1 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
2 * GObject introspection: Dump introspection data
4 * Copyright (C) 2008 Colin Walters <walters@verbum.org>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 02111-1307, USA.
25 #include <glib-object.h>
28 /* This file is both compiled into libgirepository.so, and installed
29 * on the filesystem. But for the dumper, we want to avoid linking
30 * to libgirepository; see
31 * https://bugzilla.gnome.org/show_bug.cgi?id=630342
33 #ifdef G_IREPOSITORY_COMPILATION
35 #include "girepository.h"
41 escaped_printf (GOutputStream *out, const char *fmt, ...) G_GNUC_PRINTF (2, 3);
44 escaped_printf (GOutputStream *out, const char *fmt, ...)
53 str = g_markup_vprintf_escaped (fmt, args);
54 if (!g_output_stream_write_all (out, str, strlen (str), &written, NULL, &error))
56 g_critical ("failed to write to iochannel: %s", error->message);
57 g_clear_error (&error);
65 goutput_write (GOutputStream *out, const char *str)
69 if (!g_output_stream_write_all (out, str, strlen (str), &written, NULL, &error))
71 g_critical ("failed to write to iochannel: %s", error->message);
72 g_clear_error (&error);
76 typedef GType (*GetTypeFunc)(void);
77 typedef GQuark (*ErrorQuarkFunc)(void);
80 invoke_get_type (GModule *self, const char *symbol, GError **error)
85 if (!g_module_symbol (self, symbol, (void**)&sym))
90 "Failed to find symbol '%s'", symbol);
91 return G_TYPE_INVALID;
95 if (ret == G_TYPE_INVALID)
100 "Function '%s' returned G_TYPE_INVALID", symbol);
106 invoke_error_quark (GModule *self, const char *symbol, GError **error)
110 if (!g_module_symbol (self, symbol, (void**)&sym))
115 "Failed to find symbol '%s'", symbol);
116 return G_TYPE_INVALID;
123 dump_properties (GType type, GOutputStream *out)
129 if (G_TYPE_FUNDAMENTAL (type) == G_TYPE_OBJECT)
132 klass = g_type_class_ref (type);
133 props = g_object_class_list_properties (klass, &n_properties);
138 klass = g_type_default_interface_ref (type);
139 props = g_object_interface_list_properties (klass, &n_properties);
142 for (i = 0; i < n_properties; i++)
147 if (prop->owner_type != type)
150 escaped_printf (out, " <property name=\"%s\" type=\"%s\" flags=\"%d\"/>\n",
151 prop->name, g_type_name (prop->value_type), prop->flags);
157 dump_signals (GType type, GOutputStream *out)
163 sig_ids = g_signal_list_ids (type, &n_sigs);
164 for (i = 0; i < n_sigs; i++)
171 g_signal_query (sigid, &query);
173 escaped_printf (out, " <signal name=\"%s\" return=\"%s\"",
174 query.signal_name, g_type_name (query.return_type));
176 if (query.signal_flags & G_SIGNAL_RUN_FIRST)
177 escaped_printf (out, " when=\"first\"");
178 else if (query.signal_flags & G_SIGNAL_RUN_LAST)
179 escaped_printf (out, " when=\"last\"");
180 else if (query.signal_flags & G_SIGNAL_RUN_CLEANUP)
181 escaped_printf (out, " when=\"cleanup\"");
182 #if GLIB_CHECK_VERSION(2, 29, 15)
183 else if (query.signal_flags & G_SIGNAL_MUST_COLLECT)
184 escaped_printf (out, " when=\"must-collect\"");
186 if (query.signal_flags & G_SIGNAL_NO_RECURSE)
187 escaped_printf (out, " no-recurse=\"1\"");
189 if (query.signal_flags & G_SIGNAL_DETAILED)
190 escaped_printf (out, " detailed=\"1\"");
192 if (query.signal_flags & G_SIGNAL_ACTION)
193 escaped_printf (out, " action=\"1\"");
195 if (query.signal_flags & G_SIGNAL_NO_HOOKS)
196 escaped_printf (out, " no-hooks=\"1\"");
198 goutput_write (out, ">\n");
200 for (j = 0; j < query.n_params; j++)
202 escaped_printf (out, " <param type=\"%s\"/>\n",
203 g_type_name (query.param_types[j]));
205 goutput_write (out, " </signal>\n");
211 dump_object_type (GType type, const char *symbol, GOutputStream *out)
217 escaped_printf (out, " <class name=\"%s\" get-type=\"%s\"",
