/* * nextpnr -- Next Generation Place and Route * * Copyright (C) 2018 Claire Xenia Wolf * Copyright (C) 2018 gatecat * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * */ #ifndef PYWRAPPERS_H #define PYWRAPPERS_H #include #include #include "nextpnr.h" NEXTPNR_NAMESPACE_BEGIN namespace py = pybind11; namespace PythonConversion { template struct ContextualWrapper { Context *ctx; T base; inline ContextualWrapper(Context *c, T x) : ctx(c), base(x){}; inline operator T() { return base; }; typedef T base_type; }; template struct WrapIfNotContext { typedef ContextualWrapper maybe_wrapped_t; }; template <> struct WrapIfNotContext { typedef Context maybe_wrapped_t; }; template inline Context *get_ctx(typename WrapIfNotContext::maybe_wrapped_t &wrp_ctx) { return wrp_ctx.ctx; } template <> inline Context *get_ctx(WrapIfNotContext::maybe_wrapped_t &unwrp_ctx) { return &unwrp_ctx; } template inline T &get_base(typename WrapIfNotContext::maybe_wrapped_t &wrp_ctx) { return wrp_ctx.base; } template <> inline Context &get_base(WrapIfNotContext::maybe_wrapped_t &unwrp_ctx) { return unwrp_ctx; } template ContextualWrapper wrap_ctx(Context *ctx, T x) { return ContextualWrapper(ctx, x); } // Dummy class, to be implemented by users template struct string_converter; class bad_wrap { }; // Action options template struct pass_through { inline T operator()(Context *ctx, T x) { return x; } using ret_type = T; using arg_type = T; }; template struct wrap_context { inline ContextualWrapper operator()(Context *ctx, T x) { return ContextualWrapper(ctx, x); } using arg_type = T; using ret_type = ContextualWrapper; }; template struct unwrap_context { inline T operator()(Context *ctx, ContextualWrapper x) { return x.base; } using ret_type = T; using arg_type = ContextualWrapper; }; template struct conv_from_str { inline T operator()(Context *ctx, std::string x) { return string_converter().from_str(ctx, x); } using ret_type = T; using arg_type = std::string; }; template struct conv_to_str { inline std::string operator()(Context *ctx, T x) { return string_converter().to_str(ctx, x); } using ret_type = std::string; using arg_type = T; }; template struct deref_and_wrap { inline ContextualWrapper operator()(Context *ctx, T *x) { if (x == nullptr) throw bad_wrap(); return ContextualWrapper(ctx, *x); } using arg_type = T *; using ret_type = ContextualWrapper; }; template struct addr_and_unwrap { inline T *operator()(Context *ctx, ContextualWrapper x) { return &(x.base); } using arg_type = ContextualWrapper; using ret_type = T *; }; // Function wrapper // Zero parameters, one return template struct fn_wrapper_0a { using class_type = typename WrapIfNotContext::maybe_wrapped_t; using conv_result_type = typename rv_conv::ret_type; static py::object wrapped_fn(class_type &cls) { Context *ctx = get_ctx(cls); Class &base = get_base(cls); try { return py::cast(rv_conv()(ctx, (base.*fn)())); } catch (bad_wrap &) { return py::none(); } } template static void def_wrap(WrapCls cls_, const char *name) { cls_.def(name, wrapped_fn); } }; // One parameter, one return template struct fn_wrapper_1a { using class_type = typename WrapIfNotContext::maybe_wrapped_t; using conv_result_type = typename rv_conv::ret_type; using conv_arg1_type = typename arg1_conv::arg_type; static py::object wrapped_fn(class_type &cls, conv_arg1_type arg1) { Context *ctx = get_ctx(cls); Class &base = get_base(cls); try { return py::cast(rv_conv()(ctx, (base.*fn)(arg1_conv()(ctx, arg1)))); } catch (bad_wrap &) { return py::none(); } } template static void def_wrap(WrapCls cls_, const char *name) { cls_.def(name, wrapped_fn); } }; // Two parameters, one return template struct fn_wrapper_2a { using class_type = typename WrapIfNotContext::maybe_wrapped_t; using conv_result_type = typename rv_conv::ret_type; using conv_arg1_type = typename arg1_conv::arg_type; using conv_arg2_type = typename arg2_conv::arg_type; static py::object wrapped_fn(class_type &cls, conv_arg1_type arg1, conv_arg2_type arg2) { Context *ctx = get_ctx(cls); Class &base = get_base(cls); try { return py::cast(rv_conv()(ctx, (base.