[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> |
---|
[92d684] | 17 | #include <misc/auxiliary.h> |
---|
[1cb879] | 18 | |
---|
| 19 | #include <omalloc/omalloc.h> |
---|
[92d684] | 20 | |
---|
[1cb879] | 21 | #include <kernel/febase.h> |
---|
| 22 | |
---|
[92d684] | 23 | #include "subexpr.h" |
---|
| 24 | #include "lists.h" |
---|
| 25 | #include "ipid.h" |
---|
| 26 | #include "blackbox.h" |
---|
[1cb879] | 27 | |
---|
| 28 | #include <Python.h> |
---|
[92d684] | 29 | // #include <iterator> // std::distance |
---|
| 30 | // #include <stdio.h> |
---|
[1cb879] | 31 | |
---|
| 32 | void sync_contexts(); |
---|
| 33 | |
---|
| 34 | /** @class PythonInterpreter |
---|
| 35 | * This class initializes and finalized the python interpreter. |
---|
| 36 | * |
---|
| 37 | * It also stores the Singular token number, which is assigned to this type on |
---|
| 38 | * runtime. |
---|
| 39 | **/ |
---|
| 40 | class PythonInterpreter { |
---|
| 41 | public: |
---|
| 42 | typedef int id_type; |
---|
| 43 | |
---|
| 44 | ~PythonInterpreter() { if(m_owns_python) Py_Finalize(); } |
---|
| 45 | |
---|
| 46 | /// Initialize unique (singleton) python interpreter instance, |
---|
| 47 | /// and set Singular type identifier |
---|
[011fb62] | 48 | static void init(id_type num ) { instance().m_id = num; } |
---|
[1cb879] | 49 | |
---|
| 50 | /// Get Singular type identitfier |
---|
| 51 | static id_type id() { return instance().m_id; } |
---|
| 52 | |
---|
| 53 | private: |
---|
| 54 | /// Singleton: Only init() is allowed to construct an instance |
---|
| 55 | PythonInterpreter(): |
---|
| 56 | m_id(0), m_owns_python(false) { start_python(); } |
---|
| 57 | |
---|
| 58 | /// Static initialization - |
---|
| 59 | /// safely takes care of destruction on program termination |
---|
| 60 | static PythonInterpreter& instance() |
---|
| 61 | { |
---|
| 62 | static PythonInterpreter init_interpreter; |
---|
| 63 | return init_interpreter; |
---|
| 64 | } |
---|
| 65 | |
---|
| 66 | void start_python() |
---|
| 67 | { |
---|
| 68 | if (!Py_IsInitialized()) init_python(); |
---|
| 69 | set_python_defaults(); |
---|
| 70 | } |
---|
| 71 | |
---|
| 72 | void init_python() |
---|
| 73 | { |
---|
| 74 | Py_Initialize(); |
---|
| 75 | m_owns_python = true; |
---|
| 76 | } |
---|
| 77 | |
---|
| 78 | void set_python_defaults() |
---|
| 79 | { |
---|
| 80 | // Sone python modules needs argc, argv set for some reason |
---|
| 81 | char* argv = ""; |
---|
| 82 | PySys_SetArgv(1, &argv); |
---|
| 83 | PyRun_SimpleString("from sys import path, modules"); |
---|
| 84 | PyRun_SimpleString("_SINGULAR_IMPORTED = dict()"); |
---|
| 85 | |
---|
| 86 | char cmd[MAXPATHLEN + 20]; |
---|
| 87 | sprintf(cmd, "path.insert(0, '%s')", feGetResource('b')); |
---|
| 88 | PyRun_SimpleString(cmd); |
---|
| 89 | PyRun_SimpleString("del path"); // cleanup |
---|
| 90 | } |
---|
| 91 | |
---|
| 92 | id_type m_id; |
---|
| 93 | bool m_owns_python; |
---|
| 94 | }; |
---|
| 95 | |
---|
| 96 | /** @class PythonObject |
---|
| 97 | * This class defines an interface for calling PyObject from Singular. |
