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File Content: `code.h`

#ifndef Py_CPYTHON_CODE_H
#  error "this header file must not be included directly"
#endif

typedef uint16_t _Py_CODEUNIT;

#ifdef WORDS_BIGENDIAN
#  define _Py_OPCODE(word) ((word) >> 8)
#  define _Py_OPARG(word) ((word) & 255)
#else
#  define _Py_OPCODE(word) ((word) & 255)
#  define _Py_OPARG(word) ((word) >> 8)
#endif

typedef struct _PyOpcache _PyOpcache;

/* Bytecode object */
struct PyCodeObject {
    PyObject_HEAD
    int co_argcount;            /* #arguments, except *args */
    int co_posonlyargcount;     /* #positional only arguments */
    int co_kwonlyargcount;      /* #keyword only arguments */
    int co_nlocals;             /* #local variables */
    int co_stacksize;           /* #entries needed for evaluation stack */
    int co_flags;               /* CO_..., see below */
    int co_firstlineno;         /* first source line number */
    PyObject *co_code;          /* instruction opcodes */
    PyObject *co_consts;        /* list (constants used) */
    PyObject *co_names;         /* list of strings (names used) */
    PyObject *co_varnames;      /* tuple of strings (local variable names) */
    PyObject *co_freevars;      /* tuple of strings (free variable names) */
    PyObject *co_cellvars;      /* tuple of strings (cell variable names) */
    /* The rest aren't used in either hash or comparisons, except for co_name,
       used in both. This is done to preserve the name and line number
       for tracebacks and debuggers; otherwise, constant de-duplication
       would collapse identical functions/lambdas defined on different lines.
    */
    Py_ssize_t *co_cell2arg;    /* Maps cell vars which are arguments. */
    PyObject *co_filename;      /* unicode (where it was loaded from) */
    PyObject *co_name;          /* unicode (name, for reference) */
    PyObject *co_linetable;     /* string (encoding addr<->lineno mapping) See
                                   Objects/lnotab_notes.txt for details. */
    void *co_zombieframe;       /* for optimization only (see frameobject.c) */
    PyObject *co_weakreflist;   /* to support weakrefs to code objects */
    /* Scratch space for extra data relating to the code object.
       Type is a void* to keep the format private in codeobject.c to force
       people to go through the proper APIs. */
    void *co_extra;

    /* Per opcodes just-in-time cache
     *
     * To reduce cache size, we use indirect mapping from opcode index to
     * cache object:
     *   cache = co_opcache[co_opcache_map[next_instr - first_instr] - 1]
     */

    // co_opcache_map is indexed by (next_instr - first_instr).
    //  * 0 means there is no cache for this opcode.
    //  * n > 0 means there is cache in co_opcache[n-1].
    unsigned char *co_opcache_map;
    _PyOpcache *co_opcache;
    int co_opcache_flag;  // used to determine when create a cache.
    unsigned char co_opcache_size;  // length of co_opcache.
};

/* Masks for co_flags above */
#define CO_OPTIMIZED    0x0001
#define CO_NEWLOCALS    0x0002
#define CO_VARARGS      0x0004
#define CO_VARKEYWORDS  0x0008
#define CO_NESTED       0x0010
#define CO_GENERATOR    0x0020
/* The CO_NOFREE flag is set if there are no free or cell variables.
   This information is redundant, but it allows a single flag test
   to determine whether there is any extra work to be done when the
   call frame it setup.
*/
#define CO_NOFREE       0x0040

/* The CO_COROUTINE flag is set for coroutine functions (defined with
   ``async def`` keywords) */
#define CO_COROUTINE            0x0080
#define CO_ITERABLE_COROUTINE   0x0100
#define CO_ASYNC_GENERATOR      0x0200

/* bpo-39562: These constant values are changed in Python 3.9
   to prevent collision with compiler flags. CO_FUTURE_ and PyCF_
   constants must be kept unique. PyCF_ constants can use bits from
   0x0100 to 0x10000. CO_FUTURE_ constants use bits starting at 0x20000. */
#define CO_FUTURE_DIVISION      0x20000
#define CO_FUTURE_ABSOLUTE_IMPORT 0x40000 /* do absolute imports by default */
#define CO_FUTURE_WITH_STATEMENT  0x80000
#define CO_FUTURE_PRINT_FUNCTION  0x100000
#define CO_FUTURE_UNICODE_LITERALS 0x200000

#define CO_FUTURE_BARRY_AS_BDFL  0x400000
#define CO_FUTURE_GENERATOR_STOP  0x800000
#define CO_FUTURE_ANNOTATIONS    0x1000000

/* This value is found in the co_cell2arg array when the associated cell
   variable does not correspond to an argument. */
#define CO_CELL_NOT_AN_ARG (-1)

