[1cb879] | 1 | // -*- c++ -*- |
---|
| 2 | //***************************************************************************** |
---|
| 3 | /** @file pyobject.cc |
---|
| 4 | * |
---|
| 5 | * @author Alexander Dreyer |
---|
| 6 | * @date 2010-12-15 |
---|
| 7 | * |
---|
| 8 | * This file defines the @c blackbox operations for the pyobject type. |
---|
| 9 | * |
---|
| 10 | * @par Copyright: |
---|
| 11 | * (c) 2010 by The Singular Team, see LICENSE file |
---|
| 12 | **/ |
---|
| 13 | //***************************************************************************** |
---|
| 14 | |
---|
[762407] | 15 | #include "config.h" |
---|
[f5b40a] | 16 | #include <kernel/mod2.h> |
---|
[b3cd39] | 17 | //#include <misc/auxiliary.h> |
---|
| 18 | //#include "newstruct.h" |
---|
| 19 | |
---|
| 20 | |
---|
| 21 | #include <Singular/ipid.h> |
---|
| 22 | #include <Singular/blackbox.h> |
---|
| 23 | #include <Singular/lists.h> |
---|
| 24 | #include <Singular/ipid.h> |
---|
| 25 | #include <Singular/ipshell.h> |
---|
| 26 | #include <Singular/newstruct.h> |
---|
| 27 | |
---|
| 28 | |
---|
[92d684] | 29 | #include <misc/auxiliary.h> |
---|
[1cb879] | 30 | |
---|
| 31 | #include <omalloc/omalloc.h> |
---|
[92d684] | 32 | |
---|
[1cb879] | 33 | #include <kernel/febase.h> |
---|
[b3cd39] | 34 | #include <misc/intvec.h> |
---|
[1cb879] | 35 | |
---|
[92d684] | 36 | #include "subexpr.h" |
---|
| 37 | #include "lists.h" |
---|
| 38 | #include "ipid.h" |
---|
| 39 | #include "blackbox.h" |
---|
[b3cd39] | 40 | #include "ipshell.h" |
---|
[c2ff413] | 41 | #include "newstruct.h" |
---|
[1cb879] | 42 | |
---|
[c2ff413] | 43 | #include <Python.h> |
---|
[b3cd39] | 44 | |
---|
[92d684] | 45 | // #include <iterator> // std::distance |
---|
| 46 | // #include <stdio.h> |
---|
[1cb879] | 47 | |
---|
| 48 | void sync_contexts(); |
---|
| 49 | |
---|
| 50 | /** @class PythonInterpreter |
---|
| 51 | * This class initializes and finalized the python interpreter. |
---|
| 52 | * |
---|
| 53 | * It also stores the Singular token number, which is assigned to this type on |
---|
| 54 | * runtime. |
---|
| 55 | **/ |
---|
| 56 | class PythonInterpreter { |
---|
| 57 | public: |
---|
| 58 | typedef int id_type; |
---|
| 59 | |
---|
| 60 | ~PythonInterpreter() { if(m_owns_python) Py_Finalize(); } |
---|
| 61 | |
---|
| 62 | /// Initialize unique (singleton) python interpreter instance, |
---|
| 63 | /// and set Singular type identifier |
---|
[35a0c12] | 64 | static void init(id_type num) { instance().m_id = num; } |
---|
[1cb879] | 65 | |
---|
| 66 | /// Get Singular type identitfier |
---|
| 67 | static id_type id() { return instance().m_id; } |
---|
| 68 | |
---|
| 69 | private: |
---|
| 70 | /// Singleton: Only init() is allowed to construct an instance |
---|
| 71 | PythonInterpreter(): |
---|
| 72 | m_id(0), m_owns_python(false) { start_python(); } |
---|
| 73 | |
---|
| 74 | /// Static initialization - |
---|
| 75 | /// safely takes care of destruction on program termination |
---|
| 76 | static PythonInterpreter& instance() |
---|
| 77 | { |
---|
| 78 | static PythonInterpreter init_interpreter; |
---|
| 79 | return init_interpreter; |
---|
| 80 | } |
---|
| 81 | |
---|
| 82 | void start_python() |
---|
| 83 | { |
---|
| 84 | if (!Py_IsInitialized()) init_python(); |
---|
| 85 | set_python_defaults(); |
---|
| 86 | } |
---|
| 87 | |
---|
| 88 | void init_python() |
---|
| 89 | { |
---|
| 90 | Py_Initialize(); |
---|
| 91 | m_owns_python = true; |
---|
| 92 | } |
---|
| 93 | |
---|
| 94 | void set_python_defaults() |
---|
| 95 | { |
---|
| 96 | // Sone python modules needs argc, argv set for some reason |
---|
| 97 | char* argv = ""; |
---|
| 98 | PySys_SetArgv(1, &argv); |
---|
