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LibrePilot/flight/libraries/PyMite/lib/sizeof.py

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# This file is Copyright 2009, 2010 Dean Hall.
#
# This file is part of the Python-on-a-Chip program.
# Python-on-a-Chip is free software: you can redistribute it and/or modify
# it under the terms of the GNU LESSER GENERAL PUBLIC LICENSE Version 2.1.
#
# Python-on-a-Chip is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# A copy of the GNU LESSER GENERAL PUBLIC LICENSE Version 2.1
# is seen in the file COPYING in this directory.
## @file
# @copybrief sizeof
## @package sizeof
# @brief Provides PyMite's sizeof module.
#
# <b>USAGE</b>
#
# \code sizeof.sizeof(obj) \endcode
#
# Prints the size of the given object. If obj is an integer from 0..31,
# the size of the object type represented by that integer will be returned.
"""__NATIVE__
#include "pm.h"
"""
def sizeof(obj):
"""__NATIVE__
pPmObj_t pobj;
pPmObj_t psize;
int32_t n;
PmReturn_t retval = PM_RET_OK;
int32_t static size[] = {
sizeof(PmObj_t), /* None type */
sizeof(PmInt_t),
sizeof(PmFloat_t),
sizeof(PmString_t),
sizeof(PmTuple_t),
sizeof(PmCo_t),
sizeof(PmFunc_t), /* Module Obj uses func struct */
sizeof(PmClass_t),
sizeof(PmFunc_t),
sizeof(PmClass_t), /* Class instance */
0, /* CIM */
0, /* NIM */
sizeof(PmCo_t), /* NOB */
sizeof(PmThread_t),
sizeof(PmClass_t), /* Exception instance */
sizeof(PmBoolean_t),
sizeof(PmCodeImgObj_t),
sizeof(PmList_t),
sizeof(PmDict_t),
0,
0,
0,
0,
0,
0,
sizeof(PmFrame_t),
sizeof(PmBlock_t),
sizeof(Segment_t),
sizeof(Seglist_t),
sizeof(PmSeqIter_t),
sizeof(PmNativeFrame_t),
};
/* If wrong number of args, raise TypeError */
if (NATIVE_GET_NUM_ARGS() != 1)
{
PM_RAISE(retval, PM_RET_EX_TYPE);
return retval;
}
pobj = NATIVE_GET_LOCAL(0);
if (OBJ_GET_TYPE(pobj) == OBJ_TYPE_INT)
{
n = ((pPmInt_t)pobj)->val;
if ((n >= 0) && (n < 32))
{
/* Return the size of the type represented by the integer */
retval = int_new(size[n], &psize);
}
else
{
/* Return the size of an integer object */
retval = int_new(OBJ_GET_SIZE(pobj), &psize);
}
}
else
{
/* Return the size of the given non-integer object */
retval = int_new(OBJ_GET_SIZE(pobj), &psize);
}
NATIVE_SET_TOS(psize);
return retval;
"""
pass
def print_sizes():
types = (
'NON',
'INT',
'FLT',
'STR',
'TUP',
'COB',
'MOD',
'CLO',
'FXN',
'CLI',
'CIM',
'NIM',
'NOB',
'THR',
0,
'BOL',
'CIO',
'LST',
'DIC',
0, 0, 0, 0, 0, 0,
'FRM',
'BLK',
'SEG',
'SGL',
'SQI',
'NFM',
0,
)
for i in range(32):
if types[i] != 0:
print "sizeof(", types[i], ") = ", sizeof(i)
#:mode=c: