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Guido van Rossumf70e43a1991-02-19 12:39:46 +00001
Guido van Rossum884afd61995-07-18 14:21:06 +00002/* Definitions for bytecode */
Guido van Rossum3f5da241990-12-20 15:06:42 +00003
Fred Drakeea9cb5a2000-07-09 00:20:36 +00004#ifndef Py_COMPILE_H
5#define Py_COMPILE_H
6#ifdef __cplusplus
7extern "C" {
8#endif
9
Guido van Rossum884afd61995-07-18 14:21:06 +000010/* Bytecode object */
Guido van Rossum3f5da241990-12-20 15:06:42 +000011typedef struct {
Fred Drakeea9cb5a2000-07-09 00:20:36 +000012 PyObject_HEAD
13 int co_argcount; /* #arguments, except *args */
14 int co_nlocals; /* #local variables */
15 int co_stacksize; /* #entries needed for evaluation stack */
16 int co_flags; /* CO_..., see below */
17 PyObject *co_code; /* instruction opcodes */
18 PyObject *co_consts; /* list (constants used) */
19 PyObject *co_names; /* list of strings (names used) */
20 PyObject *co_varnames; /* tuple of strings (local variable names) */
Jeremy Hylton64949cb2001-01-25 20:06:59 +000021 PyObject *co_freevars; /* tuple of strings (free variable names) */
22 PyObject *co_cellvars; /* tuple of strings (cell variable names) */
Fred Drakeea9cb5a2000-07-09 00:20:36 +000023 /* The rest doesn't count for hash/cmp */
24 PyObject *co_filename; /* string (where it was loaded from) */
25 PyObject *co_name; /* string (name, for reference) */
26 int co_firstlineno; /* first source line number */
27 PyObject *co_lnotab; /* string (encoding addr<->lineno mapping) */
Guido van Rossumcaa63801995-01-12 11:45:45 +000028} PyCodeObject;
Guido van Rossum3f5da241990-12-20 15:06:42 +000029
Guido van Rossum884afd61995-07-18 14:21:06 +000030/* Masks for co_flags above */
31#define CO_OPTIMIZED 0x0001
32#define CO_NEWLOCALS 0x0002
33#define CO_VARARGS 0x0004
34#define CO_VARKEYWORDS 0x0008
Jeremy Hylton061d1062001-03-22 02:32:48 +000035#define CO_NESTED 0x0010
Tim Peters5ca576e2001-06-18 22:08:13 +000036#define CO_GENERATOR 0x0020
Guido van Rossum884afd61995-07-18 14:21:06 +000037
Guido van Rossum051ab121995-02-27 10:17:52 +000038extern DL_IMPORT(PyTypeObject) PyCode_Type;
Guido van Rossum3f5da241990-12-20 15:06:42 +000039
Guido van Rossumcaa63801995-01-12 11:45:45 +000040#define PyCode_Check(op) ((op)->ob_type == &PyCode_Type)
Guido van Rossum3f5da241990-12-20 15:06:42 +000041
Guido van Rossum3f6e4081997-01-17 20:59:26 +000042#define CO_MAXBLOCKS 20 /* Max static block nesting within a function */
Guido van Rossum3f5da241990-12-20 15:06:42 +000043
44/* Public interface */
Guido van Rossume543a941991-04-03 19:00:55 +000045struct _node; /* Declare the existence of this type */
Fred Drakeea9cb5a2000-07-09 00:20:36 +000046DL_IMPORT(PyCodeObject *) PyNode_Compile(struct _node *, char *);
47DL_IMPORT(PyCodeObject *) PyCode_New(
Guido van Rossum3f6e4081997-01-17 20:59:26 +000048 int, int, int, int, PyObject *, PyObject *, PyObject *, PyObject *,
Jeremy Hylton64949cb2001-01-25 20:06:59 +000049 PyObject *, PyObject *, PyObject *, PyObject *, int, PyObject *);
50 /* same as struct above */
Fred Drakeea9cb5a2000-07-09 00:20:36 +000051DL_IMPORT(int) PyCode_Addr2Line(PyCodeObject *, int);
Guido van Rossuma3309961993-07-28 09:05:47 +000052
Jeremy Hylton4db62b12001-02-27 19:07:02 +000053/* Future feature support */
54
55typedef struct {
Jeremy Hylton39e2f3f2001-02-28 01:58:08 +000056 int ff_found_docstring;
Jeremy Hylton4db62b12001-02-27 19:07:02 +000057 int ff_last_lineno;
Jeremy Hylton4db62b12001-02-27 19:07:02 +000058 int ff_nested_scopes;
59} PyFutureFeatures;
60
61DL_IMPORT(PyFutureFeatures *) PyNode_Future(struct _node *, char *);
Jeremy Hylton9f324e92001-03-01 22:59:14 +000062DL_IMPORT(PyCodeObject *) PyNode_CompileFlags(struct _node *, char *,
63 PyCompilerFlags *);
Jeremy Hylton4db62b12001-02-27 19:07:02 +000064
65#define NESTED_SCOPES_DEFAULT 0
66#define FUTURE_NESTED_SCOPES "nested_scopes"
67
Guido van Rossumd076c731998-10-07 19:42:25 +000068/* for internal use only */
69#define _PyCode_GETCODEPTR(co, pp) \
70 ((*(co)->co_code->ob_type->tp_as_buffer->bf_getreadbuffer) \
71 ((co)->co_code, 0, (void **)(pp)))
72
Guido van Rossuma3309961993-07-28 09:05:47 +000073#ifdef __cplusplus
74}
75#endif
76#endif /* !Py_COMPILE_H */