| 99 | PyRun_SimpleString("from sys import path, modules"); |
---|
| 100 | PyRun_SimpleString("_SINGULAR_IMPORTED = dict()"); |
---|
| 101 | |
---|
| 102 | char cmd[MAXPATHLEN + 20]; |
---|
| 103 | sprintf(cmd, "path.insert(0, '%s')", feGetResource('b')); |
---|
| 104 | PyRun_SimpleString(cmd); |
---|
| 105 | PyRun_SimpleString("del path"); // cleanup |
---|
| 106 | } |
---|
| 107 | |
---|
| 108 | id_type m_id; |
---|
| 109 | bool m_owns_python; |
---|
| 110 | }; |
---|
| 111 | |
---|
| 112 | /** @class PythonObject |
---|
| 113 | * This class defines an interface for calling PyObject from Singular. |
---|
| 114 | * |
---|
| 115 | * @note This class does not take care of the memory mangement, this is done in |
---|
| 116 | * the blackbox routines. |
---|
| 117 | **/ |
---|
| 118 | class PythonObject |
---|
| 119 | { |
---|
| 120 | typedef PythonObject self; |
---|
| 121 | |
---|
| 122 | public: |
---|
| 123 | typedef PyObject* ptr_type; |
---|
| 124 | struct sequence_tag{}; |
---|
| 125 | |
---|
| 126 | PythonObject(): m_ptr(Py_None) { } |
---|
[0227d1] | 127 | PythonObject(ptr_type ptr): m_ptr(ptr) { |
---|
| 128 | if (!ptr && handle_exception()) m_ptr = Py_None; |
---|
| 129 | } |
---|
[1cb879] | 130 | |
---|
| 131 | ptr_type check_context(ptr_type ptr) const { |
---|
| 132 | if(ptr) sync_contexts(); |
---|
| 133 | return ptr; |
---|
| 134 | } |
---|
| 135 | /// Unary operations |
---|
| 136 | self operator()(int op) const |
---|
| 137 | { |
---|
| 138 | switch(op) |
---|
| 139 | { |
---|
| 140 | case '(': return check_context(PyObject_CallObject(*this, NULL)); |
---|
| 141 | case ATTRIB_CMD: return PyObject_Dir(*this); |
---|
| 142 | case PROC_CMD: return *this; |
---|
| 143 | } |
---|
| 144 | |
---|
| 145 | if (op == PythonInterpreter::id()) |
---|
| 146 | return *this; |
---|
| 147 | |
---|
[0227d1] | 148 | return self(NULL); |
---|
[1cb879] | 149 | } |
---|
| 150 | |
---|
| 151 | /// Binary and n-ary operations |
---|
| 152 | self operator()(int op, const self& arg) const { |
---|
| 153 | |
---|
| 154 | switch(op) |
---|
| 155 | { |
---|
| 156 | case '+': return PyNumber_Add(*this, arg); |
---|
| 157 | case '-': return PyNumber_Subtract(*this, arg); |
---|
| 158 | case '*': return PyNumber_Multiply(*this, arg); |
---|
| 159 | case '/': return PyNumber_Divide(*this, arg); |
---|
| 160 | case '^': return PyNumber_Power(*this, arg, Py_None); |
---|
| 161 | case '(': return check_context(PyObject_CallObject(*this, arg)); |
---|
| 162 | case '[': return operator[](arg); |
---|
| 163 | case KILLATTR_CMD: return del_attr(arg); |
---|
| 164 | case LIST_CMD: return args2list(arg); |
---|
| 165 | case '.': case COLONCOLON: case ATTRIB_CMD: return attr(arg); |
---|
| 166 | } |
---|
[0227d1] | 167 | return self(NULL); |
---|
[1cb879] | 168 | } |
---|
| 169 | |
---|
| 170 | /// Ternary operations |
---|
| 171 | self operator()(int op, const self& arg1, const self& arg2) const |
---|
| 172 | { |
---|
| 173 | switch(op) |
---|
| 174 | { |
---|
[1161a61] | 175 | case ATTRIB_CMD: |
---|
| 176 | if(PyObject_SetAttr(*this, arg1, arg2) == -1) handle_exception(); |
---|
| 177 | return self(); |
---|
[1cb879] | 178 | } |
---|
[0227d1] | 179 | return self(NULL); |
---|
[1cb879] | 180 | } |
---|
| 181 | |
---|
| 182 | /// Get item |
---|
| 183 | self operator[](const self& idx) const { return PyObject_GetItem(*this, idx); } |
---|
| 184 | self operator[](long idx) const { return operator[](PyInt_FromLong(idx)); } |
---|
| 185 | |
---|
| 186 | /// Get actual PyObject* |
---|
| 187 | operator const ptr_type() const { return m_ptr; } |
---|
| 188 | |
---|
| 189 | /// Get representative as C-style string |
---|
| 190 | char* repr() const |
---|
| 191 | { |
---|
