eval_pv eval_sv call_sv call_pv call_argv call_method load_module vload_module G_METHOD

/* Replace: 1 */ __UNDEFINED__ call_sv perl_call_sv __UNDEFINED__ call_pv perl_call_pv __UNDEFINED__ call_argv perl_call_argv __UNDEFINED__ call_method perl_call_method

__UNDEFINED__ eval_sv perl_eval_sv /* Replace: 0 */

__UNDEFINED__ PERL_LOADMOD_DENY 0x1 __UNDEFINED__ PERL_LOADMOD_NOIMPORT 0x2 __UNDEFINED__ PERL_LOADMOD_IMPORT_OPS 0x4

#ifndef G_METHOD # define G_METHOD 64 # ifdef call_sv # undef call_sv # endif # if { VERSION < 5.6.0 } # define call_sv(sv, flags) ((flags) & G_METHOD ? perl_call_method((char *) SvPV_nolen_const(sv), \ (flags) & ~G_METHOD) : perl_call_sv(sv, flags)) # else # define call_sv(sv, flags) ((flags) & G_METHOD ? Perl_call_method(aTHX_ (char *) SvPV_nolen_const(sv), \ (flags) & ~G_METHOD) : Perl_call_sv(aTHX_ sv, flags)) # endif #endif

/* Replace perl_eval_pv with eval_pv */

#ifndef eval_pv #if { NEED eval_pv }

SV* eval_pv(char *p, I32 croak_on_error) { dSP; SV* sv = newSVpv(p, 0);

PUSHMARK(sp);
eval_sv(sv, G_SCALAR);
SvREFCNT_dec(sv);

SPAGAIN;
sv = POPs;
PUTBACK;

if (croak_on_error && SvTRUE(GvSV(errgv)))
    croak(SvPVx(GvSV(errgv), na));

return sv;
}

#endif #endif

#ifndef vload_module #if { NEED vload_module }

void vload_module(U32 flags, SV *name, SV *ver, va_list *args) { dTHR; dVAR; OP *veop, *imop;

OP * const modname = newSVOP(OP_CONST, 0, name);
/* 5.005 has a somewhat hacky force_normal that doesn't croak on
   SvREADONLY() if PL_compling is true. Current perls take care in
   ck_require() to correctly turn off SvREADONLY before calling
   force_normal_flags(). This seems a better fix than fudging PL_compling
 */
SvREADONLY_off(((SVOP*)modname)->op_sv);
modname->op_private |= OPpCONST_BARE;
if (ver) {
    veop = newSVOP(OP_CONST, 0, ver);
}
else
    veop = NULL;
if (flags & PERL_LOADMOD_NOIMPORT) {
    imop = sawparens(newNULLLIST());
}
else if (flags & PERL_LOADMOD_IMPORT_OPS) {
    imop = va_arg(*args, OP*);
}
else {
    SV *sv;
    imop = NULL;
    sv = va_arg(*args, SV*);
    while (sv) {
        imop = append_elem(OP_LIST, imop, newSVOP(OP_CONST, 0, sv));
        sv = va_arg(*args, SV*);
    }
}
{
    const line_t ocopline = PL_copline;
    COP * const ocurcop = PL_curcop;
    const int oexpect = PL_expect;

#if { VERSION >= 5.004 } utilize(!(flags & PERL_LOADMOD_DENY), start_subparse(FALSE, 0), veop, modname, imop); #elif { VERSION > 5.003 } utilize(!(flags & PERL_LOADMOD_DENY), start_subparse(), veop, modname, imop); #else utilize(!(flags & PERL_LOADMOD_DENY), start_subparse(), modname, imop); #endif PL_expect = oexpect; PL_copline = ocopline; PL_curcop = ocurcop; } }

#endif #endif

#ifndef load_module #if { NEED load_module }

void load_module(U32 flags, SV *name, SV *ver, ...) { va_list args; va_start(args, ver); vload_module(flags, name, ver, &args); va_end(args); }

#endif #endif

#define NEED_eval_pv #define NEED_load_module #define NEED_vload_module

I32 G_SCALAR() CODE: RETVAL = G_SCALAR; OUTPUT: RETVAL

I32 G_ARRAY() CODE: RETVAL = G_ARRAY; OUTPUT: RETVAL

I32 G_DISCARD() CODE: RETVAL = G_DISCARD; OUTPUT: RETVAL

void eval_sv(sv, flags) SV* sv I32 flags PREINIT: I32 i; PPCODE: PUTBACK; i = eval_sv(sv, flags); SPAGAIN; EXTEND(SP, 1); mPUSHi(i);

void eval_pv(p, croak_on_error) char* p I32 croak_on_error PPCODE: PUTBACK; EXTEND(SP, 1); PUSHs(eval_pv(p, croak_on_error));

