494 | GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 0); |
| 495 | |
495 | |
| 496 | if (to_json) |
496 | if (to_json) |
| 497 | { |
497 | { |
|
|
498 | int count; |
| 498 | dSP; |
499 | dSP; |
| 499 | |
500 | |
| 500 | ENTER; SAVETMPS; PUSHMARK (SP); |
501 | ENTER; SAVETMPS; PUSHMARK (SP); |
| 501 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv))); |
502 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv))); |
| 502 | |
503 | |
| 503 | // calling with G_SCALAR ensures that we always get a 1 return value |
504 | // calling with G_SCALAR ensures that we always get a 1 return value |
| 504 | // check anyways. |
|
|
| 505 | PUTBACK; |
505 | PUTBACK; |
| 506 | assert (1 == call_sv ((SV *)GvCV (to_json), G_SCALAR)); |
506 | call_sv ((SV *)GvCV (to_json), G_SCALAR); |
| 507 | SPAGAIN; |
507 | SPAGAIN; |
| 508 | |
508 | |
| 509 | // catch this surprisingly common error |
509 | // catch this surprisingly common error |
| 510 | if (SvROK (TOPs) && SvRV (TOPs) == sv) |
510 | if (SvROK (TOPs) && SvRV (TOPs) == sv) |
| 511 | croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv))); |
511 | croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv))); |
