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Improve GtkBuilder error reporting

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Make GtkBuilder report an error when it encounters a duplicate id,
instead of segfaulting later on
This commit is contained in:
Matthias Clasen 2009-04-06 20:13:35 -04:00
parent 779deb2b9d
commit 1a312bfa3e
4 changed files with 32 additions and 10 deletions
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1
docs/reference/gtk/tmpl/gtkbuilder.sgml
View File

@ -285,6 +285,7 @@ using #GtkBuilder.
some attribute value.
@GTK_BUILDER_ERROR_VERSION_MISMATCH: The input file requires a newer version
of GTK+.
@GTK_BUILDER_ERROR_DUPLICATE_ID: An object id occurred twice.
<!-- ##### FUNCTION gtk_builder_new ##### -->
<para>

3
gtk/gtkbuilder.h
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@ -52,7 +52,8 @@ typedef enum
GTK_BUILDER_ERROR_INVALID_TAG,
GTK_BUILDER_ERROR_MISSING_PROPERTY_VALUE,
GTK_BUILDER_ERROR_INVALID_VALUE,
GTK_BUILDER_ERROR_VERSION_MISMATCH
GTK_BUILDER_ERROR_VERSION_MISMATCH,
GTK_BUILDER_ERROR_DUPLICATE_ID
} GtkBuilderError;
GQuark gtk_builder_error_quark (void);

36
gtk/gtkbuilderparser.c
View File

@ -298,11 +298,12 @@ is_requested_object (const gchar *object,
}
static void
parse_object (ParserData *data,
const gchar *element_name,
const gchar **names,
const gchar **values,
GError **error)
parse_object (GMarkupParseContext *context,
ParserData *data,
const gchar *element_name,
const gchar **names,
const gchar **values,
GError **error)
{
ObjectInfo *object_info;
ChildInfo* child_info;
@ -310,6 +311,7 @@ parse_object (ParserData *data,
gchar *object_class = NULL;
gchar *object_id = NULL;
gchar *constructor = NULL;
gint line, line2;
child_info = state_peek_info (data, ChildInfo);
if (child_info && strcmp (child_info->tag.name, "object") == 0)
@ -335,10 +337,11 @@ parse_object (ParserData *data,
object_class = _get_type_by_symbol (values[i]);
if (!object_class)
{
g_set_error (error, GTK_BUILDER_ERROR,
g_markup_parse_context_get_position (context, &line, NULL);
g_set_error (error, GTK_BUILDER_ERROR,
GTK_BUILDER_ERROR_INVALID_TYPE_FUNCTION,
_("Invalid type function: `%s'"),
values[i]);
_("Invalid type function on line %d: '%s'"),
line, values[i]);
return;
}
}
@ -389,6 +392,19 @@ parse_object (ParserData *data,
if (child_info)
object_info->parent = (CommonInfo*)child_info;
g_markup_parse_context_get_position (context, &line, NULL);
line2 = GPOINTER_TO_INT (g_hash_table_lookup (data->object_ids, object_id));
if (line2 != 0)
{
g_set_error (error, GTK_BUILDER_ERROR,
GTK_BUILDER_ERROR_DUPLICATE_ID,
_("Duplicate object id '%s' on line %d (previously on line %d)"),
object_id, line, line2);
return;
}
g_hash_table_insert (data->object_ids, object_id, GINT_TO_POINTER (line));
}
static void
@ -848,7 +864,7 @@ start_element (GMarkupParseContext *context,
if (strcmp (element_name, "requires") == 0)
parse_requires (data, element_name, names, values, error);
else if (strcmp (element_name, "object") == 0)
parse_object (data, element_name, names, values, error);
parse_object (context, data, element_name, names, values, error);
else if (data->requested_objects && !data->inside_requested_object)
{
/* If outside a requested object, simply ignore this tag */
@ -1145,6 +1161,7 @@ _gtk_builder_parser_parse_buffer (GtkBuilder *builder,
data->builder = builder;
data->filename = filename;
data->domain = g_strdup (domain);
data->object_ids = g_hash_table_new (g_str_hash, g_str_equal);
data->requested_objects = NULL;
if (requested_objs)
@ -1204,6 +1221,7 @@ _gtk_builder_parser_parse_buffer (GtkBuilder *builder,
g_slist_foreach (data->requested_objects, (GFunc) g_free, NULL);
g_slist_free (data->requested_objects);
g_free (data->domain);
g_hash_table_destroy (data->object_ids);
g_markup_parse_context_free (data->ctx);
g_free (data);

2
gtk/gtkbuilderprivate.h
View File

@ -101,6 +101,8 @@ typedef struct {
gboolean inside_requested_object;
gint requested_object_level;
gint cur_object_level;
GHashTable *object_ids;
} ParserData;
typedef GType (*GTypeGetFunc) (void);