/* This should be defined if a future statement modifies the syntax.
   For example, when a keyword is added.
*/
#define PY_PARSER_REQUIRES_FUTURE_KEYWORD

#define CO_MAXBLOCKS 20 /* Max static block nesting within a function */

PyAPI_DATA(PyTypeObject) PyCode_Type;

#define PyCode_Check(op) Py_IS_TYPE(op, &PyCode_Type)
#define PyCode_GetNumFree(op) (PyTuple_GET_SIZE((op)->co_freevars))

/* Public interface */
PyAPI_FUNC(PyCodeObject *) PyCode_New(
        int, int, int, int, int, PyObject *, PyObject *,
        PyObject *, PyObject *, PyObject *, PyObject *,
        PyObject *, PyObject *, int, PyObject *);

PyAPI_FUNC(PyCodeObject *) PyCode_NewWithPosOnlyArgs(
        int, int, int, int, int, int, PyObject *, PyObject *,
        PyObject *, PyObject *, PyObject *, PyObject *,
        PyObject *, PyObject *, int, PyObject *);
        /* same as struct above */

/* Creates a new empty code object with the specified source location. */
PyAPI_FUNC(PyCodeObject *)
PyCode_NewEmpty(const char *filename, const char *funcname, int firstlineno);

/* Return the line number associated with the specified bytecode index
   in this code object.  If you just need the line number of a frame,
   use PyFrame_GetLineNumber() instead. */
PyAPI_FUNC(int) PyCode_Addr2Line(PyCodeObject *, int);

/* for internal use only */
struct _opaque {
    int computed_line;
    const char *lo_next;
    const char *limit;
};

typedef struct _line_offsets {
    int ar_start;
    int ar_end;
    int ar_line;
    struct _opaque opaque;
} PyCodeAddressRange;

/* Update *bounds to describe the first and one-past-the-last instructions in the
   same line as lasti.  Return the number of that line.
*/
PyAPI_FUNC(int) _PyCode_CheckLineNumber(int lasti, PyCodeAddressRange *bounds);

/* Create a comparable key used to compare constants taking in account the
 * object type. It is used to make sure types are not coerced (e.g., float and
 * complex) _and_ to distinguish 0.0 from -0.0 e.g. on IEEE platforms
 *
 * Return (type(obj), obj, ...): a tuple with variable size (at least 2 items)
 * depending on the type and the value. The type is the first item to not
 * compare bytes and str which can raise a BytesWarning exception. */
PyAPI_FUNC(PyObject*) _PyCode_ConstantKey(PyObject *obj);

PyAPI_FUNC(PyObject*) PyCode_Optimize(PyObject *code, PyObject* consts,
                                      PyObject *names, PyObject *lnotab);


PyAPI_FUNC(int) _PyCode_GetExtra(PyObject *code, Py_ssize_t index,
                                 void **extra);
PyAPI_FUNC(int) _PyCode_SetExtra(PyObject *code, Py_ssize_t index,
                                 void *extra);

/** API for initializing the line number table. */
int _PyCode_InitAddressRange(PyCodeObject* co, PyCodeAddressRange *bounds);

/** Out of process API for initializing the line number table. */
void PyLineTable_InitAddressRange(const char *linetable, Py_ssize_t length, int firstlineno, PyCodeAddressRange *range);

/** API for traversing the line number table. */
int PyLineTable_NextAddressRange(PyCodeAddressRange *range);
int PyLineTable_PreviousAddressRange(PyCodeAddressRange *range);

Name	Size	Permission
abstract.h	14054 bytes	0644
bytearrayobject.h	769 bytes	0644
bytesobject.h	4119 bytes	0644
ceval.h	1468 bytes	0644
code.h	7570 bytes	0644
compile.h	2218 bytes	0644
dictobject.h	3734 bytes	0644
fileobject.h	723 bytes	0644
fileutils.h	4267 bytes	0644
frameobject.h	3152 bytes	0644
import.h	1630 bytes	0644
initconfig.h	7597 bytes	0644
interpreteridobject.h	387 bytes	0644
listobject.h	1243 bytes	0644
methodobject.h	1399 bytes	0644
object.h	19613 bytes	0644
objimpl.h	3356 bytes	0644
odictobject.h	1299 bytes	0644
picklebufobject.h	846 bytes	0644
pyctype.h	1387 bytes	0644
pydebug.h	1093 bytes	0644
pyerrors.h	5476 bytes	0644
pyfpe.h	444 bytes	0644
pylifecycle.h	2095 bytes	0644
pymem.h	3379 bytes	0644
pystate.h	11914 bytes	0644
pythonrun.h	4811 bytes	0644
pytime.h	9196 bytes	0644
sysmodule.h	506 bytes	0644
traceback.h	404 bytes	0644
tupleobject.h	975 bytes	0644
unicodeobject.h	44284 bytes	0644

File Content: code.h

File Content: `code.h`