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pocketpy/src/pocketpy.h
blueloveTH ada630b2db rename
2023-02-09 12:55:44 +08:00

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#pragma once
#include "vm.h"
#include "compiler.h"
#include "repl.h"
_Code VM::compile(_Str source, _Str filename, CompileMode mode) {
Compiler compiler(this, source.c_str(), filename, mode);
try{
return compiler.compile();
}catch(_Exception& e){
_error(e);
return nullptr;
}
}
#define BIND_NUM_ARITH_OPT(name, op) \
_vm->_bind_methods<1>({"int","float"}, #name, [](VM* vm, const pkpy::Args& args){ \
if(args[0]->is_type(vm->_tp_int) && args[1]->is_type(vm->_tp_int)){ \
return vm->PyInt(vm->PyInt_AS_C(args[0]) op vm->PyInt_AS_C(args[1])); \
}else{ \
return vm->PyFloat(vm->num_to_float(args[0]) op vm->num_to_float(args[1])); \
} \
});
#define BIND_NUM_LOGICAL_OPT(name, op, is_eq) \
_vm->_bind_methods<1>({"int","float"}, #name, [](VM* vm, const pkpy::Args& args){ \
bool _0 = args[0]->is_type(vm->_tp_int) || args[0]->is_type(vm->_tp_float); \
bool _1 = args[1]->is_type(vm->_tp_int) || args[1]->is_type(vm->_tp_float); \
if(!_0 || !_1){ \
if constexpr(is_eq) return vm->PyBool(args[0].get() op args[1].get()); \
vm->typeError("unsupported operand type(s) for " #op ); \
} \
return vm->PyBool(vm->num_to_float(args[0]) op vm->num_to_float(args[1])); \
});
void init_builtins(VM* _vm) {
BIND_NUM_ARITH_OPT(__add__, +)
BIND_NUM_ARITH_OPT(__sub__, -)
BIND_NUM_ARITH_OPT(__mul__, *)
BIND_NUM_LOGICAL_OPT(__lt__, <, false)
BIND_NUM_LOGICAL_OPT(__le__, <=, false)
BIND_NUM_LOGICAL_OPT(__gt__, >, false)
BIND_NUM_LOGICAL_OPT(__ge__, >=, false)
BIND_NUM_LOGICAL_OPT(__eq__, ==, true)
BIND_NUM_LOGICAL_OPT(__ne__, !=, true)
#undef BIND_NUM_ARITH_OPT
#undef BIND_NUM_LOGICAL_OPT
_vm->bind_builtin_func<1>("__sys_stdout_write", [](VM* vm, const pkpy::Args& args) {
(*vm->_stdout) << vm->PyStr_AS_C(args[0]);
return vm->None;
});
_vm->bind_builtin_func<0>("super", [](VM* vm, const pkpy::Args& args) {
auto it = vm->top_frame()->f_locals().find(m_self);
if(it == vm->top_frame()->f_locals().end()) vm->typeError("super() can only be called in a class method");
return vm->new_object(vm->_tp_super, it->second);
});
_vm->bind_builtin_func<1>("eval", [](VM* vm, const pkpy::Args& args) {
_Code code = vm->compile(vm->PyStr_AS_C(args[0]), "<eval>", EVAL_MODE);
return vm->_exec(code, vm->top_frame()->_module, vm->top_frame()->_locals);
});
_vm->bind_builtin_func<1>("exec", [](VM* vm, const pkpy::Args& args) {
_Code code = vm->compile(vm->PyStr_AS_C(args[0]), "<exec>", EXEC_MODE);
vm->_exec(code, vm->top_frame()->_module, vm->top_frame()->_locals);
return vm->None;
});
_vm->bind_builtin_func<-1>("exit", [](VM* vm, const pkpy::Args& args) {
if(args.size() == 0) std::exit(0);
else if(args.size() == 1) std::exit((int)vm->PyInt_AS_C(args[0]));
else vm->typeError("exit() takes at most 1 argument");
return vm->None;
});
_vm->bind_builtin_func<1>("repr", CPP_LAMBDA(vm->asRepr(args[0])));
_vm->bind_builtin_func<1>("hash", CPP_LAMBDA(vm->PyInt(vm->hash(args[0]))));
_vm->bind_builtin_func<1>("len", CPP_LAMBDA(vm->call(args[0], __len__, pkpy::noArg())));
_vm->bind_builtin_func<1>("chr", [](VM* vm, const pkpy::Args& args) {
i64 i = vm->PyInt_AS_C(args[0]);
if (i < 0 || i > 128) vm->valueError("chr() arg not in range(128)");
return vm->PyStr(std::string(1, (char)i));
});
_vm->bind_builtin_func<1>("ord", [](VM* vm, const pkpy::Args& args) {
_Str s = vm->PyStr_AS_C(args[0]);
if (s.size() != 1) vm->typeError("ord() expected an ASCII character");
return vm->PyInt((i64)(s.c_str()[0]));
});
_vm->bind_builtin_func<2>("hasattr", [](VM* vm, const pkpy::Args& args) {
return vm->PyBool(vm->getattr(args[0], vm->PyStr_AS_C(args[1]), false) != nullptr);
});
_vm->bind_builtin_func<3>("setattr", [](VM* vm, const pkpy::Args& args) {
PyVar obj = args[0];
vm->setattr(obj, vm->PyStr_AS_C(args[1]), args[2]);
return vm->None;
});
_vm->bind_builtin_func<2>("getattr", [](VM* vm, const pkpy::Args& args) {
_Str name = vm->PyStr_AS_C(args[1]);
return vm->getattr(args[0], name);
});
_vm->bind_builtin_func<1>("hex", [](VM* vm, const pkpy::Args& args) {
std::stringstream ss;
ss << std::hex << vm->PyInt_AS_C(args[0]);
return vm->PyStr("0x" + ss.str());
});
_vm->bind_builtin_func<1>("dir", [](VM* vm, const pkpy::Args& args) {
std::vector<_Str> names;
for (auto& [k, _] : args[0]->attribs) names.push_back(k);
for (auto& [k, _] : args[0]->type->attribs) {
if (k.find("__") == 0) continue;
if (std::find(names.begin(), names.end(), k) == names.end()) names.push_back(k);
}
PyVarList ret;
for (const auto& name : names) ret.push_back(vm->PyStr(name));
std::sort(ret.begin(), ret.end(), [vm](const PyVar& a, const PyVar& b) {
return vm->PyStr_AS_C(a) < vm->PyStr_AS_C(b);
});
return vm->PyList(ret);
});
_vm->bind_method<0>("object", "__repr__", [](VM* vm, const pkpy::Args& args) {
PyVar _self = args[0];
std::stringstream ss;
ss << std::hex << (uintptr_t)_self.get();
_Str s = "<" + OBJ_TP_NAME(_self) + " object at 0x" + ss.str() + ">";
return vm->PyStr(s);
});
_vm->bind_method<1>("object", "__eq__", CPP_LAMBDA(vm->PyBool(args[0] == args[1])));
_vm->bind_method<1>("object", "__ne__", CPP_LAMBDA(vm->PyBool(args[0] != args[1])));
_vm->bind_static_method<1>("type", "__new__", CPP_LAMBDA(args[0]->type));
_vm->bind_static_method<-1>("range", "__new__", [](VM* vm, const pkpy::Args& args) {
_Range r;
switch (args.size()) {
case 1: r.stop = vm->PyInt_AS_C(args[0]); break;
case 2: r.start = vm->PyInt_AS_C(args[0]); r.stop = vm->PyInt_AS_C(args[1]); break;
case 3: r.start = vm->PyInt_AS_C(args[0]); r.stop = vm->PyInt_AS_C(args[1]); r.step = vm->PyInt_AS_C(args[2]); break;
default: vm->typeError("expected 1-3 arguments, but got " + std::to_string(args.size()));
}
return vm->PyRange(r);
});
_vm->bind_method<0>("range", "__iter__", CPP_LAMBDA(
vm->PyIter(pkpy::make_shared<BaseIterator, RangeIterator>(vm, args[0]))
));
_vm->bind_method<0>("NoneType", "__repr__", CPP_LAMBDA(vm->PyStr("None")));
_vm->bind_method<0>("NoneType", "__json__", CPP_LAMBDA(vm->PyStr("null")));
_vm->_bind_methods<1>({"int", "float"}, "__truediv__", [](VM* vm, const pkpy::Args& args) {
f64 rhs = vm->num_to_float(args[1]);
if (rhs == 0) vm->zeroDivisionError();
return vm->PyFloat(vm->num_to_float(args[0]) / rhs);
});
_vm->_bind_methods<1>({"int", "float"}, "__pow__", [](VM* vm, const pkpy::Args& args) {
if(args[0]->is_type(vm->_tp_int) && args[1]->is_type(vm->_tp_int)){
return vm->PyInt((i64)round(pow(vm->PyInt_AS_C(args[0]), vm->PyInt_AS_C(args[1]))));
}else{
return vm->PyFloat((f64)pow(vm->num_to_float(args[0]), vm->num_to_float(args[1])));
}
});
/************ PyInt ************/
_vm->bind_static_method<1>("int", "__new__", [](VM* vm, const pkpy::Args& args) {
if (args[0]->is_type(vm->_tp_int)) return args[0];
if (args[0]->is_type(vm->_tp_float)) return vm->PyInt((i64)vm->PyFloat_AS_C(args[0]));
if (args[0]->is_type(vm->_tp_bool)) return vm->PyInt(vm->PyBool_AS_C(args[0]) ? 1 : 0);
