diff options
Diffstat (limited to 'src/if_python.c')
| -rw-r--r-- | src/if_python.c | 303 |
1 files changed, 140 insertions, 163 deletions
diff --git a/src/if_python.c b/src/if_python.c index 9f9c257ee..7b2207085 100644 --- a/src/if_python.c +++ b/src/if_python.c @@ -21,16 +21,15 @@ #include <limits.h> -/* uncomment this if used with the debug version of python. - * Checked on 2.7.4. */ -/* #define Py_DEBUG */ -/* Note: most of time you can add -DPy_DEBUG to CFLAGS in place of uncommenting - */ -/* uncomment this if used with the debug version of python, but without its - * allocator */ -/* #define Py_DEBUG_NO_PYMALLOC */ - -/* Python.h defines _POSIX_THREADS itself (if needed) */ +// uncomment this if used with the debug version of python. +// Checked on 2.7.4. +// #define Py_DEBUG +// Note: most of time you can add -DPy_DEBUG to CFLAGS in place of uncommenting +// uncomment this if used with the debug version of python, but without its +// allocator +// #define Py_DEBUG_NO_PYMALLOC + +// Python.h defines _POSIX_THREADS itself (if needed) #ifdef _POSIX_THREADS # undef _POSIX_THREADS #endif @@ -53,13 +52,13 @@ # undef HAVE_PUTENV #endif #ifdef HAVE_STDARG_H -# undef HAVE_STDARG_H /* Python's config.h defines it as well. */ +# undef HAVE_STDARG_H // Python's config.h defines it as well. #endif #ifdef _POSIX_C_SOURCE -# undef _POSIX_C_SOURCE /* pyconfig.h defines it as well. */ +# undef _POSIX_C_SOURCE // pyconfig.h defines it as well. #endif #ifdef _XOPEN_SOURCE -# undef _XOPEN_SOURCE /* pyconfig.h defines it as well. */ +# undef _XOPEN_SOURCE // pyconfig.h defines it as well. #endif #define PY_SSIZE_T_CLEAN @@ -70,8 +69,8 @@ # undef PY_SSIZE_T_CLEAN #endif -#undef main /* Defined in python.h - aargh */ -#undef HAVE_FCNTL_H /* Clash with os_win32.h */ +#undef main // Defined in python.h - aargh +#undef HAVE_FCNTL_H // Clash with os_win32.h // Perhaps leave this out for Python 2.6, which supports bytes? #define PyBytes_FromString PyString_FromString @@ -80,7 +79,7 @@ #define PyBytes_FromStringAndSize PyString_FromStringAndSize #if !defined(FEAT_PYTHON) && defined(PROTO) -/* Use this to be able to generate prototypes without python being used. */ +// Use this to be able to generate prototypes without python being used. # define PyObject Py_ssize_t # define PyThreadState Py_ssize_t # define PyTypeObject Py_ssize_t @@ -112,19 +111,19 @@ struct PyMethodDef { Py_ssize_t a; }; #endif #define Py_bytes_fmt "s" -/* Parser flags */ +// Parser flags #define single_input 256 #define file_input 257 #define eval_input 258 #if defined(PY_VERSION_HEX) && PY_VERSION_HEX >= 0x020300F0 - /* Python 2.3: can invoke ":python" recursively. */ + // Python 2.3: can invoke ":python" recursively. # define PY_CAN_RECURSE #endif #if defined(DYNAMIC_PYTHON) || defined(PROTO) # ifndef DYNAMIC_PYTHON -# define HINSTANCE long_u /* for generating prototypes */ +# define HINSTANCE long_u // for generating prototypes # endif # ifndef MSWIN @@ -144,8 +143,8 @@ struct PyMethodDef { Py_ssize_t a; }; # define symbol_from_dll GetProcAddress # endif -/* This makes if_python.c compile without warnings against Python 2.5 - * on Win32 and Win64. */ +// This makes if_python.c compile without warnings against Python 2.5 +// on Win32 and Win64. # undef PyRun_SimpleString # undef PyRun_String # undef PyArg_Parse @@ -456,9 +455,9 @@ static void* (*dll_PyCObject_AsVoidPtr)(PyObject *); static int* dll_Py_NoSiteFlag; # endif -static HINSTANCE hinstPython = 0; /* Instance of python.dll */ +static HINSTANCE hinstPython = 0; // Instance of python.dll -/* Imported exception objects */ +// Imported exception objects static PyObject *imp_PyExc_AttributeError; static PyObject *imp_PyExc_IndexError; static PyObject *imp_PyExc_KeyError; @@ -681,9 +680,9 @@ python_runtime_link_init(char *libname, int verbose) (PYTHON_PROC*)&py_PyUnicode_AsEncodedString; # if !