---|
| 98 | * |
---|
| 99 | * @note This class does not take care of the memory mangement, this is done in |
---|
| 100 | * the blackbox routines. |
---|
| 101 | **/ |
---|
| 102 | class PythonObject |
---|
| 103 | { |
---|
| 104 | typedef PythonObject self; |
---|
| 105 | |
---|
| 106 | public: |
---|
| 107 | typedef PyObject* ptr_type; |
---|
| 108 | struct sequence_tag{}; |
---|
| 109 | |
---|
| 110 | PythonObject(): m_ptr(Py_None) { } |
---|
| 111 | PythonObject(ptr_type ptr): m_ptr(ptr) {if (!ptr) handle_exception();} |
---|
| 112 | |
---|
| 113 | ptr_type check_context(ptr_type ptr) const { |
---|
| 114 | if(ptr) sync_contexts(); |
---|
| 115 | return ptr; |
---|
| 116 | } |
---|
| 117 | /// Unary operations |
---|
| 118 | self operator()(int op) const |
---|
| 119 | { |
---|
| 120 | switch(op) |
---|
| 121 | { |
---|
| 122 | case '(': return check_context(PyObject_CallObject(*this, NULL)); |
---|
| 123 | case ATTRIB_CMD: return PyObject_Dir(*this); |
---|
| 124 | case PROC_CMD: return *this; |
---|
| 125 | } |
---|
| 126 | |
---|
| 127 | if (op == PythonInterpreter::id()) |
---|
| 128 | return *this; |
---|
| 129 | |
---|
[33337c] | 130 | Werror("unary operation '%s` not implemented for 'pyobject`", iiTwoOps(op)); |
---|
[1cb879] | 131 | return self(); |
---|
| 132 | } |
---|
| 133 | |
---|
| 134 | /// Binary and n-ary operations |
---|
| 135 | self operator()(int op, const self& arg) const { |
---|
| 136 | |
---|
| 137 | switch(op) |
---|
| 138 | { |
---|
| 139 | case '+': return PyNumber_Add(*this, arg); |
---|
| 140 | case '-': return PyNumber_Subtract(*this, arg); |
---|
| 141 | case '*': return PyNumber_Multiply(*this, arg); |
---|
| 142 | case '/': return PyNumber_Divide(*this, arg); |
---|
| 143 | case '^': return PyNumber_Power(*this, arg, Py_None); |
---|
| 144 | case '(': return check_context(PyObject_CallObject(*this, arg)); |
---|
| 145 | case '[': return operator[](arg); |
---|
| 146 | case KILLATTR_CMD: return del_attr(arg); |
---|
| 147 | case LIST_CMD: return args2list(arg); |
---|
| 148 | case '.': case COLONCOLON: case ATTRIB_CMD: return attr(arg); |
---|
| 149 | } |
---|
[33337c] | 150 | Werror("binary operation '%d` not implemented for 'pyobject`", iiTwoOps(op)); |
---|
[1cb879] | 151 | |
---|
| 152 | return self(); |
---|
| 153 | } |
---|
| 154 | |
---|
| 155 | /// Ternary operations |
---|
| 156 | self operator()(int op, const self& arg1, const self& arg2) const |
---|
| 157 | { |
---|
| 158 | switch(op) |
---|
| 159 | { |
---|
| 160 | case ATTRIB_CMD: PyObject_SetAttr(*this, arg1, arg2); return self(); |
---|
| 161 | } |
---|
| 162 | |
---|
[33337c] | 163 | Werror("ternary operation %s not implemented for 'pyobject`", iiTwoOps(op)); |
---|
[1cb879] | 164 | return self(); |
---|
| 165 | } |
---|
| 166 | |
---|
| 167 | /// Get item |
---|
| 168 | self operator[](const self& idx) const { return PyObject_GetItem(*this, idx); } |
---|
| 169 | self operator[](long idx) const { return operator[](PyInt_FromLong(idx)); } |
---|
| 170 | |
---|
| 171 | /// Get actual PyObject* |
---|