if (args[0]->is_type(vm->_tp_str)) {
const _Str& s = vm->PyStr_AS_C(args[0]);
try{
size_t parsed = 0;
i64 val = std::stoll(s, &parsed, 10);
if(parsed != s.size()) throw std::invalid_argument("");
return vm->PyInt(val);
}catch(std::invalid_argument&){
vm->valueError("invalid literal for int(): '" + s + "'");
}
}
vm->typeError("int() argument must be a int, float, bool or str");
return vm->None;
});
_vm->bind_method<1>("int", "__floordiv__", [](VM* vm, const pkpy::Args& args) {
i64 rhs = vm->PyInt_AS_C(args[1]);
if(rhs == 0) vm->zeroDivisionError();
return vm->PyInt(vm->PyInt_AS_C(args[0]) / rhs);
});
_vm->bind_method<1>("int", "__mod__", [](VM* vm, const pkpy::Args& args) {
i64 rhs = vm->PyInt_AS_C(args[1]);
if(rhs == 0) vm->zeroDivisionError();
return vm->PyInt(vm->PyInt_AS_C(args[0]) % rhs);
});
_vm->bind_method<0>("int", "__repr__", [](VM* vm, const pkpy::Args& args) {
return vm->PyStr(std::to_string(vm->PyInt_AS_C(args[0])));
});
_vm->bind_method<0>("int", "__json__", [](VM* vm, const pkpy::Args& args) {
return vm->PyStr(std::to_string(vm->PyInt_AS_C(args[0])));
});
#define __INT_BITWISE_OP(name,op) \
_vm->bind_method<1>("int", #name, [](VM* vm, const pkpy::Args& args) { \
return vm->PyInt(vm->PyInt_AS_C(args[0]) op vm->PyInt_AS_C(args[1])); \
});
__INT_BITWISE_OP(__lshift__, <<)
__INT_BITWISE_OP(__rshift__, >>)
__INT_BITWISE_OP(__and__, &)
__INT_BITWISE_OP(__or__, |)
__INT_BITWISE_OP(__xor__, ^)
#undef __INT_BITWISE_OP
/************ PyFloat ************/
_vm->bind_static_method<1>("float", "__new__", [](VM* vm, const pkpy::Args& args) {
if (args[0]->is_type(vm->_tp_int)) return vm->PyFloat((f64)vm->PyInt_AS_C(args[0]));
if (args[0]->is_type(vm->_tp_float)) return args[0];
if (args[0]->is_type(vm->_tp_bool)) return vm->PyFloat(vm->PyBool_AS_C(args[0]) ? 1.0 : 0.0);
if (args[0]->is_type(vm->_tp_str)) {
const _Str& s = vm->PyStr_AS_C(args[0]);
if(s == "inf") return vm->PyFloat(INFINITY);
if(s == "-inf") return vm->PyFloat(-INFINITY);
try{
f64 val = std::stod(s);
return vm->PyFloat(val);
}catch(std::invalid_argument&){
vm->valueError("invalid literal for float(): '" + s + "'");
}
}
vm->typeError("float() argument must be a int, float, bool or str");
return vm->None;
});
_vm->bind_method<0>("float", "__repr__", [](VM* vm, const pkpy::Args& args) {
f64 val = vm->PyFloat_AS_C(args[0]);
if(std::isinf(val) || std::isnan(val)) return vm->PyStr(std::to_string(val));
_StrStream ss;
ss << std::setprecision(std::numeric_limits<f64>::max_digits10-1) << val;
std::string s = ss.str();
if(std::all_of(s.begin()+1, s.end(), isdigit)) s += ".0";
return vm->PyStr(s);
});
_vm->bind_method<0>("float", "__json__", [](VM* vm, const pkpy::Args& args) {
f64 val = vm->PyFloat_AS_C(args[0]);
if(std::isinf(val) || std::isnan(val)) vm->valueError("cannot jsonify 'nan' or 'inf'");
return vm->PyStr(std::to_string(val));
});
/************ PyString ************/
_vm->bind_static_method<1>("str", "__new__", CPP_LAMBDA(vm->asStr(args[0])));
_vm->bind_method<1>("str", "__add__", [](VM* vm, const pkpy::Args& args) {
const _Str& lhs = vm->PyStr_AS_C(args[0]);
const _Str& rhs = vm->PyStr_AS_C(args[1]);
return vm->PyStr(lhs + rhs);
});
_vm->bind_method<0>("str", "__len__", [](VM* vm, const pkpy::Args& args) {
const _Str& _self = vm->PyStr_AS_C(args[0]);
return vm->PyInt(_self.u8_length());
});
_vm->bind_method<1>("str", "__contains__", [](VM* vm, const pkpy::Args& args) {
const _Str& _self = vm->PyStr_AS_C(args[0]);
const _Str& _other = vm->PyStr_AS_C(args[1]);
