py/modsys: Initial implementation of sys.getsizeof().

Implemented as a new MP_UNARY_OP. This patch adds support lists, dicts and
instances.
crypto-aes
Paul Sokolovsky 6 years ago
parent 7d4a2f773c
commit bfc2092dc5

@ -4,6 +4,7 @@
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 Damien P. George
* Copyright (c) 2014-2017 Paul Sokolovsky
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
@ -31,8 +32,11 @@
#include "py/objtuple.h"
#include "py/objstr.h"
#include "py/objint.h"
#include "py/objtype.h"
#include "py/stream.h"
#include "py/smallint.h"
#include "py/runtime0.h"
#include "py/runtime.h"
#if MICROPY_PY_SYS
@ -143,6 +147,11 @@ STATIC mp_obj_t mp_sys_exc_info(void) {
MP_DEFINE_CONST_FUN_OBJ_0(mp_sys_exc_info_obj, mp_sys_exc_info);
#endif
STATIC mp_obj_t mp_sys_getsizeof(mp_obj_t obj) {
return mp_unary_op(MP_UNARY_OP_SIZEOF, obj);
}
MP_DEFINE_CONST_FUN_OBJ_1(mp_sys_getsizeof_obj, mp_sys_getsizeof);
STATIC const mp_rom_map_elem_t mp_module_sys_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_sys) },
@ -192,6 +201,9 @@ STATIC const mp_rom_map_elem_t mp_module_sys_globals_table[] = {
#if MICROPY_PY_SYS_EXC_INFO
{ MP_ROM_QSTR(MP_QSTR_exc_info), MP_ROM_PTR(&mp_sys_exc_info_obj) },
#endif
#if MICROPY_PY_SYS_GETSIZEOF
{ MP_ROM_QSTR(MP_QSTR_getsizeof), MP_ROM_PTR(&mp_sys_getsizeof_obj) },
#endif
/*
* Extensions to CPython

@ -944,6 +944,11 @@ typedef double mp_float_t;
#define MICROPY_PY_SYS_EXIT (1)
#endif
// Whether to provide "sys.getsizeof" function
#ifndef MICROPY_PY_SYS_GETSIZEOF
#define MICROPY_PY_SYS_GETSIZEOF (0)
#endif
// Whether to provide sys.{stdin,stdout,stderr} objects
#ifndef MICROPY_PY_SYS_STDFILES
#define MICROPY_PY_SYS_STDFILES (0)

@ -105,6 +105,12 @@ STATIC mp_obj_t dict_unary_op(mp_uint_t op, mp_obj_t self_in) {
switch (op) {
case MP_UNARY_OP_BOOL: return mp_obj_new_bool(self->map.used != 0);
case MP_UNARY_OP_LEN: return MP_OBJ_NEW_SMALL_INT(self->map.used);
#if MICROPY_PY_SYS_GETSIZEOF
case MP_UNARY_OP_SIZEOF: {
size_t sz = sizeof(*self) + sizeof(*self->map.table) * self->map.alloc;
return MP_OBJ_NEW_SMALL_INT(sz);
}
#endif
default: return MP_OBJ_NULL; // op not supported
}
}

@ -104,6 +104,12 @@ STATIC mp_obj_t list_unary_op(mp_uint_t op, mp_obj_t self_in) {
switch (op) {
case MP_UNARY_OP_BOOL: return mp_obj_new_bool(self->len != 0);
case MP_UNARY_OP_LEN: return MP_OBJ_NEW_SMALL_INT(self->len);
#if MICROPY_PY_SYS_GETSIZEOF
case MP_UNARY_OP_SIZEOF: {
size_t sz = sizeof(*self) + sizeof(mp_obj_t) * self->alloc;
return MP_OBJ_NEW_SMALL_INT(sz);
}
#endif
default: return MP_OBJ_NULL; // op not supported
}
}

@ -339,11 +339,27 @@ const qstr mp_unary_op_method_name[] = {
[MP_UNARY_OP_NEGATIVE] = MP_QSTR___neg__,
[MP_UNARY_OP_INVERT] = MP_QSTR___invert__,
#endif
#if MICROPY_PY_SYS_GETSIZEOF
[MP_UNARY_OP_SIZEOF] = MP_QSTR_getsizeof,
#endif
[MP_UNARY_OP_NOT] = MP_QSTR_, // don't need to implement this, used to make sure array has full size
};
STATIC mp_obj_t instance_unary_op(mp_uint_t op, mp_obj_t self_in) {
mp_obj_instance_t *self = MP_OBJ_TO_PTR(self_in);
#if MICROPY_PY_SYS_GETSIZEOF
if (MP_UNLIKELY(op == MP_UNARY_OP_SIZEOF)) {
// TODO: This doesn't count inherited objects (self->subobj)
const mp_obj_type_t *native_base;
size_t num_native_bases = instance_count_native_bases(mp_obj_get_type(self_in), &native_base);
size_t sz = sizeof(*self) + sizeof(*self->subobj) * num_native_bases
+ sizeof(*self->members.table) * self->members.alloc;
return MP_OBJ_NEW_SMALL_INT(sz);
}
#endif
qstr op_name = mp_unary_op_method_name[op];
/* Still try to lookup native slot
if (op_name == 0) {

@ -50,6 +50,7 @@ typedef enum {
MP_UNARY_OP_NEGATIVE,
MP_UNARY_OP_INVERT,
MP_UNARY_OP_NOT,
MP_UNARY_OP_SIZEOF, // for sys.getsizeof()
} mp_unary_op_t;
typedef enum {

@ -25,7 +25,8 @@ ame__
__name__ path argv version
version_info implementation platform byteorder
maxsize exit stdin stdout
stderr modules exc_info print_exception
stderr modules exc_info getsizeof
print_exception
ementation
# attrtuple
(start=1, stop=2, step=3)

@ -37,6 +37,7 @@
#define MICROPY_PY_DELATTR_SETATTR (1)
#define MICROPY_PY_BUILTINS_HELP (1)
#define MICROPY_PY_BUILTINS_HELP_MODULES (1)
#define MICROPY_PY_SYS_GETSIZEOF (1)
#define MICROPY_PY_URANDOM_EXTRA_FUNCS (1)
#define MICROPY_PY_IO_BUFFEREDWRITER (1)
#undef MICROPY_VFS_FAT

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