| 192 | return omStrDup(PyString_AsString(PyObject_Repr(*this))); |
---|
| 193 | } |
---|
| 194 | |
---|
| 195 | /// Extract C-style string |
---|
| 196 | char* str() const { return omStrDup(PyString_AsString(*this)); } |
---|
| 197 | |
---|
| 198 | Py_ssize_t size() const { return PyObject_Size(m_ptr); } |
---|
| 199 | |
---|
| 200 | BOOLEAN assign_to(leftv result) |
---|
| 201 | { |
---|
[b2aa08] | 202 | return (m_ptr? (m_ptr == Py_None? none_to(result): python_to(result)): TRUE); |
---|
[1cb879] | 203 | } |
---|
| 204 | |
---|
| 205 | void import_as(const char* name) const { |
---|
| 206 | idhdl handle = enterid(omStrDup(name), 0, DEF_CMD, |
---|
| 207 | &IDROOT, FALSE); |
---|
| 208 | |
---|
| 209 | if (handle) |
---|
| 210 | { |
---|
| 211 | IDDATA(handle) = (char*)m_ptr; |
---|
| 212 | Py_XINCREF(m_ptr); |
---|
| 213 | IDTYP(handle) = PythonInterpreter::id(); |
---|
| 214 | } |
---|
| 215 | else { Werror("Importing pyobject to Singular failed"); } |
---|
| 216 | } |
---|
| 217 | |
---|
| 218 | int compare(int op, const self& arg) const |
---|
| 219 | { return PyObject_RichCompareBool(*this, arg, py_opid(op)); } |
---|
| 220 | |
---|
| 221 | |
---|
| 222 | self attr(const self& arg) const { return PyObject_GetAttr(*this, arg); } |
---|
| 223 | |
---|
| 224 | self del_attr(const self& arg) const |
---|
| 225 | { |
---|
| 226 | if (!PyObject_HasAttr(*this, arg)) |
---|
| 227 | Werror("Cannot delete attribute %s.", arg.repr()); |
---|
| 228 | else |
---|
| 229 | PyObject_DelAttr(*this, arg); |
---|
| 230 | |
---|
| 231 | return self(); |
---|
| 232 | } |
---|
| 233 | |
---|
| 234 | protected: |
---|
| 235 | self args2list(const self& args) const |
---|
| 236 | { |
---|
| 237 | self pylist(PyList_New(0)); |
---|
| 238 | PyList_Append(pylist, *this); |
---|
| 239 | if(PyTuple_Check(args)) pylist.append_iter(PyObject_GetIter(args)); |
---|
| 240 | else PyList_Append(pylist, args); |
---|
| 241 | |
---|
| 242 | return pylist; |
---|
| 243 | } |
---|
| 244 | |
---|
[0227d1] | 245 | BOOLEAN handle_exception() const { |
---|
| 246 | |
---|
| 247 | if(!PyErr_Occurred()) return FALSE; |
---|
[1cb879] | 248 | |
---|
| 249 | PyObject *pType, *pMessage, *pTraceback; |
---|
| 250 | PyErr_Fetch(&pType, &pMessage, &pTraceback); |
---|
| 251 | |
---|
| 252 | Werror("pyobject error occured"); |
---|
| 253 | Werror(PyString_AsString(pMessage)); |
---|
| 254 | |
---|
| 255 | Py_XDECREF(pType); |
---|
| 256 | Py_XDECREF(pMessage); |
---|
| 257 | Py_XDECREF(pTraceback); |
---|
| 258 | |
---|
| 259 | PyErr_Clear(); |
---|
[0227d1] | 260 | return TRUE; |
---|
[1cb879] | 261 | } |
---|
| 262 | |
---|
| 263 | void append_iter(self iterator) { |
---|
| 264 | ptr_type item; |
---|
| 265 | while (item = PyIter_Next(iterator)) { |
---|
| 266 | PyList_Append(*this, item); |
---|
| 267 | Py_DECREF(item); |
---|
| 268 | } |
---|
| 269 | } |
---|
| 270 | |
---|
| 271 | int py_opid(int op) const{ |
---|
| 272 | switch(op) |
---|
| 273 | { |
---|
| 274 | case '<': return Py_LT; |
---|
| 275 | case '>': return Py_GT; |
---|
| 276 | case EQUAL_EQUAL: return Py_EQ; |
---|
| 277 | case NOTEQUAL: return Py_NE; |
---|
| 278 | case GE: return Py_GE; |
---|
| 279 | case LE: return Py_LE; |
---|
| 280 | } |
---|
| 281 | return -1; |
---|
| 282 | } |
---|
| 283 | |
---|
| 284 | private: |
---|
| 285 | BOOLEAN none_to(leftv result) const |
---|
| 286 | { |
---|
[ee7fda] | 287 | Py_XDECREF(m_ptr); |
---|
[1cb879] | 288 | result->data = NULL; |
---|
| 289 | result->rtyp = NONE; |
---|
| 290 | return FALSE; |
---|
| 291 | } |
---|
| 292 | |
---|
| 293 | BOOLEAN python_to(leftv result) const |
---|
| 294 | { |
---|
| 295 | result->data = m_ptr; |
---|
[fcb5bf] | 296 | Py_XINCREF(m_ptr); |
---|
