/* ----------------------------------------------------------------------------- * See the LICENSE file for information on copyright, usage and redistribution * of SWIG, and the README file for authors - http://www.swig.org/release.html. * * python.cxx * * Python language module for SWIG. * ----------------------------------------------------------------------------- */ char cvsroot_python_cxx[] = "$Id: python.cxx 11518 2009-08-08 22:56:10Z wsfulton $"; #include "swigmod.h" #include "cparse.h" static int treduce = SWIG_cparse_template_reduce(0); #include #define PYSHADOW_MEMBER 0x2 static String *const_code = 0; static String *module = 0; static String *package = 0; static String *mainmodule = 0; static String *interface = 0; static String *global_name = 0; static int shadow = 1; static int use_kw = 0; static int director_method_index = 0; static File *f_begin = 0; static File *f_runtime = 0; static File *f_runtime_h = 0; static File *f_header = 0; static File *f_wrappers = 0; static File *f_directors = 0; static File *f_directors_h = 0; static File *f_init = 0; static File *f_shadow_py = 0; static String *f_shadow = 0; static String *f_shadow_imports = 0; static String *f_shadow_stubs = 0; static String *methods; static String *class_name; static String *shadow_indent = 0; static int in_class = 0; static int classic = 0; static int modern = 0; static int new_repr = 1; static int no_header_file = 0; static int py3 = 0; /* C++ Support + Shadow Classes */ static int have_constructor; static int have_repr; static String *real_classname; /* Thread Support */ static int threads = 0; static int nothreads = 0; static int classptr = 0; /* Other options */ static int shadowimport = 1; static int buildnone = 0; static int nobuildnone = 0; static int safecstrings = 0; static int dirvtable = 0; static int proxydel = 1; static int fastunpack = 0; static int fastproxy = 0; static int fastquery = 0; static int fastinit = 0; static int olddefs = 0; static int modernargs = 0; static int aliasobj0 = 0; static int castmode = 0; static int extranative = 0; static int outputtuple = 0; static int nortti = 0; /* flags for the make_autodoc function */ enum autodoc_t { AUTODOC_CLASS, AUTODOC_CTOR, AUTODOC_DTOR, AUTODOC_STATICFUNC, AUTODOC_FUNC, AUTODOC_METHOD }; static const char *usage1 = (char *) "\ Python Options (available with -python)\n\ -aliasobj0 - Alias obj0 when using fastunpack, needed for some old typemaps \n\ -buildnone - Use Py_BuildValue(" ") to obtain Py_None (default in Windows)\n\ -castmode - Enable the casting mode, which allows implicit cast between types in python\n\ -classic - Use classic classes only\n\ -classptr - Generate shadow 'ClassPtr' as in older swig versions\n\ -cppcast - Enable C++ casting operators (default) \n\ -dirvtable - Generate a pseudo virtual table for directors for faster dispatch \n\ -extranative - Return extra native C++ wraps for std containers when possible \n\ -fastinit - Use fast init mechanism for classes (default)\n\ -fastunpack - Use fast unpack mechanism to parse the argument functions \n\ -fastproxy - Use fast proxy mechanism for member methods \n\ -fastquery - Use fast query mechanism for types \n\ -globals - Set used to access C global variable [default: 'cvar']\n\ -interface - Set the lib name to \n\ -keyword - Use keyword arguments\n\ -modern - Use modern python features only, without compatibility code\n\ -modernargs - Use \"modern\" args mechanism to pack/unpack the function arguments\n"; static const char *usage2 = (char *) "\ -newrepr - Use more informative version of __repr__ in proxy classes (default) \n\ -newvwm - New value wrapper mode, use only when everything else fails \n\ -noaliasobj0 - Don't generate an obj0 alias when using fastunpack (default) \n\ -nobuildnone - Access Py_None directly (default in non-Windows systems)\n\ -nocastmode - Disable the casting mode (default)\n\ -nocppcast - Disable C++ casting operators, useful for generating bugs\n\ -nodirvtable - Don't use the virtual table feature, resolve the python method each time (default)\n\ -noexcept - No automatic exception handling\n\ -noextranative - Don't use extra native C++ wraps for std containers when possible (default) \n\ -nofastinit - Use traditional init mechanism for classes \n\ -nofastunpack - Use traditional UnpackTuple method to parse the argument functions (default) \n\ -nofastproxy - Use traditional proxy mechanism for member methods (default) \n\ -nofastquery - Use traditional query mechanism for types (default) \n\ -noh - Don't generate the output header file\n\ -nomodern - Don't use modern python features which are not back compatible \n\ -nomodernargs - Use classic ParseTuple/CallFunction methods to pack/unpack the function arguments (default) \n"; static const char *usage3 = (char *) "\ -noolddefs - Don't emit the old method definitions even when using fastproxy (default) \n\ -nooutputtuple - Use a PyList for appending output values (default) \n\ -noproxy - Don't generate proxy classes \n\ -noproxydel - Don't generate the redundant __del__ method \n\ -noproxyimport - Don't insert proxy import statements derived from the %import directive \n\ -nortti - Disable the use of the native C++ RTTI with directors\n\ -nosafecstrings - Avoid extra strings copies when possible (default)\n\ -nothreads - Disable thread support for the entire interface\n\ -olddefs - Keep the old method definitions even when using fastproxy\n\ -oldrepr - Use shorter and old version of __repr__ in proxy classes\n\ -outputtuple - Use a PyTuple for outputs instead of a PyList (use carefully with legacy interfaces) \n\ -proxydel - Generate a __del__ method even though it is now redundant (default) \n\ -safecstrings - Use safer (but slower) C string mapping, generating copies from Python -> C/C++\n\ -threads - Add thread support for all the interface\n\ -O - Enable all the optimization options: \n\ -modern -fastdispatch -dirvtable -nosafecstrings -fvirtual -noproxydel \n\ -fastproxy -fastinit -fastunpack -fastquery -modernargs -nobuildnone \n\ -py3 - Generate code with Python 3 specific features:\n\ Function annotation \n\ \n"; class PYTHON:public Language { public: PYTHON() { /* Add code to manage protected constructors and directors */ director_prot_ctor_code = NewString(""); Printv(director_prot_ctor_code, "if ( $comparison ) { /* subclassed */\n", " $director_new \n", "} else {\n", " SWIG_SetErrorMsg(PyExc_RuntimeError,\"accessing abstract class or protected constructor\"); \n", " SWIG_fail;\n", "}\n", NIL); director_multiple_inheritance = 1; director_language = 1; } /* ------------------------------------------------------------ * Thread Implementation * ------------------------------------------------------------ */ int threads_enable(Node *n) const { return threads && !GetFlagAttr(n, "feature:nothread"); } int initialize_threads(String *f_init) { if (!threads) { return SWIG_OK; } Printf(f_init, "\n"); Printf(f_init, "/* Initialize threading */\n"); Printf(f_init, "SWIG_PYTHON_INITIALIZE_THREADS;\n"); return SWIG_OK; } virtual void thread_begin_block(Node *n, String *f) { if (!GetFlag(n, "feature:nothreadblock")) { String *bb = Getattr(n, "feature:threadbeginblock"); if (bb) { Append(f, bb); } else { Append(f, "SWIG_PYTHON_THREAD_BEGIN_BLOCK;\n"); } } } virtual void thread_end_block(Node *n, String *f) { if (!GetFlag(n, "feature:nothreadblock")) { String *eb = Getattr(n, "feature:threadendblock"); if (eb) { Append(f, eb); } else { Append(f, "SWIG_PYTHON_THREAD_END_BLOCK;\n"); } } } virtual void thread_begin_allow(Node *n, String *f) { if (!GetFlag(n, "feature:nothreadallow")) { String *bb = Getattr(n, "feature:threadbeginallow"); if (bb) { Append(f, bb); } else { Append(f, "SWIG_PYTHON_THREAD_BEGIN_ALLOW;\n"); } } } virtual void thread_end_allow(Node *n, String *f) { if (!GetFlag(n, "feature:nothreadallow")) { String *eb = Getattr(n, "feature:threadendallow"); if (eb) { Append(f, eb); } else { Append(f, "SWIG_PYTHON_THREAD_END_ALLOW;\n"); } } } /* ------------------------------------------------------------ * main() * ------------------------------------------------------------ */ virtual void main(int argc, char *argv[]) { int cppcast = 1; SWIG_library_directory("python"); for (int i = 1; i < argc; i++) { if (argv[i]) { if (strcmp(argv[i], "-interface") == 0) { if (argv[i + 1]) { interface = NewString(argv[i + 1]); Swig_mark_arg(i); Swig_mark_arg(i + 1); i++; } else { Swig_arg_error(); } /* end added */ } else if (strcmp(argv[i], "-globals") == 0) { if (argv[i + 1]) { global_name = NewString(argv[i + 1]); Swig_mark_arg(i); Swig_mark_arg(i + 1); i++; } else { Swig_arg_error(); } } else if ((strcmp(argv[i], "-shadow") == 0) || ((strcmp(argv[i], "-proxy") == 0))) { shadow = 1; Swig_mark_arg(i); } else if ((strcmp(argv[i], "-new_repr") == 0) || (strcmp(argv[i], "-newrepr") == 0)) { new_repr = 1; Swig_mark_arg(i); } else if ((strcmp(argv[i], "-old_repr") == 0) || (strcmp(argv[i], "-oldrepr") == 0)) { new_repr = 0; Swig_mark_arg(i); } else if (strcmp(argv[i], "-classptr") == 0) { classptr = 1; Swig_mark_arg(i); } else if ((strcmp(argv[i], "-noproxy") == 0)) { shadow = 0; Swig_mark_arg(i); } else if ((strcmp(argv[i], "-noproxyimport") == 0)) { shadowimport = 0; Swig_mark_arg(i); } else if (strcmp(argv[i], "-keyword") == 0) { use_kw = 1; SWIG_cparse_set_compact_default_args(1); Swig_mark_arg(i); } else if (strcmp(argv[i], "-classic") == 0) { classic = 1; modernargs = 0; modern = 0; Swig_mark_arg(i); } else if (strcmp(argv[i], "-cppcast") == 0) { cppcast = 1; Swig_mark_arg(i); } else if (strcmp(argv[i], "-nocppcast") == 0) { cppcast = 0; Swig_mark_arg(i); } else if (strcmp(argv[i], "-outputtuple") == 0) { outputtuple = 1; Swig_mark_arg(i); } else if (strcmp(argv[i], "-nooutputtuple") == 0) { outputtuple = 0; Swig_mark_arg(i); } else if (strcmp(argv[i], "-nortti") == 0) { nortti = 1; Swig_mark_arg(i); } else if (strcmp(argv[i], "-threads") == 0) { threads = 1; Swig_mark_arg(i); } else if (strcmp(argv[i], "-nothreads") == 0) { /* Turn off thread suppor mode */ nothreads = 1; Swig_mark_arg(i); } else if (strcmp(argv[i], "-safecstrings") == 0) { safecstrings = 1; Swig_mark_arg(i); } else if (strcmp(argv[i], "-nosafecstrings") == 0) { safecstrings = 0; Swig_mark_arg(i); } else if (strcmp(argv[i], "-buildnone") == 0) { buildnone = 1; nobuildnone = 0; Swig_mark_arg(i); } else if (strcmp(argv[i], "-nobuildnone") == 0) { buildnone = 0; nobuildnone = 1; Swig_mark_arg(i); } else if (strcmp(argv[i], "-dirvtable") == 0) { dirvtable = 1; Swig_mark_arg(i); } else if (strcmp(argv[i], "-nodirvtable") == 0) { dirvtable = 0; Swig_mark_arg(i); } else if (strcmp(argv[i], "-fastunpack") == 0) { fastunpack = 1; Swig_mark_arg(i); } else if (strcmp(argv[i], "-nofastunpack") == 0) { fastunpack = 0; Swig_mark_arg(i); } else if (strcmp(argv[i], "-fastproxy") == 0) { fastproxy = 1; Swig_mark_arg(i); } else if (strcmp(argv[i], "-nofastproxy") == 0) { fastproxy = 0; Swig_mark_arg(i); } else if (strcmp(argv[i], "-fastquery") == 0) { fastquery = 1; Swig_mark_arg(i); } else if (strcmp(argv[i], "-nofastquery") == 0) { fastquery = 0; Swig_mark_arg(i); } else if (strcmp(argv[i], "-fastinit") == 0) { fastinit = 1; Swig_mark_arg(i); } else if (strcmp(argv[i], "-nofastinit") == 0) { fastinit = 0; Swig_mark_arg(i); } else if (strcmp(argv[i], "-olddefs") == 0) { olddefs = 1; Swig_mark_arg(i); } else if (strcmp(argv[i], "-noolddefs") == 0) { olddefs = 0; Swig_mark_arg(i); } else if (strcmp(argv[i], "-castmode") == 0) { castmode = 1; Swig_mark_arg(i); } else if (strcmp(argv[i], "-nocastmode") == 0) { castmode = 0; Swig_mark_arg(i); } else if (strcmp(argv[i], "-extranative") == 0) { extranative = 1; Swig_mark_arg(i); } else if (strcmp(argv[i], "-noextranative") == 0) { extranative = 0; Swig_mark_arg(i); } else if (strcmp(argv[i], "-modernargs") == 0) { modernargs = 1; Swig_mark_arg(i); } else if (strcmp(argv[i], "-nomodernargs") == 0) { modernargs = 0; Swig_mark_arg(i); } else if (strcmp(argv[i], "-aliasobj0") == 0) { aliasobj0 = 1; Swig_mark_arg(i); } else if (strcmp(argv[i], "-noaliasobj0") == 0) { aliasobj0 = 0; Swig_mark_arg(i); } else if (strcmp(argv[i], "-proxydel") == 0) { proxydel = 1; Swig_mark_arg(i); } else if (strcmp(argv[i], "-noproxydel") == 0) { proxydel = 0; Swig_mark_arg(i); } else if (strcmp(argv[i], "-modern") == 0) { classic = 0; modern = 1; modernargs = 1; Swig_mark_arg(i); } else if (strcmp(argv[i], "-nomodern") == 0) { modern = 0; modernargs = 0; Swig_mark_arg(i); } else if (strcmp(argv[i], "-noh") == 0) { no_header_file = 1; Swig_mark_arg(i); } else if ((strcmp(argv[i], "-new_vwm") == 0) || (strcmp(argv[i], "-newvwm") == 0)) { /* Turn on new value wrapper mpde */ Swig_value_wrapper_mode(1); no_header_file = 1; Swig_mark_arg(i); } else if (strcmp(argv[i], "-O") == 0) { classic = 0; modern = 1; dirvtable = 1; safecstrings = 0; buildnone = 0; nobuildnone = 1; classptr = 0; proxydel = 0; fastunpack = 1; fastproxy = 1; fastinit = 1; fastquery = 1; modernargs = 1; Wrapper_fast_dispatch_mode_set(1); Wrapper_virtual_elimination_mode_set(1); Swig_mark_arg(i); } else if (strcmp(argv[i], "-help") == 0) { fputs(usage1, stdout); fputs(usage2, stdout); fputs(usage3, stdout); } else if (strcmp(argv[i], "-py3") == 0) { py3 = 1; Swig_mark_arg(i); } } } /* for */ if (py3) { /* force disable features that not compatible with Python 3.x */ classic = 0; } if (cppcast) { Preprocessor_define((DOH *) "SWIG_CPLUSPLUS_CAST", 0); } if (!global_name) global_name = NewString("cvar"); Preprocessor_define("SWIGPYTHON 1", 0); SWIG_typemap_lang("python"); SWIG_config_file("python.swg"); allow_overloading(); } /* ------------------------------------------------------------ * top() * ------------------------------------------------------------ */ virtual int top(Node *n) { /* check if directors are enabled for this module. note: this * is a "master" switch, without which no director code will be * emitted. %feature("director") statements are also required * to enable directors for individual classes or methods. * * use %module(directors="1") modulename at the start of the * interface file to enable director generation. */ String *mod_docstring = NULL; { Node *mod = Getattr(n, "module"); if (mod) { Node *options = Getattr(mod, "options"); if (options) { int dirprot = 0; if (Getattr(options, "dirprot")) { dirprot = 1; } if (Getattr(options, "nodirprot")) { dirprot = 0; } if (Getattr(options, "directors")) { allow_directors(); if (dirprot) allow_dirprot(); } if (Getattr(options, "threads")) { threads = 1; } if (Getattr(options, "castmode")) { castmode = 1; } if (Getattr(options, "nocastmode")) { castmode = 0; } if (Getattr(options, "extranative")) { extranative = 1; } if (Getattr(options, "noextranative")) { extranative = 0; } if (Getattr(options, "outputtuple")) { outputtuple = 1; } if (Getattr(options, "nooutputtuple")) { outputtuple = 0; } mod_docstring = Getattr(options, "docstring"); package = Getattr(options, "package"); } } } /* Set comparison with none for ConstructorToFunction */ setSubclassInstanceCheck(NewString("$arg != Py_None")); /* Initialize all of the output files */ String *outfile = Getattr(n, "outfile"); String *outfile_h = !no_header_file ? Getattr(n, "outfile_h") : 0; f_begin = NewFile(outfile, "w", SWIG_output_files()); if (!f_begin) { FileErrorDisplay(outfile); SWIG_exit(EXIT_FAILURE); } f_runtime = NewString(""); f_init = NewString(""); f_header = NewString(""); f_wrappers = NewString(""); f_directors_h = NewString(""); f_directors = NewString(""); if (directorsEnabled()) { if (!no_header_file) { f_runtime_h = NewFile(outfile_h, "w", SWIG_output_files()); if (!f_runtime_h) { FileErrorDisplay(outfile_h); SWIG_exit(EXIT_FAILURE); } } else { f_runtime_h = f_runtime; } } /* Register file targets with the SWIG file handler */ Swig_register_filebyname("header", f_header); Swig_register_filebyname("wrapper", f_wrappers); Swig_register_filebyname("begin", f_begin); Swig_register_filebyname("runtime", f_runtime); Swig_register_filebyname("init", f_init); Swig_register_filebyname("director", f_directors); Swig_register_filebyname("director_h", f_directors_h); const_code = NewString(""); methods = NewString(""); Swig_banner(f_begin); Printf(f_runtime, "\n"); Printf(f_runtime, "#define SWIGPYTHON\n"); if (directorsEnabled()) { Printf(f_runtime, "#define SWIG_DIRECTORS\n"); } if (nothreads) { Printf(f_runtime, "#define SWIG_PYTHON_NO_THREADS\n"); } else if (threads) { Printf(f_runtime, "#define SWIG_PYTHON_THREADS\n"); } if (safecstrings) { Printf(f_runtime, "#define SWIG_PYTHON_SAFE_CSTRINGS\n"); } if (buildnone) { Printf(f_runtime, "#define SWIG_PYTHON_BUILD_NONE\n"); } if (nobuildnone) { Printf(f_runtime, "#define SWIG_PYTHON_NO_BUILD_NONE\n"); } if (!dirvtable) { Printf(f_runtime, "#define SWIG_PYTHON_DIRECTOR_NO_VTABLE\n"); } if (outputtuple) { Printf(f_runtime, "#define SWIG_PYTHON_OUTPUT_TUPLE\n"); } if (nortti) { Printf(f_runtime, "#ifndef SWIG_DIRECTOR_NORTTI\n"); Printf(f_runtime, "#define SWIG_DIRECTOR_NORTTI\n"); Printf(f_runtime, "#endif\n"); } if (castmode) { Printf(f_runtime, "#define SWIG_CASTRANK_MODE\n"); Printf(f_runtime, "#define SWIG_PYTHON_CAST_MODE\n"); } if (extranative) { Printf(f_runtime, "#define SWIG_PYTHON_EXTRA_NATIVE_CONTAINERS\n"); } if (classic) { Printf(f_runtime, "#define SWIG_PYTHON_CLASSIC\n"); } Printf(f_runtime, "\n"); Printf(f_header, "#if (PY_VERSION_HEX <= 0x02000000)\n"); Printf(f_header, "# if !defined(SWIG_PYTHON_CLASSIC)\n"); Printf(f_header, "# error \"This python version requires swig to be run with the '-classic' option\"\n"); Printf(f_header, "# endif\n"); Printf(f_header, "#endif\n"); if (modern) { Printf(f_header, "#if (PY_VERSION_HEX <= 0x02020000)\n"); Printf(f_header, "# error \"This python version requires swig to be run with the '-nomodern' option\"\n"); Printf(f_header, "#endif\n"); } if (modernargs) { Printf(f_header, "#if (PY_VERSION_HEX <= 0x02020000)\n"); Printf(f_header, "# error \"This python version requires swig to be run with the '-nomodernargs' option\"\n"); Printf(f_header, "#endif\n"); } if (fastunpack) { Printf(f_header, "#ifndef METH_O\n"); Printf(f_header, "# error \"This python version requires swig to be run with the '-nofastunpack' option\"\n"); Printf(f_header, "#endif\n"); } if (fastquery) { Printf(f_header, "#ifdef SWIG_TypeQuery\n"); Printf(f_header, "# undef SWIG_TypeQuery\n"); Printf(f_header, "#endif\n"); Printf(f_header, "#define SWIG_TypeQuery SWIG_Python_TypeQuery\n"); } /* Set module name */ module = Copy(Getattr(n, "name")); mainmodule = Getattr(n, "name"); if (directorsEnabled()) { Swig_banner(f_directors_h); Printf(f_directors_h, "\n"); Printf(f_directors_h, "#ifndef SWIG_%s_WRAP_H_\n", module); Printf(f_directors_h, "#define SWIG_%s_WRAP_H_\n\n", module); if (dirprot_mode()) { Printf(f_directors_h, "#include \n"); Printf(f_directors_h, "#include \n\n"); } Printf(f_directors, "\n\n"); Printf(f_directors, "/* ---------------------------------------------------\n"); Printf(f_directors, " * C++ director class methods\n"); Printf(f_directors, " * --------------------------------------------------- */\n\n"); if (outfile_h) Printf(f_directors, "#include \"%s\"\n\n", Swig_file_filename(outfile_h)); } /* If shadow classing is enabled, we're going to change the module name to "_module" */ if (shadow) { String *filen = NewStringf("%s%s.py", SWIG_output_directory(), Char(module)); // If we don't have an interface then change the module name X to _X if (interface) module = interface; else Insert(module, 0, "_"); if ((f_shadow_py = NewFile(filen, "w", SWIG_output_files())) == 0) { FileErrorDisplay(filen); SWIG_exit(EXIT_FAILURE); } Delete(filen); filen = NULL; f_shadow = NewString(""); f_shadow_imports = NewString(""); f_shadow_stubs = NewString(""); Swig_register_filebyname("shadow", f_shadow); Swig_register_filebyname("python", f_shadow); Swig_banner_target_lang(f_shadow, "#"); if (!modern) { Printv(f_shadow, "# This file is compatible with both classic and new-style classes.\n", NIL); } if (mod_docstring && Len(mod_docstring)) { Printv(f_shadow, "\n\"\"\"\n", mod_docstring, "\n\"\"\"\n", NIL); Delete(mod_docstring); mod_docstring = NULL; } Printv(f_shadow, "\nfrom sys import version_info\n", NULL); if(fastproxy) { Printv(f_shadow, "if version_info >= (3,0,0):\n", NULL); Printf(f_shadow, tab4 "new_instancemethod = lambda func, inst, cls: %s.SWIG_PyInstanceMethod_New(func)\n", module); Printv(f_shadow, "else:\n", NULL); Printv(f_shadow, tab4, "from new import instancemethod as new_instancemethod\n", NULL); } /* Import the C-extension module. This should be a relative import, * since the shadow module may also have been imported by a relative * import, and there is thus no guarantee that the C-extension is on * sys.path. Relative imports must be explicitly specified from 2.6.0 * onwards (implicit relative imports will raise a DeprecationWarning * in 2.6, and fail in 2.7 onwards), but the relative import syntax * isn't available in python 2.4 or earlier, so we have to write some * code conditional on the python version. */ Printv(f_shadow, "if version_info >= (2,6,0):\n", NULL); Printv(f_shadow, tab4, "def swig_import_helper():\n", NULL); Printv(f_shadow, tab8, "from os.path import dirname\n", NULL); Printv(f_shadow, tab8, "import imp\n", NULL); Printv(f_shadow, tab8, "fp = None\n", NULL); Printv(f_shadow, tab8, "try:\n", NULL); Printf(f_shadow, tab4 tab8 "fp, pathname, description = imp.find_module('%s', [dirname(__file__)])\n", module); Printf(f_shadow, tab8 "except ImportError:\n"); /* At here, the module may already loaded, so simply import it. */ Printf(f_shadow, tab4 tab8 "import %s\n", module); Printf(f_shadow, tab4 tab8 "return %s\n", module); Printv(f_shadow, tab8 "if fp is not None:\n", NULL); Printv(f_shadow, tab4 tab8 "try:\n", NULL); Printf(f_shadow, tab8 tab8 "_mod = imp.load_module('%s', fp, pathname, description)\n", module); Printv(f_shadow, tab4 tab8, "finally:\n", NULL); Printv(f_shadow, tab8 tab8, "fp.close()\n", NULL); Printv(f_shadow, tab4 tab8, "return _mod\n", NULL); Printf(f_shadow, tab4 "%s = swig_import_helper()\n", module); Printv(f_shadow, tab4, "del swig_import_helper\n", NULL); Printv(f_shadow, "else:\n", NULL); Printf(f_shadow, tab4 "import %s\n", module); /* Delete the version_info symbol since we don't use it elsewhere in the * module. */ Printv(f_shadow, "del version_info\n", NULL); if (modern || !classic) { Printv(f_shadow, "try:\n", tab4, "_swig_property = property\n", "except NameError:\n", tab4, "pass # Python < 2.2 doesn't have 'property'.\n", NULL); } /* if (!modern) */ /* always needed, a class can be forced to be no-modern, such as an exception */ { // Python-2.2 object hack Printv(f_shadow, "def _swig_setattr_nondynamic(self,class_type,name,value,static=1):\n", tab4, "if (name == \"thisown\"): return self.this.own(value)\n", tab4, "if (name == \"this\"):\n", tab4, tab4, "if type(value).__name__ == 'SwigPyObject':\n", tab4, tab8, "self.__dict__[name] = value\n", #ifdef USE_THISOWN tab4, tab8, "if hasattr(value,\"thisown\"): self.__dict__[\"thisown\"] = value.thisown\n", tab4, tab8, "del value.thisown\n", #endif tab4, tab8, "return\n", tab4, "method = class_type.__swig_setmethods__.get(name,None)\n", tab4, "if method: return method(self,value)\n", #ifdef USE_THISOWN tab4, "if (not static) or hasattr(self,name) or (name == \"thisown\"):\n", #else tab4, "if (not static) or hasattr(self,name):\n", #endif tab4, tab4, "self.__dict__[name] = value\n", tab4, "else:\n", tab4, tab4, "raise AttributeError(\"You cannot add attributes to %s\" % self)\n\n", "def _swig_setattr(self,class_type,name,value):\n", tab4, "return _swig_setattr_nondynamic(self,class_type,name,value,0)\n\n", NIL); Printv(f_shadow, "def _swig_getattr(self,class_type,name):\n", tab4, "if (name == \"thisown\"): return self.this.own()\n", tab4, "method = class_type.__swig_getmethods__.get(name,None)\n", tab4, "if method: return method(self)\n", tab4, "raise AttributeError(name)\n\n", NIL); Printv(f_shadow, "def _swig_repr(self):\n", tab4, "try: strthis = \"proxy of \" + self.this.__repr__()\n", tab4, "except: strthis = \"\"\n", tab4, "return \"<%s.%s; %s >\" % (self.__class__.__module__, self.__class__.__name__, strthis,)\n\n", NIL); if (!classic) { /* Usage of types.ObjectType is deprecated. * But don't sure wether this would broken old Python? */ Printv(f_shadow, // "import types\n", "try:\n", // " _object = types.ObjectType\n", " _object = object\n", " _newclass = 1\n", "except AttributeError:\n", " class _object : pass\n", " _newclass = 0\n", // "del types\n", "\n\n", NIL); } } if (modern) { Printv(f_shadow, "def _swig_setattr_nondynamic_method(set):\n", tab4, "def set_attr(self,name,value):\n", #ifdef USE_THISOWN tab4, tab4, "if hasattr(self,name) or (name in (\"this\", \"thisown\")):\n", #else tab4, tab4, "if (name == \"thisown\"): return self.this.own(value)\n", tab4, tab4, "if hasattr(self,name) or (name == \"this\"):\n", #endif tab4, tab4, tab4, "set(self,name,value)\n", tab4, tab4, "else:\n", tab4, tab4, tab4, "raise AttributeError(\"You cannot add attributes to %s\" % self)\n", tab4, "return set_attr\n\n\n", NIL); } if (directorsEnabled()) { // Try loading weakref.proxy, which is only available in Python 2.1 and higher Printv(f_shadow, "try:\n", tab4, "import weakref\n", tab4, "weakref_proxy = weakref.proxy\n", "except:\n", tab4, "weakref_proxy = lambda x: x\n", "\n\n", NIL); } // Include some information in the code Printf(f_header, "\n/*-----------------------------------------------\n @(target):= %s.so\n\ ------------------------------------------------*/\n", module); } Printf(f_header, "#if PY_VERSION_HEX >= 0x03000000\n"); Printf(f_header, "# define SWIG_init PyInit_%s\n\n", module); Printf(f_header, "#else\n"); Printf(f_header, "# define SWIG_init init%s\n\n", module); Printf(f_header, "#endif\n"); Printf(f_header, "#define SWIG_name \"%s\"\n", module); Printf(f_wrappers, "#ifdef __cplusplus\n"); Printf(f_wrappers, "extern \"C\" {\n"); Printf(f_wrappers, "#endif\n"); Append(const_code, "static swig_const_info swig_const_table[] = {\n"); Append(methods, "static PyMethodDef SwigMethods[] = {\n"); /* the method exported for replacement of new.instancemethod in Python 3 */ add_pyinstancemethod_new(); /* emit code */ Language::top(n); if (directorsEnabled()) { // Insert director runtime into the f_runtime file (make it occur before %header section) Swig_insert_file("director.swg", f_runtime); } /* Close language module */ Append(methods, "\t { NULL, NULL, 0, NULL }\n"); Append(methods, "};\n"); Printf(f_wrappers, "%s\n", methods); SwigType_emit_type_table(f_runtime, f_wrappers); Append(const_code, "{0, 0, 0, 0.0, 0, 0}};\n"); Printf(f_wrappers, "%s\n", const_code); initialize_threads(f_init); Printf(f_init, "#if PY_VERSION_HEX >= 0x03000000\n"); Printf(f_init, " return m;\n"); Printf(f_init, "#else\n"); Printf(f_init, " return;\n"); Printf(f_init, "#endif\n"); Printf(f_init, "}\n"); Printf(f_wrappers, "#ifdef __cplusplus\n"); Printf(f_wrappers, "}\n"); Printf(f_wrappers, "#endif\n"); if (shadow) { Printv(f_shadow_py, f_shadow, "\n", NIL); Printv(f_shadow_py, f_shadow_stubs, "\n", NIL); Close(f_shadow_py); Delete(f_shadow_py); } /* Close all of the files */ Dump(f_runtime, f_begin); Dump(f_header, f_begin); if (directorsEnabled()) { Dump(f_directors_h, f_runtime_h); Printf(f_runtime_h, "\n"); Printf(f_runtime_h, "#endif\n"); if (f_runtime_h != f_begin) Close(f_runtime_h); Dump(f_directors, f_begin); } Dump(f_wrappers, f_begin); Wrapper_pretty_print(f_init, f_begin); Delete(f_header); Delete(f_wrappers); Delete(f_init); Delete(f_directors); Delete(f_directors_h); Close(f_begin); Delete(f_runtime); Delete(f_begin); return SWIG_OK; } /* ------------------------------------------------------------ * Emit the wrapper for PyInstanceMethod_New to MethodDef array. * This wrapper is used to implement -fastproxy, * as a replacement of new.instancemethod in Python 3. * ------------------------------------------------------------ */ int add_pyinstancemethod_new() { String* name = NewString("SWIG_PyInstanceMethod_New"); Printf(methods, "\t { (char *)\"%s\", (PyCFunction)%s, METH_O, NULL},\n", name, name); Delete(name); return 0; } /* ------------------------------------------------------------ * importDirective() * ------------------------------------------------------------ */ virtual int importDirective(Node *n) { if (shadow) { String *modname = Getattr(n, "module"); if (modname) { String *import = NewString("import "); // Find the module node for this imported module. It should be the // first child but search just in case. Node *mod = firstChild(n); while (mod && Strcmp(nodeType(mod), "module") != 0) mod = nextSibling(mod); // Is the imported module in another package? (IOW, does it use the // %module(package="name") option and it's different than the package // of this module.) Node *options = Getattr(mod, "options"); String *pkg = options ? Getattr(options, "package") : 0; if (pkg && (!package || Strcmp(pkg, package) != 0)) { Printf(import, "%s.", pkg); } // finally, output the name of the imported module if (shadowimport) { if (!options || (!Getattr(options, "noshadow") && !Getattr(options, "noproxy"))) { Printf(import, "_%s\n", modname); if (!Strstr(f_shadow_imports, import)) { if (pkg && (!package || Strcmp(pkg, package) != 0)) { Printf(f_shadow, "import %s.