| /* Definitions for bytecode */ |
| |
| #ifndef Py_LIMITED_API |
| #ifndef Py_CODE_H |
| #define Py_CODE_H |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* Bytecode object */ |
| typedef struct { |
| PyObject_HEAD |
| int co_argcount; /* #arguments, except *args */ |
| 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) and co_firstlineno (used only in |
| comparisons). 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. |
| */ |
| unsigned char *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_lnotab; /* 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.__icc_nan |
| Type is a void* to keep the format private in codeobject.c to force |
| people to go through the proper APIs. */ |
| void *co_extra; |
| } PyCodeObject; |
| |
| /* 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 |
| |
| /* These are no longer used. */ |
| #if 0 |
| #define CO_GENERATOR_ALLOWED 0x1000 |
| #endif |
| #define CO_FUTURE_DIVISION 0x2000 |
| #define CO_FUTURE_ABSOLUTE_IMPORT 0x4000 /* do absolute imports by default */ |
| #define CO_FUTURE_WITH_STATEMENT 0x8000 |
| #define CO_FUTURE_PRINT_FUNCTION 0x10000 |
| #define CO_FUTURE_UNICODE_LITERALS 0x20000 |
| |
| #define CO_FUTURE_BARRY_AS_BDFL 0x40000 |
| #define CO_FUTURE_GENERATOR_STOP 0x80000 |
| |
| /* This value is found in the co_cell2arg array when the associated cell |
| variable does not correspond to an argument. The maximum number of |
| arguments is 255 (indexed up to 254), so 255 work as a special flag.*/ |
| #define CO_CELL_NOT_AN_ARG 255 |
| |
| /* 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_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 *); |
| /* 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 */ |
| typedef struct _addr_pair { |
| int ap_lower; |
| int ap_upper; |
| } PyAddrPair; |
| |
| #ifndef Py_LIMITED_API |
| /* 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(PyCodeObject* co, |
| int lasti, PyAddrPair *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); |
| #endif |
| |
| PyAPI_FUNC(PyObject*) PyCode_Optimize(PyObject *code, PyObject* consts, |
| PyObject *names, PyObject *lnotab); |
| |
| |
| #ifndef Py_LIMITED_API |
| 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); |
| #endif |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| #endif /* !Py_CODE_H */ |
| #endif /* Py_LIMITED_API */ |