[1cb879] | 297 | result->rtyp = PythonInterpreter::id(); |
---|
| 298 | return !m_ptr; |
---|
| 299 | } |
---|
| 300 | |
---|
| 301 | /// The actual pointer |
---|
| 302 | ptr_type m_ptr; |
---|
| 303 | }; |
---|
| 304 | |
---|
| 305 | |
---|
| 306 | |
---|
| 307 | /** @class PythonCastStatic |
---|
| 308 | * This template class does conversion of Singular objects to python objects on |
---|
| 309 | * compile-time. |
---|
| 310 | * |
---|
| 311 | * @note The Singular objects are assumed to be equivalent to the template argument. |
---|
| 312 | **/ |
---|
| 313 | template <class CastType = PythonObject::ptr_type> |
---|
| 314 | class PythonCastStatic: |
---|
| 315 | public PythonObject { |
---|
[29fc843] | 316 | typedef PythonCastStatic self; |
---|
[1cb879] | 317 | public: |
---|
| 318 | |
---|
| 319 | PythonCastStatic(void* value): |
---|
| 320 | PythonObject(get(reinterpret_cast<CastType>(value))) {} |
---|
| 321 | |
---|
| 322 | PythonCastStatic(leftv value): |
---|
| 323 | PythonObject(get(reinterpret_cast<CastType>(value->Data()))) {} |
---|
| 324 | |
---|
| 325 | private: |
---|
| 326 | ptr_type get(ptr_type value) { return value; } |
---|
| 327 | ptr_type get(long value) { return PyInt_FromLong(value); } |
---|
[29fc843] | 328 | ptr_type get(int value) { return PyInt_FromLong((long)value); } |
---|
[1cb879] | 329 | ptr_type get(const char* value) { return PyString_FromString(value); } |
---|
| 330 | ptr_type get(char* value) { return get(const_cast<const char*>(value)); } |
---|
[29fc843] | 331 | ptr_type get(intvec* value); // inlined below |
---|
[1cb879] | 332 | ptr_type get(lists value); // inlined after PythonObjectDynamic |
---|
| 333 | }; |
---|
| 334 | |
---|
[29fc843] | 335 | template <class CastType> |
---|
| 336 | inline PythonObject::ptr_type |
---|
| 337 | PythonCastStatic<CastType>::get(intvec* value) |
---|
| 338 | { |
---|
| 339 | ptr_type pylist(PyList_New(0)); |
---|
| 340 | for (int idx = 0; idx < value->length(); ++idx) |
---|
| 341 | PyList_Append(pylist, self::get((*value)[idx])); |
---|
[1cb879] | 342 | |
---|
[29fc843] | 343 | return pylist; |
---|
| 344 | } |
---|
[1cb879] | 345 | |
---|
| 346 | /** @class PythonCastDynamic |
---|
| 347 | * This class does conversion of Singular objects to python objects on runtime. |
---|
| 348 | * |
---|
| 349 | **/ |
---|
| 350 | class PythonCastDynamic: |
---|
| 351 | public PythonObject { |
---|
| 352 | typedef PythonCastDynamic self; |
---|
| 353 | |
---|
| 354 | public: |
---|
| 355 | PythonCastDynamic(leftv value): PythonObject(get(value, value->Typ())) {} |
---|
| 356 | |
---|
| 357 | private: |
---|
| 358 | PythonObject get(leftv value, int typeId) |
---|
| 359 | { |
---|
| 360 | if (typeId == PythonInterpreter::id()) return PythonCastStatic<>(value); |
---|
| 361 | |
---|
| 362 | switch (typeId) |
---|
| 363 | { |
---|
| 364 | case INT_CMD: return PythonCastStatic<long>(value); |
---|
| 365 | case STRING_CMD: return PythonCastStatic<const char*>(value); |
---|
| 366 | case LIST_CMD: return PythonCastStatic<lists>(value); |
---|
[29fc843] | 367 | case INTVEC_CMD: return PythonCastStatic<intvec*>(value); |
---|
[1cb879] | 368 | } |
---|
[33337c] | 369 | |
---|
[a04a05] | 370 | sleftv tmp; |
---|
| 371 | BOOLEAN newstruct_equal(int, leftv, leftv); // declaring overloaded '=' |
---|
| 372 | if (!newstruct_equal(PythonInterpreter::id(), &tmp, value)) |
---|
| 373 | return PythonCastStatic<>(&tmp); |
---|
| 374 | |
---|
[33337c] | 375 | if (typeId > MAX_TOK) // custom types |
---|
| 376 | { |
---|
| 377 | blackbox *bbx = getBlackboxStuff(typeId); |
---|
[a04a05] | 378 | assume(bbx != NULL); |
---|
| 379 | if (! bbx->blackbox_Op1(PythonInterpreter::id(), &tmp, value)) |
---|