| 172 | operator const ptr_type() const { return m_ptr; } |
---|
| 173 | |
---|
| 174 | /// Get representative as C-style string |
---|
| 175 | char* repr() const |
---|
| 176 | { |
---|
| 177 | return omStrDup(PyString_AsString(PyObject_Repr(*this))); |
---|
| 178 | } |
---|
| 179 | |
---|
| 180 | /// Extract C-style string |
---|
| 181 | char* str() const { return omStrDup(PyString_AsString(*this)); } |
---|
| 182 | |
---|
| 183 | Py_ssize_t size() const { return PyObject_Size(m_ptr); } |
---|
| 184 | |
---|
| 185 | BOOLEAN assign_to(leftv result) |
---|
| 186 | { |
---|
| 187 | return (m_ptr == Py_None? none_to(result): python_to(result)); |
---|
| 188 | } |
---|
| 189 | |
---|
| 190 | void import_as(const char* name) const { |
---|
| 191 | idhdl handle = enterid(omStrDup(name), 0, DEF_CMD, |
---|
| 192 | &IDROOT, FALSE); |
---|
| 193 | |
---|
| 194 | if (handle) |
---|
| 195 | { |
---|
| 196 | IDDATA(handle) = (char*)m_ptr; |
---|
| 197 | Py_XINCREF(m_ptr); |
---|
| 198 | IDTYP(handle) = PythonInterpreter::id(); |
---|
| 199 | } |
---|
| 200 | else { Werror("Importing pyobject to Singular failed"); } |
---|
| 201 | } |
---|
| 202 | |
---|
| 203 | int compare(int op, const self& arg) const |
---|
| 204 | { return PyObject_RichCompareBool(*this, arg, py_opid(op)); } |
---|
| 205 | |
---|
| 206 | |
---|
| 207 | self attr(const self& arg) const { return PyObject_GetAttr(*this, arg); } |
---|
| 208 | |
---|
| 209 | self del_attr(const self& arg) const |
---|
| 210 | { |
---|
| 211 | if (!PyObject_HasAttr(*this, arg)) |
---|
| 212 | Werror("Cannot delete attribute %s.", arg.repr()); |
---|
| 213 | else |
---|
| 214 | PyObject_DelAttr(*this, arg); |
---|
| 215 | |
---|
| 216 | return self(); |
---|
| 217 | } |
---|
| 218 | |
---|
| 219 | protected: |
---|
| 220 | self args2list(const self& args) const |
---|
| 221 | { |
---|
| 222 | self pylist(PyList_New(0)); |
---|
| 223 | PyList_Append(pylist, *this); |
---|
| 224 | if(PyTuple_Check(args)) pylist.append_iter(PyObject_GetIter(args)); |
---|
| 225 | else PyList_Append(pylist, args); |
---|
| 226 | |
---|
| 227 | return pylist; |
---|
| 228 | } |
---|
| 229 | |
---|
| 230 | void handle_exception() { |
---|
| 231 | |
---|
| 232 | PyObject *pType, *pMessage, *pTraceback; |
---|
| 233 | PyErr_Fetch(&pType, &pMessage, &pTraceback); |
---|
| 234 | |
---|
| 235 | Werror("pyobject error occured"); |
---|
| 236 | Werror(PyString_AsString(pMessage)); |
---|
| 237 | |
---|
| 238 | Py_XDECREF(pType); |
---|
| 239 | Py_XDECREF(pMessage); |
---|
| 240 | Py_XDECREF(pTraceback); |
---|
| 241 | |
---|
| 242 | PyErr_Clear(); |
---|
| 243 | } |
---|
| 244 | |
---|
| 245 | void append_iter(self iterator) { |
---|
| 246 | ptr_type item; |
---|
| 247 | while (item = PyIter_Next(iterator)) { |
---|
| 248 | PyList_Append(*this, item); |
---|
| 249 | Py_DECREF(item); |
---|
| 250 | } |
---|
| 251 | } |
---|
| 252 | |
---|
| 253 | int py_opid(int op) const{ |
---|
| 254 | switch(op) |
---|
| 255 | { |
---|
| 256 | case '<': return Py_LT; |
---|
| 257 | case '>': return Py_GT; |
---|
| 258 | case EQUAL_EQUAL: return Py_EQ; |
---|