return vm->PyBool(_self.find(_other) != _Str::npos);
});
_vm->bind_method<0>("str", "__str__", CPP_LAMBDA(args[0]));
_vm->bind_method<0>("str", "__iter__", CPP_LAMBDA(
vm->PyIter(pkpy::make_shared<BaseIterator, StringIterator>(vm, args[0]))
));
_vm->bind_method<0>("str", "__repr__", [](VM* vm, const pkpy::Args& args) {
const _Str& _self = vm->PyStr_AS_C(args[0]);
return vm->PyStr(_self.escape(true));
});
_vm->bind_method<0>("str", "__json__", [](VM* vm, const pkpy::Args& args) {
const _Str& _self = vm->PyStr_AS_C(args[0]);
return vm->PyStr(_self.escape(false));
});
_vm->bind_method<1>("str", "__eq__", [](VM* vm, const pkpy::Args& args) {
if(args[0]->is_type(vm->_tp_str) && args[1]->is_type(vm->_tp_str))
return vm->PyBool(vm->PyStr_AS_C(args[0]) == vm->PyStr_AS_C(args[1]));
return vm->PyBool(args[0] == args[1]);
});
_vm->bind_method<1>("str", "__ne__", [](VM* vm, const pkpy::Args& args) {
if(args[0]->is_type(vm->_tp_str) && args[1]->is_type(vm->_tp_str))
return vm->PyBool(vm->PyStr_AS_C(args[0]) != vm->PyStr_AS_C(args[1]));
return vm->PyBool(args[0] != args[1]);
});
_vm->bind_method<1>("str", "__getitem__", [](VM* vm, const pkpy::Args& args) {
const _Str& _self (vm->PyStr_AS_C(args[0]));
if(args[1]->is_type(vm->_tp_slice)){
_Slice s = vm->PySlice_AS_C(args[1]);
s.normalize(_self.u8_length());
return vm->PyStr(_self.u8_substr(s.start, s.stop));
}
int _index = (int)vm->PyInt_AS_C(args[1]);
_index = vm->normalized_index(_index, _self.u8_length());
return vm->PyStr(_self.u8_getitem(_index));
});
_vm->bind_method<1>("str", "__gt__", [](VM* vm, const pkpy::Args& args) {
const _Str& _self (vm->PyStr_AS_C(args[0]));
const _Str& _obj (vm->PyStr_AS_C(args[1]));
return vm->PyBool(_self > _obj);
});
_vm->bind_method<1>("str", "__lt__", [](VM* vm, const pkpy::Args& args) {
const _Str& _self (vm->PyStr_AS_C(args[0]));
const _Str& _obj (vm->PyStr_AS_C(args[1]));
return vm->PyBool(_self < _obj);
});
_vm->bind_method<2>("str", "replace", [](VM* vm, const pkpy::Args& args) {
const _Str& _self = vm->PyStr_AS_C(args[0]);
const _Str& _old = vm->PyStr_AS_C(args[1]);
const _Str& _new = vm->PyStr_AS_C(args[2]);
_Str _copy = _self;
// replace all occurences of _old with _new in _copy
size_t pos = 0;
while ((pos = _copy.find(_old, pos)) != std::string::npos) {
_copy.replace(pos, _old.length(), _new);
pos += _new.length();
}
return vm->PyStr(_copy);
});
_vm->bind_method<1>("str", "startswith", [](VM* vm, const pkpy::Args& args) {
const _Str& _self = vm->PyStr_AS_C(args[0]);
const _Str& _prefix = vm->PyStr_AS_C(args[1]);
return vm->PyBool(_self.find(_prefix) == 0);
});
_vm->bind_method<1>("str", "endswith", [](VM* vm, const pkpy::Args& args) {
const _Str& _self = vm->PyStr_AS_C(args[0]);
const _Str& _suffix = vm->PyStr_AS_C(args[1]);
return vm->PyBool(_self.rfind(_suffix) == _self.length() - _suffix.length());
});
_vm->bind_method<1>("str", "join", [](VM* vm, const pkpy::Args& args) {
const _Str& _self = vm->PyStr_AS_C(args[0]);
PyVarList* _list = nullptr;
if(args[1]->is_type(vm->_tp_list)){
_list = &vm->PyList_AS_C(args[1]);
}else if(args[1]->is_type(vm->_tp_tuple)){
_list = &vm->PyTuple_AS_C(args[1]);
}else{
vm->typeError("can only join a list or tuple");
}
_StrStream ss;
for(int i = 0; i < _list->size(); i++){
if(i > 0) ss << _self;
ss << vm->PyStr_AS_C(vm->asStr(_list->operator[](i)));
}
return vm->PyStr(ss.str());
});
/************ PyList ************/
_vm->bind_method<0>("list", "__iter__", [](VM* vm, const pkpy::Args& args) {