218 g_type_name (type), symbol);
219 if (type != G_TYPE_OBJECT)
223 gboolean first = TRUE;
225 parent = g_type_parent (type);
226 parent_str = g_string_new ("");
227 while (parent != G_TYPE_INVALID)
232 g_string_append_c (parent_str, ',');
233 g_string_append (parent_str, g_type_name (parent));
234 parent = g_type_parent (parent);
237 escaped_printf (out, " parents=\"%s\"", parent_str->str);
239 g_string_free (parent_str, TRUE);
242 if (G_TYPE_IS_ABSTRACT (type))
243 escaped_printf (out, " abstract=\"1\"");
244 goutput_write (out, ">\n");
246 interfaces = g_type_interfaces (type, &n_interfaces);
247 for (i = 0; i < n_interfaces; i++)
249 GType itype = interfaces[i];
250 escaped_printf (out, " <implements name=\"%s\"/>\n",
251 g_type_name (itype));
255 dump_properties (type, out);
256 dump_signals (type, out);
257 goutput_write (out, " </class>\n");
261 dump_interface_type (GType type, const char *symbol, GOutputStream *out)
267 escaped_printf (out, " <interface name=\"%s\" get-type=\"%s\">\n",
268 g_type_name (type), symbol);
270 interfaces = g_type_interface_prerequisites (type, &n_interfaces);
271 for (i = 0; i < n_interfaces; i++)
273 GType itype = interfaces[i];
274 if (itype == G_TYPE_OBJECT)
276 /* Treat this as implicit for now; in theory GInterfaces are
277 * supported on things like GstMiniObject, but right now
278 * the introspection system only supports GObject.
279 * http://bugzilla.gnome.org/show_bug.cgi?id=559706
283 escaped_printf (out, " <prerequisite name=\"%s\"/>\n",
284 g_type_name (itype));
288 dump_properties (type, out);
289 dump_signals (type, out);
290 goutput_write (out, " </interface>\n");
294 dump_boxed_type (GType type, const char *symbol, GOutputStream *out)
296 escaped_printf (out, " <boxed name=\"%s\" get-type=\"%s\"/>\n",
297 g_type_name (type), symbol);
301 dump_flags_type (GType type, const char *symbol, GOutputStream *out)
306 klass = g_type_class_ref (type);
307 escaped_printf (out, " <flags name=\"%s\" get-type=\"%s\">\n",
308 g_type_name (type), symbol);
310 for (i = 0; i < klass->n_values; i++)
312 GFlagsValue *value = &(klass->values[i]);
314 escaped_printf (out, " <member name=\"%s\" nick=\"%s\" value=\"%d\"/>\n",
315 value->value_name, value->value_nick, value->value);
317 goutput_write (out, " </flags>\n");
321 dump_enum_type (GType type, const char *symbol, GOutputStream *out)
326 klass = g_type_class_ref (type);
327 escaped_printf (out, " <enum name=\"%s\" get-type=\"%s\">\n",
328 g_type_name (type), symbol);
330 for (i = 0; i < klass->n_values; i++)
332 GEnumValue *value = &(klass->values[i]);
334 escaped_printf (out, " <member name=\"%s\" nick=\"%s\" value=\"%d\"/>\n",
335 value->value_name, value->value_nick, value->value);
337 goutput_write (out, " </enum>");
341 dump_fundamental_type (GType type, const char *symbol, GOutputStream *out)
348 gboolean first = TRUE;
351 escaped_printf (out, " <fundamental name=\"%s\" get-type=\"%s\"",
352 g_type_name (type), symbol);
354 if (G_TYPE_IS_ABSTRACT (type))
355 escaped_printf (out, " abstract=\"1\"");
357 if (G_TYPE_IS_INSTANTIATABLE (type))
358 escaped_printf (out, " instantiatable=\"1\"");
360 parent = g_type_parent (type);
361 parent_str = g_string_new ("");
362 while (parent != G_TYPE_INVALID)
367 g_string_append_c (parent_str, ',');
368 if (!g_type_name (parent))
370 g_string_append (parent_str, g_type_name (parent));
371 parent = g_type_parent (parent);
374 if (parent_str->len > 0)
375 escaped_printf (out, " parents=\"%s\"", parent_str->str);
376 g_string_free (parent_str, TRUE);
378 goutput_write (out, ">\n");
380 interfaces = g_type_interfaces (type, &n_interfaces);
381 for (i = 0; i < n_interfaces; i++)
383 GType itype = interfaces[i];
