interface/cpp_conversion.cc

   1 /*
   2  * Copyright 2018      Sven Verdoolaege
   3  *
   4  * Use of this software is governed by the MIT license
   5  *
   6  * Written by Sven Verdoolaege.
   7  */
   8
   9 #include <stdio.h>
  10 #include <map>
  11 #include <string>
  12
  13 #include "cpp.h"
  14 #include "cpp_conversion.h"
  15
  16 /* Print a function called "function" for converting objects of
  17  * type "name" from the "from" bindings to the "to" bindings.
  18  */
  19 static void convert(const char *name, const char *from, const char *to,
  20         const char *function)
  21 {
  22         printf("%s%s %s(%s%s obj) {\n", to, name, function, from, name);
  23         printf("\t""return %s""manage(obj.copy());\n", to);
  24         printf("}\n");
  25         printf("\n");
  26 }
  27
  28 /* Print functions for converting objects of "clazz"
  29  * between the default and the checked C++ bindings.
  30  *
  31  * The conversion from default to checked is called "check".
  32  * The inverse conversion is called "uncheck".
  33  * For example, to "set", the following two functions are generated:
  34  *
  35  *      checked::set check(set obj) {
  36  *              return checked::manage(obj.copy());
  37  *      }
  38  *
  39  *      set uncheck(checked::set obj) {
  40  *              return manage(obj.copy());
  41  *      }
  42  */
  43 static void print(const isl_class &clazz)
  44 {
  45         string name = cpp_generator::type2cpp(clazz.name);
  46
  47         convert(name.c_str(), "", "checked::", "check");
  48         convert(name.c_str(), "checked::", "", "uncheck");
  49 }
  50
  51 /* Generate conversion functions for converting objects between
  52  * the default and the checked C++ bindings.
  53  * Do this for each exported class.
  54  */
  55 void cpp_conversion_generator::generate()
  56 {
  57         map<string, isl_class>::iterator ci;
  58
  59         printf("namespace isl {\n\n");
  60         for (ci = classes.begin(); ci != classes.end(); ++ci)
  61                 print(ci->second);
  62         printf("} // namespace isl\n");
  63 }