| 259 | case NOTEQUAL: return Py_NE; |
---|
| 260 | case GE: return Py_GE; |
---|
| 261 | case LE: return Py_LE; |
---|
| 262 | } |
---|
| 263 | return -1; |
---|
| 264 | } |
---|
| 265 | |
---|
| 266 | private: |
---|
| 267 | BOOLEAN none_to(leftv result) const |
---|
| 268 | { |
---|
| 269 | result->data = NULL; |
---|
| 270 | result->rtyp = NONE; |
---|
| 271 | return FALSE; |
---|
| 272 | } |
---|
| 273 | |
---|
| 274 | BOOLEAN python_to(leftv result) const |
---|
| 275 | { |
---|
| 276 | result->data = m_ptr; |
---|
[fcb5bf] | 277 | Py_XINCREF(m_ptr); |
---|
[1cb879] | 278 | result->rtyp = PythonInterpreter::id(); |
---|
| 279 | return !m_ptr; |
---|
| 280 | } |
---|
| 281 | |
---|
| 282 | /// The actual pointer |
---|
| 283 | ptr_type m_ptr; |
---|
| 284 | }; |
---|
| 285 | |
---|
| 286 | |
---|
| 287 | |
---|
| 288 | /** @class PythonCastStatic |
---|
| 289 | * This template class does conversion of Singular objects to python objects on |
---|
| 290 | * compile-time. |
---|
| 291 | * |
---|
| 292 | * @note The Singular objects are assumed to be equivalent to the template argument. |
---|
| 293 | **/ |
---|
| 294 | template <class CastType = PythonObject::ptr_type> |
---|
| 295 | class PythonCastStatic: |
---|
| 296 | public PythonObject { |
---|
| 297 | public: |
---|
| 298 | |
---|
| 299 | PythonCastStatic(void* value): |
---|
| 300 | PythonObject(get(reinterpret_cast<CastType>(value))) {} |
---|
| 301 | |
---|
| 302 | PythonCastStatic(leftv value): |
---|
| 303 | PythonObject(get(reinterpret_cast<CastType>(value->Data()))) {} |
---|
| 304 | |
---|
| 305 | private: |
---|
| 306 | ptr_type get(ptr_type value) { return value; } |
---|
| 307 | ptr_type get(long value) { return PyInt_FromLong(value); } |
---|
| 308 | ptr_type get(const char* value) { return PyString_FromString(value); } |
---|
| 309 | ptr_type get(char* value) { return get(const_cast<const char*>(value)); } |
---|
| 310 | ptr_type get(lists value); // inlined after PythonObjectDynamic |
---|
| 311 | }; |
---|
| 312 | |
---|
| 313 | |
---|
| 314 | |
---|
| 315 | /** @class PythonCastDynamic |
---|
| 316 | * This class does conversion of Singular objects to python objects on runtime. |
---|
| 317 | * |
---|
| 318 | **/ |
---|
| 319 | class PythonCastDynamic: |
---|
| 320 | public PythonObject { |
---|
| 321 | typedef PythonCastDynamic self; |
---|
| 322 | |
---|
| 323 | public: |
---|
| 324 | PythonCastDynamic(leftv value): PythonObject(get(value, value->Typ())) {} |
---|
| 325 | |
---|
| 326 | private: |
---|
| 327 | PythonObject get(leftv value, int typeId) |
---|
| 328 | { |
---|
| 329 | if (typeId == PythonInterpreter::id()) return PythonCastStatic<>(value); |
---|
| 330 | |
---|
| 331 | switch (typeId) |
---|
| 332 | { |
---|
| 333 | case INT_CMD: return PythonCastStatic<long>(value); |
---|
| 334 | case STRING_CMD: return PythonCastStatic<const char*>(value); |
---|
| 335 | case LIST_CMD: return PythonCastStatic<lists>(value); |
---|
| 336 | } |
---|
[33337c] | 337 | |
---|
| 338 | if (typeId > MAX_TOK) // custom types |
---|
| 339 | { |
---|
| 340 | blackbox *bbx = getBlackboxStuff(typeId); |