return vm->PyIter(
pkpy::make_shared<BaseIterator, VectorIterator>(vm, args[0])
);
});
_vm->bind_method<1>("list", "append", [](VM* vm, const pkpy::Args& args) {
PyVarList& _self = vm->PyList_AS_C(args[0]);
_self.push_back(args[1]);
return vm->None;
});
_vm->bind_method<2>("list", "insert", [](VM* vm, const pkpy::Args& args) {
PyVarList& _self = vm->PyList_AS_C(args[0]);
int _index = (int)vm->PyInt_AS_C(args[1]);
if(_index < 0) _index += _self.size();
if(_index < 0) _index = 0;
if(_index > _self.size()) _index = _self.size();
_self.insert(_self.begin() + _index, args[2]);
return vm->None;
});
_vm->bind_method<0>("list", "clear", [](VM* vm, const pkpy::Args& args) {
vm->PyList_AS_C(args[0]).clear();
return vm->None;
});
_vm->bind_method<0>("list", "copy", [](VM* vm, const pkpy::Args& args) {
return vm->PyList(vm->PyList_AS_C(args[0]));
});
_vm->bind_method<1>("list", "__add__", [](VM* vm, const pkpy::Args& args) {
const PyVarList& _self = vm->PyList_AS_C(args[0]);
const PyVarList& _obj = vm->PyList_AS_C(args[1]);
PyVarList _new_list = _self;
_new_list.insert(_new_list.end(), _obj.begin(), _obj.end());
return vm->PyList(_new_list);
});
_vm->bind_method<0>("list", "__len__", [](VM* vm, const pkpy::Args& args) {
const PyVarList& _self = vm->PyList_AS_C(args[0]);
return vm->PyInt(_self.size());
});
_vm->_bind_methods<1>({"list", "tuple"}, "__getitem__", [](VM* vm, const pkpy::Args& args) {
bool list = args[0]->is_type(vm->_tp_list);
const PyVarList& _self = list ? vm->PyList_AS_C(args[0]) : vm->PyTuple_AS_C(args[0]);
if(args[1]->is_type(vm->_tp_slice)){
_Slice s = vm->PySlice_AS_C(args[1]);
s.normalize(_self.size());
PyVarList _new_list;
for(size_t i = s.start; i < s.stop; i++) _new_list.push_back(_self[i]);
return list ? vm->PyList(_new_list) : vm->PyTuple(_new_list);
}
int _index = (int)vm->PyInt_AS_C(args[1]);
_index = vm->normalized_index(_index, _self.size());
return _self[_index];
});
_vm->bind_method<2>("list", "__setitem__", [](VM* vm, const pkpy::Args& args) {
PyVarList& _self = vm->PyList_AS_C(args[0]);
int _index = (int)vm->PyInt_AS_C(args[1]);
_index = vm->normalized_index(_index, _self.size());
_self[_index] = args[2];
return vm->None;
});
_vm->bind_method<1>("list", "__delitem__", [](VM* vm, const pkpy::Args& args) {
PyVarList& _self = vm->PyList_AS_C(args[0]);
int _index = (int)vm->PyInt_AS_C(args[1]);
_index = vm->normalized_index(_index, _self.size());
_self.erase(_self.begin() + _index);
return vm->None;
});
/************ PyTuple ************/
_vm->bind_static_method<1>("tuple", "__new__", [](VM* vm, const pkpy::Args& args) {
PyVarList _list = vm->PyList_AS_C(vm->call(vm->builtins->attribs["list"], args));
return vm->PyTuple(_list);
});
_vm->bind_method<0>("tuple", "__iter__", [](VM* vm, const pkpy::Args& args) {
return vm->PyIter(pkpy::make_shared<BaseIterator, VectorIterator>(vm, args[0]));
});
_vm->bind_method<0>("tuple", "__len__", [](VM* vm, const pkpy::Args& args) {
const PyVarList& _self = vm->PyTuple_AS_C(args[0]);
return vm->PyInt(_self.size());
});
/************ PyBool ************/
_vm->bind_static_method<1>("bool", "__new__", CPP_LAMBDA(vm->asBool(args[0])));
_vm->bind_method<0>("bool", "__repr__", [](VM* vm, const pkpy::Args& args) {
bool val = vm->PyBool_AS_C(args[0]);
return vm->PyStr(val ? "True" : "False");
});
_vm->bind_method<0>("bool", "__json__", [](VM* vm, const pkpy::Args& args) {
bool val = vm->PyBool_AS_C(args[0]);
return vm->PyStr(val ? "true" : "false");
});
