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decf8e6a8b
The STATIC macro was introduced a very long time ago in commit
d5df6cd44a. The original reason for this was
to have the option to define it to nothing so that all static functions
become global functions and therefore visible to certain debug tools, so
one could do function size comparison and other things.
This STATIC feature is rarely (if ever) used. And with the use of LTO and
heavy inline optimisation, analysing the size of individual functions when
they are not static is not a good representation of the size of code when
fully optimised.
So the macro does not have much use and it's simpler to just remove it.
Then you know exactly what it's doing. For example, newcomers don't have
to learn what the STATIC macro is and why it exists. Reading the code is
also less "loud" with a lowercase static.
One other minor point in favour of removing it, is that it stops bugs with
`STATIC inline`, which should always be `static inline`.
Methodology for this commit was:
1) git ls-files | egrep '\.[ch]$' | \
xargs sed -Ei "s/(^| )STATIC($| )/\1static\2/"
2) Do some manual cleanup in the diff by searching for the word STATIC in
comments and changing those back.
3) "git-grep STATIC docs/", manually fixed those cases.
4) "rg -t python STATIC", manually fixed codegen lines that used STATIC.
This work was funded through GitHub Sponsors.
Signed-off-by: Angus Gratton <angus@redyak.com.au>
74 lines
2.6 KiB
C
74 lines
2.6 KiB
C
/*
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This example extends on features0 but demonstrates how to define a class.
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The Factorial class constructor takes an integer, and then the calculate
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method can be called to get the factorial.
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>>> import features4
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>>> f = features4.Factorial(4)
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>>> f.calculate()
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24
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*/
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// Include the header file to get access to the MicroPython API
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#include "py/dynruntime.h"
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// This is type(Factorial)
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mp_obj_full_type_t mp_type_factorial;
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// This is the internal state of a Factorial instance.
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typedef struct {
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mp_obj_base_t base;
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mp_int_t n;
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} mp_obj_factorial_t;
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// Essentially Factorial.__new__ (but also kind of __init__).
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// Takes a single argument (the number to find the factorial of)
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static mp_obj_t factorial_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args_in) {
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mp_arg_check_num(n_args, n_kw, 1, 1, false);
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mp_obj_factorial_t *o = mp_obj_malloc(mp_obj_factorial_t, type);
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o->n = mp_obj_get_int(args_in[0]);
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return MP_OBJ_FROM_PTR(o);
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}
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static mp_int_t factorial_helper(mp_int_t x) {
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if (x == 0) {
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return 1;
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}
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return x * factorial_helper(x - 1);
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}
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// Implements Factorial.calculate()
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static mp_obj_t factorial_calculate(mp_obj_t self_in) {
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mp_obj_factorial_t *self = MP_OBJ_TO_PTR(self_in);
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return mp_obj_new_int(factorial_helper(self->n));
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}
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static MP_DEFINE_CONST_FUN_OBJ_1(factorial_calculate_obj, factorial_calculate);
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// Locals dict for the Factorial type (will have a single method, calculate,
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// added in mpy_init).
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mp_map_elem_t factorial_locals_dict_table[1];
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static MP_DEFINE_CONST_DICT(factorial_locals_dict, factorial_locals_dict_table);
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// This is the entry point and is called when the module is imported
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mp_obj_t mpy_init(mp_obj_fun_bc_t *self, size_t n_args, size_t n_kw, mp_obj_t *args) {
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// This must be first, it sets up the globals dict and other things
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MP_DYNRUNTIME_INIT_ENTRY
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// Initialise the type.
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mp_type_factorial.base.type = (void*)&mp_type_type;
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mp_type_factorial.flags = MP_TYPE_FLAG_NONE;
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mp_type_factorial.name = MP_QSTR_Factorial;
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MP_OBJ_TYPE_SET_SLOT(&mp_type_factorial, make_new, factorial_make_new, 0);
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factorial_locals_dict_table[0] = (mp_map_elem_t){ MP_OBJ_NEW_QSTR(MP_QSTR_calculate), MP_OBJ_FROM_PTR(&factorial_calculate_obj) };
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MP_OBJ_TYPE_SET_SLOT(&mp_type_factorial, locals_dict, (void*)&factorial_locals_dict, 1);
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// Make the Factorial type available on the module.
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mp_store_global(MP_QSTR_Factorial, MP_OBJ_FROM_PTR(&mp_type_factorial));
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// This must be last, it restores the globals dict
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MP_DYNRUNTIME_INIT_EXIT
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}
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