diff options
| -rw-r--r-- | py/obj.h | 1 | ||||
| -rw-r--r-- | py/objpolyiter.c | 54 | ||||
| -rw-r--r-- | py/py.mk | 1 |
3 files changed, 56 insertions, 0 deletions
@@ -539,6 +539,7 @@ extern const mp_obj_type_t mp_type_property; extern const mp_obj_type_t mp_type_stringio; extern const mp_obj_type_t mp_type_bytesio; extern const mp_obj_type_t mp_type_reversed; +extern const mp_obj_type_t mp_type_polymorph_iter; // Exceptions extern const mp_obj_type_t mp_type_BaseException; diff --git a/py/objpolyiter.c b/py/objpolyiter.c new file mode 100644 index 0000000000..9bba538c5f --- /dev/null +++ b/py/objpolyiter.c @@ -0,0 +1,54 @@ +/* + * This file is part of the MicroPython project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2015 Paul Sokolovsky + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include <stdlib.h> + +#include "py/nlr.h" +#include "py/runtime.h" + +// This is universal iterator type which calls "iternext" method stored in +// particular object instance. (So, each instance of this time can have its +// own iteration behavior.) Having this type saves to define type objects +// for various internal iterator objects. + +// Any instance should have these 2 fields at the beginning +typedef struct _mp_obj_polymorph_iter_t { + mp_obj_base_t base; + mp_fun_1_t iternext; +} mp_obj_polymorph_iter_t; + +STATIC mp_obj_t polymorph_it_iternext(mp_obj_t self_in) { + mp_obj_polymorph_iter_t *self = MP_OBJ_TO_PTR(self_in); + // Redirect call to object instance's iternext method + return self->iternext(self_in); +} + +const mp_obj_type_t mp_type_polymorph_iter = { + { &mp_type_type }, + .name = MP_QSTR_iterator, + .getiter = mp_identity, + .iternext = polymorph_it_iternext, +}; @@ -122,6 +122,7 @@ PY_O_BASENAME = \ objmap.o \ objmodule.o \ objobject.o \ + objpolyiter.o \ objproperty.o \ objnone.o \ objnamedtuple.o \ |