2 # QAPI visitor generator
4 # Copyright IBM, Corp. 2011
7 # Anthony Liguori <aliguori@us.ibm.com>
8 # Michael Roth <mdroth@linux.vnet.ibm.com>
10 # This work is licensed under the terms of the GNU GPLv2.
11 # See the COPYING.LIB file in the top-level directory.
13 from ordereddict import OrderedDict
20 def generate_visit_struct_body(field_prefix, name, members):
22 if (!error_is_set(errp)) {
27 field_prefix = field_prefix + "."
29 Error **errp = &err; /* from outer scope */
31 visit_start_struct(m, NULL, "", "%(name)s", 0, &err);
37 visit_start_struct(m, (void **)obj, "%(name)s", name, sizeof(%(name)s), &err);
48 for argname, argentry, optional, structured in parse_args(members):
51 visit_start_optional(m, obj ? &(*obj)->%(c_prefix)shas_%(c_name)s : NULL, "%(name)s", &err);
52 if (obj && (*obj)->%(prefix)shas_%(c_name)s) {
54 c_prefix=c_var(field_prefix), prefix=field_prefix,
55 c_name=c_var(argname), name=argname)
59 ret += generate_visit_struct_body(field_prefix + argname, argname, argentry)
62 visit_type_%(type)s(m, obj ? &(*obj)->%(c_prefix)s%(c_name)s : NULL, "%(name)s", &err);
64 c_prefix=c_var(field_prefix), prefix=field_prefix,
65 type=type_name(argentry), c_name=c_var(argname),
72 visit_end_optional(m, &err);
78 error_propagate(errp, err);
86 /* Always call end_struct if start_struct succeeded. */
87 visit_end_struct(m, &err);
89 error_propagate(errp, err);
94 def generate_visit_struct(name, members):
97 void visit_type_%(name)s(Visitor *m, %(name)s ** obj, const char *name, Error **errp)
103 ret += generate_visit_struct_body("", name, members)
111 def generate_visit_list(name, members):
114 void visit_type_%(name)sList(Visitor *m, %(name)sList ** obj, const char *name, Error **errp)
116 GenericList *i, **prev = (GenericList **)obj;
119 if (!error_is_set(errp)) {
120 visit_start_list(m, name, &err);
122 for (; (i = visit_next_list(m, prev, &err)) != NULL; prev = &i) {
123 %(name)sList *native_i = (%(name)sList *)i;
124 visit_type_%(name)s(m, &native_i->value, NULL, &err);
126 error_propagate(errp, err);
129 /* Always call end_list if start_list succeeded. */
130 visit_end_list(m, &err);
132 error_propagate(errp, err);
138 def generate_visit_enum(name, members):
141 void visit_type_%(name)s(Visitor *m, %(name)s * obj, const char *name, Error **errp)
143 visit_type_enum(m, (int *)obj, %(name)s_lookup, "%(name)s", name, errp);
148 def generate_visit_union(name, members):
149 ret = generate_visit_enum('%sKind' % name, members.keys())
153 void visit_type_%(name)s(Visitor *m, %(name)s ** obj, const char *name, Error **errp)
157 if (!error_is_set(errp)) {
158 visit_start_struct(m, (void **)obj, "%(name)s", name, sizeof(%(name)s), &err);
161 visit_type_%(name)sKind(m, &(*obj)->kind, "type", &err);
163 switch ((*obj)->kind) {
171 case %(abbrev)s_KIND_%(enum)s:
172 visit_type_%(c_type)s(m, &(*obj)->%(c_name)s, "data", &err);
175 abbrev = de_camel_case(name).upper(),
176 enum = c_fun(de_camel_case(key),False).upper(),
185 error_propagate(errp, err);
191 /* Always call end_struct if start_struct succeeded. */
192 visit_end_struct(m, &err);
194 error_propagate(errp, err);
205 def generate_declaration(name, members, genlist=True):
208 void visit_type_%(name)s(Visitor *m, %(name)s ** obj, const char *name, Error **errp);
214 void visit_type_%(name)sList(Visitor *m, %(name)sList ** obj, const char *name, Error **errp);
220 def generate_enum_declaration(name, members, genlist=True):
224 void visit_type_%(name)sList(Visitor *m, %(name)sList ** obj, const char *name, Error **errp);
230 def generate_decl_enum(name, members, genlist=True):
233 void visit_type_%(name)s(Visitor *m, %(name)s * obj, const char *name, Error **errp);
238 opts, args = getopt.gnu_getopt(sys.argv[1:], "chp:o:",
239 ["source", "header", "prefix=", "output-dir="])
240 except getopt.GetoptError, err:
246 c_file = 'qapi-visit.c'
247 h_file = 'qapi-visit.h'
253 if o in ("-p", "--prefix"):
255 elif o in ("-o", "--output-dir"):
257 elif o in ("-c", "--source"):
259 elif o in ("-h", "--header"):
262 if not do_c and not do_h:
266 c_file = output_dir + prefix + c_file
267 h_file = output_dir + prefix + h_file
270 os.makedirs(output_dir)
272 if e.errno != errno.EEXIST:
275 def maybe_open(really, name, opt):
277 return open(name, opt)
280 return StringIO.StringIO()
282 fdef = maybe_open(do_c, c_file, 'w')
283 fdecl = maybe_open(do_h, h_file, 'w')
286 /* THIS FILE IS AUTOMATICALLY GENERATED, DO NOT MODIFY */
289 * schema-defined QAPI visitor functions
291 * Copyright IBM, Corp. 2011
294 * Anthony Liguori <aliguori@us.ibm.com>
296 * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
297 * See the COPYING.LIB file in the top-level directory.
301 #include "%(header)s"
303 header=basename(h_file)))
305 fdecl.write(mcgen('''
306 /* THIS FILE IS AUTOMATICALLY GENERATED, DO NOT MODIFY */
309 * schema-defined QAPI visitor function
311 * Copyright IBM, Corp. 2011
314 * Anthony Liguori <aliguori@us.ibm.com>
316 * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
317 * See the COPYING.LIB file in the top-level directory.
324 #include "qapi/qapi-visit-core.h"
325 #include "%(prefix)sqapi-types.h"
327 prefix=prefix, guard=guardname(h_file)))
329 exprs = parse_schema(sys.stdin)
332 if expr.has_key('type'):
333 ret = generate_visit_struct(expr['type'], expr['data'])
334 ret += generate_visit_list(expr['type'], expr['data'])
337 ret = generate_declaration(expr['type'], expr['data'])
339 elif expr.has_key('union'):
340 ret = generate_visit_union(expr['union'], expr['data'])
341 ret += generate_visit_list(expr['union'], expr['data'])
344 ret = generate_decl_enum('%sKind' % expr['union'], expr['data'].keys())
345 ret += generate_declaration(expr['union'], expr['data'])
347 elif expr.has_key('enum'):
348 ret = generate_visit_list(expr['enum'], expr['data'])
349 ret += generate_visit_enum(expr['enum'], expr['data'])
352 ret = generate_decl_enum(expr['enum'], expr['data'])
353 ret += generate_enum_declaration(expr['enum'], expr['data'])