codeobj.h

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/*
# This file is Copyright 2003, 2006, 2007, 2009 Dean Hall.
#
# This file is part of the PyMite VM.
# The PyMite VM is free software: you can redistribute it and/or modify
# it under the terms of the GNU GENERAL PUBLIC LICENSE Version 2.
#
# The PyMite VM 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 GENERAL PUBLIC LICENSE Version 2
# is seen in the file COPYING in this directory.
*/


#ifndef __CODEOBJ_H__
#define __CODEOBJ_H__


#define CI_TYPE_FIELD       0
#define CI_SIZE_FIELD       1
#define CI_ARGCOUNT_FIELD   3
#define CI_FLAGS_FIELD      4
#define CI_STACKSIZE_FIELD  5
#define CI_NLOCALS_FIELD    6
#ifdef HAVE_CLOSURES
#define CI_FREEVARS_FIELD   7
#define CI_NAMES_FIELD      8
#else
#define CI_NAMES_FIELD      7
#endif /* HAVE_CLOSURES */

#define NATIVE_IMAGE_SIZE   4

/* Masks for co_flags (from Python's code.h) */
#define CO_OPTIMIZED 0x01
#define CO_NEWLOCALS 0x02
#define CO_VARARGS 0x04
#define CO_VARKEYWORDS 0x08
#define CO_NESTED 0x10
#define CO_GENERATOR 0x20
#define CO_NOFREE 0x40

typedef struct PmCo_s
{
    PmObjDesc_t od;
    PmMemSpace_t co_memspace:8;
    uint8_t const *co_codeimgaddr;
    pPmTuple_t co_names;
    pPmTuple_t co_consts;
#ifdef HAVE_CLOSURES

    uint8_t co_nfreevars;
    pPmTuple_t co_cellvars;
    uint16_t co_nlocals;
#endif /* HAVE_CLOSURES */

    uint8_t const *co_codeaddr;
    uint8_t co_argcount;
    uint8_t co_flags;
} PmCo_t,
 *pPmCo_t;

typedef struct PmNo_s
{
    PmObjDesc_t od;
    int8_t no_argcount;
    int16_t no_funcindx;
} PmNo_t,
 *pPmNo_t;


PmReturn_t
co_loadFromImg(PmMemSpace_t memspace, uint8_t const **paddr, pPmObj_t *r_pco);

PmReturn_t no_loadFromImg(PmMemSpace_t memspace,
                          uint8_t const **paddr, pPmObj_t *r_pno);

#endif /* __CODEOBJ_H__ */