_vm->bind_method<1>("bool", "__xor__", [](VM* vm, const pkpy::Args& args) {
bool _self = vm->PyBool_AS_C(args[0]);
bool _obj = vm->PyBool_AS_C(args[1]);
return vm->PyBool(_self ^ _obj);
});
_vm->bind_method<0>("ellipsis", "__repr__", CPP_LAMBDA(vm->PyStr("Ellipsis")));
}
#include "builtins.h"
#ifdef _WIN32
#define __EXPORT __declspec(dllexport)
#elif __APPLE__
#define __EXPORT __attribute__((visibility("default"))) __attribute__((used))
#elif __EMSCRIPTEN__
#define __EXPORT EMSCRIPTEN_KEEPALIVE
#define __NO_MAIN
#else
#define __EXPORT
#endif
void add_module_time(VM* vm){
PyVar mod = vm->new_module("time");
vm->bind_func<0>(mod, "time", [](VM* vm, const pkpy::Args& args) {
auto now = std::chrono::high_resolution_clock::now();
return vm->PyFloat(std::chrono::duration_cast<std::chrono::microseconds>(now.time_since_epoch()).count() / 1000000.0);
});
}
void add_module_sys(VM* vm){
PyVar mod = vm->new_module("sys");
vm->bind_func<1>(mod, "getrefcount", [](VM* vm, const pkpy::Args& args) {
return vm->PyInt(args[0].use_count());
});
vm->bind_func<0>(mod, "getrecursionlimit", [](VM* vm, const pkpy::Args& args) {
return vm->PyInt(vm->maxRecursionDepth);
});
vm->bind_func<1>(mod, "setrecursionlimit", [](VM* vm, const pkpy::Args& args) {
vm->maxRecursionDepth = (int)vm->PyInt_AS_C(args[0]);
return vm->None;
});
vm->setattr(mod, "version", vm->PyStr(PK_VERSION));
}
void add_module_json(VM* vm){
PyVar mod = vm->new_module("json");
vm->bind_func<1>(mod, "loads", [](VM* vm, const pkpy::Args& args) {
const _Str& expr = vm->PyStr_AS_C(args[0]);
_Code code = vm->compile(expr, "<json>", JSON_MODE);
return vm->_exec(code, vm->top_frame()->_module, vm->top_frame()->_locals);
});
vm->bind_func<1>(mod, "dumps", CPP_LAMBDA(vm->call(args[0], __json__)));
}
void add_module_math(VM* vm){
PyVar mod = vm->new_module("math");
vm->setattr(mod, "pi", vm->PyFloat(3.1415926535897932384));
vm->setattr(mod, "e" , vm->PyFloat(2.7182818284590452354));
vm->bind_func<1>(mod, "log", CPP_LAMBDA(vm->PyFloat(log(vm->num_to_float(args[0])))));
vm->bind_func<1>(mod, "log10", CPP_LAMBDA(vm->PyFloat(log10(vm->num_to_float(args[0])))));
vm->bind_func<1>(mod, "log2", CPP_LAMBDA(vm->PyFloat(log2(vm->num_to_float(args[0])))));
vm->bind_func<1>(mod, "sin", CPP_LAMBDA(vm->PyFloat(sin(vm->num_to_float(args[0])))));
vm->bind_func<1>(mod, "cos", CPP_LAMBDA(vm->PyFloat(cos(vm->num_to_float(args[0])))));
vm->bind_func<1>(mod, "tan", CPP_LAMBDA(vm->PyFloat(tan(vm->num_to_float(args[0])))));
vm->bind_func<1>(mod, "isnan", CPP_LAMBDA(vm->PyBool(std::isnan(vm->num_to_float(args[0])))));
vm->bind_func<1>(mod, "isinf", CPP_LAMBDA(vm->PyBool(std::isinf(vm->num_to_float(args[0])))));
}
void add_module_dis(VM* vm){
PyVar mod = vm->new_module("dis");
vm->bind_func<1>(mod, "dis", [](VM* vm, const pkpy::Args& args) {
_Code code = vm->PyFunction_AS_C(args[0])->code;
(*vm->_stdout) << vm->disassemble(code);
return vm->None;
});
}
struct ReMatch {
PY_CLASS(re, Match)
i64 start;
i64 end;
std::smatch m;
ReMatch(i64 start, i64 end, std::smatch m) : start(start), end(end), m(m) {}
static void _register(VM* vm, PyVar mod, PyVar type){
vm->bind_method<-1>(type, "__init__", CPP_NOT_IMPLEMENTED());
vm->bind_method<0>(type, "start", CPP_LAMBDA(vm->PyInt(vm->py_cast<ReMatch>(args[0]).start)));
vm->bind_method<0>(type, "end", CPP_LAMBDA(vm->PyInt(vm->py_cast<ReMatch>(args[0]).end)));
vm->bind_method<0>(type, "span", [](VM* vm, const pkpy::Args& args) {
auto& self = vm->py_cast<ReMatch>(args[0]);