*fn)(arg1_conv()(ctx, arg1), arg2_conv()(ctx, arg2)))); } catch (bad_wrap &) { return py::none(); } } template static void def_wrap(WrapCls cls_, const char *name) { cls_.def(name, wrapped_fn); } }; // Three parameters, one return template struct fn_wrapper_3a { using class_type = typename WrapIfNotContext::maybe_wrapped_t; using conv_result_type = typename rv_conv::ret_type; using conv_arg1_type = typename arg1_conv::arg_type; using conv_arg2_type = typename arg2_conv::arg_type; using conv_arg3_type = typename arg3_conv::arg_type; static py::object wrapped_fn(class_type &cls, conv_arg1_type arg1, conv_arg2_type arg2, conv_arg3_type arg3) { Context *ctx = get_ctx(cls); Class &base = get_base(cls); try { return py::cast( rv_conv()(ctx, (base.*fn)(arg1_conv()(ctx, arg1), arg2_conv()(ctx, arg2), arg3_conv()(ctx, arg3)))); } catch (bad_wrap &) { return py::none(); } } template static void def_wrap(WrapCls cls_, const char *name) { cls_.def(name, wrapped_fn); } }; // Zero parameters void template struct fn_wrapper_0a_v { using class_type = typename WrapIfNotContext::maybe_wrapped_t; static void wrapped_fn(class_type &cls) { Class &base = get_base(cls); return (base.*fn)(); } template static void def_wrap(WrapCls cls_, const char *name) { cls_.def(name, wrapped_fn); } }; // One parameter, void template struct fn_wrapper_1a_v { using class_type = typename WrapIfNotContext::maybe_wrapped_t; using conv_arg1_type = typename arg1_conv::arg_type; static void wrapped_fn(class_type &cls, conv_arg1_type arg1) { Context *ctx = get_ctx(cls); Class &base = get_base(cls); (base.*fn)(arg1_conv()(ctx, arg1)); } template static void def_wrap(WrapCls cls_, const char *name) { cls_.def(name, wrapped_fn); } template static void def_wrap(WrapCls cls_, const char *name, Ta a = py::arg("arg1")) { cls_.def(name, wrapped_fn, a); } }; // Two parameters, no return template struct fn_wrapper_2a_v { using class_type = typename WrapIfNotContext::maybe_wrapped_t; using conv_arg1_type = typename arg1_conv::arg_type; using conv_arg2_type = typename arg2_conv::arg_type; static void wrapped_fn(class_type &cls, conv_arg1_type arg1, conv_arg2_type arg2) { Context *ctx = get_ctx(cls); Class &base = get_base(cls); (base.*fn)(arg1_conv()(ctx, arg1), arg2_conv()(ctx, arg2)); } template static void def_wrap(WrapCls cls_, const char *name) { cls_.def(name, wrapped_fn); } template static void def_wrap(WrapCls cls_, const char *name, Ta... a) { cls_.def(name, wrapped_fn, a...); } }; // Three parameters, no return template struct fn_wrapper_3a_v { using class_type = typename WrapIfNotContext::maybe_wrapped_t; using conv_arg1_type = typename arg1_conv::arg_type; using conv_arg2_type = typename arg2_conv::arg_type; using conv_arg3_type = typename arg3_conv::arg_type; static void wrapped_fn(class_type &cls, conv_arg1_type arg1, conv_arg2_type arg2, conv_arg3_type arg3) { Context *ctx = get_ctx(cls); Class &base = get_base(cls); (base.*fn)(arg1_conv()(ctx, arg1), arg2_conv()(ctx, arg2), arg3_conv()(ctx, arg3)); } template static void def_wrap(WrapCls cls_, const char *name) { cls_.def(name, wrapped_fn); } template static void def_wrap(WrapCls cls_, const char *name, Ta... a) { cls_.def(name, wrapped_fn, a...); } }; // Four parameters, no return template struct fn_wrapper_4a_v { using class_type = typename WrapIfNotContext::maybe_wrapped_t; using conv_arg1_type = typename arg1_conv::arg_type; using conv_arg2_type = typename arg2_conv::arg_type; using conv_arg3_type = typename arg3_conv::arg_type; using conv_arg4_type = typename arg4_conv::arg_type; static void wrapped_fn(class_type &cls, conv_arg1_type arg1, conv_arg2_type arg2, conv_arg3_type arg3, conv_arg4_type arg4) { Context *ctx = get_ctx(cls); Class &base = get_base(cls); (base.