%s\n", pkg, modname); } else { Printf(f_shadow, "import %s\n", modname); } Printv(f_shadow_imports, import, NULL); } } } Delete(import); } } return Language::importDirective(n); } /* ------------------------------------------------------------ * funcCall() * Emit shadow code to call a function in the extension * module. Using proper argument and calling style for * given node n. * ------------------------------------------------------------ */ String *funcCall(String *name, String *parms) { String *str = NewString(""); Printv(str, module, ".", name, "(", parms, ")", NIL); return str; } /* ------------------------------------------------------------ * pythoncode() - Output python code into the shadow file * ------------------------------------------------------------ */ String *pythoncode(String *code, const_String_or_char_ptr indent) { String *out = NewString(""); String *temp; char *t; if (!indent) indent = ""; temp = NewString(code); t = Char(temp); if (*t == '{') { Delitem(temp, 0); Delitem(temp, DOH_END); } /* Split the input text into lines */ List *clist = DohSplitLines(temp); Delete(temp); int initial = 0; String *s = 0; Iterator si; /* Get the initial indentation */ for (si = First(clist); si.item; si = Next(si)) { s = si.item; if (Len(s)) { char *c = Char(s); while (*c) { if (!isspace(*c)) break; initial++; c++; } if (*c && !isspace(*c)) break; else { initial = 0; } } } while (si.item) { s = si.item; if (Len(s) > initial) { char *c = Char(s); c += initial; Printv(out, indent, c, "\n", NIL); } else { Printv(out, "\n", NIL); } si = Next(si); } Delete(clist); return out; } /* ------------------------------------------------------------ * autodoc level declarations * ------------------------------------------------------------ */ enum autodoc_l { NO_AUTODOC = -2, // no autodoc STRING_AUTODOC = -1, // use provided string NAMES_AUTODOC = 0, // only parameter names TYPES_AUTODOC = 1, // parameter names and types EXTEND_AUTODOC = 2, // extended documentation and parameter names EXTEND_TYPES_AUTODOC = 3 // extended documentation and parameter types + names }; autodoc_l autodoc_level(String *autodoc) { autodoc_l dlevel = NO_AUTODOC; if (autodoc) { char *c = Char(autodoc); if (c && isdigit(c[0])) { dlevel = (autodoc_l) atoi(c); } else { if (strcmp(c, "extended") == 0) { dlevel = EXTEND_AUTODOC; } else { dlevel = STRING_AUTODOC; } } } return dlevel; } /* ------------------------------------------------------------ * have_docstring() * Check if there is a docstring directive and it has text, * or there is an autodoc flag set * ------------------------------------------------------------ */ bool have_docstring(Node *n) { String *str = Getattr(n, "feature:docstring"); return (str != NULL && Len(str) > 0) || (Getattr(n, "feature:autodoc") && !GetFlag(n, "feature:noautodoc")); } /* ------------------------------------------------------------ * docstring() * Get the docstring text, stripping off {} if neccessary, * and enclose in triple double quotes. If autodoc is also * set then it will build a combined docstring. * ------------------------------------------------------------ */ String *docstring(Node *n, autodoc_t ad_type, const String *indent, bool use_triple = true) { String *str = Getattr(n, "feature:docstring"); bool have_ds = (str != NULL && Len(str) > 0); bool have_auto = (Getattr(n, "feature:autodoc") && !GetFlag(n, "feature:noautodoc")); const char *triple_double = use_triple ? "\"\"\"" : ""; String *autodoc = NULL; String *doc = NULL; if (have_ds) { char *t = Char(str); if (*t == '{') { Delitem(str, 0); Delitem(str, DOH_END); } } if (have_auto) { autodoc = make_autodoc(n, ad_type); have_auto = (autodoc != NULL && Len(autodoc) > 0); } // If there is more than one line then make docstrings like this: // // """ // This is line1 // And here is line2 followed by the rest of them // """ // // otherwise, put it all on a single line // if (have_auto && have_ds) { // Both autodoc and docstring are present doc = NewString(""); Printv(doc, triple_double, "\n", pythoncode(autodoc, indent), "\n", pythoncode(str, indent), indent, triple_double, NIL); } else if (!have_auto && have_ds) { // only docstring if (Strchr(str, '\n') == NULL) { doc = NewStringf("%s%s%s", triple_double, str, triple_double); } else { doc = NewString(""); Printv(doc, triple_double, "\n", pythoncode(str, indent), indent, triple_double, NIL); } } else if (have_auto && !have_ds) { // only autodoc if (Strchr(autodoc, '\n') == NULL) { doc = NewStringf("%s%s%s", triple_double, autodoc, triple_double); } else { doc = NewString(""); Printv(doc, triple_double, "\n", pythoncode(autodoc, indent), indent, triple_double, NIL); } } else doc = NewString(""); // Save the generated strings in the parse tree in case they are used later // by post processing tools Setattr(n, "python:docstring", doc); Setattr(n, "python:autodoc", autodoc); return doc; } /* ----------------------------------------------------------------------------- * makeParameterName() * Note: the generated name should consist with that in kwnames[] * * Inputs: * n - Node * p - parameter node * arg_num - parameter argument number * Return: * arg - a unique parameter name * ----------------------------------------------------------------------------- */ String *makeParameterName(ParmList *plist, Parm *p, int arg_num) { String *arg = 0; String *pn = Swig_name_make(p, 0, Getattr(p, "name"), 0, 0); // Use C parameter name unless it is a duplicate or an empty parameter name int count = 0; if ( SwigType_isvarargs(Getattr(p, "type")) ) { return NewString("*args"); } while (plist) { if ((Cmp(pn, Getattr(plist, "name")) == 0)) count++; plist = nextSibling(plist); } arg = (!pn || !Len(pn) || (count > 1)) ? NewStringf("arg%d", arg_num) : Copy(pn); return arg; } /* ------------------------------------------------------------ * make_autodocParmList() * Generate the documentation for the function parameters * Parameters: * func_annotation: Function annotation support * ------------------------------------------------------------ */ String *make_autodocParmList(Node *n, bool showTypes, bool calling=false, bool func_annotation=false) { String *doc = NewString(""); String *pdocs = Copy(Getattr(n, "feature:pdocs")); ParmList *plist = CopyParmList(Getattr(n, "parms")); Parm *p; Parm *pnext; Node *lookup; int lines = 0; int arg_num = 0; const int maxwidth = 50; if(calling) func_annotation = false; if (pdocs) Append(pdocs, "\n"); Swig_typemap_attach_parms("in", plist, 0); Swig_typemap_attach_parms("doc", plist, 0); if (Strcmp(ParmList_protostr(plist), "void")==0) { //No parameters actually return doc; } for (p = plist; p; p = pnext) { String *tm = Getattr(p, "tmap:in"); if (tm) { pnext = Getattr(p, "tmap:in:next"); if (checkAttribute(p, "tmap:in:numinputs", "0")) { continue; } } else { pnext = nextSibling(p); } String *name = 0; String *type = 0; String *value = 0; String *ptype = 0; String *pdoc = Getattr(p, "tmap:doc"); if (pdoc) { name = Getattr(p, "tmap:doc:name"); type = Getattr(p, "tmap:doc:type"); value = Getattr(p, "tmap:doc:value"); ptype = Getattr(p, "tmap:doc:pytype"); } name = name ? name : Getattr(p, "name"); type = type ? type : Getattr(p, "type"); value = value ? value : Getattr(p, "value"); name = makeParameterName(plist, p, arg_num); // Reset it for convinient in further use. (mainly for makeParameterName()) // Since the plist is created by CopyParmList, // we can hope that the set would have no side effect Setattr(p, "name", name); arg_num++; if (Len(doc)) { // add a comma to the previous one if any Append(doc, ", "); // Do we need to wrap a long line? if ((Len(doc) - lines * maxwidth) > maxwidth) { Printf(doc, "\n%s", tab4); lines += 1; } } type = SwigType_base(type); lookup = Swig_symbol_clookup(type, 0); if (lookup) type = Getattr(lookup, "sym:name"); // Do the param type too? if (showTypes) Printf(doc, "%s ", type); Append(doc, name); if (pdoc) { if (!pdocs) pdocs = NewString("Parameters:\n"); Printf(pdocs, " %s\n", pdoc); } // Write the function annoation if (func_annotation) Printf(doc, " : '%s'", type); // Write default value if (value && !calling) { String* pv = pyvalue(value, Getattr(p, "type")); if (pv) value = pv; else { lookup = Swig_symbol_clookup(value, 0); if (lookup) { value = Getattr(lookup, "sym:name"); } } Printf(doc, " = %s", value); } } if (pdocs) Setattr(n, "feature:pdocs", pdocs); Delete(plist); return doc; } /* ------------------------------------------------------------ * make_autodoc() * Build a docstring for the node, using parameter and other * info in the parse tree. If the value of the autodoc * attribute is "0" then do not include parameter types, if * it is "1" (the default) then do. If it has some other * value then assume it is supplied by the extension writer * and use it directly. * ------------------------------------------------------------ */ String *make_autodoc(Node *n, autodoc_t ad_type) { int extended = 0; // If the function is overloaded then this funciton is called // for the last one. Rewind to the first so the docstrings are // in order. while (Getattr(n, "sym:previousSibling")) n = Getattr(n, "sym:previousSibling"); String *doc = NewString(""); while (n) { bool showTypes = false; bool skipAuto = false; String *autodoc = Getattr(n, "feature:autodoc"); autodoc_l dlevel = autodoc_level(autodoc); switch (dlevel) { case NO_AUTODOC: break; case NAMES_AUTODOC: showTypes = false; break; case TYPES_AUTODOC: showTypes = true; break; case EXTEND_AUTODOC: extended = 1; showTypes = false; break; case EXTEND_TYPES_AUTODOC: extended = 1; showTypes = true; break; case STRING_AUTODOC: Append(doc, autodoc); skipAuto = true; break; } if (!skipAuto) { String *symname = Getattr(n, "sym:name"); SwigType *type = Getattr(n, "type"); if (type) { if (Strcmp(type, "void") == 0) type = NULL; else { type = SwigType_base(type); Node *lookup = Swig_symbol_clookup(type, 0); if (lookup) type = Getattr(lookup, "sym:name"); } } switch (ad_type) { case AUTODOC_CLASS: { // Only do the autodoc if there isn't a docstring for the class String *str = Getattr(n, "feature:docstring"); if (str == NULL || Len(str) == 0) { if (CPlusPlus) { Printf(doc, "Proxy of C++ %s class", real_classname); } else { Printf(doc, "Proxy of C %s struct", real_classname); } } } break; case AUTODOC_CTOR: if (Strcmp(class_name, symname) == 0) { String *paramList = make_autodocParmList(n, showTypes); if (Len(paramList)) Printf(doc, "__init__(self, %s) -> %s", paramList, class_name); else Printf(doc, "__init__(self) -> %s", class_name); } else Printf(doc, "%s(%s) -> %s", symname, make_autodocParmList(n, showTypes), class_name); break; case AUTODOC_DTOR: Append(doc, "__del__(self)"); break; case AUTODOC_STATICFUNC: Printf(doc, "%s(%s)", symname, make_autodocParmList(n, showTypes)); if (type) Printf(doc, " -> %s", type); break; case AUTODOC_FUNC: Printf(doc, "%s(%s)", symname, make_autodocParmList(n, showTypes)); if (type) Printf(doc, " -> %s", type); break; case AUTODOC_METHOD: String *paramList = make_autodocParmList(n, showTypes); if (Len(paramList)) Printf(doc, "%s(self, %s)", symname, paramList); else Printf(doc, "%s(self)", symname); if (type) Printf(doc, " -> %s", type); break; } } if (extended) { String *pdocs = Getattr(n, "feature:pdocs"); if (pdocs) { Printv(doc, "\n", pdocs, NULL); } } // if it's overloaded then get the next decl and loop around again n = Getattr(n, "sym:nextSibling"); if (n) Append(doc, "\n"); } return doc; } /* ------------------------------------------------------------ * pyvalue() * Check if string v can be a Python value literal, * (eg. number or string), or translate it to a Python literal. * ------------------------------------------------------------ */ String* pyvalue(String *v, SwigType *t) { if (v && Len(v)>0) { char fc = (Char(v))[0]; if (('0'<=fc && fc<='9') || '\''==fc || '"'==fc) { /* number or string (or maybe NULL pointer)*/ if (SwigType_ispointer(t) && Strcmp(v, "0")==0) return NewString("None"); else return v; } if (Strcmp(v, "true")==0 || Strcmp(v, "FALSE")==0) return NewString("True"); if (Strcmp(v, "false")==0 || Strcmp(v, "FALSE")==0) return NewString("False"); if (Strcmp(v, "NULL")==0) return NewString("None"); } return 0; } /* ------------------------------------------------------------ * is_primitive_defaultargs() * Check if all the default args have primitive type. * (So we can generate proper parameter list with default * values..) * ------------------------------------------------------------ */ bool is_primitive_defaultargs(Node *n) { ParmList *plist = CopyParmList(Getattr(n, "parms")); Parm *p; Parm *pnext; Swig_typemap_attach_parms("in", plist, 0); for (p = plist; p; p = pnext) { String *tm = Getattr(p, "tmap:in"); if (tm) { pnext = Getattr(p, "tmap:in:next"); if (checkAttribute(p, "tmap:in:numinputs", "0")) { continue; } } else { pnext = nextSibling(p); } String *type = Getattr(p, "type"); String *value = Getattr(p, "value"); if (!pyvalue(value, type)) return false; } return true; } /* ------------------------------------------------------------ * is_real_overloaded() * Check if the function is overloaded, but not just have some * siblings generated due to the original function have * default arguments. * ------------------------------------------------------------ */ bool is_real_overloaded(Node *n) { Node *h = Getattr(n, "sym:overloaded"); Node *i; if (!h) return false; i = Getattr(h, "sym:nextSibling"); while (i) { Node *nn = Getattr(i, "defaultargs"); if (nn != h) { /* Check if overloaded function has defaultargs and * pointed to the first overloaded. */ return true; } i = Getattr(i, "sym:nextSibling"); } return false; } /* ------------------------------------------------------------ * make_pyParmList() * Generate parameter list for Python functions or methods, * reuse make_autodocParmList() to do so. * ------------------------------------------------------------ */ String* make_pyParmList(Node *n, bool in_class, bool is_calling, int kw) { /* Get the original function for a defaultargs copy, * see default_arguments() in parser.y. */ Node *nn = Getattr(n, "defaultargs"); if (nn) n = nn; /* For overloaded function, just use *args */ if (is_real_overloaded(n) || GetFlag(n, "feature:compactdefaultargs") || !is_primitive_defaultargs(n)) { String *parms = NewString(""); if(in_class) Printf(parms, "self, "); Printf(parms, "*args"); if (kw) Printf(parms, ", **kwargs"); return parms; } bool funcanno = py3 ? true : false; String *params = NewString(""); String *_params = make_autodocParmList(n, false, is_calling, funcanno); if (in_class) { Printf(params, "self"); if(Len(_params) > 0) Printf(params, ", "); } Printv(params, _params, NULL); return params; } /* ------------------------------------------------------------ * have_pythonprepend() * Check if there is a %pythonprepend directive and it has text * ------------------------------------------------------------ */ bool have_pythonprepend(Node *n) { String *str = Getattr(n, "feature:pythonprepend"); return (str != NULL && Len(str) > 0); } /* ------------------------------------------------------------ * pythonprepend() * Get the %pythonprepend code, stripping off {} if neccessary * ------------------------------------------------------------ */ String *pythonprepend(Node *n) { String *str = Getattr(n, "feature:pythonprepend"); char *t = Char(str); if (*t == '{') { Delitem(str, 0); Delitem(str, DOH_END); } return str; } /* ------------------------------------------------------------ * have_pythonappend() * Check if there is a %pythonappend directive and it has text * ------------------------------------------------------------ */ bool have_pythonappend(Node *n) { String *str = Getattr(n, "feature:pythonappend"); if (!str) str = Getattr(n, "feature:addtofunc"); return (str != NULL && Len(str) > 0); } /* ------------------------------------------------------------ * pythonappend() * Get the %pythonappend code, stripping off {} if neccessary * ------------------------------------------------------------ */ String *pythonappend(Node *n) { String *str = Getattr(n, "feature:pythonappend"); if (!str) str = Getattr(n, "feature:addtofunc"); char *t = Char(str); if (*t == '{') { Delitem(str, 0); Delitem(str, DOH_END); } return str; } /* ------------------------------------------------------------ * have_addtofunc() * Check if there is a %addtofunc directive and it has text * ------------------------------------------------------------ */ bool have_addtofunc(Node *n) { return have_pythonappend(n) || have_pythonprepend(n) || have_docstring(n); } /* ------------------------------------------------------------ * returnTypeAnnotation() * Helper function for constructing the function annotation * of the returning type, return a empty string for Python 2.x * ------------------------------------------------------------ */ String* returnTypeAnnotation(Node *n) { String *ret=0; Parm *p = Getattr(n, "parms"); String *tm; /* Try to guess the returning type by argout typemap, * however the result may not accurate. */ while (p) { if ((tm=Getattr(p, "tmap:argout:match_type"))) { tm = SwigType_str(tm, 0); if (ret) Printv(ret, ", ", tm, NULL); else ret = tm; p = Getattr(p, "tmap:argout:next"); } else { p = nextSibling(p); } } /* If no argout typemap, then get the returning type from * the function prototype. */ if (!ret) { ret = Getattr(n, "type"); if (ret) ret = SwigType_str(ret, 0); } return (ret && py3) ? NewStringf(" -> \"%s\" ", ret) : NewString(""); } /* ------------------------------------------------------------ * emitFunctionShadowHelper() * Refactoring some common code out of functionWrapper and * dispatchFunction that writes the proxy code for non-member * functions. * ------------------------------------------------------------ */ void emitFunctionShadowHelper(Node *n, File *f_dest, String *name, int kw) { String *parms = make_pyParmList(n, false, false, kw); String *callParms = make_pyParmList(n, false, true, kw); /* Make a wrapper function to insert the code into */ Printv(f_dest, "\ndef ", name, "(", parms, ")", returnTypeAnnotation(n), ":\n", NIL); if (have_docstring(n)) Printv(f_dest, " ", docstring(n, AUTODOC_FUNC, tab4), "\n", NIL); if (have_pythonprepend(n)) Printv(f_dest, pythoncode(pythonprepend(n), " "), "\n", NIL); if (have_pythonappend(n)) { Printv(f_dest, " val = ", funcCall(name, callParms), "\n", NIL); Printv(f_dest, pythoncode(pythonappend(n), " "), "\n", NIL); Printv(f_dest, " return val\n", NIL); } else { Printv(f_dest, " return ", funcCall(name, callParms), "\n", NIL); } if (Getattr(n, "feature:python:callback") || !have_addtofunc(n)) { /* If there is no addtofunc directive then just assign from the extension module (for speed up) */ Printv(f_dest, name, " = ", module, ".", name, "\n", NIL); } } /* ------------------------------------------------------------ * check_kwargs() * check if using kwargs is allowed for this Node * ------------------------------------------------------------ */ int check_kwargs(Node *n) { return (use_kw || GetFlag(n, "feature:kwargs")) && !GetFlag(n, "memberset") && !GetFlag(n, "memberget"); } /* ------------------------------------------------------------ * add_method() * ------------------------------------------------------------ */ void add_method(String *name, String *function, int kw, Node *n = 0, int funpack = 0, int num_required = -1, int num_arguments = -1) { if (!kw) { if (n && funpack) { if (num_required == 0 && num_arguments == 0) { Printf(methods, "\t { (char *)\"%s\", (PyCFunction)%s, METH_NOARGS, ", name, function); } else if (num_required == 1 && num_arguments == 1) { Printf(methods, "\t { (char *)\"%s\", (PyCFunction)%s, METH_O, ", name, function); } else { Printf(methods, "\t { (char *)\"%s\", %s, METH_VARARGS, ", name, function); } } else { Printf(methods, "\t { (char *)\"%s\", %s, METH_VARARGS, ", name, function); } } else { Printf(methods, "\t { (char *)\"%s\", (PyCFunction) %s, METH_VARARGS | METH_KEYWORDS, ", name, function); } if (!n) { Append(methods, "NULL"); } else if (Getattr(n, "feature:callback")) { if (have_docstring(n)) { String *ds = docstring(n, AUTODOC_FUNC, "", false); Replaceall(ds, "\\", "\\\\"); Replaceall(ds, "\"", "\\\""); Replaceall(ds, "\n", "\\n\"\n\t\t\""); Printf(methods, "(char *)\"%s\\nswig_ptr: %s\"", ds, Getattr(n, "feature:callback:name")); } else { Printf(methods, "(char *)\"swig_ptr: %s\"", Getattr(n, "feature:callback:name")); } } else if (have_docstring(n)) { String *ds = docstring(n, AUTODOC_FUNC, "", false); Replaceall(ds, "\\", "\\\\"); Replaceall(ds, "\"", "\\\""); Replaceall(ds, "\n", "\\n\"\n\t\t\""); Printf(methods, "(char *)\"%s\"", ds); } else { Append(methods, "NULL"); } Append(methods, "},\n"); } /* ------------------------------------------------------------ * dispatchFunction() * ------------------------------------------------------------ */ void dispatchFunction(Node *n, int funpack = 0) { /* Last node in overloaded chain */ int maxargs; String *tmp = NewString(""); String *dispatch; const char *dispatch_code = funpack ? "return %s(self, argc, argv);" : "return %s(self, args);"; if (castmode) { dispatch = Swig_overload_dispatch_cast(n, dispatch_code, &maxargs); } else { dispatch = Swig_overload_dispatch(n, dispatch_code, &maxargs); } /* Generate a dispatch wrapper for all overloaded functions */ Wrapper *f = NewWrapper(); String *symname = Getattr(n, "sym:name"); String *wname = Swig_name_wrapper(symname); Printv(f->def, "SWIGINTERN PyObject *", wname, "(PyObject *self, PyObject *args) {", NIL); Wrapper_add_local(f, "argc", "int argc"); Printf(tmp, "PyObject *argv[%d]", maxargs + 1); Wrapper_add_local(f, "argv", tmp); if (!fastunpack) { Wrapper_add_local(f, "ii", "int ii"); Append(f->code, "if (!PyTuple_Check(args)) SWIG_fail;\n"); Append(f->code, "argc = (int)PyObject_Length(args);\n"); Printf(f->code, "for (ii = 0; (ii < argc) && (ii < %d); ii++) {\n", maxargs); Append(f->code, "argv[ii] = PyTuple_GET_ITEM(args,ii);\n"); Append(f->code, "}\n"); } else { String *iname = Getattr(n, "sym:name"); Printf(f->code, "if (!(argc = SWIG_Python_UnpackTuple(args,\"%s\",0,%d,argv))) SWIG_fail;\n", iname, maxargs); Append(f->code, "--argc;\n"); } Replaceall(dispatch, "$args", "self,args"); Printv(f->code, dispatch, "\n", NIL); if (GetFlag(n, "feature:python:maybecall")) { Append(f->code, "fail:\n"); Append(f->code, "Py_INCREF(Py_NotImplemented);\n"); Append(f->code, "return Py_NotImplemented;\n"); } else { Node *sibl = n; while (Getattr(sibl, "sym:previousSibling")) sibl = Getattr(sibl, "sym:previousSibling"); // go all the way up String *protoTypes = NewString(""); do { Printf(protoTypes, "\n\" %s(%s)\\n\"", SwigType_str(Getattr(sibl, "name"), 0), ParmList_protostr(Getattr(sibl, "wrap:parms"))); } while ((sibl = Getattr(sibl, "sym:nextSibling"))); Append(f->code, "fail:\n"); Printf(f->code, "SWIG_SetErrorMsg(PyExc_NotImplementedError," "\"Wrong number of arguments for overloaded function '%s'.\\n\"" "\n\" Possible C/C++ prototypes are:\\n\"%s);\n", symname, protoTypes); Append(f->code, "return NULL;\n"); Delete(protoTypes); } Printv(f->code, "}\n", NIL); Wrapper_print(f, f_wrappers); Node *p = Getattr(n, "sym:previousSibling"); add_method(symname, wname, 0, p); /* Create a shadow for this function (if enabled and not in a member function) */ if ((shadow) && (!(shadow & PYSHADOW_MEMBER))) { emitFunctionShadowHelper(n, f_shadow_stubs, symname, 0); } DelWrapper(f); Delete(dispatch); Delete(tmp); Delete(wname); } /* ------------------------------------------------------------ * functionWrapper() * ------------------------------------------------------------ */ const char *get_implicitconv_flag(Node *klass) { int conv = 0; if (klass && GetFlag(klass, "feature:implicitconv")) { conv = 1; } return conv ? "SWIG_POINTER_IMPLICIT_CONV" : "0"; } virtual int functionWrapper(Node *n) { String *name = Getattr(n, "name"); String *iname = Getattr(n, "sym:name"); SwigType *d = Getattr(n, "type"); ParmList *l = Getattr(n, "parms"); int director_method = 0; Parm *p; int i; char source[64]; Wrapper *f; String *parse_args; String *arglist; String *get_pointers; String *cleanup; String *outarg; String *kwargs; String *tm; String *overname = 0; int num_required; int num_arguments; int varargs = 0; int allow_kwargs = check_kwargs(n); String *nodeType = Getattr(n, "nodeType"); int constructor = (!Cmp(nodeType, "constructor")); int destructor = (!Cmp(nodeType, "destructor")); String *storage = Getattr(n, "storage"); /* Only the first constructor is handled as init method. Others constructor can be emitted via %rename */ int handled_as_init = 0; if (!have_constructor && (constructor || Getattr(n, "handled_as_constructor")) && ((shadow & PYSHADOW_MEMBER))) { String *nname = Getattr(n, "sym:name"); String *sname = Getattr(getCurrentClass(), "sym:name"); String *cname = Swig_name_construct(sname); handled_as_init = (Strcmp(nname, sname) == 0) || (Strcmp(nname, cname) == 0); Delete(cname); } if (Getattr(n, "sym:overloaded")) { overname = Getattr(n, "sym:overname"); } else { if (!addSymbol(iname, n)) return SWIG_ERROR; } f = NewWrapper(); parse_args = NewString(""); arglist = NewString(""); get_pointers = NewString(""); cleanup = NewString(""); outarg = NewString(""); kwargs = NewString(""); int allow_thread = threads_enable(n); Wrapper_add_local(f, "resultobj", "PyObject *resultobj = 0"); // Emit all of the local variables for holding arguments. emit_parameter_variables(l, f); /* Attach the standard typemaps */ emit_attach_parmmaps(l, f); Setattr(n, "wrap:parms", l); /* Get number of required and total arguments */ num_arguments = emit_num_arguments(l); num_required = emit_num_required(l); if (((num_arguments == 0) && (num_required == 0)) || ((num_arguments == 1) && (num_required == 1) && Getattr(l, "self"))) allow_kwargs = 0; varargs = emit_isvarargs(l); String *wname = Swig_name_wrapper(iname); if (overname) { Append(wname, overname); } if (!allow_kwargs || Getattr(n, "sym:overloaded")) { if (!varargs) { Printv(f->def, "SWIGINTERN PyObject *", wname, "(PyObject *SWIGUNUSEDPARM(self), PyObject *args) {", NIL); } else { Printv(f->def, "SWIGINTERN PyObject *", wname, "__varargs__", "(PyObject *SWIGUNUSEDPARM(self), PyObject *args, PyObject *varargs) {", NIL); } if (allow_kwargs) { Swig_warning(WARN_LANG_OVERLOAD_KEYWORD, input_file, line_number, "Can't use keyword arguments with overloaded functions (%s).\n", Swig_name_decl(n)); allow_kwargs = 0; } } else { if (varargs) { Swig_warning(WARN_LANG_VARARGS_KEYWORD, input_file, line_number, "Can't wrap varargs with keyword arguments enabled\n"); varargs = 0; } Printv(f->def, "SWIGINTERN PyObject *", wname, "(PyObject *SWIGUNUSEDPARM(self), PyObject *args, PyObject *kwargs) {", NIL); } if (!allow_kwargs) { Append(parse_args, " if (!PyArg_ParseTuple(args,(char *)\""); } else { Append(parse_args, " if (!PyArg_ParseTupleAndKeywords(args,kwargs,(char *)\""); Append(arglist, ",kwnames"); } int funpack = modernargs && fastunpack && !varargs && !allow_kwargs; int noargs = funpack && (num_required == 0 && num_arguments == 0); int onearg = funpack && (num_required == 1 && num_arguments == 1); /* Generate code for argument marshalling */ if (funpack) { if (overname) { if (aliasobj0) { Append(f->code, "#define obj0 (swig_obj[0])\n"); } } else if (num_arguments) { sprintf(source, "PyObject *swig_obj[%d]", num_arguments); Wrapper_add_localv(f, "swig_obj", source, NIL); if (aliasobj0) { Append(f->code, "#define obj0 (swig_obj[0])\n"); } } } if (constructor && num_arguments == 1 && num_required == 1) { if (Cmp(storage, "explicit") == 0) { Node *parent = Swig_methodclass(n); if (GetFlag(parent, "feature:implicitconv")) { String *desc = NewStringf("SWIGTYPE%s", SwigType_manglestr(Getattr(n, "type"))); Printf(f->code, "if (SWIG_CheckImplicit(%s)) SWIG_fail;\n", desc); Delete(desc); } } } int use_parse = 0; Append(kwargs, "{"); for (i = 0, p = l; i < num_arguments; i++) { while (checkAttribute(p, "tmap:in:numinputs", "0")) { p = Getattr(p, "tmap:in:next"); } SwigType *pt = Getattr(p, "type"); String *pn = Getattr(p, "name"); String *ln = Getattr(p, "lname"); if (funpack) { sprintf(source, "swig_obj[%d]", i); } else { sprintf(source, "obj%d", i); } Putc(',', arglist); if (i == num_required) Putc('|', parse_args); /* Optional argument separator */ /* Keyword argument handling */ if (allow_kwargs) { if (Len(pn)) { String *tmp = 0; String *name = pn; if (!Getattr(p,"hidden")) { name = tmp = Swig_name_make(p, 0, pn, 0, 0); } Printf(kwargs, "(char *) \"%s\",", name); if (tmp) Delete(tmp); } else { Printf(kwargs, "(char *)\"arg%d\",", i + 1); } } /* Look for an input typemap */ if ((tm = Getattr(p, "tmap:in"))) { String *parse = Getattr(p, "tmap:in:parse"); if (!parse) { if (funpack) { Replaceall(tm, "$self", "swig_obj[0]"); } else { Replaceall(tm, "$self", "obj0"); } Replaceall(tm, "$source", source); Replaceall(tm, "$target", ln); Replaceall(tm, "$input", source); Setattr(p, "emit:input", source); /* Save the location of the object */ if (Getattr(p, "wrap:disown") || (Getattr(p, "tmap:in:disown"))) { Replaceall(tm, "$disown", "SWIG_POINTER_DISOWN"); } else { Replaceall(tm, "$disown", "0"); } if (Getattr(p, "tmap:in:implicitconv")) { const char *convflag = "0"; if (!Getattr(p,"hidden")) { SwigType *ptype = Getattr(p, "type"); convflag = get_implicitconv_flag(classLookup(ptype)); } Replaceall(tm, "$implicitconv", convflag); Setattr(p, "implicitconv", convflag); } Putc('O', parse_args); if (!funpack) { Wrapper_add_localv(f, source, "PyObject *", source, "= 0", NIL); Printf(arglist, "&%s", source); } if (i >= num_required) Printv(get_pointers, "if (", source, ") {\n", NIL); Printv(get_pointers, tm, "\n", NIL); if (i >= num_required) Printv(get_pointers, "}\n", NIL); } else { use_parse = 1; Append(parse_args, parse); Printf(arglist, "&%s", ln); } p = Getattr(p, "tmap:in:next"); continue; } else { Swig_warning(WARN_TYPEMAP_IN_UNDEF, input_file, line_number, "Unable to use type %s as a function argument.