(defined(PY_NO_RTLD_GLOBAL) && defined(PY3_NO_RTLD_GLOBAL)) && defined(UNIX) && defined(FEAT_PYTHON3) - /* Can't have Python and Python3 loaded at the same time. - * It cause a crash, because RTLD_GLOBAL is needed for - * standard C extension libraries of one or both python versions. */ + // Can't have Python and Python3 loaded at the same time. + // It cause a crash, because RTLD_GLOBAL is needed for + // standard C extension libraries of one or both python versions. if (python3_loaded()) { if (verbose) @@ -715,8 +714,8 @@ python_runtime_link_init(char *libname, int verbose) } } - /* Load unicode functions separately as only the ucs2 or the ucs4 functions - * will be present in the library. */ + // Load unicode functions separately as only the ucs2 or the ucs4 functions + // will be present in the library. *ucs_as_encoded_string = symbol_from_dll(hinstPython, "PyUnicodeUCS2_AsEncodedString"); if (*ucs_as_encoded_string == NULL) @@ -775,7 +774,7 @@ get_exceptions(void) Py_XINCREF(imp_PyExc_OverflowError); Py_XDECREF(exmod); } -#endif /* DYNAMIC_PYTHON */ +#endif // DYNAMIC_PYTHON static int initialised = 0; #define PYINITIALISED initialised @@ -830,18 +829,16 @@ typedef PySliceObject PySliceObject_T; #include "if_py_both.h" -/****************************************************** - * Internal function prototypes. - */ +/////////////////////////////////////////////////////// +// Internal function prototypes. static int PythonMod_Init(void); -/****************************************************** - * 1. Python interpreter main program. - */ +/////////////////////////////////////////////////////// +// 1. Python interpreter main program. -#if PYTHON_API_VERSION < 1007 /* Python 1.4 */ +#if PYTHON_API_VERSION < 1007 // Python 1.4 typedef PyObject PyThreadState; #endif @@ -875,7 +872,7 @@ python_end(void) { static int recurse = 0; - /* If a crash occurs while doing this, don't try again. */ + // If a crash occurs while doing this, don't try again. if (recurse != 0) return; @@ -888,7 +885,7 @@ python_end(void) # ifdef PY_CAN_RECURSE PyGILState_Ensure(); # else - Python_RestoreThread(); /* enter python */ + Python_RestoreThread(); // enter python # endif Py_Finalize(); } @@ -899,7 +896,7 @@ python_end(void) # ifdef PY_CAN_RECURSE PyGILState_Ensure(); # else - Python_RestoreThread(); /* enter python */ + Python_RestoreThread(); // enter python # endif Py_Finalize(); } @@ -937,7 +934,7 @@ Python_Init(void) if (*p_pyhome != NUL) { - /* The string must not change later, make a copy in static memory. */ + // The string must not change later, make a copy in static memory. py_home_buf = (char *)vim_strsave(p_pyhome); if (py_home_buf != NULL) Py_SetPythonHome(py_home_buf); @@ -950,15 +947,15 @@ Python_Init(void) init_structs(); #if defined(PY_VERSION_HEX) && PY_VERSION_HEX >= 0x02070000 - /* Disable implicit 'import site', because it may cause Vim to exit - * when it can't be found. */ + // Disable implicit 'import site', because it may cause Vim to exit + // when it can't be found. Py_NoSiteFlag++; #endif Py_Initialize(); #if defined(PY_VERSION_HEX) && PY_VERSION_HEX >= 0x02070000 - /* 'import site' explicitly. */ + // 'import site' explicitly. site = PyImport_ImportModule("site"); if (site == NULL) { @@ -968,10 +965,10 @@ Python_Init(void) Py_DECREF(site); #endif - /* Initialise threads, and below save the state using - * PyEval_SaveThread. Without the call to PyEval_SaveThread, thread - * specific state (such as the system trace hook), will be lost - * between invocations of