return vm->PyTuple({ vm->PyInt(self.start), vm->PyInt(self.end) });
});
vm->bind_method<1>(type, "group", [](VM* vm, const pkpy::Args& args) {
auto& self = vm->py_cast<ReMatch>(args[0]);
int index = (int)vm->PyInt_AS_C(args[1]);
index = vm->normalized_index(index, self.m.size());
return vm->PyStr(self.m[index].str());
});
}
};
PyVar _regex_search(const _Str& pattern, const _Str& string, bool fromStart, VM* vm){
std::regex re(pattern);
std::smatch m;
if(std::regex_search(string, m, re)){
if(fromStart && m.position() != 0) return vm->None;
i64 start = string._to_u8_index(m.position());
i64 end = string._to_u8_index(m.position() + m.length());
return vm->new_object<ReMatch>(start, end, m);
}
return vm->None;
};
void add_module_re(VM* vm){
PyVar mod = vm->new_module("re");
vm->register_class<ReMatch>(mod);
vm->bind_func<2>(mod, "match", [](VM* vm, const pkpy::Args& args) {
const _Str& pattern = vm->PyStr_AS_C(args[0]);
const _Str& string = vm->PyStr_AS_C(args[1]);
return _regex_search(pattern, string, true, vm);
});
vm->bind_func<2>(mod, "search", [](VM* vm, const pkpy::Args& args) {
const _Str& pattern = vm->PyStr_AS_C(args[0]);
const _Str& string = vm->PyStr_AS_C(args[1]);
return _regex_search(pattern, string, false, vm);
});
vm->bind_func<3>(mod, "sub", [](VM* vm, const pkpy::Args& args) {
const _Str& pattern = vm->PyStr_AS_C(args[0]);
const _Str& repl = vm->PyStr_AS_C(args[1]);
const _Str& string = vm->PyStr_AS_C(args[2]);
std::regex re(pattern);
return vm->PyStr(std::regex_replace(string, re, repl));
});
vm->bind_func<2>(mod, "split", [](VM* vm, const pkpy::Args& args) {
const _Str& pattern = vm->PyStr_AS_C(args[0]);
const _Str& string = vm->PyStr_AS_C(args[1]);
std::regex re(pattern);
std::sregex_token_iterator it(string.begin(), string.end(), re, -1);
std::sregex_token_iterator end;
PyVarList vec;
for(; it != end; ++it){
vec.push_back(vm->PyStr(it->str()));
}
return vm->PyList(vec);
});
}
class _PkExported{
public:
virtual ~_PkExported() = default;
virtual void* get() = 0;
};
static std::vector<_PkExported*> _pkLookupTable;
template<typename T>
class PkExported : public _PkExported{
T* _ptr;
public:
template<typename... Args>
PkExported(Args&&... args) {
_ptr = new T(std::forward<Args>(args)...);
_pkLookupTable.push_back(this);
}
~PkExported() override { delete _ptr; }
void* get() override { return _ptr; }
operator T*() { return _ptr; }
};
#define pkpy_allocate(T, ...) *(new PkExported<T>(__VA_ARGS__))
extern "C" {
__EXPORT
/// Delete a pointer allocated by `pkpy_xxx_xxx`.
/// It can be `VM*`, `REPL*`, `char*`, etc.
///
/// !!!
/// If the pointer is not allocated by `pkpy_xxx_xxx`, the behavior is undefined.
/// !!!
void pkpy_delete(void* p){
for(int i = 0; i < _pkLookupTable.size(); i++){
if(_pkLookupTable[i]->get() == p){
delete _pkLookupTable[i];
_pkLookupTable.erase(_pkLookupTable.begin() + i);
return;
}
}
free(p);
}
__EXPORT
/// Run a given source on a virtual machine.
void pkpy_vm_exec(VM* vm, const char* source){
vm->exec(source, "main.py", EXEC_MODE);
}
__EXPORT
/// Get a global variable of a virtual machine.
///
/// Return `__repr__` of the result.
/// If the variable is not found, return `nullptr`.
char* pkpy_vm_get_global(VM* vm, const char* name){
auto it = vm->_main->attribs.find(name);
if(it == vm->_main->attribs.end()) return nullptr;
try{
_Str _repr = vm->PyStr_AS_C(vm->asRepr(it->second));
return strdup(_repr.c_str());
}catch(...){
return nullptr;
}
}
__EXPORT
/// Evaluate an expression.