| 380 | return PythonCastStatic<>(&tmp); |
---|
[33337c] | 381 | } |
---|
| 382 | |
---|
[a04a05] | 383 | Werror("type '%s` incompatible with 'pyobject`", iiTwoOps(typeId)); |
---|
[1cb879] | 384 | return PythonObject(); |
---|
| 385 | } |
---|
| 386 | }; |
---|
| 387 | |
---|
| 388 | template <class CastType> |
---|
| 389 | inline PythonObject::ptr_type |
---|
| 390 | PythonCastStatic<CastType>::get(lists value) |
---|
| 391 | { |
---|
| 392 | ptr_type pylist(PyList_New(0)); |
---|
[107b5b2] | 393 | for (int i = 0; i <= value->nr; ++i) |
---|
[1cb879] | 394 | PyList_Append(pylist, PythonCastDynamic((value->m) + i)); |
---|
| 395 | |
---|
| 396 | return pylist; |
---|
| 397 | } |
---|
| 398 | |
---|
| 399 | /// Template specialization for getting handling sequence |
---|
| 400 | template <> |
---|
| 401 | class PythonCastStatic<PythonObject::sequence_tag>: |
---|
| 402 | public PythonObject |
---|
| 403 | { |
---|
| 404 | public: |
---|
| 405 | |
---|
| 406 | PythonCastStatic(leftv value): |
---|
| 407 | PythonObject(PyTuple_New(size(value))) { append_to(value); } |
---|
| 408 | |
---|
| 409 | |
---|
| 410 | private: |
---|
[92d684] | 411 | size_t size(leftv iter, size_t distance = 0) const |
---|
[1cb879] | 412 | { |
---|
[57dcd6] | 413 | if (iter) { do { ++distance; } while((iter = iter->next)); }; |
---|
[1cb879] | 414 | return distance; |
---|
| 415 | } |
---|
| 416 | |
---|
| 417 | void append_to(leftv iter) const |
---|
| 418 | { |
---|
[92d684] | 419 | for(size_t idx = 0; iter != NULL; iter = iter->next) |
---|
[1cb879] | 420 | PyTuple_SetItem(*this, idx++, PythonCastDynamic(iter)); |
---|
| 421 | } |
---|
| 422 | }; |
---|
| 423 | |
---|
| 424 | |
---|
| 425 | PythonObject get_attrib_name(leftv arg) |
---|
| 426 | { |
---|
| 427 | typedef PythonCastStatic<const char*> result_type; |
---|
| 428 | if (arg->Typ() == STRING_CMD) |
---|
| 429 | return result_type(arg); |
---|
| 430 | |
---|
| 431 | return result_type((void*)arg->Name()); |
---|
| 432 | } |
---|
| 433 | |
---|
| 434 | /// Evaluate string in python |
---|
| 435 | PythonObject python_eval(const char* arg) { |
---|
| 436 | |
---|
| 437 | PyObject* globals = PyModule_GetDict(PyImport_Import(PyString_FromString("__main__"))); |
---|
| 438 | return PyRun_String(arg, Py_eval_input, globals, globals); |
---|
| 439 | } |
---|
| 440 | |
---|
| 441 | /// Evaluate string in python from Singular |
---|
| 442 | BOOLEAN python_eval(leftv result, leftv arg) { |
---|
| 443 | if ( !arg || (arg->Typ() != STRING_CMD) ) { |
---|
| 444 | Werror("expected python_eval('string')"); |
---|
| 445 | return TRUE; |
---|
| 446 | } |
---|
| 447 | |
---|
| 448 | return python_eval(reinterpret_cast<const char*>(arg->Data())).assign_to(result); |
---|
| 449 | } |
---|
| 450 | |
---|
| 451 | |
---|
| 452 | /// Execute string in python from Singular |
---|
| 453 | BOOLEAN python_run(leftv result, leftv arg) |
---|
| 454 | { |
---|
| 455 | if ( !arg || (arg->Typ() != STRING_CMD) ) { |
---|
| 456 | Werror("expected python_run('string')"); |
---|
| 457 | return TRUE; |
---|
| 458 | } |
---|
| 459 | |
---|
| 460 | PyRun_SimpleString(reinterpret_cast<const char*>(arg->Data())); |
---|
| 461 | sync_contexts(); |
---|
[c6909f] | 462 | |
---|
[57dcd6] | 463 | Py_INCREF(Py_None); |
---|
[1cb879] | 464 | return PythonCastStatic<>(Py_None).assign_to(result); |
---|
| 465 | } |
---|
| 466 | |
---|
| 467 | PythonObject names_from_module(const char* module_name) |
---|
| 468 | { |
---|
| 469 | char buffer[strlen(module_name) + 30]; |
---|
| 470 | sprintf (buffer, "SINGULAR_MODULE_NAME = '%s'", module_name); |
---|
| 471 | PyRun_SimpleString(buffer); |
---|
| 472 | PyRun_SimpleString("from sys import modules"); |
---|