---|
| 341 | sleftv tmp; |
---|
| 342 | if (! bbx->blackbox_Op1(PythonInterpreter::id(), &tmp, value) ) |
---|
| 343 | return PythonCastStatic<>(&tmp); |
---|
| 344 | } |
---|
| 345 | else |
---|
| 346 | Werror("type '%s` incompatible with 'pyobject`", iiTwoOps(typeId)); |
---|
| 347 | |
---|
[1cb879] | 348 | return PythonObject(); |
---|
| 349 | } |
---|
| 350 | }; |
---|
| 351 | |
---|
| 352 | template <class CastType> |
---|
| 353 | inline PythonObject::ptr_type |
---|
| 354 | PythonCastStatic<CastType>::get(lists value) |
---|
| 355 | { |
---|
| 356 | ptr_type pylist(PyList_New(0)); |
---|
[92d684] | 357 | for (size_t i = 0; i <= value->nr; ++i) |
---|
[1cb879] | 358 | PyList_Append(pylist, PythonCastDynamic((value->m) + i)); |
---|
| 359 | |
---|
| 360 | return pylist; |
---|
| 361 | } |
---|
| 362 | |
---|
| 363 | /// Template specialization for getting handling sequence |
---|
| 364 | template <> |
---|
| 365 | class PythonCastStatic<PythonObject::sequence_tag>: |
---|
| 366 | public PythonObject |
---|
| 367 | { |
---|
| 368 | public: |
---|
| 369 | |
---|
| 370 | PythonCastStatic(leftv value): |
---|
| 371 | PythonObject(PyTuple_New(size(value))) { append_to(value); } |
---|
| 372 | |
---|
| 373 | |
---|
| 374 | private: |
---|
[92d684] | 375 | size_t size(leftv iter, size_t distance = 0) const |
---|
[1cb879] | 376 | { |
---|
| 377 | if (iter) { do { ++distance; } while(iter = iter->next); }; |
---|
| 378 | return distance; |
---|
| 379 | } |
---|
| 380 | |
---|
| 381 | void append_to(leftv iter) const |
---|
| 382 | { |
---|
[92d684] | 383 | for(size_t idx = 0; iter != NULL; iter = iter->next) |
---|
[1cb879] | 384 | PyTuple_SetItem(*this, idx++, PythonCastDynamic(iter)); |
---|
| 385 | } |
---|
| 386 | }; |
---|
| 387 | |
---|
| 388 | |
---|
| 389 | PythonObject get_attrib_name(leftv arg) |
---|
| 390 | { |
---|
| 391 | typedef PythonCastStatic<const char*> result_type; |
---|
| 392 | if (arg->Typ() == STRING_CMD) |
---|
| 393 | return result_type(arg); |
---|
| 394 | |
---|
| 395 | return result_type((void*)arg->Name()); |
---|
| 396 | } |
---|
| 397 | |
---|
| 398 | /// Evaluate string in python |
---|
| 399 | PythonObject python_eval(const char* arg) { |
---|
| 400 | |
---|
| 401 | PyObject* globals = PyModule_GetDict(PyImport_Import(PyString_FromString("__main__"))); |
---|
| 402 | return PyRun_String(arg, Py_eval_input, globals, globals); |
---|
| 403 | } |
---|
| 404 | |
---|
| 405 | /// Evaluate string in python from Singular |
---|
| 406 | BOOLEAN python_eval(leftv result, leftv arg) { |
---|
| 407 | if ( !arg || (arg->Typ() != STRING_CMD) ) { |
---|
| 408 | Werror("expected python_eval('string')"); |
---|
| 409 | return TRUE; |
---|
| 410 | } |
---|
| 411 | |
---|
| 412 | return python_eval(reinterpret_cast<const char*>(arg->Data())).assign_to(result); |
---|
| 413 | } |
---|
| 414 | |
---|
| 415 | |
---|
| 416 | /// Execute string in python from Singular |
---|
| 417 | BOOLEAN python_run(leftv result, leftv arg) |
---|
| 418 | { |
---|
| 419 | if ( !arg || (arg->Typ() != STRING_CMD) ) { |
---|
