py: More const usage.

py/obj.c

@@ -222,7 +222,7 @@ bool mp_obj_equal(mp_obj_t o1, mp_obj_t o2) {
     return false;
 }
 
-machine_int_t mp_obj_get_int(mp_obj_t arg) {
+machine_int_t mp_obj_get_int(mp_const_obj_t arg) {
     // This function essentially performs implicit type conversion to int
     // Note that Python does NOT provide implicit type conversion from
     // float to int in the core expression language, try some_list[1.0].
@@ -242,7 +242,7 @@ machine_int_t mp_obj_get_int(mp_obj_t arg) {
 // returns false if arg is not of integral type
 // returns true and sets *value if it is of integral type
 // can throw OverflowError if arg is of integral type, but doesn't fit in a machine_int_t
-bool mp_obj_get_int_maybe(mp_obj_t arg, machine_int_t *value) {
+bool mp_obj_get_int_maybe(mp_const_obj_t arg, machine_int_t *value) {
     if (arg == mp_const_false) {
         *value = 0;
     } else if (arg == mp_const_true) {

py/obj.h

@@ -158,7 +158,7 @@ typedef enum _mp_map_lookup_kind_t {
     MP_MAP_LOOKUP_REMOVE_IF_FOUND,    // 2
 } mp_map_lookup_kind_t;
 
-static inline bool MP_MAP_SLOT_IS_FILLED(mp_map_t *map, machine_uint_t pos) { return ((map)->table[pos].key != MP_OBJ_NULL && (map)->table[pos].key != MP_OBJ_SENTINEL); }
+static inline bool MP_MAP_SLOT_IS_FILLED(const mp_map_t *map, machine_uint_t pos) { return ((map)->table[pos].key != MP_OBJ_NULL && (map)->table[pos].key != MP_OBJ_SENTINEL); }
 
 void mp_map_init(mp_map_t *map, int n);
 void mp_map_init_fixed_table(mp_map_t *map, int n, const mp_obj_t *table);
@@ -177,7 +177,7 @@ typedef struct _mp_set_t {
     mp_obj_t *table;
 } mp_set_t;
 
-static inline bool MP_SET_SLOT_IS_FILLED(mp_set_t *set, machine_uint_t pos) { return ((set)->table[pos] != MP_OBJ_NULL && (set)->table[pos] != MP_OBJ_SENTINEL); }
+static inline bool MP_SET_SLOT_IS_FILLED(const mp_set_t *set, machine_uint_t pos) { return ((set)->table[pos] != MP_OBJ_NULL && (set)->table[pos] != MP_OBJ_SENTINEL); }
 
 void mp_set_init(mp_set_t *set, int n);
 mp_obj_t mp_set_lookup(mp_set_t *set, mp_obj_t index, mp_map_lookup_kind_t lookup_kind);
@@ -424,8 +424,8 @@ bool mp_obj_is_callable(mp_obj_t o_in);
 machine_int_t mp_obj_hash(mp_obj_t o_in);
 bool mp_obj_equal(mp_obj_t o1, mp_obj_t o2);
 
-machine_int_t mp_obj_get_int(mp_obj_t arg);
-bool mp_obj_get_int_maybe(mp_obj_t arg, machine_int_t *value);
+machine_int_t mp_obj_get_int(mp_const_obj_t arg);
+bool mp_obj_get_int_maybe(mp_const_obj_t arg, machine_int_t *value);
 #if MICROPY_ENABLE_FLOAT
 mp_float_t mp_obj_get_float(mp_obj_t self_in);
 void mp_obj_get_complex(mp_obj_t self_in, mp_float_t *real, mp_float_t *imag);
@@ -452,7 +452,7 @@ machine_int_t mp_obj_int_get(mp_obj_t self_in);
 mp_float_t mp_obj_int_as_float(mp_obj_t self_in);
 #endif
 // Will raise exception if value doesn't fit into machine_int_t
-machine_int_t mp_obj_int_get_checked(mp_obj_t self_in);
+machine_int_t mp_obj_int_get_checked(mp_const_obj_t self_in);
 