\n", SwigType_str(pt, 0)); break; } } /* finish argument marshalling */ Append(kwargs, " NULL }"); if (allow_kwargs) { Printv(f->locals, " char * kwnames[] = ", kwargs, ";\n", NIL); } if (use_parse || allow_kwargs || !modernargs) { Printf(parse_args, ":%s\"", iname); Printv(parse_args, arglist, ")) SWIG_fail;\n", NIL); funpack = 0; } else { Clear(parse_args); if (funpack) { Clear(f->def); if (overname) { if (noargs) { Printv(f->def, "SWIGINTERN PyObject *", wname, "(PyObject *SWIGUNUSEDPARM(self), int nobjs, PyObject **SWIGUNUSEDPARM(swig_obj)) {", NIL); } else { Printv(f->def, "SWIGINTERN PyObject *", wname, "(PyObject *SWIGUNUSEDPARM(self), int nobjs, PyObject **swig_obj) {", NIL); } Printf(parse_args, "if ((nobjs < %d) || (nobjs > %d)) SWIG_fail;\n", num_required, num_arguments); } else { if (noargs) { Printv(f->def, "SWIGINTERN PyObject *", wname, "(PyObject *SWIGUNUSEDPARM(self), PyObject *args) {", NIL); } else { Printv(f->def, "SWIGINTERN PyObject *", wname, "(PyObject *SWIGUNUSEDPARM(self), PyObject *args) {", NIL); } if (onearg) { Printf(parse_args, "if (!args) SWIG_fail;\n"); Printf(parse_args, "swig_obj[0] = args;\n"); } else if (!noargs) { Printf(parse_args, "if (!SWIG_Python_UnpackTuple(args,\"%s\",%d,%d,swig_obj)) SWIG_fail;\n", iname, num_required, num_arguments); } else if (noargs) { Printf(parse_args, "if (!SWIG_Python_UnpackTuple(args,\"%s\",%d,%d,0)) SWIG_fail;\n", iname, num_required, num_arguments); } } } else { Printf(parse_args, "if(!PyArg_UnpackTuple(args,(char *)\"%s\",%d,%d", iname, num_required, num_arguments); Printv(parse_args, arglist, ")) SWIG_fail;\n", NIL); } } /* Now piece together the first part of the wrapper function */ Printv(f->code, parse_args, get_pointers, NIL); /* Check for trailing varargs */ if (varargs) { if (p && (tm = Getattr(p, "tmap:in"))) { Replaceall(tm, "$input", "varargs"); Printv(f->code, tm, "\n", NIL); } } /* Insert constraint checking code */ for (p = l; p;) { if ((tm = Getattr(p, "tmap:check"))) { Replaceall(tm, "$target", Getattr(p, "lname")); Printv(f->code, tm, "\n", NIL); p = Getattr(p, "tmap:check:next"); } else { p = nextSibling(p); } } /* Insert cleanup code */ for (p = l; p;) { // if (!checkAttribute(p,"tmap:in:numinputs","0") && !Getattr(p,"tmap:in:parse")) { if (!Getattr(p, "tmap:in:parse") && (tm = Getattr(p, "tmap:freearg"))) { if (Getattr(p, "tmap:freearg:implicitconv")) { const char *convflag = "0"; if (!Getattr(p,"hidden")) { SwigType *ptype = Getattr(p, "type"); convflag = get_implicitconv_flag(classLookup(ptype)); } if (strcmp(convflag, "0") == 0) { tm = 0; } } if (tm && (Len(tm) != 0)) { Replaceall(tm, "$source", Getattr(p, "lname")); Printv(cleanup, tm, "\n", NIL); } p = Getattr(p, "tmap:freearg:next"); } else { p = nextSibling(p); } } /* Insert argument output code */ for (p = l; p;) { if ((tm = Getattr(p, "tmap:argout"))) { Replaceall(tm, "$source", Getattr(p, "lname")); Replaceall(tm, "$target", "resultobj"); Replaceall(tm, "$arg", Getattr(p, "emit:input")); Replaceall(tm, "$input", Getattr(p, "emit:input")); Printv(outarg, tm, "\n", NIL); p = Getattr(p, "tmap:argout:next"); } else { p = nextSibling(p); } } /* if the object is a director, and the method call originated from its * underlying python object, resolve the call by going up the c++ * inheritance chain. otherwise try to resolve the method in python. * without this check an infinite loop is set up between the director and * shadow class method calls. */ // NOTE: this code should only be inserted if this class is the // base class of a director class. however, in general we haven't // yet analyzed all classes derived from this one to see if they are // directors. furthermore, this class may be used as the base of // a director class defined in a completely different module at a // later time, so this test must be included whether or not directorbase // is true. we do skip this code if directors have not been enabled // at the command line to preserve source-level compatibility with // non-polymorphic swig. also, if this wrapper is for a smart-pointer // method, there is no need to perform the test since the calling object // (the smart-pointer) and the director object (the "pointee") are // distinct. director_method = is_member_director(n) && !is_smart_pointer() && !destructor; if (director_method) { Wrapper_add_local(f, "director", "Swig::Director *director = 0"); Append(f->code, "director = SWIG_DIRECTOR_CAST(arg1);\n"); if (dirprot_mode() && !is_public(n)) { Printf(f->code, "if (!director || !(director->swig_get_inner(\"%s\"))) {\n", name); Printf(f->code, "SWIG_SetErrorMsg(PyExc_RuntimeError,\"accessing protected member %s\");\n", name); Append(f->code, "SWIG_fail;\n"); Append(f->code, "}\n"); } Wrapper_add_local(f, "upcall", "bool upcall = false"); if (funpack) { Append(f->code, "upcall = (director && (director->swig_get_self()==swig_obj[0]));\n"); } else { Append(f->code, "upcall = (director && (director->swig_get_self()==obj0));\n"); } } /* Emit the function call */ if (director_method) { Append(f->code, "try {\n"); } else { if (allow_thread) { Append(f->code, "{\n"); thread_begin_allow(n, f->code); } } Setattr(n, "wrap:name", wname); Swig_director_emit_dynamic_cast(n, f); String *actioncode = emit_action(n); if (director_method) { Append(actioncode, "} catch (Swig::DirectorException&) {\n"); Append(actioncode, " SWIG_fail;\n"); Append(actioncode, "}\n"); } else { if (allow_thread) { thread_end_allow(n, actioncode); Append(actioncode, "}\n"); } } /* This part below still needs cleanup */ /* Return the function value */ if ((tm = Swig_typemap_lookup_out("out", n, "result", f, actioncode))) { if (funpack) { Replaceall(tm, "$self", "swig_obj[0]"); } else { Replaceall(tm, "$self", "obj0"); } Replaceall(tm, "$source", "result"); Replaceall(tm, "$target", "resultobj"); Replaceall(tm, "$result", "resultobj"); if (handled_as_init) { Replaceall(tm, "$owner", "SWIG_POINTER_NEW"); } else { if (GetFlag(n, "feature:new")) { Replaceall(tm, "$owner", "SWIG_POINTER_OWN"); } else { Replaceall(tm, "$owner", "0"); } } // FIXME: this will not try to unwrap directors returned as non-director // base class pointers! /* New addition to unwrap director return values so that the original * python object is returned instead. */ #if 1 int unwrap = 0; String *decl = Getattr(n, "decl"); int is_pointer = SwigType_ispointer_return(decl); int is_reference = SwigType_isreference_return(decl); if (is_pointer || is_reference) { String *type = Getattr(n, "type"); //Node *classNode = Swig_methodclass(n); //Node *module = Getattr(classNode, "module"); Node *parent = Swig_methodclass(n); Node *module = Getattr(parent, "module"); Node *target = Swig_directormap(module, type); if (target) unwrap = 1; } if (unwrap) { Wrapper_add_local(f, "director", "Swig::Director *director = 0"); Append(f->code, "director = SWIG_DIRECTOR_CAST(result);\n"); Append(f->code, "if (director) {\n"); Append(f->code, " resultobj = director->swig_get_self();\n"); Append(f->code, " Py_INCREF(resultobj);\n"); Append(f->code, "} else {\n"); Printf(f->code, "%s\n", tm); Append(f->code, "}\n"); } else { Printf(f->code, "%s\n", tm); } #else Printf(f->code, "%s\n", tm); #endif Delete(tm); } else { Swig_warning(WARN_TYPEMAP_OUT_UNDEF, input_file, line_number, "Unable to use return type %s in function %s.\n", SwigType_str(d, 0), name); } emit_return_variable(n, d, f); /* Output argument output code */ Printv(f->code, outarg, NIL); /* Output cleanup code */ int need_cleanup = Len(cleanup) != 0; if (need_cleanup) { Printv(f->code, cleanup, NIL); } /* Look to see if there is any newfree cleanup code */ if (GetFlag(n, "feature:new")) { if ((tm = Swig_typemap_lookup("newfree", n, "result", 0))) { Replaceall(tm, "$source", "result"); Printf(f->code, "%s\n", tm); Delete(tm); } } /* See if there is any return cleanup code */ if ((tm = Swig_typemap_lookup("ret", n, "result", 0))) { Replaceall(tm, "$source", "result"); Printf(f->code, "%s\n", tm); Delete(tm); } if (director_method) { if ((tm = Swig_typemap_lookup("directorfree", n, "result", 0))) { Replaceall(tm, "$input", "result"); Replaceall(tm, "$result", "resultobj"); Printf(f->code, "%s\n", tm); Delete(tm); } } Append(f->code, " return resultobj;\n"); /* Error handling code */ Append(f->code, "fail:\n"); if (need_cleanup) { Printv(f->code, cleanup, NIL); } Printv(f->code, " return NULL;\n", NIL); if (funpack) { if (aliasobj0) { Append(f->code, "#if defined(obj0)\n"); Append(f->code, "#undef obj0\n"); Append(f->code, "#endif\n"); } } Append(f->code, "}\n"); /* Substitute the cleanup code */ Replaceall(f->code, "$cleanup", cleanup); /* Substitute the function name */ Replaceall(f->code, "$symname", iname); Replaceall(f->code, "$result", "resultobj"); if (funpack) { Replaceall(f->code, "$self", "swig_obj[0]"); } else { Replaceall(f->code, "$self", "obj0"); } /* Dump the function out */ Wrapper_print(f, f_wrappers); /* If varargs. Need to emit a varargs stub */ if (varargs) { DelWrapper(f); f = NewWrapper(); Printv(f->def, "SWIGINTERN PyObject *", wname, "(PyObject *self, PyObject *args) {", NIL); Wrapper_add_local(f, "resultobj", "PyObject *resultobj"); Wrapper_add_local(f, "varargs", "PyObject *varargs"); Wrapper_add_local(f, "newargs", "PyObject *newargs"); Printf(f->code, "newargs = PyTuple_GetSlice(args,0,%d);\n", num_arguments); Printf(f->code, "varargs = PyTuple_GetSlice(args,%d,PyTuple_Size(args)+1);\n", num_arguments); Printf(f->code, "resultobj = %s__varargs__(self,newargs,varargs);\n", wname); Append(f->code, "Py_XDECREF(newargs);\n"); Append(f->code, "Py_XDECREF(varargs);\n"); Append(f->code, "return resultobj;\n"); Append(f->code, "}\n"); Wrapper_print(f, f_wrappers); } /* Now register the function with the interpreter. */ if (!Getattr(n, "sym:overloaded")) { add_method(iname, wname, allow_kwargs, n, funpack, num_required, num_arguments); /* Create a shadow for this function (if enabled and not in a member function) */ if ((shadow) && (!(shadow & PYSHADOW_MEMBER))) { emitFunctionShadowHelper(n, in_class ? f_shadow_stubs : f_shadow, iname, allow_kwargs); } } else { if (!Getattr(n, "sym:nextSibling")) { dispatchFunction(n, funpack); } } Delete(parse_args); Delete(arglist); Delete(get_pointers); Delete(cleanup); Delete(outarg); Delete(kwargs); Delete(wname); DelWrapper(f); return SWIG_OK; } /* ------------------------------------------------------------ * variableWrapper() * ------------------------------------------------------------ */ virtual int variableWrapper(Node *n) { String *name = Getattr(n, "name"); String *iname = Getattr(n, "sym:name"); SwigType *t = Getattr(n, "type"); static int have_globals = 0; String *tm; Wrapper *getf, *setf; if (!addSymbol(iname, n)) return SWIG_ERROR; getf = NewWrapper(); setf = NewWrapper(); /* If this is our first call, add the globals variable to the Python dictionary. */ if (!have_globals) { Printf(f_init, "\t PyDict_SetItemString(d,(char*)\"%s\", SWIG_globals());\n", global_name); have_globals = 1; if ((shadow) && (!(shadow & PYSHADOW_MEMBER))) { Printf(f_shadow_stubs, "%s = %s.%s\n", global_name, module, global_name); } } int assignable = is_assignable(n); if ((shadow) && !assignable) { if (!in_class) { Printf(f_shadow_stubs, "%s = %s.%s\n", iname, global_name, iname); } } String *getname = Swig_name_get(iname); String *setname = Swig_name_set(iname); String *vargetname = NewStringf("Swig_var_%s", getname); String *varsetname = NewStringf("Swig_var_%s", setname); /* Create a function for setting the value of the variable */ if (assignable) { Setattr(n, "wrap:name", varsetname); Printf(setf->def, "SWIGINTERN int %s(PyObject *_val) {", varsetname); if ((tm = Swig_typemap_lookup("varin", n, name, 0))) { Replaceall(tm, "$source", "_val"); Replaceall(tm, "$target", name); Replaceall(tm, "$input", "_val"); if (Getattr(n, "tmap:varin:implicitconv")) { Replaceall(tm, "$implicitconv", get_implicitconv_flag(n)); } emit_action_code(n, setf->code, tm); Delete(tm); } else { Swig_warning(WARN_TYPEMAP_VARIN_UNDEF, input_file, line_number, "Unable to set variable of type %s.\n", SwigType_str(t, 0)); } Printv(setf->code, " return 0;\n", NULL); Append(setf->code, "fail:\n"); Printv(setf->code, " return 1;\n", NULL); } else { /* Is a readonly variable. Issue an error */ if (CPlusPlus) { Printf(setf->def, "SWIGINTERN int %s(PyObject *) {", varsetname); } else { Printf(setf->def, "SWIGINTERN int %s(PyObject *_val SWIGUNUSED) {", varsetname); } Printv(setf->code, " SWIG_Error(SWIG_AttributeError,\"Variable ", iname, " is read-only.\");\n", " return 1;\n", NIL); } Append(setf->code, "}\n"); Wrapper_print(setf, f_wrappers); /* Create a function for getting the value of a variable */ Setattr(n, "wrap:name", vargetname); int addfail = 0; Printf(getf->def, "SWIGINTERN PyObject *%s(void) {", vargetname); Wrapper_add_local(getf, "pyobj", "PyObject *pyobj = 0"); if ((tm = Swig_typemap_lookup("varout", n, name, 0))) { Replaceall(tm, "$source", name); Replaceall(tm, "$target", "pyobj"); Replaceall(tm, "$result", "pyobj"); addfail = emit_action_code(n, getf->code, tm); Delete(tm); } else { Swig_warning(WARN_TYPEMAP_VAROUT_UNDEF, input_file, line_number, "Unable to read variable of type %s\n", SwigType_str(t, 0)); } Append(getf->code, " return pyobj;\n"); if (addfail) { Append(getf->code, "fail:\n"); Append(getf->code, " return NULL;\n"); } Append(getf->code, "}\n"); Wrapper_print(getf, f_wrappers); /* Now add this to the variable linking mechanism */ Printf(f_init, "\t SWIG_addvarlink(SWIG_globals(),(char*)\"%s\",%s, %s);\n", iname, vargetname, varsetname); Delete(vargetname); Delete(varsetname); Delete(getname); Delete(setname); DelWrapper(setf); DelWrapper(getf); return SWIG_OK; } /* ------------------------------------------------------------ * constantWrapper() * ------------------------------------------------------------ */ virtual int constantWrapper(Node *n) { String *name = Getattr(n, "name"); String *iname = Getattr(n, "sym:name"); SwigType *type = Getattr(n, "type"); String *rawval = Getattr(n, "rawval"); String *value = rawval ? rawval : Getattr(n, "value"); String *tm; int have_tm = 0; if (!addSymbol(iname, n)) return SWIG_ERROR; /* Special hook for member pointer */ if (SwigType_type(type) == T_MPOINTER) { String *wname = Swig_name_wrapper(iname); String *str = SwigType_str(type, wname); Printf(f_header, "static %s = %s;\n", str, value); Delete(str); value = wname; } if ((tm = Swig_typemap_lookup("consttab", n, name, 0))) { Replaceall(tm, "$source", value); Replaceall(tm, "$target", name); Replaceall(tm, "$value", value); Printf(const_code, "%s,\n", tm); Delete(tm); have_tm = 1; } if ((tm = Swig_typemap_lookup("constcode", n, name, 0))) { Replaceall(tm, "$source", value); Replaceall(tm, "$target", name); Replaceall(tm, "$value", value); Printf(f_init, "%s\n", tm); Delete(tm); have_tm = 1; } if (!have_tm) { Swig_warning(WARN_TYPEMAP_CONST_UNDEF, input_file, line_number, "Unsupported constant value.\n"); return SWIG_NOWRAP; } if ((shadow) && (!(shadow & PYSHADOW_MEMBER))) { if (!in_class) { Printv(f_shadow, iname, " = ", module, ".", iname, "\n", NIL); } else { if (!(Getattr(n, "feature:python:callback"))) { Printv(f_shadow_stubs, iname, " = ", module, ".", iname, "\n", NIL); } } } return SWIG_OK; } /* ------------------------------------------------------------ * nativeWrapper() * ------------------------------------------------------------ */ virtual int nativeWrapper(Node *n) { String *name = Getattr(n, "sym:name"); String *wrapname = Getattr(n, "wrap:name"); if (!addSymbol(wrapname, n)) return SWIG_ERROR; add_method(name, wrapname, 0); if (shadow) { Printv(f_shadow_stubs, name, " = ", module, ".", name, "\n", NIL); } return SWIG_OK; } /* ---------------------------------------------------------------------------- * BEGIN C++ Director Class modifications * ------------------------------------------------------------------------- */ /* C++/Python polymorphism demo code, copyright (C) 2002 Mark Rose * * TODO * * Move some boilerplate code generation to Swig_...