| 420 | Werror("expected python_run('string')"); |
---|
| 421 | return TRUE; |
---|
| 422 | } |
---|
| 423 | |
---|
| 424 | PyRun_SimpleString(reinterpret_cast<const char*>(arg->Data())); |
---|
| 425 | sync_contexts(); |
---|
| 426 | return PythonCastStatic<>(Py_None).assign_to(result); |
---|
| 427 | } |
---|
| 428 | |
---|
| 429 | PythonObject names_from_module(const char* module_name) |
---|
| 430 | { |
---|
| 431 | char buffer[strlen(module_name) + 30]; |
---|
| 432 | sprintf (buffer, "SINGULAR_MODULE_NAME = '%s'", module_name); |
---|
| 433 | PyRun_SimpleString(buffer); |
---|
| 434 | PyRun_SimpleString("from sys import modules"); |
---|
| 435 | PyRun_SimpleString("exec('from ' + SINGULAR_MODULE_NAME + ' import *')"); |
---|
| 436 | |
---|
| 437 | return python_eval("[str for str in dir(modules[SINGULAR_MODULE_NAME]) if str[0] != '_']"); |
---|
| 438 | } |
---|
| 439 | |
---|
| 440 | void from_module_import_all(const char* module_name) |
---|
| 441 | { |
---|
| 442 | char buffer[strlen(module_name) + 20]; |
---|
| 443 | sprintf (buffer, "from %s import *", module_name); |
---|
| 444 | PyRun_SimpleString(buffer); |
---|
| 445 | } |
---|
| 446 | |
---|
| 447 | /// import python module and export identifiers in Singular namespace |
---|
| 448 | BOOLEAN python_import(leftv result, leftv value) { |
---|
| 449 | |
---|
| 450 | if ((value == NULL) || (value->Typ()!= STRING_CMD)) { |
---|
| 451 | Werror("expected python_import('string')"); |
---|
| 452 | return TRUE; |
---|
| 453 | } |
---|
| 454 | |
---|
| 455 | from_module_import_all(reinterpret_cast<const char*>(value->Data())); |
---|
| 456 | sync_contexts(); |
---|
| 457 | |
---|
| 458 | return PythonCastStatic<>(Py_None).assign_to(result); |
---|
| 459 | } |
---|
| 460 | |
---|
| 461 | /// blackbox support - initialization |
---|
| 462 | void* pyobject_Init(blackbox*) |
---|
| 463 | { |
---|
| 464 | return Py_None; |
---|
| 465 | } |
---|
| 466 | |
---|
| 467 | /// blackbox support - convert to string representation |
---|
| 468 | char* pyobject_String(blackbox *b, void* ptr) |
---|
| 469 | { |
---|
| 470 | return PythonCastStatic<>(ptr).repr(); |
---|
| 471 | } |
---|
| 472 | |
---|
| 473 | /// blackbox support - copy element |
---|
| 474 | void* pyobject_Copy(blackbox*b, void* ptr) |
---|
| 475 | { |
---|
| 476 | Py_XINCREF(ptr); |
---|
| 477 | return ptr; |
---|
| 478 | } |
---|
| 479 | |
---|
| 480 | /// blackbox support - assign element |
---|
| 481 | BOOLEAN pyobject_Assign(leftv l, leftv r) |
---|
| 482 | { |
---|
| 483 | Py_XDECREF(l->Data()); |
---|
| 484 | PyObject* result = PythonCastDynamic(r); |
---|
| 485 | Py_XINCREF(result); |
---|
| 486 | |
---|
| 487 | if (l->rtyp == IDHDL) |
---|
| 488 | IDDATA((idhdl)l->data) = (char *)result; |
---|
| 489 | else |
---|
| 490 | l->data = (void *)result; |
---|
| 491 | |
---|
| 492 | return !result; |
---|
| 493 | } |
---|
| 494 | |
---|
| 495 | |
---|
| 496 | /// blackbox support - unary operations |
---|
| 497 | BOOLEAN pyobject_Op1(int op, leftv res, leftv head) |
---|
| 498 | { |
---|
| 499 | switch(op) |
---|
| 500 | { |
---|