| 473 | PyRun_SimpleString("exec('from ' + SINGULAR_MODULE_NAME + ' import *')"); |
---|
| 474 | |
---|
| 475 | return python_eval("[str for str in dir(modules[SINGULAR_MODULE_NAME]) if str[0] != '_']"); |
---|
| 476 | } |
---|
| 477 | |
---|
| 478 | void from_module_import_all(const char* module_name) |
---|
| 479 | { |
---|
| 480 | char buffer[strlen(module_name) + 20]; |
---|
| 481 | sprintf (buffer, "from %s import *", module_name); |
---|
| 482 | PyRun_SimpleString(buffer); |
---|
| 483 | } |
---|
| 484 | |
---|
| 485 | /// import python module and export identifiers in Singular namespace |
---|
| 486 | BOOLEAN python_import(leftv result, leftv value) { |
---|
| 487 | |
---|
| 488 | if ((value == NULL) || (value->Typ()!= STRING_CMD)) { |
---|
| 489 | Werror("expected python_import('string')"); |
---|
| 490 | return TRUE; |
---|
| 491 | } |
---|
| 492 | |
---|
| 493 | from_module_import_all(reinterpret_cast<const char*>(value->Data())); |
---|
| 494 | sync_contexts(); |
---|
| 495 | |
---|
[57dcd6] | 496 | Py_INCREF(Py_None); |
---|
[1cb879] | 497 | return PythonCastStatic<>(Py_None).assign_to(result); |
---|
| 498 | } |
---|
| 499 | |
---|
| 500 | /// blackbox support - initialization |
---|
| 501 | void* pyobject_Init(blackbox*) |
---|
| 502 | { |
---|
[57dcd6] | 503 | Py_INCREF(Py_None); |
---|
[1cb879] | 504 | return Py_None; |
---|
| 505 | } |
---|
| 506 | |
---|
| 507 | /// blackbox support - convert to string representation |
---|
| 508 | char* pyobject_String(blackbox *b, void* ptr) |
---|
| 509 | { |
---|
| 510 | return PythonCastStatic<>(ptr).repr(); |
---|
| 511 | } |
---|
| 512 | |
---|
| 513 | /// blackbox support - copy element |
---|
| 514 | void* pyobject_Copy(blackbox*b, void* ptr) |
---|
| 515 | { |
---|
| 516 | Py_XINCREF(ptr); |
---|
| 517 | return ptr; |
---|
| 518 | } |
---|
| 519 | |
---|
| 520 | /// blackbox support - assign element |
---|
| 521 | BOOLEAN pyobject_Assign(leftv l, leftv r) |
---|
| 522 | { |
---|
| 523 | Py_XDECREF(l->Data()); |
---|
| 524 | PyObject* result = PythonCastDynamic(r); |
---|
| 525 | Py_XINCREF(result); |
---|
| 526 | |
---|
| 527 | if (l->rtyp == IDHDL) |
---|
| 528 | IDDATA((idhdl)l->data) = (char *)result; |
---|
| 529 | else |
---|
| 530 | l->data = (void *)result; |
---|
| 531 | |
---|
| 532 | return !result; |
---|
| 533 | } |
---|
| 534 | |
---|
| 535 | |
---|
| 536 | /// blackbox support - unary operations |
---|
| 537 | BOOLEAN pyobject_Op1(int op, leftv res, leftv head) |
---|
| 538 | { |
---|
| 539 | switch(op) |
---|
| 540 | { |
---|
| 541 | case INT_CMD: // built-in return types first |
---|
| 542 | { |
---|
| 543 | long value = PyInt_AsLong(PythonCastStatic<>(head)); |
---|
| 544 | if( (value == -1) && PyErr_Occurred() ) { |
---|
[33337c] | 545 | Werror("'pyobject` cannot be converted to integer"); |
---|
[1cb879] | 546 | PyErr_Clear(); |
---|
| 547 | return TRUE; |
---|
| 548 | } |
---|
| 549 | res->data = (void*) value; |
---|
| 550 | res->rtyp = INT_CMD; |
---|
| 551 | return FALSE; |
---|
| 552 | } |
---|
| 553 | case TYPEOF_CMD: |
---|
| 554 | res->data = (void*) omStrDup("pyobject"); |
---|
| 555 | res->rtyp = STRING_CMD; |
---|
[29fc843] | 556 | return FALSE; |
---|
[1cb879] | 557 | } |
---|
[33337c] | 558 | |
---|
[b2aa08] | 559 | if (!PythonCastStatic<>(head)(op).assign_to(res)) |
---|
| 560 | return FALSE; |
---|
[ed47aab] | 561 | |
---|
[b2aa08] | 562 | BOOLEAN newstruct_Op1(int, leftv, leftv); // forward declaration |
---|
| 563 | return newstruct_Op1(op, res, head); |
---|
[1cb879] | 564 | } |
---|
| 565 | |
---|
| 566 | |
---|
| 567 | /// blackbox support - binary operations |
---|
| 568 | BOOLEAN pyobject_Op2(int op, leftv res, leftv arg1, leftv arg2) |
---|
| 569 | { |
---|