384 escaped_printf (out, " <implements name=\"%s\"/>\n",
385 g_type_name (itype));
388 goutput_write (out, " </fundamental>\n");
392 dump_type (GType type, const char *symbol, GOutputStream *out)
394 switch (g_type_fundamental (type))
397 dump_object_type (type, symbol, out);
399 case G_TYPE_INTERFACE:
400 dump_interface_type (type, symbol, out);
403 dump_boxed_type (type, symbol, out);
406 dump_flags_type (type, symbol, out);
409 dump_enum_type (type, symbol, out);
412 /* GValue, etc. Just skip them. */
415 dump_fundamental_type (type, symbol, out);
421 dump_error_quark (GQuark quark, const char *symbol, GOutputStream *out)
423 escaped_printf (out, " <error-quark function=\"%s\" domain=\"%s\"/>\n",
424 symbol, g_quark_to_string (quark));
428 * g_irepository_dump:
429 * @arg: Comma-separated pair of input and output filenames
432 * Argument specified is a comma-separated pair of filenames; i.e. of
433 * the form "input.txt,output.xml". The input file should be a
434 * UTF-8 Unix-line-ending text file, with each line containing either
435 * "get-type:" followed by the name of a GType _get_type function, or
436 * "error-quark:" followed by the name of an error quark function. No
437 * extra whitespace is allowed.
439 * The output file should already exist, but be empty. This function will
440 * overwrite its contents.
442 * Returns: %TRUE on success, %FALSE on error
444 #ifndef G_IREPOSITORY_COMPILATION
446 dump_irepository (const char *arg, GError **error) G_GNUC_UNUSED;
448 dump_irepository (const char *arg, GError **error)
451 g_irepository_dump (const char *arg, GError **error)
454 GHashTable *output_types;
458 GFileInputStream *input;
459 GFileOutputStream *output;
460 GDataInputStream *in;
462 gboolean caught_error = FALSE;
464 self = g_module_open (NULL, 0);
470 "failed to open self: %s",
475 args = g_strsplit (arg, ",", 2);
477 input_file = g_file_new_for_path (args[0]);
478 output_file = g_file_new_for_path (args[1]);
482 input = g_file_read (input_file, NULL, error);
483 g_object_unref (input_file);
487 g_object_unref (output_file);
491 output = g_file_replace (output_file, NULL, FALSE, 0, NULL, error);
492 g_object_unref (output_file);
496 g_input_stream_close (G_INPUT_STREAM (input), NULL, NULL);
500 goutput_write (G_OUTPUT_STREAM (output), "<?xml version=\"1.0\"?>\n");
501 goutput_write (G_OUTPUT_STREAM (output), "<dump>\n");
503 output_types = g_hash_table_new (NULL, NULL);
505 in = g_data_input_stream_new (G_INPUT_STREAM (input));
506 g_object_unref (input);
511 char *line = g_data_input_stream_read_line (in, &len, NULL, NULL);
512 const char *function;
514 if (line == NULL || *line == '\0')
522 if (strncmp (line, "get-type:", strlen ("get-type:")) == 0)
526 function = line + strlen ("get-type:");
528 type = invoke_get_type (self, function, error);
530 if (type == G_TYPE_INVALID)
532 g_printerr ("Invalid GType function: '%s'\n", function);
538 if (g_hash_table_lookup (output_types, (gpointer) type))
540 g_hash_table_insert (output_types, (gpointer) type, (gpointer) type);
542 dump_type (type, function, G_OUTPUT_STREAM (output));
544 else if (strncmp (line, "error-quark:", strlen ("error-quark:")) == 0)
547 function = line + strlen ("error-quark:");
548 quark = invoke_error_quark (self, function, error);
552 g_printerr ("Invalid error quark function: '%s'\n", function);
558 dump_error_quark (quark, function, G_OUTPUT_STREAM (output));
566 g_hash_table_destroy (output_types);
568 goutput_write (G_OUTPUT_STREAM (output), "</dump>\n");
572 /* Avoid overwriting an earlier set error */
577 if (!g_input_stream_close (G_INPUT_STREAM (in), NULL, ioerror))
579 if (!g_output_stream_close (G_OUTPUT_STREAM (output), NULL, ioerror))
583 return !caught_error;