From d99b05282d14ceb0163cbcd059aa37bdb415af43 Mon Sep 17 00:00:00 2001 From: Damien Date: Sat, 21 Dec 2013 18:17:45 +0000 Subject: Change object representation from 1 big union to individual structs. A big change. Micro Python objects are allocated as individual structs with the first element being a pointer to the type information (which is itself an object). This scheme follows CPython. Much more flexible, not necessarily slower, uses same heap memory, and can allocate objects statically. Also change name prefix, from py_ to mp_ (mp for Micro Python). --- py/objnone.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 py/objnone.c (limited to 'py/objnone.c') diff --git a/py/objnone.c b/py/objnone.c new file mode 100644 index 0000000000..f7b665e997 --- /dev/null +++ b/py/objnone.c @@ -0,0 +1,35 @@ +#include +#include + +#include "nlr.h" +#include "misc.h" +#include "mpconfig.h" +#include "obj.h" + +typedef struct _mp_obj_none_t { + mp_obj_base_t base; +} mp_obj_none_t; + +void none_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in) { + print(env, "None"); +} + +const mp_obj_type_t none_type = { + { &mp_const_type }, + "NoneType", + none_print, // print + NULL, // call_n + NULL, // unary_op + NULL, // binary_op + NULL, // getiter + NULL, // iternext + {{NULL, NULL},}, // method list +}; + +static const mp_obj_none_t none_obj = {{&none_type}}; +const mp_obj_t mp_const_none = (mp_obj_t)&none_obj; + +// the stop-iteration object just needs to be something unique +// it's not the StopIteration exception +static const mp_obj_none_t stop_it_obj = {{&none_type}}; +const mp_obj_t mp_const_stop_iteration = (mp_obj_t)&stop_it_obj; -- cgit v1.2.3