Python code. */ + // Initialise threads, and below save the state using + // PyEval_SaveThread. Without the call to PyEval_SaveThread, thread + // specific state (such as the system trace hook), will be lost + // between invocations of Python code. PyEval_InitThreads(); #ifdef DYNAMIC_PYTHON get_exceptions(); @@ -985,19 +982,18 @@ Python_Init(void) globals = PyModule_GetDict(PyImport_AddModule("__main__")); - /* Remove the element from sys.path that was added because of our - * argv[0] value in PythonMod_Init(). Previously we used an empty - * string, but depending on the OS we then get an empty entry or - * the current directory in sys.path. */ + // Remove the element from sys.path that was added because of our + // argv[0] value in PythonMod_Init(). Previously we used an empty + // string, but depending on the OS we then get an empty entry or + // the current directory in sys.path. PyRun_SimpleString("import sys; sys.path = filter(lambda x: x != '/must>not&exist', sys.path)"); - /* lock is created and acquired in PyEval_InitThreads() and thread - * state is created in Py_Initialize() - * there _PyGILState_NoteThreadState() also sets gilcounter to 1 - * (python must have threads enabled!) - * so the following does both: unlock GIL and save thread state in TLS - * without deleting thread state - */ + // lock is created and acquired in PyEval_InitThreads() and thread + // state is created in Py_Initialize() + // there _PyGILState_NoteThreadState() also sets gilcounter to 1 + // (python must have threads enabled!) + // so the following does both: unlock GIL and save thread state in TLS + // without deleting thread state #ifndef PY_CAN_RECURSE saved_python_thread = #endif @@ -1009,11 +1005,10 @@ Python_Init(void) return 0; fail: - /* We call PythonIO_Flush() here to print any Python errors. - * This is OK, as it is possible to call this function even - * if PythonIO_Init_io() has not completed successfully (it will - * not do anything in this case). - */ + // We call PythonIO_Flush() here to print any Python errors. + // This is OK, as it is possible to call this function even + // if PythonIO_Init_io() has not completed successfully (it will + // not do anything in this case). PythonIO_Flush(); return -1; } @@ -1050,16 +1045,16 @@ DoPyCommand(const char *cmd, rangeinitializer init_range, runner run, void *arg) init_range(arg); - Python_Release_Vim(); /* leave vim */ + Python_Release_Vim(); // leave Vim #if defined(HAVE_LOCALE_H) || defined(X_LOCALE) - /* Python only works properly when the LC_NUMERIC locale is "C". */ + // Python only works properly when the LC_NUMERIC locale is "C". saved_locale = setlocale(LC_NUMERIC, NULL); if (saved_locale == NULL || STRCMP(saved_locale, "C") == 0) saved_locale = NULL; else { - /* Need to make a copy, value may change when setting new locale. */ + // Need to make a copy, value may change when setting new locale. saved_locale = (char *) PY_STRSAVE(saved_locale); (void)setlocale(LC_NUMERIC, "C"); } @@ -1068,7 +1063,7 @@ DoPyCommand(const char *cmd, rangeinitializer init_range, runner run, void *arg) #ifdef PY_CAN_RECURSE pygilstate = PyGILState_Ensure(); #else - Python_RestoreThread(); /* enter python */ + Python_RestoreThread(); // enter python #endif run((char *) cmd, arg @@ -1080,7 +1075,7 @@ DoPyCommand(const char *cmd, rangeinitializer init_range, runner run, void *arg) #ifdef PY_CAN_RECURSE PyGILState_Release(pygilstate); #else - Python_SaveThread(); /* leave python */ + Python_SaveThread(); // leave python #endif #if defined(HAVE_LOCALE_H) || defined(X_LOCALE) @@ -1091,7 +1086,7 @@ DoPyCommand(const char *cmd, rangeinitializer init_range, runner run, void *arg) } #endif - Python_Lock_Vim(); /* enter