*fn)(arg1_conv()(ctx, arg1), arg2_conv()(ctx, arg2), arg3_conv()(ctx, arg3), arg4_conv()(ctx, arg4)); } template static void def_wrap(WrapCls cls_, const char *name) { cls_.def(name, wrapped_fn); } template static void def_wrap(WrapCls cls_, const char *name, Ta... a) { cls_.def(name, wrapped_fn, a...); } }; // Five parameters, no return template struct fn_wrapper_5a_v { using class_type = typename WrapIfNotContext::maybe_wrapped_t; using conv_arg1_type = typename arg1_conv::arg_type; using conv_arg2_type = typename arg2_conv::arg_type; using conv_arg3_type = typename arg3_conv::arg_type; using conv_arg4_type = typename arg4_conv::arg_type; using conv_arg5_type = typename arg5_conv::arg_type; static void wrapped_fn(class_type &cls, conv_arg1_type arg1, conv_arg2_type arg2, conv_arg3_type arg3, conv_arg4_type arg4, conv_arg5_type arg5) { Context *ctx = get_ctx(cls); Class &base = get_base(cls); (base.*fn)(arg1_conv()(ctx, arg1), arg2_conv()(ctx, arg2), arg3_conv()(ctx, arg3), arg4_conv()(ctx, arg4), arg5_conv()(ctx, arg5)); } template static void def_wrap(WrapCls cls_, const char *name) { cls_.def(name, wrapped_fn); } template static void def_wrap(WrapCls cls_, const char *name, Ta... a) { cls_.def(name, wrapped_fn, a...); } }; // Six parameters, no return template struct fn_wrapper_6a_v { using class_type = typename WrapIfNotContext::maybe_wrapped_t; using conv_arg1_type = typename arg1_conv::arg_type; using conv_arg2_type = typename arg2_conv::arg_type; using conv_arg3_type = typename arg3_conv::arg_type; using conv_arg4_type = typename arg4_conv::arg_type; using conv_arg5_type = typename arg5_conv::arg_type; using conv_arg6_type = typename arg6_conv::arg_type; static void wrapped_fn(class_type &cls, conv_arg1_type arg1, conv_arg2_type arg2, conv_arg3_type arg3, conv_arg4_type arg4, conv_arg5_type arg5, conv_arg6_type arg6) { Context *ctx = get_ctx(cls); Class &base = get_base(cls); (base.*fn)(arg1_conv()(ctx, arg1), arg2_conv()(ctx, arg2), arg3_conv()(ctx, arg3), arg4_conv()(ctx, arg4), arg5_conv()(ctx, arg5), arg6_conv()(ctx, arg6)); } template static void def_wrap(WrapCls cls_, const char *name) { cls_.def(name, wrapped_fn); } template static void def_wrap(WrapCls cls_, const char *name, Ta... a) { cls_.def(name, wrapped_fn, a...); } }; // Wrapped getter template struct readonly_wrapper { using class_type = typename WrapIfNotContext::maybe_wrapped_t; using conv_val_type = typename v_conv::ret_type; static py::object wrapped_getter(class_type &cls) { Context *ctx = get_ctx(cls); Class &base = get_base(cls); try { return py::cast(v_conv()(ctx, (base.*mem))); } catch (bad_wrap &) { return py::none(); } } template static void def_wrap(WrapCls cls_, const char *name) { cls_.def_property_readonly(name, wrapped_getter); } }; // Wrapped getter/setter template struct readwrite_wrapper { using class_type = typename WrapIfNotContext::maybe_wrapped_t; using conv_val_type = typename get_conv::ret_type; static py::object wrapped_getter(class_type &cls) { Context *ctx = get_ctx(cls); Class &base = get_base(cls); try { return py::cast(get_conv()(ctx, (base.*mem))); } catch (bad_wrap &) { return py::none(); } } using conv_arg_type = typename set_conv::arg_type; static void wrapped_setter(class_type &cls, conv_arg_type val) { Context *ctx = get_ctx(cls); Class &base = get_base(cls); (base.*mem) = set_conv()(ctx, val); } template static void def_wrap(WrapCls cls_, const char *name) { cls_.def_property(name, wrapped_getter, wrapped_setter); } }; } // namespace PythonConversion NEXTPNR_NAMESPACE_END #endif ef='#n390'>390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565