13 // Output the namespace-qualified symbol name, including
14 // user namespaces. A prefix for the final component (i.e. the
15 // actual name) can optionally be specified.
17 void cpp_output_name(ostream &file, Symbol *sym, const char *prefix = "");
19 // Output the C++ type, not including the array, including
22 void cpp_output_type(ostream &file, Type *t, bool array, bool is_mutable);
23 void cpp_output_type(ostream &file, CompiledBasicType &t, bool is_mutable);
25 // Output the param's fully-qualified type, a space, and the name
28 void cpp_output_one_param(ostream &file, Param *p, bool is_server,
29 bool is_copy = false);
31 // Each IDL namespace is mapped to a C++ header file,
32 // represented by a CPPFile.
34 class CPPFile : public LangCallback {
41 //// Interface caller-side members:
43 // Outputs the body of the internal _i_<ifacename> struct,
44 // containing a vtable pointer (and definition).
46 void output_internal(Interface *sym);
48 // Outputs the user-visible class wrapper that is used to
49 // allow implicit upcasts.
51 void output_wrapper(Interface *sym);
53 // Output implementations of the cast methods prototyped in the wrapper.
54 // The implementation is delayed to avoid circular dependency problems.
56 void output_casts(Interface *sym);
58 //// Marshalling methods
60 void output_marshall(Struct *sym, int pass);
62 // Output the downcast and implicit upcast methods for
63 // the given interface/superinterface pair.
65 static void wrapper_cast_callback(Interface *iface, void *arg);
66 void output_downcast(Interface *iface, Interface *super);
67 void output_upcast(Interface *iface, Interface *super);
69 static void wrapper_cast_proto_callback(Interface *iface, void *arg);
70 void output_downcast_proto(Interface *iface, Interface *super);
71 void output_upcast_proto(Interface *iface, Interface *super);
73 static void wrapper_method_proto_callback(Interface *iface, void *arg);
74 static void wrapper_method_callback(Interface *iface, void *arg);
76 void output_iface_tbl(Interface *iface);
77 static void tbl_callback(Interface *iface, void *arg);
78 void output_iface_tbl_entry(Interface *iface, Interface *super);
80 static void output_method_ptrs_callback(Interface *iface, void *arg);
81 void output_method_ptrs(Interface *iface);
82 void output_methods(Interface *iface, Interface *super, bool prototype);
83 void output_method_defs(Interface *iface);
85 void output_one_method(Interface *iface, Method *m,
86 bool prototype, bool retval);
87 void output_one_method_ptr(Method *m, Interface *iface);
91 // Output the static const guid[] value, and the IFaceInfo struct.
93 void output_guid(const uint64_t *guid);
94 void output_ifaceinfo(Interface *iface);
96 // Output a datum in the given struct, along with any necessary
97 // padding. Return the offset of the next datum.
99 int output_datum(Struct *ns, Datum *d, int offset);
101 void output_vstruct_info(Struct *sym);
102 void output_vstruct_main(Struct *sym);
103 void output_struct_ctor(Struct *sym, bool extra_vstruct);
104 int output_struct_ctor_rec1(Struct *sym, int num);
105 int output_struct_ctor_rec2(Struct *sym, int num);
107 void output_bf_elem(Datum *d, int pos, int bits, string &prefix);
108 void output_bf(BitField *bf, int bits, int typebits, string &prefix);
110 // Call ns_in on the symbol in order to declare the containing
111 // namespace. Call ns_out when finished. ns_out also takes care
112 // of inserting the extra newline separating declarations. The
113 // "extra" parameter allows extra output passes to have unique
114 // #ifndef names, and should have a trailing underscore.
116 void ns_in(Symbol *sym, const char *extra = "DEF_");
117 void ns_out(Symbol *sym);
119 // As above, but also outputs non-user namespaces (optionally
120 // including "sym" itself).
