| /* |
| * Copyright 2018 Sven Verdoolaege |
| * |
| * Use of this software is governed by the MIT license |
| * |
| * Written by Sven Verdoolaege. |
| */ |
| |
| #include <stdio.h> |
| #include <map> |
| #include <string> |
| |
| #include "cpp.h" |
| #include "cpp_conversion.h" |
| |
| /* If "clazz" describes a subclass of a C type, then print code |
| * for converting an object of the class derived from the C type |
| * to the subclass. Do this by first converting this class |
| * to the immediate superclass of the subclass and then converting |
| * from this superclass to the subclass. |
| */ |
| void cpp_conversion_generator::cast(const isl_class &clazz, const char *to) |
| { |
| string name = cpp_generator::type2cpp(clazz); |
| |
| if (!clazz.is_type_subclass()) |
| return; |
| |
| cast(classes[clazz.superclass_name], to); |
| printf(".as<%s%s>()", to, name.c_str()); |
| } |
| |
| /* Print a function called "function" for converting objects of |
| * "clazz" from the "from" bindings to the "to" bindings. |
| * If "clazz" describes a subclass of a C type, then the result |
| * of the conversion between bindings is derived from the C type and |
| * needs to be converted back to the subclass. |
| */ |
| void cpp_conversion_generator::convert(const isl_class &clazz, |
| const char *from, const char *to, const char *function) |
| { |
| string name = cpp_generator::type2cpp(clazz); |
| |
| printf("%s%s %s(%s%s obj) {\n", |
| to, name.c_str(), function, from, name.c_str()); |
| printf("\t""return %s""manage(obj.copy())", to); |
| cast(clazz, to); |
| printf(";\n"); |
| printf("}\n"); |
| printf("\n"); |
| } |
| |
| /* Print functions for converting objects of "clazz" |
| * between the default and the checked C++ bindings. |
| * |
| * The conversion from default to checked is called "check". |
| * The inverse conversion is called "uncheck". |
| * For example, to "set", the following two functions are generated: |
| * |
| * checked::set check(set obj) { |
| * return checked::manage(obj.copy()); |
| * } |
| * |
| * set uncheck(checked::set obj) { |
| * return manage(obj.copy()); |
| * } |
| */ |
| void cpp_conversion_generator::print(const isl_class &clazz) |
| { |
| convert(clazz, "", "checked::", "check"); |
| convert(clazz, "checked::", "", "uncheck"); |
| } |
| |
| /* Generate conversion functions for converting objects between |
| * the default and the checked C++ bindings. |
| * Do this for each exported class. |
| */ |
| void cpp_conversion_generator::generate() |
| { |
| map<string, isl_class>::iterator ci; |
| |
| printf("namespace isl {\n\n"); |
| for (ci = classes.begin(); ci != classes.end(); ++ci) |
| print(ci->second); |
| printf("} // namespace isl\n"); |
| } |