() functions. * */ /* --------------------------------------------------------------- * classDirectorMethod() * * Emit a virtual director method to pass a method call on to the * underlying Python object. * ** Moved down due to gcc-2.96 internal error ** * --------------------------------------------------------------- */ int classDirectorMethods(Node *n); int classDirectorMethod(Node *n, Node *parent, String *super); /* ------------------------------------------------------------ * classDirectorConstructor() * ------------------------------------------------------------ */ int classDirectorConstructor(Node *n) { Node *parent = Getattr(n, "parentNode"); String *sub = NewString(""); String *decl = Getattr(n, "decl"); String *supername = Swig_class_name(parent); String *classname = NewString(""); Printf(classname, "SwigDirector_%s", supername); /* insert self parameter */ Parm *p; ParmList *superparms = Getattr(n, "parms"); ParmList *parms = CopyParmList(superparms); String *type = NewString("PyObject"); SwigType_add_pointer(type); p = NewParm(type, NewString("self")); set_nextSibling(p, parms); parms = p; if (!Getattr(n, "defaultargs")) { /* constructor */ { Wrapper *w = NewWrapper(); String *call; String *basetype = Getattr(parent, "classtype"); String *target = Swig_method_decl(0, decl, classname, parms, 0, 0); call = Swig_csuperclass_call(0, basetype, superparms); Printf(w->def, "%s::%s: %s, Swig::Director(self) { \n", classname, target, call); Printf(w->def, " SWIG_DIRECTOR_RGTR((%s *)this, this); \n", basetype); Append(w->def, "}\n"); Delete(target); Wrapper_print(w, f_directors); Delete(call); DelWrapper(w); } /* constructor header */ { String *target = Swig_method_decl(0, decl, classname, parms, 0, 1); Printf(f_directors_h, " %s;\n", target); Delete(target); } } Delete(sub); Delete(classname); Delete(supername); Delete(parms); return Language::classDirectorConstructor(n); } /* ------------------------------------------------------------ * classDirectorDefaultConstructor() * ------------------------------------------------------------ */ int classDirectorDefaultConstructor(Node *n) { String *classname = Swig_class_name(n); { Node *parent = Swig_methodclass(n); String *basetype = Getattr(parent, "classtype"); Wrapper *w = NewWrapper(); Printf(w->def, "SwigDirector_%s::SwigDirector_%s(PyObject* self) : Swig::Director(self) { \n", classname, classname); Printf(w->def, " SWIG_DIRECTOR_RGTR((%s *)this, this); \n", basetype); Append(w->def, "}\n"); Wrapper_print(w, f_directors); DelWrapper(w); } Printf(f_directors_h, " SwigDirector_%s(PyObject* self);\n", classname); Delete(classname); return Language::classDirectorDefaultConstructor(n); } /* ------------------------------------------------------------ * classDirectorInit() * ------------------------------------------------------------ */ int classDirectorInit(Node *n) { String *declaration = Swig_director_declaration(n); Printf(f_directors_h, "\n"); Printf(f_directors_h, "%s\n", declaration); Printf(f_directors_h, "public:\n"); Delete(declaration); return Language::classDirectorInit(n); } /* ------------------------------------------------------------ * classDirectorEnd() * ------------------------------------------------------------ */ int classDirectorEnd(Node *n) { String *classname = Swig_class_name(n); if (dirprot_mode()) { /* This implementation uses a std::map. It should be possible to rewrite it using a more elegant way, like copying the Java approach for the 'override' array. But for now, this seems to be the least intrusive way. */ Printf(f_directors_h, "\n\n"); Printf(f_directors_h, "/* Internal Director utilities */\n"); Printf(f_directors_h, "public:\n"); Printf(f_directors_h, " bool swig_get_inner(const char* name) const {\n"); Printf(f_directors_h, " std::map::const_iterator iv = inner.find(name);\n"); Printf(f_directors_h, " return (iv != inner.end() ? iv->second : false);\n"); Printf(f_directors_h, " }\n\n"); Printf(f_directors_h, " void swig_set_inner(const char* name, bool val) const\n"); Printf(f_directors_h, " { inner[name] = val;}\n\n"); Printf(f_directors_h, "private:\n"); Printf(f_directors_h, " mutable std::map inner;\n"); } if (director_method_index) { Printf(f_directors_h, "\n\n"); Printf(f_directors_h, "#if defined(SWIG_PYTHON_DIRECTOR_VTABLE)\n"); Printf(f_directors_h, "/* VTable implementation */\n"); Printf(f_directors_h, " PyObject *swig_get_method(size_t method_index, const char *method_name) const {\n"); Printf(f_directors_h, " PyObject *method = vtable[method_index];\n"); Printf(f_directors_h, " if (!method) {\n"); Printf(f_directors_h, " swig::SwigVar_PyObject name = SWIG_Python_str_FromChar(method_name);\n"); Printf(f_directors_h, " method = PyObject_GetAttr(swig_get_self(), name);\n"); Printf(f_directors_h, " if (method == NULL) {\n"); Printf(f_directors_h, " std::string msg = \"Method in class %s doesn't exist, undefined \";\n", classname); Printf(f_directors_h, " msg += method_name;\n"); Printf(f_directors_h, " Swig::DirectorMethodException::raise(msg.c_str());\n"); Printf(f_directors_h, " }\n"); Printf(f_directors_h, " vtable[method_index] = method;\n"); Printf(f_directors_h, " };\n"); Printf(f_directors_h, " return method;\n"); Printf(f_directors_h, " }\n"); Printf(f_directors_h, "private:\n"); Printf(f_directors_h, " mutable swig::SwigVar_PyObject vtable[%d];\n", director_method_index); Printf(f_directors_h, "#endif\n\n"); } Printf(f_directors_h, "};\n\n"); return Language::classDirectorEnd(n); } /* ------------------------------------------------------------ * classDirectorDisown() * ------------------------------------------------------------ */ int classDirectorDisown(Node *n) { int result; int oldshadow = shadow; /* disable shadowing */ if (shadow) shadow = shadow | PYSHADOW_MEMBER; result = Language::classDirectorDisown(n); shadow = oldshadow; if (shadow) { String *symname = Getattr(n, "sym:name"); String *mrename = Swig_name_disown(symname); //Getattr(n, "name")); Printv(f_shadow, tab4, "def __disown__(self):\n", NIL); #ifdef USE_THISOWN Printv(f_shadow, tab8, "self.thisown = 0\n", NIL); #else Printv(f_shadow, tab8, "self.this.disown()\n", NIL); #endif Printv(f_shadow, tab8, module, ".", mrename, "(self)\n", NIL); Printv(f_shadow, tab8, "return weakref_proxy(self)\n", NIL); Delete(mrename); } return result; } /* ---------------------------------------------------------------------------- * END of C++ Director Class modifications * ------------------------------------------------------------------------- */ /* ------------------------------------------------------------ * classDeclaration() * ------------------------------------------------------------ */ virtual int classDeclaration(Node *n) { if (shadow && !Getattr(n, "feature:onlychildren")) { Node *mod = Getattr(n, "module"); if (mod) { String *importname = NewString(""); String *modname = Getattr(mod, "name"); if (Strcmp(modname, mainmodule) != 0) { // check if the module has a package option Node *options = Getattr(mod, "options"); String *pkg = options ? Getattr(options, "package") : 0; if (pkg && (!package || Strcmp(pkg, package) != 0)) { Printf(importname, "%s.", pkg); } Printf(importname, "%s.", modname); } Append(importname, Getattr(n, "sym:name")); Setattr(n, "python:proxy", importname); } } return Language::classDeclaration(n); } /* ------------------------------------------------------------ * classHandler() * ------------------------------------------------------------ */ virtual int classHandler(Node *n) { int oldclassic = classic; int oldmodern = modern; File *f_shadow_file = f_shadow; if (shadow) { /* Create new strings for building up a wrapper function */ have_constructor = 0; have_repr = 0; if (GetFlag(n, "feature:classic")) { classic = 1; modern = 0; } if (GetFlag(n, "feature:modern")) { classic = 0; modern = 1; } if (GetFlag(n, "feature:exceptionclass")) { classic = 1; modern = 0; } shadow_indent = (String *) tab4; class_name = Getattr(n, "sym:name"); real_classname = Getattr(n, "name"); if (!addSymbol(class_name, n)) return SWIG_ERROR; /* Handle inheritance */ String *base_class = NewString(""); List *baselist = Getattr(n, "bases"); if (baselist && Len(baselist)) { Iterator b; b = First(baselist); while (b.item) { String *bname = Getattr(b.item, "python:proxy"); bool ignore = GetFlag(b.item, "feature:ignore") ? true : false; if (!bname || ignore) { if (!bname && !ignore) { Swig_warning(WARN_TYPE_UNDEFINED_CLASS, input_file, line_number, "Base class '%s' ignored - unknown module name for base. Either import the appropriate module interface file or specify the name of the module in the %%import directive.\n", SwigType_namestr(Getattr(b.item, "name"))); } b = Next(b); continue; } Printv(base_class, bname, NIL); b = Next(b); if (b.item) { Putc(',', base_class); } } } /* dealing with abstract base class */ String *abcs = Getattr(n, "feature:python:abc"); if (py3 && abcs) { if (Len(base_class)) { Putc(',', base_class); } Printv(base_class, abcs, NIL); } Printv(f_shadow, "class ", class_name, NIL); if (Len(base_class)) { Printf(f_shadow, "(%s)", base_class); } else { if (!classic) { Printf(f_shadow, modern ? "(object)" : "(_object)"); } if (GetFlag(n, "feature:exceptionclass") ) { Printf(f_shadow, "(Exception)"); } } Printf(f_shadow, ":\n"); if (have_docstring(n)) { String *str = docstring(n, AUTODOC_CLASS, tab4); if (str != NULL && Len(str)) Printv(f_shadow, tab4, str, "\n", NIL); } if (!modern) { Printv(f_shadow, tab4, "__swig_setmethods__ = {}\n", NIL); if (Len(base_class)) { Printf(f_shadow, "%sfor _s in [%s]: __swig_setmethods__.update(getattr(_s,'__swig_setmethods__',{}))\n", tab4, base_class); } if (!GetFlag(n, "feature:python:nondynamic")) { Printv(f_shadow, tab4, "__setattr__ = lambda self, name, value: _swig_setattr(self, ", class_name, ", name, value)\n", NIL); } else { Printv(f_shadow, tab4, "__setattr__ = lambda self, name, value: _swig_setattr_nondynamic(self, ", class_name, ", name, value)\n", NIL); } Printv(f_shadow, tab4, "__swig_getmethods__ = {}\n", NIL); if (Len(base_class)) { Printf(f_shadow, "%sfor _s in [%s]: __swig_getmethods__.update(getattr(_s,'__swig_getmethods__',{}))\n", tab4, base_class); } Printv(f_shadow, tab4, "__getattr__ = lambda self, name: _swig_getattr(self, ", class_name, ", name)\n", NIL); } else { Printv(f_shadow, tab4, "thisown = _swig_property(lambda x: x.this.own(), ", "lambda x, v: x.this.own(v), doc='The membership flag')\n", NIL); /* Add static attribute */ if (GetFlag(n, "feature:python:nondynamic")) { Printv(f_shadow_file, tab4, "__setattr__ = _swig_setattr_nondynamic_method(object.__setattr__)\n", tab4, "class __metaclass__(type):\n", tab4, tab4, "__setattr__ = _swig_setattr_nondynamic_method(type.__setattr__)\n", NIL); } } } /* Emit all of the members */ in_class = 1; /* Overide the shadow file so we can capture its methods */ f_shadow = NewString(""); Language::classHandler(n); in_class = 0; /* Complete the class */ if (shadow) { /* Generate a class registration function */ { String *smartptr = Getattr(n, "feature:smartptr"); // Replace storing a pointer to underlying class with a smart pointer (intended for use with non-intrusive smart pointers) SwigType *smart = 0; if (smartptr) { SwigType *cpt = Swig_cparse_type(smartptr); if (cpt) { smart = SwigType_typedef_resolve_all(cpt); Delete(cpt); } else { // TODO: report line number of where the feature comes from Swig_error(Getfile(n), Getline(n), "Invalid type (%s) in 'smartptr' feature for class %s.\n", smartptr, real_classname); } } SwigType *ct = Copy(smart ? smart : real_classname); SwigType_add_pointer(ct); SwigType *realct = Copy(real_classname); SwigType_add_pointer(realct); SwigType_remember(realct); Printv(f_wrappers, "SWIGINTERN PyObject *", class_name, "_swigregister(PyObject *SWIGUNUSEDPARM(self), PyObject *args) {\n", NIL); Printv(f_wrappers, " PyObject *obj;\n", NIL); if (modernargs) { if (fastunpack) { Printv(f_wrappers, " if (!SWIG_Python_UnpackTuple(args,(char*)\"swigregister\", 1, 1,&obj)) return NULL;\n", NIL); } else { Printv(f_wrappers, " if (!PyArg_UnpackTuple(args,(char*)\"swigregister\", 1, 1,&obj)) return NULL;\n", NIL); } } else { Printv(f_wrappers, " if (!PyArg_ParseTuple(args,(char*)\"O:swigregister\", &obj)) return NULL;\n", NIL); } Printv(f_wrappers, " SWIG_TypeNewClientData(SWIGTYPE", SwigType_manglestr(ct), ", SWIG_NewClientData(obj));\n", " return SWIG_Py_Void();\n", "}\n\n", NIL); String *cname = NewStringf("%s_swigregister", class_name); add_method(cname, cname, 0); Delete(smart); Delete(cname); Delete(ct); Delete(realct); } if (!have_constructor) { Printv(f_shadow_file, tab4, "def __init__(self, *args, **kwargs): raise AttributeError(\"", "No constructor defined", (Getattr(n, "abstract") ? " - class is abstract" : ""), "\")\n", NIL); } else if (fastinit) { Printv(f_wrappers, "SWIGINTERN PyObject *", class_name, "_swiginit(PyObject *SWIGUNUSEDPARM(self), PyObject *args) {\n", NIL); Printv(f_wrappers, " return SWIG_Python_InitShadowInstance(args);\n", "}\n\n", NIL); String *cname = NewStringf("%s_swiginit", class_name); add_method(cname, cname, 0); Delete(cname); } if (!have_repr) { /* Supply a repr method for this class */ String *rname = SwigType_namestr(real_classname); if (new_repr) { Printv(f_shadow_file, tab4, "__repr__ = _swig_repr\n", NIL); } else { Printv(f_shadow_file, tab4, "def __repr__(self):\n", tab8, "return \"\" % (self.this,)\n", NIL); } Delete(rname); } /* Now emit methods */ Printv(f_shadow_file, f_shadow, NIL); /* Now the Ptr class */ if (classptr) { Printv(f_shadow_file, "\nclass ", class_name, "Ptr(", class_name, "):\n", tab4, "def __init__(self, this):\n", NIL); if (!modern) { Printv(f_shadow_file, tab8, "try: self.this.append(this)\n", tab8, "except: self.this = this\n", tab8, "self.this.own(0)\n", tab8, "self.__class__ = ", class_name, "\n\n", NIL); } else { Printv(f_shadow_file, tab8, "try: self.this.append(this)\n", tab8, "except: self.this = this\n", tab8, "self.this.own(0)\n", tab8, "self.__class__ = ", class_name, "\n\n", NIL); } } if (fastproxy) { List *shadow_list = Getattr(n, "shadow_methods"); for (int i = 0; i < Len(shadow_list); ++i) { String *symname = Getitem(shadow_list, i); Printf(f_shadow_file, "%s.%s = new_instancemethod(%s.%s,None,%s)\n", class_name, symname, module, Swig_name_member(class_name, symname), class_name); } } Printf(f_shadow_file, "%s_swigregister = %s.%s_swigregister\n", class_name, module, class_name); Printf(f_shadow_file, "%s_swigregister(%s)\n", class_name, class_name); shadow_indent = 0; Printf(f_shadow_file, "%s\n", f_shadow_stubs); Clear(f_shadow_stubs); } classic = oldclassic; modern = oldmodern; /* Restore shadow file back to original version */ Delete(f_shadow); f_shadow = f_shadow_file; return SWIG_OK; } /* ------------------------------------------------------------ * functionHandler() - Mainly overloaded for callback handling * ------------------------------------------------------------ */ virtual int functionHandler(Node *n) { String *pcb = GetFlagAttr(n, "feature:python:callback"); if (pcb) { if (Strcmp(pcb, "1") == 0) { SetFlagAttr(n, "feature:callback", "%s_cb_ptr"); } else { SetFlagAttr(n, "feature:callback", pcb); } autodoc_l dlevel = autodoc_level(Getattr(n, "feature:autodoc")); if (dlevel != NO_AUTODOC && dlevel > TYPES_AUTODOC) { Setattr(n, "feature:autodoc", "1"); } } return Language::functionHandler(n); } /* ------------------------------------------------------------ * memberfunctionHandler() * ------------------------------------------------------------ */ virtual int memberfunctionHandler(Node *n) { String *symname = Getattr(n, "sym:name"); int oldshadow; /* Create the default member function */ oldshadow = shadow; /* Disable shadowing when wrapping member functions */ if (shadow) shadow = shadow | PYSHADOW_MEMBER; Language::memberfunctionHandler(n); shadow = oldshadow; if (!Getattr(n, "sym:nextSibling")) { if (shadow) { int allow_kwargs = (check_kwargs(n) && !Getattr(n, "sym:overloaded")) ? 1 : 0; int fproxy = fastproxy; if (Strcmp(symname, "__repr__") == 0) { have_repr = 1; } if (Getattr(n, "feature:shadow")) { String *pycode = pythoncode(Getattr(n, "feature:shadow"), tab4); String *pyaction = NewStringf("%s.