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py: mp_execute_byte_code has 2 arg arrays, for more efficient default params.

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Damien George
2014-02-01 18:29:40 +00:00
parent 87413a4d0c
commit fb083ea986
4 changed files with 46 additions and 46 deletions
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25
py/objfun.c
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@@ -154,26 +154,13 @@ mp_obj_t fun_bc_call(mp_obj_t self_in, uint n_args, uint n_kw, const mp_obj_t *a
nlr_jump(mp_obj_new_exception_msg(MP_QSTR_TypeError, "function does not take keyword arguments"));
}
mp_obj_t full_args[n_args];
if (n_args < self->n_args) {
memcpy(full_args, args, n_args * sizeof(*args));
int use_def_args = self->n_args - n_args;
memcpy(full_args + n_args, self->def_args + self->n_def_args - use_def_args, use_def_args * sizeof(*args));
args = full_args;
n_args = self->n_args;
}
// optimisation: allow the compiler to optimise this tail call for
// the common case when the globals don't need to be changed
uint use_def_args = self->n_args - n_args;
mp_map_t *old_globals = rt_globals_get();
if (self->globals == old_globals) {
return mp_execute_byte_code(self->bytecode, args, n_args, self->n_state);
} else {
rt_globals_set(self->globals);
mp_obj_t result = mp_execute_byte_code(self->bytecode, args, n_args, self->n_state);
rt_globals_set(old_globals);
return result;
}
rt_globals_set(self->globals);
mp_obj_t result = mp_execute_byte_code(self->bytecode, args, n_args, self->def_args + self->n_def_args - use_def_args, use_def_args, self->n_state);
rt_globals_set(old_globals);
return result;
}
const mp_obj_type_t fun_bc_type = {