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| 1 | /* Definitions for bytecode */ | ||
| 2 | |||
| 3 | #ifndef Py_CODE_H | ||
| 4 | #define Py_CODE_H | ||
| 5 | #ifdef __cplusplus | ||
| 6 | extern "C" { | ||
| 7 | #endif | ||
| 8 | |||
| 9 | /* Bytecode object */ | ||
| 10 | typedef struct { | ||
| 11 | PyObject_HEAD | ||
| 12 | int co_argcount; /* #arguments, except *args */ | ||
| 13 | int co_nlocals; /* #local variables */ | ||
| 14 | int co_stacksize; /* #entries needed for evaluation stack */ | ||
| 15 | int co_flags; /* CO_..., see below */ | ||
| 16 | PyObject *co_code; /* instruction opcodes */ | ||
| 17 | PyObject *co_consts; /* list (constants used) */ | ||
| 18 | PyObject *co_names; /* list of strings (names used) */ | ||
| 19 | PyObject *co_varnames; /* tuple of strings (local variable names) */ | ||
| 20 | PyObject *co_freevars; /* tuple of strings (free variable names) */ | ||
| 21 | PyObject *co_cellvars; /* tuple of strings (cell variable names) */ | ||
| 22 | /* The rest doesn't count for hash/cmp */ | ||
| 23 | PyObject *co_filename; /* string (where it was loaded from) */ | ||
| 24 | PyObject *co_name; /* string (name, for reference) */ | ||
| 25 | int co_firstlineno; /* first source line number */ | ||
| 26 | PyObject *co_lnotab; /* string (encoding addr<->lineno mapping) */ | ||
| 27 | void *co_zombieframe; /* for optimization only (see frameobject.c) */ | ||
| 28 | } PyCodeObject; | ||
| 29 | |||
| 30 | /* 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 | ||
| 35 | #define CO_NESTED 0x0010 | ||
| 36 | #define CO_GENERATOR 0x0020 | ||
| 37 | /* The CO_NOFREE flag is set if there are no free or cell variables. | ||
| 38 | This information is redundant, but it allows a single flag test | ||
| 39 | to determine whether there is any extra work to be done when the | ||
| 40 | call frame it setup. | ||
| 41 | */ | ||
| 42 | #define CO_NOFREE 0x0040 | ||
| 43 | |||
| 44 | #if 0 | ||
| 45 | /* This is no longer used. Stopped defining in 2.5, do not re-use. */ | ||
| 46 | #define CO_GENERATOR_ALLOWED 0x1000 | ||
| 47 | #endif | ||
| 48 | #define CO_FUTURE_DIVISION 0x2000 | ||
| 49 | #define CO_FUTURE_ABSOLUTE_IMPORT 0x4000 /* do absolute imports by default */ | ||
| 50 | #define CO_FUTURE_WITH_STATEMENT 0x8000 | ||
| 51 | |||
| 52 | /* This should be defined if a future statement modifies the syntax. | ||
| 53 | For example, when a keyword is added. | ||
| 54 | */ | ||
| 55 | #define PY_PARSER_REQUIRES_FUTURE_KEYWORD | ||
| 56 | |||
| 57 | #define CO_MAXBLOCKS 20 /* Max static block nesting within a function */ | ||
| 58 | |||
| 59 | PyAPI_DATA(PyTypeObject) PyCode_Type; | ||
| 60 | |||
| 61 | #define PyCode_Check(op) ((op)->ob_type == &PyCode_Type) | ||
| 62 | #define PyCode_GetNumFree(op) (PyTuple_GET_SIZE((op)->co_freevars)) | ||
| 63 | |||
| 64 | /* Public interface */ | ||
| 65 | PyAPI_FUNC(PyCodeObject *) PyCode_New( | ||
| 66 | int, int, int, int, PyObject *, PyObject *, PyObject *, PyObject *, | ||
| 67 | PyObject *, PyObject *, PyObject *, PyObject *, int, PyObject *); | ||
| 68 | /* same as struct above */ | ||
| 69 | PyAPI_FUNC(int) PyCode_Addr2Line(PyCodeObject *, int); | ||
| 70 | |||
| 71 | /* for internal use only */ | ||
| 72 | #define _PyCode_GETCODEPTR(co, pp) \ | ||
| 73 | ((*(co)->co_code->ob_type->tp_as_buffer->bf_getreadbuffer) \ | ||
| 74 | ((co)->co_code, 0, (void **)(pp))) | ||
| 75 | |||
| 76 | typedef struct _addr_pair { | ||
| 77 | int ap_lower; | ||
| 78 | int ap_upper; | ||
| 79 | } PyAddrPair; | ||
| 80 | |||
| 81 | /* Check whether lasti (an instruction offset) falls outside bounds | ||
| 82 | and whether it is a line number that should be traced. Returns | ||
| 83 | a line number if it should be traced or -1 if the line should not. | ||
| 84 | |||
| 85 | If lasti is not within bounds, updates bounds. | ||
| 86 | */ | ||
| 87 | |||
| 88 | PyAPI_FUNC(int) PyCode_CheckLineNumber(PyCodeObject* co, | ||
| 89 | int lasti, PyAddrPair *bounds); | ||
| 90 | |||
| 91 | #ifdef __cplusplus | ||
| 92 | } | ||
| 93 | #endif | ||
| 94 | #endif /* !Py_CODE_H */ | ||