 // exception
 #define mp_obj_is_native_exception_instance(o) (mp_obj_get_type(o)->make_new == mp_obj_exception_make_new)
@@ -540,7 +540,7 @@ typedef struct _mp_obj_fun_native_t { // need this so we can define const object
 
 bool mp_obj_fun_prepare_simple_args(mp_obj_t self_in, uint n_args, uint n_kw, const mp_obj_t *args,
                             uint *out_args1_len, const mp_obj_t **out_args1, uint *out_args2_len, const mp_obj_t **out_args2);
-const char *mp_obj_fun_get_name(mp_obj_t fun);
+const char *mp_obj_fun_get_name(mp_const_obj_t fun);
 const char *mp_obj_code_get_name(const byte *code_info);
 
 mp_obj_t mp_identity(mp_obj_t self);

py/objfun.c

@@ -154,8 +154,8 @@ const char *mp_obj_code_get_name(const byte *code_info) {
     return qstr_str(block_name);
 }
 
-const char *mp_obj_fun_get_name(mp_obj_t fun_in) {
-    mp_obj_fun_bc_t *fun = fun_in;
+const char *mp_obj_fun_get_name(mp_const_obj_t fun_in) {
+    const mp_obj_fun_bc_t *fun = fun_in;
     const byte *code_info = fun->bytecode;
     return mp_obj_code_get_name(code_info);
 }

py/objint.c

@@ -129,7 +129,7 @@ STATIC uint int_as_str_size_formatted(uint base, const char *prefix, char comma)
 //
 // The resulting formatted string will be returned from this function and the
 // formatted size will be in *fmt_size.
-char *mp_obj_int_formatted(char **buf, int *buf_size, int *fmt_size, mp_obj_t self_in,
+char *mp_obj_int_formatted(char **buf, int *buf_size, int *fmt_size, mp_const_obj_t self_in,
                            int base, const char *prefix, char base_char, char comma) {
     fmt_int_t num;
     if (MP_OBJ_IS_SMALL_INT(self_in)) {

py/objint.h

@@ -34,9 +34,9 @@ typedef struct _mp_obj_int_t {
 } mp_obj_int_t;
 
 void mp_obj_int_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in, mp_print_kind_t kind);
-char *mp_obj_int_formatted(char **buf, int *buf_size, int *fmt_size, mp_obj_t self_in,
+char *mp_obj_int_formatted(char **buf, int *buf_size, int *fmt_size, mp_const_obj_t self_in,
                            int base, const char *prefix, char base_char, char comma);
-char *mp_obj_int_formatted_impl(char **buf, int *buf_size, int *fmt_size, mp_obj_t self_in,
+char *mp_obj_int_formatted_impl(char **buf, int *buf_size, int *fmt_size, mp_const_obj_t self_in,
                                 int base, const char *prefix, char base_char, char comma);
 bool mp_obj_int_is_positive(mp_obj_t self_in);
 mp_obj_t mp_obj_int_unary_op(int op, mp_obj_t o_in);

py/objint_longlong.c

@@ -186,7 +186,7 @@ machine_int_t mp_obj_int_get(mp_obj_t self_in) {
     }
 }
 
-machine_int_t mp_obj_int_get_checked(mp_obj_t self_in) {
+machine_int_t mp_obj_int_get_checked(mp_const_obj_t self_in) {
     // TODO: Check overflow
     return mp_obj_int_get(self_in);
 }

py/objint_mpz.c

@@ -58,10 +58,10 @@ STATIC mp_obj_int_t *mp_obj_int_new_mpz(void) {
 // formatted size will be in *fmt_size.
 //
 // This particular routine should only be called for the mpz representation of the int.
-char *mp_obj_int_formatted_impl(char **buf, int *buf_size, int *fmt_size, mp_obj_t self_in,
+char *mp_obj_int_formatted_impl(char **buf, int *buf_size, int *fmt_size, mp_const_obj_t self_in,
                                 int base, const char *prefix, char base_char, char comma) {
     assert(MP_OBJ_IS_TYPE(self_in, &mp_type_int));
-    mp_obj_int_t *self = self_in;
+    const mp_obj_int_t *self = self_in;
 
     uint needed_size = mpz_as_str_size_formatted(&self->mpz, base, prefix, comma);
     if (needed_size > *buf_size) {
@@ -284,11 +284,11 @@ machine_int_t mp_obj_int_get(mp_obj_t self_in) {
     }
 }
 
-machine_int_t mp_obj_int_get_checked(mp_obj_t self_in) {
+machine_int_t mp_obj_int_get_checked(mp_const_obj_t self_in) {
     if (MP_OBJ_IS_SMALL_INT(self_in)) {
         return MP_OBJ_SMALL_INT_VALUE(self_in);
     } else {
-        mp_obj_int_t *self = self_in;
+        const mp_obj_int_t *self = self_in;
         machine_int_t value;
         if (mpz_as_int_checked(&self->mpz, &value)) {
             return value;