/
interpreter.C
270 lines (238 loc) · 8.48 KB
/
interpreter.C
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#include "internal.h"
#include <perl++/perl++.h>
#include <perl++/extend.h>
#define NO_XSLOCKS
#include <XSUB.h>
#include "regex_impl.h"
extern "C" {
void boot_DynaLoader(pTHX_ CV* cv);
static void xs_init(pTHX) {
dXSUB_SYS;
newXS(const_cast<char*>("DynaLoader::boot_DynaLoader"), boot_DynaLoader, const_cast<char*>(__FILE__));
}
}
namespace perl {
namespace {
static const char* args[] = {"", "-ew", "0"};
static int arg_count = sizeof args / sizeof *args;
void terminator() {
PERL_SYS_TERM();
}
void initialize_system() {
static bool inited;
if (!inited) {
const char** aargs PERL_UNUSED_DECL = args;
PERL_SYS_INIT(&arg_count, const_cast<char***>(&aargs));
atexit(terminator);
inited = true;
}
}
interpreter* initialize_interpreter(int argc, const char* argv[]) {
interpreter* interp = perl_alloc();
perl_construct(interp);
PL_exit_flags |= PERL_EXIT_DESTRUCT_END;
PL_perl_destruct_level = 2;
perl_parse(interp, xs_init, argc, const_cast<char**>(argv), NULL);
return interp;
}
interpreter* initialize_interpreter() {
return initialize_interpreter(arg_count, args);
}
}
void noop(PerlInterpreter* ) {
}
void destructor(PerlInterpreter* interp) {
perl_destruct(interp);
perl_free(interp);
}
/*
* Class Interpreter
*/
#define interp raw_interp.get()
Interpreter::Interpreter() : raw_interp(initialize_interpreter(), destructor) {
eval(implementation::to_eval);
}
Interpreter::Interpreter(int argc, const char* argv[]) : raw_interp(initialize_interpreter(argc, argv), destructor) {
eval(implementation::to_eval);
}
Interpreter::Interpreter(interpreter* other, const override&) : raw_interp(other, noop) {
eval(implementation::to_eval);
}
#ifdef MULTIPLICITY
Interpreter Interpreter::clone() const {
return Interpreter(perl_clone(interp, CLONEf_KEEP_PTR_TABLE), override()); // FIXME reference counting
}
#endif
bool operator==(const Interpreter& first, const Interpreter& second) {
return first.raw_interp == second.raw_interp;
}
interpreter* Interpreter::get_interpreter() const {
return interp;
}
Hash::Temp Interpreter::modglobal() const {
return Hash::Temp(raw_interp.get(), PL_modglobal, false);
}
int Interpreter::run() const {
return perl_run(raw_interp.get());
}
Package Interpreter::package(const char* name) const {
return Package(interp, name);
}
void Interpreter::set_context() const {
PERL_SET_CONTEXT(interp);
}
const Array::Temp Interpreter::list() const {
return Array::Temp(interp, newAV(), true);
}
const Hash::Temp Interpreter::hash() const {
return Hash::Temp(interp, newHV(), true);
}
Package Interpreter::use(const char* package_name) const {
load_module(PERL_LOADMOD_NOIMPORT, value_of(package_name).get_SV(true), NULL, NULL);
return package(package_name);
}
Package Interpreter::use(const char* package_name, double version) const {
load_module(PERL_LOADMOD_NOIMPORT, value_of(package_name).get_SV(true), value_of(version).get_SV(true), NULL);
return package(package_name);
}
const Scalar::Temp Interpreter::eval(const char* string) const {
return eval(value_of(string));
}
const Scalar::Temp Interpreter::eval(const Scalar::Base& string) const {
return implementation::Call_stack(interp).eval_scalar(string.get_SV(true));
}
const Array::Temp Interpreter::eval_list(const char* string) const {
return eval_list(value_of(string));
}
const Array::Temp Interpreter::eval_list(const Scalar::Base& string) const {
return implementation::Call_stack(interp).eval_list(string.get_SV(true));
}
Scalar::Temp Interpreter::scalar(const char* name) const {
SV* const ret = get_sv(name, true);
return Scalar::Temp(interp, ret, false);
}
Glob Interpreter::glob(const char* name) const {
GV* const ret = gv_fetchpv(name, GV_ADD, SVt_PV);
return Glob(raw_interp.get(), ret);
}
Array::Temp Interpreter::array(const char* name) const {
AV* const ret = get_av(name, true);
SvGETMAGIC(reinterpret_cast<SV*>(ret));
return Array::Temp(raw_interp.get(), ret, false);
}
Hash::Temp Interpreter::hash(const char* name) const {
HV* const ret = get_hv(name, true);
SvGETMAGIC(reinterpret_cast<SV*>(ret));
return Hash::Temp(raw_interp.get(), ret, false);
}