| 570 | PythonCastStatic<> lhs(arg1); |
---|
| 571 | |
---|
| 572 | switch(op) // built-in return types and special cases first |
---|
| 573 | { |
---|
| 574 | case '<': case '>': case EQUAL_EQUAL: case NOTEQUAL: case GE: case LE: |
---|
| 575 | { |
---|
| 576 | res->data = (void *)lhs.compare(op, PythonCastDynamic(arg2)); |
---|
| 577 | res->rtyp = INT_CMD; |
---|
| 578 | return FALSE; |
---|
| 579 | } |
---|
| 580 | case '.': case COLONCOLON: case ATTRIB_CMD: |
---|
| 581 | return lhs.attr(get_attrib_name(arg2)).assign_to(res); |
---|
| 582 | } |
---|
[b2aa08] | 583 | |
---|
[1cb879] | 584 | PythonCastDynamic rhs(arg2); |
---|
[b2aa08] | 585 | if (!lhs(op, rhs).assign_to(res)) |
---|
| 586 | return FALSE; |
---|
| 587 | |
---|
| 588 | BOOLEAN newstruct_Op2(int, leftv, leftv, leftv); // forward declaration |
---|
| 589 | return newstruct_Op2(op, res, arg1, arg2); |
---|
| 590 | |
---|
[1cb879] | 591 | } |
---|
| 592 | |
---|
| 593 | /// blackbox support - ternary operations |
---|
| 594 | BOOLEAN pyobject_Op3(int op, leftv res, leftv arg1, leftv arg2, leftv arg3) |
---|
| 595 | { |
---|
| 596 | PythonCastStatic<> lhs(arg1); |
---|
| 597 | PythonCastDynamic rhs1(arg2); |
---|
| 598 | PythonCastDynamic rhs2(arg3); |
---|
| 599 | |
---|
[1161a61] | 600 | if (!lhs(op, rhs1, rhs2).assign_to(res)) |
---|
[0227d1] | 601 | return FALSE; |
---|
| 602 | |
---|
[b3cd39] | 603 | return blackbox_default_Op3(op, res, arg1, arg2, arg3); |
---|
[1cb879] | 604 | } |
---|
| 605 | |
---|
| 606 | |
---|
| 607 | /// blackbox support - n-ary operations |
---|
| 608 | BOOLEAN pyobject_OpM(int op, leftv res, leftv args) |
---|
| 609 | { |
---|
| 610 | switch(op) // built-in return types first |
---|
| 611 | { |
---|
| 612 | case STRING_CMD: |
---|
| 613 | { |
---|
| 614 | blackbox* a = getBlackboxStuff(args->Typ()); |
---|
| 615 | res->data = (void *)a->blackbox_String(a, args->Data()); |
---|
| 616 | res->rtyp = STRING_CMD; |
---|
| 617 | return FALSE; |
---|
| 618 | } |
---|
| 619 | |
---|
[29fc843] | 620 | case INTVEC_CMD: |
---|
| 621 | PythonObject obj = PythonCastStatic<>(args->Data()); |
---|
| 622 | unsigned long len = obj.size(); |
---|
| 623 | |
---|
| 624 | intvec* vec = new intvec(len); |
---|
| 625 | for(unsigned long idx = 0; idx != len; ++idx) { |
---|
| 626 | long value = PyInt_AsLong(obj[idx]); |
---|
| 627 | (*vec)[idx] = static_cast<int>(value); |
---|
| 628 | |
---|
| 629 | if ((value == -1) && PyErr_Occurred()) { |
---|
| 630 | value = 0; |
---|
| 631 | PyErr_Clear(); |
---|
| 632 | } |
---|
| 633 | if (value != long((*vec)[idx])) { |
---|
| 634 | delete vec; |
---|
| 635 | Werror("'pyobject` cannot be converted to intvec"); |
---|
| 636 | return TRUE; |
---|
| 637 | } |
---|
| 638 | } |
---|
| 639 | res->data = (void *)vec; |
---|
| 640 | res->rtyp = op; |
---|
| 641 | return FALSE; |
---|
| 642 | } |
---|
[1cb879] | 643 | typedef PythonCastStatic<PythonObject::sequence_tag> seq_type; |
---|
[b2aa08] | 644 | if (! PythonCastStatic<>(args)(op, seq_type(args->next)).assign_to(res)) |
---|
| 645 | return FALSE; |
---|
| 646 | |
---|
| 647 | BOOLEAN newstruct_OpM(int, leftv, leftv); // forward declaration |
---|
| 648 | return newstruct_OpM(op, res, args); |
---|
[1cb879] | 649 | } |
---|
| 650 | |
---|
| 651 | /// blackbox support - destruction |
---|
| 652 | void pyobject_destroy(blackbox *b, void* ptr) |
---|
| 653 | { |
---|
| 654 | Py_XDECREF(ptr); |
---|
| 655 | } |
---|
| 656 | |
---|
| 657 | PyObject* get_current_definition(const char* name) { |
---|
| 658 | idhdl handle = ggetid(name); |
---|
| 659 | if (!handle || (IDTYP(handle) != PythonInterpreter::id())) return NULL; |
---|
| 660 | PythonCastStatic<PyObject*> value(IDDATA(handle)); |
---|
| 661 | return value; |