void call_sv(sv, flags, ...) SV* sv I32 flags PREINIT: I32 i; PPCODE: for (i=0; i<items-2; i++) ST(i) = ST(i+2); /* pop first two args */ PUSHMARK(SP); SP += items - 2; PUTBACK; i = call_sv(sv, flags); SPAGAIN; EXTEND(SP, 1); mPUSHi(i);

void call_pv(subname, flags, ...) char* subname I32 flags PREINIT: I32 i; PPCODE: for (i=0; i<items-2; i++) ST(i) = ST(i+2); /* pop first two args */ PUSHMARK(SP); SP += items - 2; PUTBACK; i = call_pv(subname, flags); SPAGAIN; EXTEND(SP, 1); mPUSHi(i);

void call_argv(subname, flags, ...) char* subname I32 flags PREINIT: I32 i; char *args[8]; PPCODE: if (items > 8) /* play safe */ XSRETURN_UNDEF; for (i=2; i<items; i++) args[i-2] = SvPV_nolen(ST(i)); args[items-2] = NULL; PUTBACK; i = call_argv(subname, flags, args); SPAGAIN; EXTEND(SP, 1); mPUSHi(i);

void call_method(methname, flags, ...) char* methname I32 flags PREINIT: I32 i; PPCODE: for (i=0; i<items-2; i++) ST(i) = ST(i+2); /* pop first two args */ PUSHMARK(SP); SP += items - 2; PUTBACK; i = call_method(methname, flags); SPAGAIN; EXTEND(SP, 1); mPUSHi(i);

void call_sv_G_METHOD(sv, flags, ...) SV* sv I32 flags PREINIT: I32 i; PPCODE: for (i=0; i<items-2; i++) ST(i) = ST(i+2); /* pop first two args */ PUSHMARK(SP); SP += items - 2; PUTBACK; i = call_sv(sv, flags | G_METHOD); SPAGAIN; EXTEND(SP, 1); mPUSHi(i);

void load_module(flags, name, version, ...) U32 flags SV *name SV *version CODE: /* Both SV parameters are donated to the ops built inside load_module, so we need to bump the refcounts. */ Perl_load_module(aTHX_ flags, SvREFCNT_inc_simple(name), SvREFCNT_inc_simple(version), NULL);

sub eq_array { my($a, $b) = @_; join(':', @$a) eq join(':', @$b); }

sub f { shift; unshift @_, 'b'; pop @_; @_, defined wantarray ? wantarray ? 'x' : 'y' : 'z'; }

my $obj = bless [], 'Foo';

sub Foo::meth { return 'bad_self' unless @_ && ref $_[0] && ref($_[0]) eq 'Foo'; shift; shift; unshift @_, 'b'; pop @_; @_, defined wantarray ? wantarray ? 'x' : 'y' : 'z'; }

my $test;

for $test ( # flags args expected description [ &Devel::PPPort::G_SCALAR, [ ], [ qw(y 1) ], '0 args, G_SCALAR' ], [ &Devel::PPPort::G_SCALAR, [ qw(a p q) ], [ qw(y 1) ], '3 args, G_SCALAR' ], [ &Devel::PPPort::G_ARRAY, [ ], [ qw(x 1) ], '0 args, G_ARRAY' ], [ &Devel::PPPort::G_ARRAY, [ qw(a p q) ], [ qw(b p x 3) ], '3 args, G_ARRAY' ], [ &Devel::PPPort::G_DISCARD, [ ], [ qw(0) ], '0 args, G_DISCARD' ], [ &Devel::PPPort::G_DISCARD, [ qw(a p q) ], [ qw(0) ], '3 args, G_DISCARD' ], ) { my ($flags, $args, $expected, $description) = @$test; print "# --- $description ---\n"; ok(eq_array( [ &Devel::PPPort::call_sv(\&f, $flags, @$args) ], $expected)); ok(eq_array( [ &Devel::PPPort::call_sv(*f, $flags, @$args) ], $expected)); ok(eq_array( [ &Devel::PPPort::call_sv('f', $flags, @$args) ], $expected)); ok(eq_array( [ &Devel::PPPort::call_pv('f', $flags, @$args) ], $expected)); ok(eq_array( [ &Devel::PPPort::call_argv('f', $flags, @$args) ], $expected)); ok(eq_array( [ &Devel::PPPort::eval_sv("f(qw(@$args))", $flags) ], $expected)); ok(eq_array( [ &Devel::PPPort::call_method('meth', $flags, $obj, @$args) ], $expected)); ok(eq_array( [ &Devel::PPPort::call_sv_G_METHOD('meth', $flags, $obj, @$args) ], $expected)); };

ok(&Devel::PPPort::eval_pv('f()', 0), 'y'); ok(&Devel::PPPort::eval_pv('f(qw(a b c))', 0), 'y');

ok(!defined $::{'less::'}, 1, "Hadn't loaded less yet"); Devel::PPPort::load_module(0, "less", undef); ok(defined $::{'less::'}, 1, "Have now loaded less");

cpanm Devel::PPPort

perl -MCPAN -e shell
install Devel::PPPort