///
/// Return `__repr__` of the result.
/// If there is any error, return `nullptr`.
char* pkpy_vm_eval(VM* vm, const char* source){
PyVarOrNull ret = vm->exec(source, "<eval>", EVAL_MODE);
if(ret == nullptr) return nullptr;
try{
_Str _repr = vm->PyStr_AS_C(vm->asRepr(ret));
return strdup(_repr.c_str());
}catch(...){
return nullptr;
}
}
__EXPORT
/// Create a REPL, using the given virtual machine as the backend.
REPL* pkpy_new_repl(VM* vm){
return pkpy_allocate(REPL, vm);
}
__EXPORT
/// Input a source line to an interactive console. Return true if need more lines.
bool pkpy_repl_input(REPL* r, const char* line){
return r->input(line);
}
__EXPORT
/// Add a source module into a virtual machine.
void pkpy_vm_add_module(VM* vm, const char* name, const char* source){
vm->_lazy_modules[name] = source;
}
__EXPORT
/// Create a virtual machine.
VM* pkpy_new_vm(bool use_stdio){
VM* vm = pkpy_allocate(VM, use_stdio);
init_builtins(vm);
add_module_sys(vm);
add_module_time(vm);
add_module_json(vm);
add_module_math(vm);
add_module_re(vm);
add_module_dis(vm);
// add builtins | no exception handler | must succeed
_Code code = vm->compile(__BUILTINS_CODE, "<builtins>", EXEC_MODE);
vm->_exec(code, vm->builtins, pkpy::make_shared<PyVarDict>());
pkpy_vm_add_module(vm, "random", __RANDOM_CODE);
return vm;
}
__EXPORT
/// Read the standard output and standard error as string of a virtual machine.
/// The `vm->use_stdio` should be `false`.
/// After this operation, both stream will be cleared.
///
/// Return a json representing the result.
char* pkpy_vm_read_output(VM* vm){
if(vm->use_stdio) return nullptr;
_StrStream* s_out = (_StrStream*)(vm->_stdout);
_StrStream* s_err = (_StrStream*)(vm->_stderr);
_Str _stdout = s_out->str();
_Str _stderr = s_err->str();
_StrStream ss;
ss << '{' << "\"stdout\": " << _stdout.escape(false);
ss << ", " << "\"stderr\": " << _stderr.escape(false) << '}';
s_out->str(""); s_err->str("");
return strdup(ss.str().c_str());
}
typedef i64 (*f_int_t)(char*);
typedef f64 (*f_float_t)(char*);
typedef bool (*f_bool_t)(char*);
typedef char* (*f_str_t)(char*);
typedef void (*f_None_t)(char*);
static f_int_t f_int = nullptr;
static f_float_t f_float = nullptr;
static f_bool_t f_bool = nullptr;
static f_str_t f_str = nullptr;
static f_None_t f_None = nullptr;
__EXPORT
/// Setup the callback functions.
void pkpy_setup_callbacks(f_int_t f_int, f_float_t f_float, f_bool_t f_bool, f_str_t f_str, f_None_t f_None){
::f_int = f_int;
::f_float = f_float;
::f_bool = f_bool;
::f_str = f_str;
::f_None = f_None;
}
__EXPORT
/// Bind a function to a virtual machine.
char* pkpy_vm_bind(VM* vm, const char* mod, const char* name, int ret_code){
if(!f_int || !f_float || !f_bool || !f_str || !f_None) return nullptr;
static int kGlobalBindId = 0;
for(int i=0; mod[i]; i++) if(mod[i] == ' ') return nullptr;
for(int i=0; name[i]; i++) if(name[i] == ' ') return nullptr;
std::string f_header = std::string(mod) + '.' + name + '#' + std::to_string(kGlobalBindId++);
PyVar obj = vm->_modules.contains(mod) ? vm->_modules[mod] : vm->new_module(mod);
vm->bind_func<-1>(obj, name, [ret_code, f_header](VM* vm, const pkpy::Args& args){
_StrStream ss;
ss << f_header;
for(int i=0; i<args.size(); i++){
ss << ' ';
PyVar x = vm->call(args[i], __json__);
ss << vm->PyStr_AS_C(x);
}
char* packet = strdup(ss.str().c_str());
switch(ret_code){
case 'i': return vm->PyInt(f_int(packet));
case 'f': return vm->PyFloat(f_float(packet));
case 'b': return vm->PyBool(f_bool(packet));
case 's': {
char* p = f_str(packet);
if(p == nullptr) return vm->None;
return vm->PyStr(p); // no need to free(p)
}
case 'N': f_None(packet); return vm->None;
}
free(packet);
UNREACHABLE();
return vm->None;
});
return strdup(f_header.c_str());
}
}
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