---|
| 662 | } |
---|
| 663 | |
---|
| 664 | /// getting stuff from python to Singular namespace |
---|
| 665 | void sync_contexts() |
---|
| 666 | { |
---|
| 667 | PyRun_SimpleString("_SINGULAR_NEW = modules['__main__'].__dict__.copy()"); |
---|
| 668 | |
---|
| 669 | PythonObject newElts = python_eval("[(_k, _e) \ |
---|
| 670 | for (_k, _e) in _SINGULAR_NEW.iteritems() \ |
---|
| 671 | if _k not in _SINGULAR_IMPORTED or not _SINGULAR_IMPORTED[_k] is _e]"); |
---|
| 672 | |
---|
| 673 | long len = newElts.size(); |
---|
| 674 | for (long idx = 0; idx < len; ++idx) |
---|
| 675 | { |
---|
| 676 | char* name = newElts[idx][0].str(); |
---|
| 677 | if (name && (*name != '\0') && (*name != '_')) |
---|
| 678 | { |
---|
| 679 | Py_XDECREF(get_current_definition(name)); |
---|
| 680 | newElts[idx][1].import_as(name); |
---|
| 681 | } |
---|
| 682 | |
---|
| 683 | } |
---|
| 684 | |
---|
| 685 | PythonObject deletedElts = |
---|
| 686 | python_eval("list(set(_SINGULAR_IMPORTED.iterkeys()) - \ |
---|
| 687 | set(_SINGULAR_NEW.iterkeys()))"); |
---|
| 688 | len = deletedElts.size(); |
---|
| 689 | |
---|
| 690 | for (long idx = 0; idx < len; ++idx) |
---|
| 691 | { |
---|
| 692 | char* name = deletedElts[idx].str(); |
---|
| 693 | if (name && (*name != '\0') && (*name != '_')) |
---|
| 694 | killid(name, &IDROOT); |
---|
| 695 | } |
---|
| 696 | |
---|
| 697 | PyRun_SimpleString("_SINGULAR_IMPORTED =_SINGULAR_NEW"); |
---|
| 698 | PyRun_SimpleString("del _SINGULAR_NEW"); |
---|
| 699 | } |
---|
| 700 | |
---|
| 701 | |
---|
| 702 | |
---|
[35a0c12] | 703 | blackbox* pyobject_blackbox(int& tok) { |
---|
| 704 | if(blackboxIsCmd("pyobject", tok) != ROOT_DECL) |
---|
| 705 | { |
---|
| 706 | tok = setBlackboxStuff((blackbox*)omAlloc0(sizeof(blackbox)), |
---|
| 707 | "pyobject"); |
---|
| 708 | } |
---|
| 709 | return getBlackboxStuff(tok); |
---|
| 710 | } |
---|
| 711 | |
---|
[1cb879] | 712 | |
---|
| 713 | |
---|
[51f563] | 714 | #define PYOBJECT_ADD_C_PROC(name) \ |
---|
[57dcd6] | 715 | psModulFunctions->iiAddCproc((currPack->libname? currPack->libname: ""),\ |
---|
| 716 | (char*)#name, FALSE, name); |
---|
[51f563] | 717 | |
---|
[57dcd6] | 718 | int pyobject_mod_init(SModulFunctions* psModulFunctions) |
---|
[1cb879] | 719 | { |
---|
[35a0c12] | 720 | int tok = -1; |
---|
| 721 | blackbox* bbx = pyobject_blackbox(tok); |
---|
| 722 | if (bbx->blackbox_Init != pyobject_Init) |
---|
| 723 | { |
---|
| 724 | bbx->blackbox_destroy = pyobject_destroy; |
---|
| 725 | bbx->blackbox_String = pyobject_String; |
---|
| 726 | bbx->blackbox_Init = pyobject_Init; |
---|
| 727 | bbx->blackbox_Copy = pyobject_Copy; |
---|
| 728 | bbx->blackbox_Assign = pyobject_Assign; |
---|
| 729 | bbx->blackbox_Op1 = pyobject_Op1; |
---|
| 730 | bbx->blackbox_Op2 = pyobject_Op2; |
---|
| 731 | bbx->blackbox_Op3 = pyobject_Op3; |
---|
| 732 | bbx->blackbox_OpM = pyobject_OpM; |
---|
[57dcd6] | 733 | bbx->data = (void*)omAlloc0(newstruct_desc_size()); |
---|
[35a0c12] | 734 | |
---|
| 735 | PythonInterpreter::init(tok); |
---|
[51f563] | 736 | |
---|
| 737 | PYOBJECT_ADD_C_PROC(python_import); |
---|
| 738 | PYOBJECT_ADD_C_PROC(python_eval); |
---|
| 739 | PYOBJECT_ADD_C_PROC(python_run); |
---|
[35a0c12] | 740 | } |
---|
[57dcd6] | 741 | return 0; |
---|
[1cb879] | 742 | } |
---|
[51f563] | 743 | #undef PYOBJECT_ADD_C_PROC |
---|
[1cb879] | 744 | |
---|
[51f563] | 745 | #ifndef EMBED_PYTHON |
---|
[35a0c12] | 746 | extern "C" { |
---|
[57dcd6] | 747 | int mod_init(SModulFunctions* psModulFunctions) |
---|
[35a0c12] | 748 | { |
---|
[57dcd6] | 749 | return pyobject_mod_init(psModulFunctions); |
---|
[35a0c12] | 750 | } |
---|
| 751 | } |
---|
[51f563] | 752 | #endif |
---|