const Ref<Code>::Temp Interpreter::code(const char* name) const {
CV* const cv = get_cv(name, true);
return Ref<Code>::Temp(raw_interp.get(), newRV_inc((SV*)cv), true);
}
const Regex Interpreter::regex(Raw_string regexp, Raw_string flags) const {
return regex(value_of(regexp), flags);
}
const Regex Interpreter::regex(const String::Value& regexp, Raw_string flags) const {
Scalar::Temp temp = implementation::Call_stack(raw_interp.get()).push(regexp, flags).sub_scalar("Embed::Perlpp::regexp");
return Regex(std::auto_ptr<Regex::Implementation>(new Regex::Implementation(raw_interp.get(), temp.release())));
}
const Scalar::Temp Interpreter::undef() const {
return Scalar::Temp(raw_interp.get(), newSV(0), true);
}
const Integer::Temp Interpreter::value_of(int value) const {
return Integer::Temp(raw_interp.get(), newSViv(value), true);
}
const Uinteger::Temp Interpreter::value_of(unsigned value) const {
return Uinteger::Temp(raw_interp.get(), newSVuv(value), true);
}
const Number::Temp Interpreter::value_of(double value) const {
return Number::Temp(raw_interp.get(), newSVnv(value), true);
}
const String::Temp Interpreter::value_of(const std::string& value) const {
return String::Temp(raw_interp.get(), newSVpvn(value.c_str(), value.length()), true);
}
const String::Temp Interpreter::value_of(Raw_string value) const {
return String::Temp(raw_interp.get(), newSVpvn(value.value, value.length), true);
}
const String::Temp Interpreter::value_of(const char* value) const {
return String::Temp(raw_interp.get(), newSVpvn(value, strlen(value)), true);
}
#undef interp
namespace implementation {
/*
* Class implementation::Class_temp
*/
Class_temp::Class_temp(interpreter* interp, const char* name) : package(interp, name), persistence(false), use_hash(false) {
}
Class_temp& Class_temp::is_persistent(bool _persistence) {
persistence = _persistence;
return *this;
}
Class_temp& Class_temp::uses_hash(bool _use_hash) {
use_hash = _use_hash;
return *this;
}
Class_state::Class_state(const char* _classname, const std::type_info& _type, MGVTBL* _magic_table, bool _is_persistent, bool _use_hash) : classname(_classname), magic_table(_magic_table), type(_type), is_persistent(_is_persistent), use_hash(_use_hash), family() {
family.insert(&type);
}
MGVTBL* get_object_vtbl(const std::type_info& pre_key, int (*destruct_ptr)(pTHX_ SV*, MAGIC*)) {
static boost::ptr_map<const std::type_info*, MGVTBL> table;
const std::type_info* key = &pre_key;
if (table.find(key) == table.end()) {
const MGVTBL tmp = {0, 0, 0, 0, destruct_ptr MAGIC_TAIL};
table.insert(key, new MGVTBL(tmp));
}
return &table[key];
}
}
/*
* Class Package
*/
Package::Package(const Package& other) : interp(other.interp), package_name(other.package_name), stash(other.stash) {
}
Package::Package(interpreter* _interp, const char* _name) : interp(_interp), package_name(_name), stash(gv_stashpv(_name, GV_ADD)) {
}
Package::Package(interpreter* _interp, SV* _name) : interp(_interp), package_name(SvPV_nolen(_name)), stash(gv_stashsv(_name, GV_ADD)) {
}
const std::string& Package::get_name() const {
return package_name;
}
Package::operator const std::string&() const {
return package_name;
}
Scalar::Temp Package::scalar(const char* name) const {
SV* const ret = get_sv((package_name + "::" + name).c_str(), true);
return Scalar::Temp(interp, ret, false);
}
Array::Temp Package::array(const char* name) const {
AV* const ret = get_av((package_name + "::" + name).c_str(), true);
return Array::Temp(interp, ret, false);
}
Hash::Temp Package::hash(const char* name) const {
HV* const ret = get_hv((package_name + "::" + name).c_str(), true);
return Hash::Temp(interp, ret, false);
}
namespace implementation {
Exporter_helper::Exporter_helper(PerlInterpreter* _interp) : interp(_interp), axp(0), package_name(NULL) {
# ifdef dVAR
dVAR;
# endif
dXSARGS;
axp = ax;
if (items != 1)
Perl_die(aTHX_ "Need module as argument for loading\n");
package_name = SvPV_nolen(ST(0));
}
Package Exporter_helper::get_package() {
return Package(interp, package_name);
}
Exporter_helper::~Exporter_helper() {
int ax = axp;
#if PERL_VERSION >= 10
if (PL_unitcheckav)
Perl_call_list(aTHX_ PL_scopestack_ix, PL_unitcheckav);
#endif
XSRETURN_YES;
}
}
}