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py: Improve exception bases, reduces ROM usage.

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Thanks to @pfalcon for the tip!
This commit is contained in:
Damien George 2014-02-15 21:05:25 +00:00
parent 8725f8f7de
commit 22a0865d54
2 changed files with 23 additions and 17 deletions
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38
py/objexcept.c
View File

@ -66,30 +66,34 @@ const mp_obj_type_t mp_type_BaseException = {
.make_new = mp_obj_exception_make_new,
};
#define MP_DEFINE_EXCEPTION(exc_name) \
STATIC const mp_obj_tuple_t mp_type_ ## exc_name ## _bases_tuple = {{&tuple_type}, 1, {(mp_obj_t)&mp_type_BaseException}};\
#define MP_DEFINE_EXCEPTION_BASE(base_name) \
STATIC const mp_obj_tuple_t mp_type_ ## base_name ## _base_tuple = {{&tuple_type}, 1, {(mp_obj_t)&mp_type_ ## base_name}};\
#define MP_DEFINE_EXCEPTION(exc_name, base_name) \
const mp_obj_type_t mp_type_ ## exc_name = { \
{ &mp_type_type }, \
.name = MP_QSTR_ ## exc_name, \
.print = mp_obj_exception_print, \
.make_new = mp_obj_exception_make_new, \
.bases_tuple = (mp_obj_t)&mp_type_ ## exc_name ## _bases_tuple, \
.bases_tuple = (mp_obj_t)&mp_type_ ## base_name ## _base_tuple, \
};
MP_DEFINE_EXCEPTION(AssertionError)
MP_DEFINE_EXCEPTION(AttributeError)
MP_DEFINE_EXCEPTION(ImportError)
MP_DEFINE_EXCEPTION(IndentationError)
MP_DEFINE_EXCEPTION(IndexError)
MP_DEFINE_EXCEPTION(KeyError)
MP_DEFINE_EXCEPTION(NameError)
MP_DEFINE_EXCEPTION(SyntaxError)
MP_DEFINE_EXCEPTION(TypeError)
MP_DEFINE_EXCEPTION(ValueError)
MP_DEFINE_EXCEPTION(OverflowError)
MP_DEFINE_EXCEPTION(OSError)
MP_DEFINE_EXCEPTION(NotImplementedError)
MP_DEFINE_EXCEPTION(StopIteration)
MP_DEFINE_EXCEPTION_BASE(BaseException)
MP_DEFINE_EXCEPTION(AssertionError, BaseException)
MP_DEFINE_EXCEPTION(AttributeError, BaseException)
MP_DEFINE_EXCEPTION(ImportError, BaseException)
MP_DEFINE_EXCEPTION(IndentationError, BaseException)
MP_DEFINE_EXCEPTION(IndexError, BaseException)
MP_DEFINE_EXCEPTION(KeyError, BaseException)
MP_DEFINE_EXCEPTION(NameError, BaseException)
MP_DEFINE_EXCEPTION(SyntaxError, BaseException)
MP_DEFINE_EXCEPTION(TypeError, BaseException)
MP_DEFINE_EXCEPTION(ValueError, BaseException)
MP_DEFINE_EXCEPTION(OverflowError, BaseException)
MP_DEFINE_EXCEPTION(OSError, BaseException)
MP_DEFINE_EXCEPTION(NotImplementedError, BaseException)
MP_DEFINE_EXCEPTION(StopIteration, BaseException)
mp_obj_t mp_obj_new_exception(const mp_obj_type_t *exc_type) {
return mp_obj_new_exception_msg_varg(exc_type, NULL);

2
py/runtime.c
View File

@ -1003,6 +1003,8 @@ mp_obj_t rt_make_raise_obj(mp_obj_t o) {
if (mp_obj_is_exception_type(o)) {
// o is an exception type (it is derived from BaseException (or is BaseException))
// create and return a new exception instance by calling o
// TODO could have an option to disable traceback, then builtin exceptions (eg TypeError)
// could have const instances in ROM which we return here instead
return rt_call_function_n_kw(o, 0, 0, NULL);
} else if (mp_obj_is_exception_instance(o)) {
// o is an instance of an exception, so use it as the exception