vim */ + Python_Lock_Vim(); // enter vim PythonIO_Flush(); theend: @@ -1138,17 +1133,16 @@ ex_pyfile(exarg_T *eap) if (p_pyx == 0) p_pyx = 2; - /* Have to do it like this. PyRun_SimpleFile requires you to pass a - * stdio file pointer, but Vim and the Python DLL are compiled with - * different options under Windows, meaning that stdio pointers aren't - * compatible between the two. Yuk. - * - * Put the string "execfile('file')" into buffer. But, we need to - * escape any backslashes or single quotes in the file name, so that - * Python won't mangle the file name. - */ + // Have to do it like this. PyRun_SimpleFile requires you to pass a + // stdio file pointer, but Vim and the Python DLL are compiled with + // different options under Windows, meaning that stdio pointers aren't + // compatible between the two. Yuk. + // + // Put the string "execfile('file')" into buffer. But, we need to + // escape any backslashes or single quotes in the file name, so that + // Python won't mangle the file name. strcpy(buffer, "execfile('"); - p = buffer + 10; /* size of "execfile('" */ + p = buffer + 10; // size of "execfile('" while (*file && p < buffer + (BUFFER_SIZE - 3)) { @@ -1157,16 +1151,16 @@ ex_pyfile(exarg_T *eap) *p++ = *file++; } - /* If we didn't finish the file name, we hit a buffer overflow */ + // If we didn't finish the file name, we hit a buffer overflow if (*file != '\0') return; - /* Put in the terminating "')" and a null */ + // Put in the terminating "')" and a null *p++ = '\''; *p++ = ')'; *p++ = '\0'; - /* Execute the file */ + // Execute the file DoPyCommand(buffer, (rangeinitializer) init_range_cmd, (runner) run_cmd, @@ -1185,12 +1179,10 @@ ex_pydo(exarg_T *eap) (void *)eap); } -/****************************************************** - * 2. Python output stream: writes output via [e]msg(). - */ +/////////////////////////////////////////////////////// +// 2. Python output stream: writes output via [e]msg(). -/* Implementation functions - */ +// Implementation functions static PyObject * OutputGetattr(PyObject *self, char *name) @@ -1206,53 +1198,47 @@ OutputGetattr(PyObject *self, char *name) return Py_FindMethod(OutputMethods, self, name); } -/****************************************************** - * 3. Implementation of the Vim module for Python - */ +/////////////////////////////////////////////////////// +// 3. Implementation of the Vim module for Python -/* Window type - Implementation functions - * -------------------------------------- - */ +// Window type - Implementation functions +// -------------------------------------- #define WindowType_Check(obj) ((obj)->ob_type == &WindowType) -/* Buffer type - Implementation functions - * -------------------------------------- - */ +// Buffer type - Implementation functions +// -------------------------------------- #define BufferType_Check(obj) ((obj)->ob_type == &BufferType) static PyInt BufferAssItem(PyObject *, PyInt, PyObject *); static PyInt BufferAssSlice(PyObject *, PyInt, PyInt, PyObject *); -/* Line range type - Implementation functions - * -------------------------------------- - */ +// Line range type - Implementation functions +// -------------------------------------- #define RangeType_Check(obj) ((obj)->ob_type == &RangeType) static PyInt RangeAssItem(PyObject *, PyInt, PyObject *); static PyInt RangeAssSlice(PyObject *, PyInt, PyInt, PyObject *); -/* Current objects type - Implementation functions - * ----------------------------------------------- - */ +// Current objects type - Implementation functions +// ----------------------------------------------- static PySequenceMethods BufferAsSeq = { - (PyInquiry) BufferLength, /* sq_length, len(x) */ - (binaryfunc) 0, /* BufferConcat, sq_concat, x+y */ - (PyIntArgFunc) 0, /* BufferRepeat, sq_repeat, x*n */ - (PyIntArgFunc) BufferItem, /* sq_item, x[i] */ - (PyIntIntArgFunc) BufferSlice, /* sq_slice, x[i:j] */ - (PyIntObjArgProc) BufferAssItem, /* sq_ass_item, x[i]=v */ - (PyIntIntObjArgProc) BufferAssSlice, /* sq_ass_slice, x[i:j]=v */ + (PyInquiry) BufferLength, // sq_length, len(x) + (binaryfunc) 0, // BufferConcat, sq_concat, x+y + (PyIntArgFunc) 0, // BufferRepeat, sq_repeat, x*n + (PyIntArgFunc) BufferItem, // sq_item, x[i] + (PyIntIntArgFunc) BufferSlice, // sq_slice, x[i:j] + (PyIntObjArgProc) BufferAssItem, // sq_ass_item, x[i]=v + (PyIntIntObjArgProc) BufferAssSlice, // sq_ass_slice, x[i:j]=v (objobjproc) 0, (binaryfunc) 0, 0, }; -/* Buffer object - Implementation - */ +// Buffer object - Implementation static PyObject * BufferGetattr(PyObject *self, char *name) @@ -1272,7 +1258,7 @@ BufferGetattr(PyObject *self, char *name) return Py_FindMethod(BufferMethods, self, name); } -/******************/ +////////////////// static PyInt BufferAssItem(PyObject *self, PyInt n, PyObject *val) @@ -1287,13 +1273,13 @@ BufferAssSlice(PyObject *self, PyInt lo, PyInt hi, PyObject *val) } static PySequenceMethods RangeAsSeq = { - (PyInquiry) RangeLength, /* sq_length, len(x) */ - (binaryfunc) 0, /* RangeConcat, */ /* sq_concat, x+y */ - (PyIntArgFunc) 0, /* RangeRepeat, */ /* sq_repeat, x*n */ - (PyIntArgFunc) RangeItem, /* sq_item, x[i] */ - (PyIntIntArgFunc) RangeSlice, /* sq_slice, x[i:j] */ - (PyIntObjArgProc) RangeAssItem, /* sq_ass_item, x[i]=v */ - (PyIntIntObjArgProc) RangeAssSlice, /* sq_ass_slice, x[i:j]=v */ + (PyInquiry) RangeLength, // sq_length, len(x) + (binaryfunc) 0, /* RangeConcat, */ // sq_concat, x+y + (PyIntArgFunc) 0, /* RangeRepeat, */ // sq_repeat, x*n + (PyIntArgFunc) RangeItem, // sq_item, x[i] + (PyIntIntArgFunc) RangeSlice, // sq_slice, x[i:j] + (PyIntObjArgProc) RangeAssItem, // sq_ass_item, x[i]=v + (PyIntIntObjArgProc) RangeAssSlice, // sq_ass_slice, x[i:j]=v (objobjproc) 0, #if PY_MAJOR_VERSION >= 2 (binaryfunc) 0, @@ -1301,8 +1287,7 @@ static PySequenceMethods RangeAsSeq = { #endif }; -/* Line range object - Implementation - */ +// Line range object - Implementation static PyObject * RangeGetattr(PyObject *self, char *name) @@ -1317,7 +1302,7 @@ RangeGetattr(PyObject *self, char *name) return Py_FindMethod(RangeMethods, self, name); } -/****************/ +//////////////// static PyInt RangeAssItem(PyObject *self, PyInt n, PyObject *val) @@ -1337,8 +1322,7 @@ RangeAssSlice(PyObject *self, PyInt lo, PyInt hi, PyObject *val) &((RangeObject *)(self))->end); } -/* TabPage object - Implementation - */ +// TabPage object - Implementation static PyObject * TabPageGetattr(PyObject *self, char *name) @@ -1358,8 +1342,7 @@ TabPageGetattr(PyObject *self, char *name) return Py_FindMethod(TabPageMethods, self, name); } -/* Window object - Implementation - */ +// Window object - Implementation static PyObject * WindowGetattr(PyObject *self, char *name) @@ -1379,17 +1362,16 @@ WindowGetattr(PyObject *self, char *name) return Py_FindMethod(WindowMethods, self, name); } -/* Tab page list object - Definitions - */ +// Tab page list object - Definitions static PySequenceMethods TabListAsSeq = { - (PyInquiry) TabListLength, /* sq_length, len(x) */ - (binaryfunc) 0, /* sq_concat, x+y */ - (PyIntArgFunc) 0, /* sq_repeat, x*n */ - (PyIntArgFunc) TabListItem, /* sq_item, x[i] */ - (PyIntIntArgFunc) 0, /* sq_slice, x[i:j] */ - (PyIntObjArgProc) 0, /* sq_ass_item, x[i]=v */ - (PyIntIntObjArgProc) 0, /* sq_ass_slice, x[i:j]=v */ + (PyInquiry) TabListLength, // sq_length, len(x) + (binaryfunc) 0, // sq_concat, x+y + (PyIntArgFunc) 