diff options
| author | nkozlovskiy <[email protected]> | 2023-09-29 12:24:06 +0300 |
|---|---|---|
| committer | nkozlovskiy <[email protected]> | 2023-09-29 12:41:34 +0300 |
| commit | e0e3e1717e3d33762ce61950504f9637a6e669ed (patch) | |
| tree | bca3ff6939b10ed60c3d5c12439963a1146b9711 /contrib/tools/python3/src/Include/cpython/code.h | |
| parent | 38f2c5852db84c7b4d83adfcb009eb61541d1ccd (diff) | |
add ydb deps
Diffstat (limited to 'contrib/tools/python3/src/Include/cpython/code.h')
| -rw-r--r-- | contrib/tools/python3/src/Include/cpython/code.h | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/contrib/tools/python3/src/Include/cpython/code.h b/contrib/tools/python3/src/Include/cpython/code.h new file mode 100644 index 00000000000..7006060cc76 --- /dev/null +++ b/contrib/tools/python3/src/Include/cpython/code.h @@ -0,0 +1,236 @@ +/* Definitions for bytecode */ + +#ifndef Py_LIMITED_API +#ifndef Py_CODE_H +#define Py_CODE_H +#ifdef __cplusplus +extern "C" { +#endif + +/* Each instruction in a code object is a fixed-width value, + * currently 2 bytes: 1-byte opcode + 1-byte oparg. The EXTENDED_ARG + * opcode allows for larger values but the current limit is 3 uses + * of EXTENDED_ARG (see Python/compile.c), for a maximum + * 32-bit value. This aligns with the note in Python/compile.c + * (compiler_addop_i_line) indicating that the max oparg value is + * 2**32 - 1, rather than INT_MAX. + */ + +typedef uint16_t _Py_CODEUNIT; + +#ifdef WORDS_BIGENDIAN +# define _Py_OPCODE(word) ((word) >> 8) +# define _Py_OPARG(word) ((word) & 255) +# define _Py_MAKECODEUNIT(opcode, oparg) (((opcode)<<8)|(oparg)) +#else +# define _Py_OPCODE(word) ((word) & 255) +# define _Py_OPARG(word) ((word) >> 8) +# define _Py_MAKECODEUNIT(opcode, oparg) ((opcode)|((oparg)<<8)) +#endif + +// Use "unsigned char" instead of "uint8_t" here to avoid illegal aliasing: +#define _Py_SET_OPCODE(word, opcode) (((unsigned char *)&(word))[0] = (opcode)) + +// To avoid repeating ourselves in deepfreeze.py, all PyCodeObject members are +// defined in this macro: +#define _PyCode_DEF(SIZE) { \ + PyObject_VAR_HEAD \ + \ + /* Note only the following fields are used in hash and/or comparisons \ + * \ + * - co_name \ + * - co_argcount \ + * - co_posonlyargcount \ + * - co_kwonlyargcount \ + * - co_nlocals \ + * - co_stacksize \ + * - co_flags \ + * - co_firstlineno \ + * - co_consts \ + * - co_names \ + * - co_localsplusnames \ + * 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. \ + */ \ + \ + /* These fields are set with provided values on new code objects. */ \ + \ + /* The hottest fields (in the eval loop) are grouped here at the top. */ \ + PyObject *co_consts; /* list (constants used) */ \ + PyObject *co_names; /* list of strings (names used) */ \ + PyObject *co_exceptiontable; /* Byte string encoding exception handling \ + table */ \ + int co_flags; /* CO_..., see below */ \ + short co_warmup; /* Warmup counter for quickening */ \ + short _co_linearray_entry_size; /* Size of each entry in _co_linearray */ \ + \ + /* The rest are not so impactful on performance. */ \ + int co_argcount; /* #arguments, except *args */ \ + int co_posonlyargcount; /* #positional only arguments */ \ + int co_kwonlyargcount; /* #keyword only arguments */ \ + int co_stacksize; /* #entries needed for evaluation stack */ \ + int co_firstlineno; /* first source line number */ \ + \ + /* redundant values (derived from co_localsplusnames and \ + co_localspluskinds) */ \ + int co_nlocalsplus; /* number of local + cell + free variables \ + */ \ + int co_nlocals; /* number of local variables */ \ + int co_nplaincellvars; /* number of non-arg cell variables */ \ + int co_ncellvars; /* total number of cell variables */ \ + int co_nfreevars; /* number of free variables */ \ + \ + PyObject *co_localsplusnames; /* tuple mapping offsets to names */ \ + PyObject *co_localspluskinds; /* Bytes mapping to local kinds (one byte \ + per variable) */ \ + PyObject *co_filename; /* unicode (where it was loaded from) */ \ + PyObject *co_name; /* unicode (name, for reference) */ \ + PyObject *co_qualname; /* unicode (qualname, for reference) */ \ + PyObject *co_linetable; /* bytes object that holds location info */ \ + PyObject *co_weakreflist; /* to support weakrefs to code objects */ \ + PyObject *_co_code; /* cached co_code object/attribute */ \ + char *_co_linearray; /* array of line offsets */ \ + int _co_firsttraceable; /* index of first traceable instruction */ \ + /* 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; \ + char co_code_adaptive[(SIZE)]; \ +} + +/* Bytecode object */ +struct PyCodeObject _PyCode_DEF(1); + +/* 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_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 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) ((op)->co_nfreevars) +#define _PyCode_CODE(CO) ((_Py_CODEUNIT *)(CO)->co_code_adaptive) +#define _PyCode_NBYTES(CO) (Py_SIZE(CO) * (Py_ssize_t)sizeof(_Py_CODEUNIT)) + +/* Public interface */ +PyAPI_FUNC(PyCodeObject *) PyCode_New( + int, int, int, int, int, PyObject *, PyObject *, + PyObject *, PyObject *, PyObject *, PyObject *, + PyObject *, PyObject *, PyObject *, int, PyObject *, + PyObject *); + +PyAPI_FUNC(PyCodeObject *) PyCode_NewWithPosOnlyArgs( + int, int, int, int, int, int, PyObject *, PyObject *, + PyObject *, PyObject *, PyObject *, PyObject *, + PyObject *, PyObject *, PyObject *, int, PyObject *, + 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); + +PyAPI_FUNC(int) PyCode_Addr2Location(PyCodeObject *, int, int *, int *, int *, int *); + +/* for internal use only */ +struct _opaque { + int computed_line; + const uint8_t *lo_next; + const uint8_t *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); + +/* Equivalent to getattr(code, 'co_code') in Python. + Returns a strong reference to a bytes object. */ +PyAPI_FUNC(PyObject *) PyCode_GetCode(PyCodeObject *code); +/* Equivalent to getattr(code, 'co_varnames') in Python. */ +PyAPI_FUNC(PyObject *) PyCode_GetVarnames(PyCodeObject *code); +/* Equivalent to getattr(code, 'co_cellvars') in Python. */ +PyAPI_FUNC(PyObject *) PyCode_GetCellvars(PyCodeObject *code); +/* Equivalent to getattr(code, 'co_freevars') in Python. */ +PyAPI_FUNC(PyObject *) PyCode_GetFreevars(PyCodeObject *code); + +typedef enum _PyCodeLocationInfoKind { + /* short forms are 0 to 9 */ + PY_CODE_LOCATION_INFO_SHORT0 = 0, + /* one lineforms are 10 to 12 */ + PY_CODE_LOCATION_INFO_ONE_LINE0 = 10, + PY_CODE_LOCATION_INFO_ONE_LINE1 = 11, + PY_CODE_LOCATION_INFO_ONE_LINE2 = 12, + + PY_CODE_LOCATION_INFO_NO_COLUMNS = 13, + PY_CODE_LOCATION_INFO_LONG = 14, + PY_CODE_LOCATION_INFO_NONE = 15 +} _PyCodeLocationInfoKind; + +#ifdef __cplusplus +} +#endif +#endif // !Py_CODE_H +#endif // !Py_LIMITED_API |