%s", module, Swig_name_member(class_name, symname)); Replaceall(pycode, "$action", pyaction); Delete(pyaction); Printv(f_shadow, pycode, "\n", NIL); Delete(pycode); fproxy = 0; } else { String *parms = make_pyParmList(n, true, false, allow_kwargs); String *callParms = make_pyParmList(n, true, true, allow_kwargs); if (!have_addtofunc(n)) { if (!fastproxy || olddefs) { Printv(f_shadow, tab4, "def ", symname, "(", parms, ")", returnTypeAnnotation(n), ":", NIL); Printv(f_shadow, " return ", funcCall(Swig_name_member(class_name, symname), callParms), "\n", NIL); } } else { Printv(f_shadow, tab4, "def ", symname, "(",parms , ")", returnTypeAnnotation(n), ":", NIL); Printv(f_shadow, "\n", NIL); if (have_docstring(n)) Printv(f_shadow, tab8, docstring(n, AUTODOC_METHOD, tab8), "\n", NIL); if (have_pythonprepend(n)) { fproxy = 0; Printv(f_shadow, pythoncode(pythonprepend(n), tab8), "\n", NIL); } if (have_pythonappend(n)) { fproxy = 0; Printv(f_shadow, tab8, "val = ", funcCall(Swig_name_member(class_name, symname), callParms), "\n", NIL); Printv(f_shadow, pythoncode(pythonappend(n), tab8), "\n", NIL); Printv(f_shadow, tab8, "return val\n\n", NIL); } else { Printv(f_shadow, tab8, "return ", funcCall(Swig_name_member(class_name, symname), callParms), "\n\n", NIL); } } } if (fproxy) { List *shadow_list = Getattr(getCurrentClass(), "shadow_methods"); if (!shadow_list) { shadow_list = NewList(); Setattr(getCurrentClass(), "shadow_methods", shadow_list); Delete(shadow_list); } Append(shadow_list, symname); } } } return SWIG_OK; } /* ------------------------------------------------------------ * staticmemberfunctionHandler() * ------------------------------------------------------------ */ virtual int staticmemberfunctionHandler(Node *n) { String *symname = Getattr(n, "sym:name"); Language::staticmemberfunctionHandler(n); if (Getattr(n, "sym:nextSibling")) { return SWIG_OK; } if (shadow) { if (!classic && !Getattr(n, "feature:python:callback") && have_addtofunc(n)) { int kw = (check_kwargs(n) && !Getattr(n, "sym:overloaded")) ? 1 : 0; String *parms = make_pyParmList(n, false, false, kw); String *callParms = make_pyParmList(n, false, true, kw); Printv(f_shadow, tab4, "def ", symname, "(", parms, ")", returnTypeAnnotation(n), ":\n", NIL); if (have_docstring(n)) Printv(f_shadow, tab8, docstring(n, AUTODOC_STATICFUNC, tab8), "\n", NIL); if (have_pythonprepend(n)) Printv(f_shadow, pythoncode(pythonprepend(n), tab8), "\n", NIL); if (have_pythonappend(n)) { Printv(f_shadow, tab8, "val = ", funcCall(Swig_name_member(class_name, symname), callParms), "\n", NIL); Printv(f_shadow, pythoncode(pythonappend(n), tab8), "\n", NIL); Printv(f_shadow, tab8, "return val\n\n", NIL); } else { Printv(f_shadow, tab8, "return ", funcCall(Swig_name_member(class_name, symname), callParms), "\n\n", NIL); } Printv(f_shadow, tab4, modern ? "" : "if _newclass:", symname, " = staticmethod(", symname, ")\n", NIL); if (!modern) { Printv(f_shadow, tab4, "__swig_getmethods__[\"", symname, "\"] = lambda x: ", symname, "\n", NIL); } } else { if (!modern) { Printv(f_shadow, tab4, "__swig_getmethods__[\"", symname, "\"] = lambda x: ", module, ".", Swig_name_member(class_name, symname), "\n", NIL); } if (!classic) { Printv(f_shadow, tab4, modern ? "" : "if _newclass:", symname, " = staticmethod(", module, ".", Swig_name_member(class_name, symname), ")\n", NIL); } } } return SWIG_OK; } /* ------------------------------------------------------------ * constructorDeclaration() * ------------------------------------------------------------ */ virtual int constructorHandler(Node *n) { String *symname = Getattr(n, "sym:name"); int oldshadow = shadow; int use_director = Swig_directorclass(n); /* * If we're wrapping the constructor of a C++ director class, prepend a new parameter * to receive the scripting language object (e.g. 'self') * */ Swig_save("python:constructorHandler", n, "parms", NIL); if (use_director) { Parm *parms = Getattr(n, "parms"); Parm *self; String *name = NewString("self"); String *type = NewString("PyObject"); SwigType_add_pointer(type); self = NewParm(type, name); Delete(type); Delete(name); Setattr(self, "lname", "O"); if (parms) set_nextSibling(self, parms); Setattr(n, "parms", self); Setattr(n, "wrap:self", "1"); Setattr(n, "hidden", "1"); Delete(self); } if (shadow) shadow = shadow | PYSHADOW_MEMBER; Language::constructorHandler(n); shadow = oldshadow; Delattr(n, "wrap:self"); Swig_restore(n); if (!Getattr(n, "sym:nextSibling")) { if (shadow) { int allow_kwargs = (check_kwargs(n) && (!Getattr(n, "sym:overloaded"))) ? 1 : 0; int handled_as_init = 0; if (!have_constructor) { String *nname = Getattr(n, "sym:name"); String *sname = Getattr(getCurrentClass(), "sym:name"); String *cname = Swig_name_construct(sname); handled_as_init = (Strcmp(nname, sname) == 0) || (Strcmp(nname, cname) == 0); Delete(cname); } if (!have_constructor && handled_as_init) { if (Getattr(n, "feature:shadow")) { String *pycode = pythoncode(Getattr(n, "feature:shadow"), tab4); String *pyaction = NewStringf("%s.%s", module, Swig_name_construct(symname)); Replaceall(pycode, "$action", pyaction); Delete(pyaction); Printv(f_shadow, pycode, "\n", NIL); Delete(pycode); } else { String *pass_self = NewString(""); Node *parent = Swig_methodclass(n); String *classname = Swig_class_name(parent); String *rclassname = Swig_class_name(getCurrentClass()); assert(rclassname); String *parms = make_pyParmList(n, true, false, allow_kwargs); /* Pass 'self' only if using director */ String *callParms = make_pyParmList(n, false, true, allow_kwargs); if (use_director) { Insert(callParms, 0, "_self, "); Printv(pass_self, tab8, NIL); Printf(pass_self, "if self.__class__ == %s:\n", classname); //Printv(pass_self, tab8, tab4, "args = (None,) + args\n", tab8, "else:\n", tab8, tab4, "args = (self,) + args\n", NIL); Printv(pass_self, tab8, tab4, "_self = None\n", tab8, "else:\n", tab8, tab4, "_self = self\n", NIL); } Printv(f_shadow, tab4, "def __init__(", parms, ")", returnTypeAnnotation(n), ": \n", NIL); if (have_docstring(n)) Printv(f_shadow, tab8, docstring(n, AUTODOC_CTOR, tab8), "\n", NIL); if (have_pythonprepend(n)) Printv(f_shadow, pythoncode(pythonprepend(n), tab8), "\n", NIL); Printv(f_shadow, pass_self, NIL); if (fastinit) { Printv(f_shadow, tab8, module, ".", class_name, "_swiginit(self,", funcCall(Swig_name_construct(symname), callParms), ")\n", NIL); } else { Printv(f_shadow, tab8, "this = ", funcCall(Swig_name_construct(symname), callParms), "\n", tab8, "try: self.this.append(this)\n", tab8, "except: self.this = this\n", NIL); } if (have_pythonappend(n)) Printv(f_shadow, pythoncode(pythonappend(n), tab8), "\n\n", NIL); Delete(pass_self); } have_constructor = 1; } else { /* Hmmm. We seem to be creating a different constructor. We're just going to create a function for it. */ if (Getattr(n, "feature:shadow")) { String *pycode = pythoncode(Getattr(n, "feature:shadow"), ""); String *pyaction = NewStringf("%s.%s", module, Swig_name_construct(symname)); Replaceall(pycode, "$action", pyaction); Delete(pyaction); Printv(f_shadow_stubs, pycode, "\n", NIL); Delete(pycode); } else { String *parms = make_pyParmList(n, true, false, allow_kwargs); String *callParms = make_pyParmList(n, true, true, allow_kwargs); Printv(f_shadow_stubs, "\ndef ", symname, "(", parms, ")", returnTypeAnnotation(n), ":\n", NIL); if (have_docstring(n)) Printv(f_shadow_stubs, tab4, docstring(n, AUTODOC_CTOR, tab4), "\n", NIL); if (have_pythonprepend(n)) Printv(f_shadow_stubs, pythoncode(pythonprepend(n), tab4), "\n", NIL); Printv(f_shadow_stubs, tab4, "val = ", funcCall(Swig_name_construct(symname), callParms), "\n", NIL); #ifdef USE_THISOWN Printv(f_shadow_stubs, tab4, "val.thisown = 1\n", NIL); #endif if (have_pythonappend(n)) Printv(f_shadow_stubs, pythoncode(pythonappend(n), tab4), "\n", NIL); Printv(f_shadow_stubs, tab4, "return val\n", NIL); } } } } return SWIG_OK; } /* ------------------------------------------------------------ * destructorHandler() * ------------------------------------------------------------ */ virtual int destructorHandler(Node *n) { String *symname = Getattr(n, "sym:name"); int oldshadow = shadow; if (shadow) shadow = shadow | PYSHADOW_MEMBER; //Setattr(n,"emit:dealloc","1"); Language::destructorHandler(n); shadow = oldshadow; if (shadow) { if (Getattr(n, "feature:shadow")) { String *pycode = pythoncode(Getattr(n, "feature:shadow"), tab4); String *pyaction = NewStringf("%s.%s", module, Swig_name_destroy(symname)); Replaceall(pycode, "$action", pyaction); Delete(pyaction); Printv(f_shadow, pycode, "\n", NIL); Delete(pycode); } else { Printv(f_shadow, tab4, "__swig_destroy__ = ", module, ".", Swig_name_destroy(symname), "\n", NIL); if (!have_pythonprepend(n) && !have_pythonappend(n)) { if (proxydel) { Printv(f_shadow, tab4, "__del__ = lambda self : None;\n", NIL); } return SWIG_OK; } Printv(f_shadow, tab4, "def __del__(self):\n", NIL); if (have_docstring(n)) Printv(f_shadow, tab8, docstring(n, AUTODOC_DTOR, tab8), "\n", NIL); if (have_pythonprepend(n)) Printv(f_shadow, pythoncode(pythonprepend(n), tab8), "\n", NIL); #ifdef USE_THISOWN Printv(f_shadow, tab8, "try:\n", NIL); Printv(f_shadow, tab8, tab4, "if self.thisown: ", module, ".", Swig_name_destroy(symname), "(self)\n", NIL); Printv(f_shadow, tab8, "except: pass\n", NIL); #else #endif if (have_pythonappend(n)) Printv(f_shadow, pythoncode(pythonappend(n), tab8), "\n", NIL); Printv(f_shadow, tab8, "pass\n", NIL); Printv(f_shadow, "\n", NIL); } } return SWIG_OK; } /* ------------------------------------------------------------ * membervariableHandler() * ------------------------------------------------------------ */ virtual int membervariableHandler(Node *n) { String *symname = Getattr(n, "sym:name"); int oldshadow = shadow; if (shadow) shadow = shadow | PYSHADOW_MEMBER; Language::membervariableHandler(n); shadow = oldshadow; if (shadow) { String *mname = Swig_name_member(class_name, symname); String *setname = Swig_name_set(mname); String *getname = Swig_name_get(mname); if (shadow) { int assignable = is_assignable(n); if (!modern) { if (assignable) { Printv(f_shadow, tab4, "__swig_setmethods__[\"", symname, "\"] = ", module, ".", setname, "\n", NIL); } Printv(f_shadow, tab4, "__swig_getmethods__[\"", symname, "\"] = ", module, ".", getname, "\n", NIL); } if (!classic) { if (!assignable) { Printv(f_shadow, tab4, modern ? "" : "if _newclass:", symname, " = _swig_property(", module, ".", getname, ")\n", NIL); } else { Printv(f_shadow, tab4, modern ? "" : "if _newclass:", symname, " = _swig_property(", module, ".", getname, ", ", module, ".", setname, ")\n", NIL); } } } Delete(mname); Delete(setname); Delete(getname); } return SWIG_OK; } /* ------------------------------------------------------------ * staticmembervariableHandler() * ------------------------------------------------------------ */ virtual int staticmembervariableHandler(Node *n) { Language::staticmembervariableHandler(n); if (shadow && !GetFlag(n, "wrappedasconstant")) { String *symname = Getattr(n, "sym:name"); if (GetFlag(n, "hasconsttype")) { String *mname = Swig_name_member(class_name, symname); Printf(f_shadow_stubs, "%s.%s = %s.%s.%s\n", class_name, symname, module, global_name, mname); Delete(mname); } else { String *mname = Swig_name_member(class_name, symname); String *getname = Swig_name_get(mname); String *wrapgetname = Swig_name_wrapper(getname); String *vargetname = NewStringf("Swig_var_%s", getname); String *setname = Swig_name_set(mname); String *wrapsetname = Swig_name_wrapper(setname); String *varsetname = NewStringf("Swig_var_%s", setname); Wrapper *f = NewWrapper(); Printv(f->def, "SWIGINTERN PyObject *", wrapgetname, "(PyObject *SWIGUNUSEDPARM(self), PyObject *SWIGUNUSEDPARM(args)) {", NIL); Printv(f->code, " return ", vargetname, "();\n", NIL); Append(f->code, "}\n"); add_method(getname, wrapgetname, 0); Wrapper_print(f, f_wrappers); DelWrapper(f); int assignable = is_assignable(n); if (assignable) { Wrapper *f = NewWrapper(); Printv(f->def, "SWIGINTERN PyObject *", wrapsetname, "(PyObject *SWIGUNUSEDPARM(self), PyObject *args) {", NIL); Wrapper_add_local(f, "value", "PyObject *value"); Wrapper_add_local(f, "res", "int res"); Append(f->code, "if (!PyArg_ParseTuple(args,(char *)\"O:set\",&value)) return NULL;\n"); Printv(f->code, "res = ", varsetname, "(value);\n", NIL); Append(f->code, "return !res ? SWIG_Py_Void() : NULL;\n"); Append(f->code, "}\n"); Wrapper_print(f, f_wrappers); add_method(setname, wrapsetname, 0); DelWrapper(f); } if (!modern) { if (assignable) { Printv(f_shadow, tab4, "__swig_setmethods__[\"", symname, "\"] = ", module, ".", setname, "\n", NIL); } Printv(f_shadow, tab4, "__swig_getmethods__[\"", symname, "\"] = ", module, ".", getname, "\n", NIL); } if (!classic) { if (!assignable) { Printv(f_shadow, tab4, modern ? "" : "if _newclass:", symname, " = _swig_property(", module, ".", getname, ")\n", NIL); } else { Printv(f_shadow, tab4, modern ? "" : "if _newclass:", symname, " = _swig_property(", module, ".", getname, ", ", module, ".", setname, ")\n", NIL); } } Delete(mname); Delete(getname); Delete(wrapgetname); Delete(vargetname); Delete(setname); Delete(wrapsetname); Delete(varsetname); } } return SWIG_OK; } /* ------------------------------------------------------------ * memberconstantHandler() * ------------------------------------------------------------ */ virtual int memberconstantHandler(Node *n) { String *symname = Getattr(n, "sym:name"); int oldshadow = shadow; if (shadow) shadow = shadow | PYSHADOW_MEMBER; Language::memberconstantHandler(n); shadow = oldshadow; if (shadow) { Printv(f_shadow, tab4, symname, " = ", module, ".", Swig_name_member(class_name, symname), "\n", NIL); } return SWIG_OK; } /* ------------------------------------------------------------ * insertDirective() * * Hook for %insert directive. We're going to look for special %shadow inserts * as a special case so we can do indenting correctly * ------------------------------------------------------------ */ virtual int insertDirective(Node *n) { String *code = Getattr(n, "code"); String *section = Getattr(n, "section"); if ((!ImportMode) && ((Cmp(section, "python") == 0) || (Cmp(section, "shadow") == 0))) { if (shadow) { String *pycode = pythoncode(code, shadow_indent); Printv(f_shadow, pycode, NIL); Delete(pycode); } } else { Language::insertDirective(n); } return SWIG_OK; } virtual String *runtimeCode() { String *s = NewString(""); String *shead = Swig_include_sys("pyhead.swg"); if (!shead) { Printf(stderr, "*** Unable to open 'pyhead.swg'\n"); } else { Append(s, shead); Delete(shead); } String *serrors = Swig_include_sys("pyerrors.swg"); if (!serrors) { Printf(stderr, "*** Unable to open 'pyerrors.swg'\n"); } else { Append(s, serrors); Delete(serrors); } String *sthread = Swig_include_sys("pythreads.swg"); if (!sthread) { Printf(stderr, "*** Unable to open 'pythreads.swg'\n"); } else { Append(s, sthread); Delete(sthread); } String *sapi = Swig_include_sys("pyapi.swg"); if (!sapi) { Printf(stderr, "*** Unable to open 'pyapi.swg'\n"); } else { Append(s, sapi); Delete(sapi); } String *srun = Swig_include_sys("pyrun.swg"); if (!srun) { Printf(stderr, "*** Unable to open 'pyrun.swg'\n"); } else { Append(s, srun); Delete(srun); } return s; } virtual String *defaultExternalRuntimeFilename() { return NewString("swigpyrun.h"); } }; /* --------------------------------------------------------------- * classDirectorMethod() * * Emit a virtual director method to pass a method call on to the * underlying Python object. * * ** Moved it here due to internal error on gcc-2.96 ** * --------------------------------------------------------------- */ int PYTHON::classDirectorMethods(Node *n) { director_method_index = 0; return Language::classDirectorMethods(n); } int PYTHON::classDirectorMethod(Node *n, Node *parent, String *super) { int is_void = 0; int is_pointer = 0; String *decl; String *type; String *name; String *classname; String *c_classname = Getattr(parent, "name"); String *declaration; ParmList *l; Wrapper *w; String *tm; String *wrap_args = NewString(""); String *return_type; String *value = Getattr(n, "value"); String *storage = Getattr(n, "storage"); bool pure_virtual = false; int status = SWIG_OK; int idx; bool ignored_method = GetFlag(n, "feature:ignore") ? true : false; if (Cmp(storage, "virtual") == 0) { if (Cmp(value, "0") == 0) { pure_virtual = true; } } classname = Getattr(parent, "sym:name"); type = Getattr(n, "type"); name = Getattr(n, "name"); w = NewWrapper(); declaration = NewString(""); /* determine if the method returns a pointer */ decl = Getattr(n, "decl"); is_pointer = SwigType_ispointer_return(decl); is_void = (!Cmp(type, "void") && !is_pointer); /* form complete return type */ return_type = Copy(type); { SwigType *t = Copy(decl); SwigType *f = 0; f = SwigType_pop_function(t); SwigType_push(return_type, t); Delete(f); Delete(t); } /* virtual method definition */ l = Getattr(n, "parms"); String *target; String *pclassname = NewStringf("SwigDirector_%s", classname); String *qualified_name = NewStringf("%s::%s", pclassname, name); SwigType *rtype = Getattr(n, "conversion_operator") ? 