Modules/newmodule.c

   1 /***********************************************************
   2 Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
   3 The Netherlands.
   4
   5                         All Rights Reserved
   6
   7 Permission to use, copy, modify, and distribute this software and its
   8 documentation for any purpose and without fee is hereby granted,
   9 provided that the above copyright notice appear in all copies and that
  10 both that copyright notice and this permission notice appear in
  11 supporting documentation, and that the names of Stichting Mathematisch
  12 Centrum or CWI not be used in advertising or publicity pertaining to
  13 distribution of the software without specific, written prior permission.
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  15 STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
  16 THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
  17 FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
  18 FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  19 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  20 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
  21 OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  22
  23 ******************************************************************/
  24
  25 /* Module new -- create new objects of various types */
  26
  27 #include "allobjects.h"
  28 #include "compile.h"
  29 #include "modsupport.h"
  30
  31 static char new_im_doc[] =
  32 "Create a instance method object from (FUNCTION, INSTANCE, CLASS).";
  33
  34 static object *
  35 new_instancemethod(unused, args)
  36         object* unused;
  37         object* args;
  38 {
  39         object* func;
  40         object* self;
  41         object* classObj;
  42
  43         if (!newgetargs(args, "O!O!O!",
  44                         &Functype, &func,
  45                         &Instancetype, &self,
  46                         &Classtype, &classObj))
  47                 return NULL;
  48         return newinstancemethodobject(func, self, classObj);
  49 }
  50
  51 static char new_function_doc[] =
  52 "Create a function object from (CODE, GLOBALS, [NAME, ARGCOUNT, ARGDEFS]).";
  53
  54 static object *
  55 new_function(unused, args)
  56         object* unused;
  57         object* args;
  58 {
  59         object* code;
  60         object* globals;
  61         object* name = None;
  62         int argcount = -1;
  63         object* argdefs = None;
  64         funcobject* newfunc;
  65
  66         if (!newgetargs(args, "O!O!|SiO!",
  67                         &Codetype, &code,
  68                         &Mappingtype, &globals,
  69                         &name,
  70                         &argcount,
  71                         &Tupletype, &argdefs))
  72                 return NULL;
  73
  74         newfunc = (funcobject *)newfuncobject(code, globals);
  75         if (newfunc == NULL)
  76                 return NULL;
  77
  78         if (name != None) {
  79                 XINCREF(name);
  80                 XDECREF(newfunc->func_name);
  81                 newfunc->func_name = name;
  82         }
  83         newfunc->func_argcount = argcount;
  84         if (argdefs != NULL) {
  85                 XINCREF(argdefs);
  86                 XDECREF(newfunc->func_argdefs);
  87                 newfunc->func_argdefs  = argdefs;
  88         }
  89
  90         return (object *)newfunc;
  91 }
  92
  93 static char new_code_doc[] =
  94 "Create a code object from (CODESTRING, CONSTANTS, NAMES, FILENAME, NAME).";
  95
  96 static object *
  97 new_code(unused, args)
  98         object* unused;
  99         object* args;
 100 {
 101         object* code;
 102         object* consts;
 103         object* names;
 104         object* filename;
 105         object* name;
 106
 107         if (!newgetargs(args, "SO!O!SS",
 108                         &code, &Tupletype, &consts, &Tupletype, &names,
 109                         &filename, &name))
 110                 return NULL;
 111         return (object *)newcodeobject(code, consts, names, filename, name);
 112 }
 113
 114 static char new_module_doc[] =
 115 "Create a module object from (NAME).";
 116
 117 static object *
 118 new_module(unused, args)
 119         object* unused;
 120         object* args;
 121 {
 122         char *name;
 123
 124         if (!newgetargs(args, "s", &name))
 125                 return NULL;
 126         return newmoduleobject(name);
 127 }
 128
 129 static struct methodlist new_methods[] = {
 130         {"instancemethod",      new_instancemethod,     1, new_im_doc},
 131         {"function",            new_function,           1, new_function_doc},
 132         {"code",                new_code,               1, new_code_doc},
 133         {"module",              new_module,             1, new_module_doc},
 134         {NULL,                  NULL}           /* sentinel */
 135 };
 136
 137 char new_doc[] =
 138 "Functions to create new objects used by the interpreter.\n\
 139 \n\
 140 You need to know a great deal about the interpreter to use this!";
 141
 142 void
 143 initnew()
 144 {
 145         initmodule4("new", new_methods, new_doc, (object *)NULL,
 146                     PYTHON_API_VERSION);
 147 }