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py: add call to __init__ when instantiating class object.

This commit is contained in:
Damien 2013-11-25 23:40:02 +00:00
parent c1075ddc8f
commit d47f9d5a4f
1 changed files with 31 additions and 5 deletions
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36
py/runtime.c
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@ -1757,15 +1757,41 @@ py_obj_t rt_call_function_n(py_obj_t fun, int n_args, const py_obj_t *args) {
} else if (IS_O(fun, O_CLASS)) {
// instantiate an instance of a class
if (n_args != 0) {
n_args_fun = 0;
goto bad_n_args;
}
DEBUG_OP_printf("instantiate object of class %p with no args\n", fun);
DEBUG_OP_printf("instantiate object of class %p with %d args\n", fun, n_args);
py_obj_base_t *o = m_new(py_obj_base_t, 1);
o->kind = O_OBJ;
o->u_obj.class = fun;
o->u_obj.members = py_map_new(MAP_QSTR, 0);
// look for __init__ function
py_obj_base_t *o_class = fun;
py_map_elem_t *init_fn = py_qstr_map_lookup(o_class->u_class.locals, qstr_from_str_static("__init__"), false);
if (init_fn != NULL) {
// call __init__ function
py_obj_t init_ret;
if (n_args == 0) {
init_ret = rt_call_function_n(init_fn->value, 1, (py_obj_t*)&o);
} else {
py_obj_t *args2 = m_new(py_obj_t, n_args + 1);
memcpy(args2, args, n_args * sizeof(py_obj_t));
args2[n_args] = o;
init_ret = rt_call_function_n(init_fn->value, n_args + 1, args2);
m_free(args2);
}
if (init_ret != py_const_none) {
nlr_jump(py_obj_new_exception_2(q_TypeError, "__init__() should return None, not '%s'", py_obj_get_type_str(init_ret), NULL));
}
} else {
// TODO
if (n_args != 0) {
n_args_fun = 0;
goto bad_n_args;
}
}
return o;
} else {