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Identify.xs  view on Meta::CPAN

MODULE = Sub::Identify   PACKAGE = Sub::Identify

PROTOTYPES: ENABLE

void
get_code_info(coderef)
    SV* coderef
    PREINIT:
        char* name;
        char* pkg;
    PPCODE:
        if (SvOK(coderef) && SvROK(coderef) && SvTYPE(SvRV(coderef)) == SVt_PVCV) {
            coderef = SvRV(coderef);
            if (CvGV(coderef)) {
                name = GvNAME( CvGV(coderef) );
                pkg = HvNAME( GvSTASH(CvGV(coderef)) );
                EXTEND(SP, 2);
                PUSHs(sv_2mortal(newSVpvn(pkg, strlen(pkg))));
                PUSHs(sv_2mortal(newSVpvn(name, strlen(name))));
            }
            else {
                /* sub is being compiled: bail out and return nothing. */
            }
        }

void
get_code_location(coderef)
    SV* coderef
    PREINIT:
        char* file;
        line_t line;
    PPCODE:
        if (SvOK(coderef) && SvROK(coderef) && SvTYPE(SvRV(coderef)) == SVt_PVCV) {
            coderef = SvRV(coderef);
            if (CvSTART(coderef) && !CvISXSUB(coderef)) {
                file = CvFILE(coderef);
                line = CopLINE((const COP*)CvSTART(coderef));
                EXTEND(SP, 2);
                PUSHs(sv_2mortal(newSVpvn(file, strlen(file))));
                PUSHs(sv_2mortal(newSViv(line)));
            }
        }