| 501 | case INT_CMD: // built-in return types first |
---|
| 502 | { |
---|
| 503 | long value = PyInt_AsLong(PythonCastStatic<>(head)); |
---|
| 504 | if( (value == -1) && PyErr_Occurred() ) { |
---|
[33337c] | 505 | Werror("'pyobject` cannot be converted to integer"); |
---|
[1cb879] | 506 | PyErr_Clear(); |
---|
| 507 | return TRUE; |
---|
| 508 | } |
---|
| 509 | res->data = (void*) value; |
---|
| 510 | res->rtyp = INT_CMD; |
---|
| 511 | return FALSE; |
---|
| 512 | } |
---|
| 513 | case TYPEOF_CMD: |
---|
| 514 | res->data = (void*) omStrDup("pyobject"); |
---|
| 515 | res->rtyp = STRING_CMD; |
---|
| 516 | return FALSE; |
---|
| 517 | |
---|
| 518 | case LIST_CMD: |
---|
| 519 | return FALSE; |
---|
| 520 | |
---|
| 521 | } |
---|
[33337c] | 522 | |
---|
[1cb879] | 523 | return PythonCastStatic<>(head)(op).assign_to(res); |
---|
| 524 | } |
---|
| 525 | |
---|
| 526 | |
---|
| 527 | /// blackbox support - binary operations |
---|
| 528 | BOOLEAN pyobject_Op2(int op, leftv res, leftv arg1, leftv arg2) |
---|
| 529 | { |
---|
| 530 | PythonCastStatic<> lhs(arg1); |
---|
| 531 | |
---|
| 532 | switch(op) // built-in return types and special cases first |
---|
| 533 | { |
---|
| 534 | case '<': case '>': case EQUAL_EQUAL: case NOTEQUAL: case GE: case LE: |
---|
| 535 | { |
---|
| 536 | res->data = (void *)lhs.compare(op, PythonCastDynamic(arg2)); |
---|
| 537 | res->rtyp = INT_CMD; |
---|
| 538 | return FALSE; |
---|
| 539 | } |
---|
| 540 | case '.': case COLONCOLON: case ATTRIB_CMD: |
---|
| 541 | return lhs.attr(get_attrib_name(arg2)).assign_to(res); |
---|
| 542 | } |
---|
| 543 | PythonCastDynamic rhs(arg2); |
---|
| 544 | return lhs(op, rhs).assign_to(res); |
---|
| 545 | } |
---|
| 546 | |
---|
| 547 | /// blackbox support - ternary operations |
---|
| 548 | BOOLEAN pyobject_Op3(int op, leftv res, leftv arg1, leftv arg2, leftv arg3) |
---|
| 549 | { |
---|
| 550 | PythonCastStatic<> lhs(arg1); |
---|
| 551 | PythonCastDynamic rhs1(arg2); |
---|
| 552 | PythonCastDynamic rhs2(arg3); |
---|
| 553 | |
---|
| 554 | return lhs(op, rhs1, rhs2).assign_to(res); |
---|
| 555 | } |
---|
| 556 | |
---|
| 557 | |
---|
| 558 | /// blackbox support - n-ary operations |
---|
| 559 | BOOLEAN pyobject_OpM(int op, leftv res, leftv args) |
---|
| 560 | { |
---|
| 561 | typedef PythonCastStatic<PythonObject::sequence_tag> seq_type; |
---|
| 562 | |
---|
| 563 | switch(op) // built-in return types first |
---|
| 564 | { |
---|
| 565 | case STRING_CMD: |
---|
| 566 | { |
---|
| 567 | blackbox* a = getBlackboxStuff(args->Typ()); |
---|
| 568 | res->data = (void *)a->blackbox_String(a, args->Data()); |
---|
| 569 | res->rtyp = STRING_CMD; |
---|
| 570 | return FALSE; |
---|
| 571 | } |
---|
| 572 | } |
---|
| 573 | |
---|
| 574 | typedef PythonCastStatic<PythonObject::sequence_tag> seq_type; |
---|
| 575 | return PythonCastStatic<>(args)(op, seq_type(args->next)).assign_to(res); |
---|
| 576 | } |
---|
| 577 | |
---|
| 578 | /// blackbox support - destruction |
---|
| 579 | void pyobject_destroy(blackbox *b, void* ptr) |
---|
| 580 | { |
---|