0 : type; target = Swig_method_decl(rtype, decl, qualified_name, l, 0, 0); Printf(w->def, "%s", target); Delete(qualified_name); Delete(target); /* header declaration */ target = Swig_method_decl(rtype, decl, name, l, 0, 1); Printf(declaration, " virtual %s", target); Delete(target); // Get any exception classes in the throws typemap ParmList *throw_parm_list = 0; if ((throw_parm_list = Getattr(n, "throws")) || Getattr(n, "throw")) { Parm *p; int gencomma = 0; Append(w->def, " throw("); Append(declaration, " throw("); if (throw_parm_list) Swig_typemap_attach_parms("throws", throw_parm_list, 0); for (p = throw_parm_list; p; p = nextSibling(p)) { if ((tm = Getattr(p, "tmap:throws"))) { if (gencomma++) { Append(w->def, ", "); Append(declaration, ", "); } String *str = SwigType_str(Getattr(p, "type"), 0); Append(w->def, str); Append(declaration, str); Delete(str); } } Append(w->def, ")"); Append(declaration, ")"); } Append(w->def, " {"); Append(declaration, ";\n"); /* declare method return value * if the return value is a reference or const reference, a specialized typemap must * handle it, including declaration of c_result ($result). */ if (!is_void) { if (!(ignored_method && !pure_virtual)) { String *cres = SwigType_lstr(return_type, "c_result"); Printf(w->code, "%s;\n", cres); Delete(cres); } } if (ignored_method) { if (!pure_virtual) { if (!is_void) Printf(w->code, "return "); String *super_call = Swig_method_call(super, l); Printf(w->code, "%s;\n", super_call); Delete(super_call); } else { Printf(w->code, "Swig::DirectorPureVirtualException::raise(\"Attempted to invoke pure virtual method %s::%s\");\n", SwigType_namestr(c_classname), SwigType_namestr(name)); } } else { /* attach typemaps to arguments (C/C++ -> Python) */ String *arglist = NewString(""); String *parse_args = NewString(""); /* remove the wrapper 'w' since it was producing spurious temps */ Swig_typemap_attach_parms("in", l, 0); Swig_typemap_attach_parms("directorin", l, 0); Swig_typemap_attach_parms("directorargout", l, w); Parm *p; char source[256]; int outputs = 0; if (!is_void) outputs++; /* build argument list and type conversion string */ idx = 0; p = l; int use_parse = 0; while (p != NULL) { if (checkAttribute(p, "tmap:in:numinputs", "0")) { p = Getattr(p, "tmap:in:next"); continue; } /* old style? caused segfaults without the p!=0 check in the for() condition, and seems dangerous in the while loop as well. while (Getattr(p, "tmap:ignore")) { p = Getattr(p, "tmap:ignore:next"); } */ if (Getattr(p, "tmap:directorargout") != 0) outputs++; String *pname = Getattr(p, "name"); String *ptype = Getattr(p, "type"); Putc(',', arglist); if ((tm = Getattr(p, "tmap:directorin")) != 0) { String *parse = Getattr(p, "tmap:directorin:parse"); if (!parse) { sprintf(source, "obj%d", idx++); String *input = NewString(source); Replaceall(tm, "$input", input); Delete(input); Replaceall(tm, "$owner", "0"); /* Wrapper_add_localv(w, source, "swig::SwigVar_PyObject", source, "= 0", NIL); */ Printv(wrap_args, "swig::SwigVar_PyObject ", source, ";\n", NIL); Printv(wrap_args, tm, "\n", NIL); Printv(arglist, "(PyObject *)", source, NIL); Putc('O', parse_args); } else { use_parse = 1; Append(parse_args, parse); Replaceall(tm, "$input", pname); Replaceall(tm, "$owner", "0"); if (Len(tm) == 0) Append(tm, pname); Append(arglist, tm); } p = Getattr(p, "tmap:directorin:next"); continue; } else if (Cmp(ptype, "void")) { /* special handling for pointers to other C++ director classes. * ideally this would be left to a typemap, but there is currently no * way to selectively apply the dynamic_cast<> to classes that have * directors. in other words, the type "SwigDirector_$1_lname" only exists * for classes with directors. we avoid the problem here by checking * module.wrap::directormap, but it's not clear how to get a typemap to * do something similar. perhaps a new default typemap (in addition * to SWIGTYPE) called DIRECTORTYPE? */ if (SwigType_ispointer(ptype) || SwigType_isreference(ptype)) { Node *module = Getattr(parent, "module"); Node *target = Swig_directormap(module, ptype); sprintf(source, "obj%d", idx++); String *nonconst = 0; /* strip pointer/reference --- should move to Swig/stype.c */ String *nptype = NewString(Char(ptype) + 2); /* name as pointer */ String *ppname = Copy(pname); if (SwigType_isreference(ptype)) { Insert(ppname, 0, "&"); } /* if necessary, cast away const since Python doesn't support it! */ if (SwigType_isconst(nptype)) { nonconst = NewStringf("nc_tmp_%s", pname); String *nonconst_i = NewStringf("= const_cast<%s>(%s)", SwigType_lstr(ptype, 0), ppname); Wrapper_add_localv(w, nonconst, SwigType_lstr(ptype, 0), nonconst, nonconst_i, NIL); Delete(nonconst_i); Swig_warning(WARN_LANG_DISCARD_CONST, input_file, line_number, "Target language argument '%s' discards const in director method %s::%s.\n", SwigType_str(ptype, pname), SwigType_namestr(c_classname), SwigType_namestr(name)); } else { nonconst = Copy(ppname); } Delete(nptype); Delete(ppname); String *mangle = SwigType_manglestr(ptype); if (target) { String *director = NewStringf("director_%s", mangle); Wrapper_add_localv(w, director, "Swig::Director *", director, "= 0", NIL); Wrapper_add_localv(w, source, "swig::SwigVar_PyObject", source, "= 0", NIL); Printf(wrap_args, "%s = SWIG_DIRECTOR_CAST(%s);\n", director, nonconst); Printf(wrap_args, "if (!%s) {\n", director); Printf(wrap_args, "%s = SWIG_NewPointerObj(%s, SWIGTYPE%s, 0);\n", source, nonconst, mangle); Append(wrap_args, "} else {\n"); Printf(wrap_args, "%s = %s->swig_get_self();\n", source, director); Printf(wrap_args, "Py_INCREF((PyObject *)%s);\n", source); Append(wrap_args, "}\n"); Delete(director); Printv(arglist, source, NIL); } else { Wrapper_add_localv(w, source, "swig::SwigVar_PyObject", source, "= 0", NIL); Printf(wrap_args, "%s = SWIG_NewPointerObj(%s, SWIGTYPE%s, 0);\n", source, nonconst, mangle); //Printf(wrap_args, "%s = SWIG_NewPointerObj(%s, SWIGTYPE_p_%s, 0);\n", // source, nonconst, base); Printv(arglist, source, NIL); } Putc('O', parse_args); Delete(mangle); Delete(nonconst); } else { Swig_warning(WARN_TYPEMAP_DIRECTORIN_UNDEF, input_file, line_number, "Unable to use type %s as a function argument in director method %s::%s (skipping method).\n", SwigType_str(ptype, 0), SwigType_namestr(c_classname), SwigType_namestr(name)); status = SWIG_NOWRAP; break; } } p = nextSibling(p); } /* add the method name as a PyString */ String *pyname = Getattr(n, "sym:name"); int allow_thread = threads_enable(n); if (allow_thread) { thread_begin_block(n, w->code); Append(w->code, "{\n"); } /* wrap complex arguments to PyObjects */ Printv(w->code, wrap_args, NIL); /* pass the method call on to the Python object */ if (dirprot_mode() && !is_public(n)) { Printf(w->code, "swig_set_inner(\"%s\", true);\n", name); } Append(w->code, "if (!swig_get_self()) {\n"); Printf(w->code, " Swig::DirectorException::raise(\"'self' uninitialized, maybe you forgot to call %s.__init__.\");\n", classname); Append(w->code, "}\n"); Append(w->code, "#if defined(SWIG_PYTHON_DIRECTOR_VTABLE)\n"); Printf(w->code, "const size_t swig_method_index = %d;\n", director_method_index++); Printf(w->code, "const char * const swig_method_name = \"%s\";\n", pyname); Append(w->code, "PyObject* method = swig_get_method(swig_method_index, swig_method_name);\n"); if (Len(parse_args) > 0) { if (use_parse || !modernargs) { Printf(w->code, "swig::SwigVar_PyObject result = PyObject_CallFunction(method, (char *)\"(%s)\" %s);\n", parse_args, arglist); } else { Printf(w->code, "swig::SwigVar_PyObject result = PyObject_CallFunctionObjArgs(method %s, NULL);\n", arglist); } } else { if (modernargs) { Append(w->code, "swig::SwigVar_PyObject args = PyTuple_New(0);\n"); Append(w->code, "swig::SwigVar_PyObject result = PyObject_Call(method, (PyObject*) args, NULL);\n"); } else { Printf(w->code, "swig::SwigVar_PyObject result = PyObject_CallFunction(method, NULL, NULL);\n"); } } Append(w->code, "#else\n"); if (Len(parse_args) > 0) { if (use_parse || !modernargs) { Printf(w->code, "swig::SwigVar_PyObject result = PyObject_CallMethod(swig_get_self(), (char *)\"%s\", (char *)\"(%s)\" %s);\n", pyname, parse_args, arglist); } else { Printf(w->code, "swig::SwigVar_PyObject swig_method_name = SWIG_Python_str_FromChar((char *)\"%s\");\n", pyname); Printf(w->code, "swig::SwigVar_PyObject result = PyObject_CallMethodObjArgs(swig_get_self(), (PyObject *) swig_method_name %s, NULL);\n", arglist); } } else { if (!modernargs) { Printf(w->code, "swig::SwigVar_PyObject result = PyObject_CallMethod(swig_get_self(), (char *) \"%s\", NULL);\n", pyname); } else { Printf(w->code, "swig::SwigVar_PyObject swig_method_name = SWIG_Python_str_FromChar((char *)\"%s\");\n", pyname); Append(w->code, "swig::SwigVar_PyObject result = PyObject_CallMethodObjArgs(swig_get_self(), (PyObject *) swig_method_name, NULL);\n"); } } Append(w->code, "#endif\n"); if (dirprot_mode() && !is_public(n)) Printf(w->code, "swig_set_inner(\"%s\", false);\n", name); /* exception handling */ tm = Swig_typemap_lookup("director:except", n, "result", 0); if (!tm) { tm = Getattr(n, "feature:director:except"); if (tm) tm = Copy(tm); } Append(w->code, "if (result == NULL) {\n"); Append(w->code, " PyObject *error = PyErr_Occurred();\n"); if ((tm) && Len(tm) && (Strcmp(tm, "1") != 0)) { Replaceall(tm, "$error", "error"); Printv(w->code, Str(tm), "\n", NIL); } else { Append(w->code, " if (error != NULL) {\n"); Printf(w->code, " Swig::DirectorMethodException::raise(\"Error detected when calling '%s.%s'\");\n", classname, pyname); Append(w->code, " }\n"); } Append(w->code, "}\n"); Delete(tm); /* * Python method may return a simple object, or a tuple. * for in/out aruments, we have to extract the appropriate PyObjects from the tuple, * then marshal everything back to C/C++ (return value and output arguments). * */ /* marshal return value and other outputs (if any) from PyObject to C/C++ type */ String *cleanup = NewString(""); String *outarg = NewString(""); if (outputs > 1) { Wrapper_add_local(w, "output", "PyObject *output"); Append(w->code, "if (!PyTuple_Check(result)) {\n"); Printf(w->code, " Swig::DirectorTypeMismatchException::raise(\"Python method %s.%sfailed to return a tuple.\");\n", classname, pyname); Append(w->code, "}\n"); } idx = 0; /* marshal return value */ if (!is_void) { /* this seems really silly. the node's type excludes * qualifier/pointer/reference markers, which have to be retrieved * from the decl field to construct return_type. but the typemap * lookup routine uses the node's type, so we have to swap in and * out the correct type. it's not just me, similar silliness also * occurs in Language::cDeclaration(). */ Setattr(n, "type", return_type); tm = Swig_typemap_lookup("directorout", n, "result", w); Setattr(n, "type", type); if (tm != 0) { if (outputs > 1) { Printf(w->code, "output = PyTuple_GetItem(result, %d);\n", idx++); Replaceall(tm, "$input", "output"); } else { Replaceall(tm, "$input", "result"); } char temp[24]; sprintf(temp, "%d", idx); Replaceall(tm, "$argnum", temp); /* TODO check this */ if (Getattr(n, "wrap:disown")) { Replaceall(tm, "$disown", "SWIG_POINTER_DISOWN"); } else { Replaceall(tm, "$disown", "0"); } if (Getattr(n, "tmap:directorout:implicitconv")) { Replaceall(tm, "$implicitconv", get_implicitconv_flag(n)); } Replaceall(tm, "$result", "c_result"); Printv(w->code, tm, "\n", NIL); Delete(tm); } else { Swig_warning(WARN_TYPEMAP_DIRECTOROUT_UNDEF, input_file, line_number, "Unable to use return type %s in director method %s::%s (skipping method).\n", SwigType_str(return_type, 0), SwigType_namestr(c_classname), SwigType_namestr(name)); status = SWIG_ERROR; } } /* marshal outputs */ for (p = l; p;) { if ((tm = Getattr(p, "tmap:directorargout")) != 0) { if (outputs > 1) { Printf(w->code, "output = PyTuple_GetItem(result, %d);\n", idx++); Replaceall(tm, "$input", "output"); } else { Replaceall(tm, "$input", "result"); } Replaceall(tm, "$result", Getattr(p, "name")); Printv(w->code, tm, "\n", NIL); p = Getattr(p, "tmap:directorargout:next"); } else { p = nextSibling(p); } } /* any existing helper functions to handle this? */ if (allow_thread) { Append(w->code, "}\n"); thread_end_block(n, w->code); } Delete(parse_args); Delete(arglist); Delete(cleanup); Delete(outarg); } if (!is_void) { if (!(ignored_method && !pure_virtual)) { String *rettype = SwigType_str(return_type, 0); if (!SwigType_isreference(return_type)) { Printf(w->code, "return (%s) c_result;\n", rettype); } else { Printf(w->code, "return (%s) *c_result;\n", rettype); } Delete(rettype); } } Append(w->code, "}\n"); // We expose protected methods via an extra public inline method which makes a straight call to the wrapped class' method String *inline_extra_method = NewString(""); if (dirprot_mode() && !is_public(n) && !pure_virtual) { Printv(inline_extra_method, declaration, NIL); String *extra_method_name = NewStringf("%sSwigPublic", name); Replaceall(inline_extra_method, name, extra_method_name); Replaceall(inline_extra_method, ";\n", " {\n "); if (!is_void) Printf(inline_extra_method, "return "); String *methodcall = Swig_method_call(super, l); Printv(inline_extra_method, methodcall, ";\n }\n", NIL); Delete(methodcall); Delete(extra_method_name); } /* emit the director method */ if (status == SWIG_OK) { if (!Getattr(n, "defaultargs")) { Wrapper_print(w, f_directors); Printv(f_directors_h, declaration, NIL); Printv(f_directors_h, inline_extra_method, NIL); } } /* clean up */ Delete(wrap_args); Delete(return_type); Delete(pclassname); DelWrapper(w); return status; } /* ----------------------------------------------------------------------------- * swig_python() - Instantiate module * ----------------------------------------------------------------------------- */ static Language *new_swig_python() { return new PYTHON(); } extern "C" Language *swig_python(void) { return new_swig_python(); }