122 void all_ns_in(Symbol *sym, bool include_self = false,
123 const char *extra = "DEF_");
124 void all_ns_out(Symbol *sym, bool include_self = false);
126 // Output a protective #ifndef/#define block to keep a type
127 // from being declared more than once. Call ifndef_out()
130 void ifndef_in(Symbol *sym, const char *extra = "DEF_");
133 // Return the namespace-qualified symbol name, excluding
134 // user namespaces. This is used when defining a name
135 // which (if it is nested) has been previously forward
136 // declared. A prefix for the final component (i.e. the
137 // actual name) can optionally be specified.
139 String &get_definition_name(Symbol *sym, const char *prefix = "");
141 // Output the _ns declaration of a struct or interface.
142 // If a callback is supplied, it is called inside the
143 // namespace, before any namespace members have been
146 void output_nsdecl_begin(NameSpace *ns);
147 void output_nsdecl_children(NameSpace *ns);
148 void output_nsdecl_end(NameSpace *ns);
149 void output_nsdecl(NameSpace *ns);
151 void output_aliases_and_types(NameSpace *ns);
153 // When a top-level struct or interface is about to be generated,
154 // it is scanned for other types which need to be generated. If the
155 // full definition is needed, it goes on the need_to_declare list;
156 // otherwise, it goes on the need_to_forward_declare list. When
157 // processing the lists, if a node has already been marked as
158 // traversed, it is skipped.
160 // Full declaration is needed for superstructs, superinterfaces,
161 // inline structs (once implemented) used, and typedefs used.
162 // It is also necessary to fully declare any type which contains
163 // a type whose forward declaration is needed, as such types
164 // cannot (as far as I know) be forward-declared.
166 std::list<Symbol *> need_to_declare;
168 // Forward declaration is needed for types used via a pointer only.
170 std::list<Symbol *> need_to_forward_declare;
172 void declare_dependencies(Struct *sym);
173 void declare_dependencies(Interface *iface, bool need_obj_def = false);
174 void declare_type_dependency(Type *t, bool need_obj_def = false);
176 // This is the traversal of the first namespace; any symbol
177 // whose last traversal is at least this has been written to
178 // at least one of the included namespaces (and/or the
179 // current namespace).
183 // The traversal indices are also passed as "arg1" to determine
184 // which pass to generate. Higher numbers are performed first.
187 trav_full = 0, // Full, final output
188 trav_obj_def = 1, // Object struct definition
189 trav_obj_stub = 2, // Object pointer stub,
190 // so it can be used in structs.
191 trav_nsdecl = 3, // _ns declaration
192 trav_forward = 4, // Forward declaration of
193 // structs/interfaces in nsdecl
196 bool pass_needed(Symbol *sym, int pass)
198 return first_traversal > sym->traversed[pass];
201 void output_pass(Symbol *sym, int pass)
203 if (pass_needed(sym, pass)) {
204 sym->traversed[pass] = traversal;
205 sym->output_lang(this, pass);
209 bool do_extra_newline;
213 indent.indent_level++;
214 do_extra_newline = false;
219 indent.indent_level--;
220 do_extra_newline = true;
225 if (do_extra_newline)
228 do_extra_newline = true;
232 CPPFile(UserNameSpace *ns, const char *dir);
235 void output(UserNameSpace *sym, int pass = trav_full, void *arg2 = NULL);
236 void output(Struct *sym, int pass = trav_full, void *arg2 = NULL);
237 void output(Interface *sym, int pass = trav_full, void *arg2 = NULL);
238 void output(BitField *sym, int pass = trav_full, void *arg2 = NULL);
239 void output(Enum *sym, int pass = trav_full, void *arg2 = NULL);
240 void output(BasicType *sym, int pass = trav_full, void *arg2 = NULL);
241 void output(Alias *sym, int pass = trav_full, void *arg2 = NULL);
242 void output(TypeDef *sym, int pass = trav_full, void *arg2 = NULL);
243 void output(Datum *sym, int pass = trav_full, void *arg2 = NULL);
246 class CPPBinding : public Language {
255 void output_root(UserNameSpace *ns, const char *dir);
256 void output_server(UserNameSpace *ns, const char *dir);