| 581 | Py_XDECREF(ptr); |
---|
| 582 | } |
---|
| 583 | |
---|
| 584 | PyObject* get_current_definition(const char* name) { |
---|
| 585 | idhdl handle = ggetid(name); |
---|
| 586 | if (!handle || (IDTYP(handle) != PythonInterpreter::id())) return NULL; |
---|
| 587 | PythonCastStatic<PyObject*> value(IDDATA(handle)); |
---|
| 588 | return value; |
---|
| 589 | } |
---|
| 590 | |
---|
| 591 | /// getting stuff from python to Singular namespace |
---|
| 592 | void sync_contexts() |
---|
| 593 | { |
---|
| 594 | PyRun_SimpleString("_SINGULAR_NEW = modules['__main__'].__dict__.copy()"); |
---|
| 595 | |
---|
| 596 | PythonObject newElts = python_eval("[(_k, _e) \ |
---|
| 597 | for (_k, _e) in _SINGULAR_NEW.iteritems() \ |
---|
| 598 | if _k not in _SINGULAR_IMPORTED or not _SINGULAR_IMPORTED[_k] is _e]"); |
---|
| 599 | |
---|
| 600 | long len = newElts.size(); |
---|
| 601 | for (long idx = 0; idx < len; ++idx) |
---|
| 602 | { |
---|
| 603 | char* name = newElts[idx][0].str(); |
---|
| 604 | if (name && (*name != '\0') && (*name != '_')) |
---|
| 605 | { |
---|
| 606 | Py_XDECREF(get_current_definition(name)); |
---|
| 607 | newElts[idx][1].import_as(name); |
---|
| 608 | } |
---|
| 609 | |
---|
| 610 | } |
---|
| 611 | |
---|
| 612 | PythonObject deletedElts = |
---|
| 613 | python_eval("list(set(_SINGULAR_IMPORTED.iterkeys()) - \ |
---|
| 614 | set(_SINGULAR_NEW.iterkeys()))"); |
---|
| 615 | len = deletedElts.size(); |
---|
| 616 | |
---|
| 617 | for (long idx = 0; idx < len; ++idx) |
---|
| 618 | { |
---|
| 619 | char* name = deletedElts[idx].str(); |
---|
| 620 | if (name && (*name != '\0') && (*name != '_')) |
---|
| 621 | killid(name, &IDROOT); |
---|
| 622 | } |
---|
| 623 | |
---|
| 624 | PyRun_SimpleString("_SINGULAR_IMPORTED =_SINGULAR_NEW"); |
---|
| 625 | PyRun_SimpleString("del _SINGULAR_NEW"); |
---|
| 626 | } |
---|
| 627 | |
---|
| 628 | |
---|
| 629 | // forward declaration |
---|
| 630 | int iiAddCproc(char *libname, char *procname, BOOLEAN pstatic, |
---|
| 631 | BOOLEAN(*func)(leftv res, leftv v)); |
---|
| 632 | |
---|
| 633 | #define ADD_C_PROC(name) iiAddCproc("", (char*)#name, FALSE, name); |
---|
| 634 | |
---|
| 635 | |
---|
| 636 | void pyobject_init() |
---|
| 637 | { |
---|
| 638 | blackbox *b = (blackbox*)omAlloc0(sizeof(blackbox)); |
---|
| 639 | b->blackbox_destroy = pyobject_destroy; |
---|
| 640 | b->blackbox_String = pyobject_String; |
---|
| 641 | b->blackbox_Init = pyobject_Init; |
---|
| 642 | b->blackbox_Copy = pyobject_Copy; |
---|
| 643 | b->blackbox_Assign = pyobject_Assign; |
---|
| 644 | b->blackbox_Op1 = pyobject_Op1; |
---|
| 645 | b->blackbox_Op2 = pyobject_Op2; |
---|
| 646 | b->blackbox_Op3 = pyobject_Op3; |
---|
| 647 | b->blackbox_OpM = pyobject_OpM; |
---|
| 648 | |
---|
| 649 | PythonInterpreter::init(setBlackboxStuff(b,"pyobject")); |
---|
| 650 | |
---|
| 651 | ADD_C_PROC(python_import); |
---|
| 652 | ADD_C_PROC(python_eval); |
---|
| 653 | ADD_C_PROC(python_run); |
---|
| 654 | } |
---|
| 655 | |
---|
| 656 | extern "C" { void mod_init() { pyobject_init(); } } |
---|
| 657 | |
---|