0, // sq_repeat, x*n + (PyIntArgFunc) TabListItem, // sq_item, x[i] + (PyIntIntArgFunc) 0, // sq_slice, x[i:j] + (PyIntObjArgProc) 0, // sq_ass_item, x[i]=v + (PyIntIntObjArgProc) 0, // sq_ass_slice, x[i:j]=v (objobjproc) 0, #if PY_MAJOR_VERSION >= 2 (binaryfunc) 0, @@ -1397,17 +1379,16 @@ static PySequenceMethods TabListAsSeq = { #endif }; -/* Window list object - Definitions - */ +// Window list object - Definitions static PySequenceMethods WinListAsSeq = { - (PyInquiry) WinListLength, /* sq_length, len(x) */ - (binaryfunc) 0, /* sq_concat, x+y */ - (PyIntArgFunc) 0, /* sq_repeat, x*n */ - (PyIntArgFunc) WinListItem, /* sq_item, x[i] */ - (PyIntIntArgFunc) 0, /* sq_slice, x[i:j] */ - (PyIntObjArgProc) 0, /* sq_ass_item, x[i]=v */ - (PyIntIntObjArgProc) 0, /* sq_ass_slice, x[i:j]=v */ + (PyInquiry) WinListLength, // sq_length, len(x) + (binaryfunc) 0, // sq_concat, x+y + (PyIntArgFunc) 0, // sq_repeat, x*n + (PyIntArgFunc) WinListItem, // sq_item, x[i] + (PyIntIntArgFunc) 0, // sq_slice, x[i:j] + (PyIntObjArgProc) 0, // sq_ass_item, x[i]=v + (PyIntIntObjArgProc) 0, // sq_ass_slice, x[i:j]=v (objobjproc) 0, #if PY_MAJOR_VERSION >= 2 (binaryfunc) 0, @@ -1415,8 +1396,7 @@ static PySequenceMethods WinListAsSeq = { #endif }; -/* External interface - */ +// External interface void python_buffer_free(buf_T *buf) @@ -1454,13 +1434,13 @@ python_tabpage_free(tabpage_T *tab) static int PythonMod_Init(void) { - /* The special value is removed from sys.path in Python_Init(). */ + // The special value is removed from sys.path in Python_Init(). static char *(argv[2]) = {"/must>not&exist/foo", NULL}; if (init_types()) return -1; - /* Set sys.argv[] to avoid a crash in warn(). */ + // Set sys.argv[] to avoid a crash in warn(). PySys_SetArgv(1, argv); vim_module = Py_InitModule4("vim", VimMethods, (char *)NULL, @@ -1475,15 +1455,13 @@ PythonMod_Init(void) return 0; } -/************************************************************************* - * 4. Utility functions for handling the interface between Vim and Python. - */ +////////////////////////////////////////////////////////////////////////// +// 4. Utility functions for handling the interface between Vim and Python. -/* Convert a Vim line into a Python string. - * All internal newlines are replaced by null characters. - * - * On errors, the Python exception data is set, and NULL is returned. - */ +// Convert a Vim line into a Python string. +// All internal newlines are replaced by null characters. +// +// On errors, the Python exception data is set, and NULL is returned. static PyObject * LineToString(const char *str) { @@ -1491,10 +1469,9 @@ LineToString(const char *str) PyInt len = strlen(str); char *p; - /* Allocate an Python string object, with uninitialised contents. We - * must do it this way, so that we can modify the string in place - * later. See the Python source, Objects/stringobject.c for details. - */ + // Allocate an Python string object, with uninitialised contents. We + // must do it this way, so that we can modify the string in place + // later. See the Python source, Objects/stringobject.c for details. result = PyString_FromStringAndSize(NULL, len); if (result == NULL) return NULL; @@ -1568,8 +1545,8 @@ do_pyeval(char_u *str, typval_T *rettv) } } -/* Don't generate a prototype for the next function, it generates an error on - * newer Python versions. */ +// Don't generate a prototype for the next function, it generates an error on +// newer Python versions. #if PYTHON_API_VERSION < 1007 /* Python 1.4 */ && !defined(PROTO) char * @@ -1577,7 +1554,7 @@ Py_GetProgramName(void) { return "vim"; } -#endif /* Python 1.4 */ +#endif // Python 1.4 int set_ref_in_python(int copyID) |