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gfileenumerator: Warn if name is not available for get_child()

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`standard::name` must be available for `g_file_enumerator_get_child()`
to work. Emit a critical warning and return if it’s not. This is similar
to the existing behaviour in `g_file_enumerator_iterate()`.

Improve the documentation to mention this.

Signed-off-by: Philip Withnall <pwithnall@endlessos.org>

Fixes: #2507
This commit is contained in:
Philip Withnall
2021-10-21 11:13:29 +01:00
parent e508a0a8df
commit b6424b5ce1
2 changed files with 17 additions and 3 deletions
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16
gio/gfileenumerator.c
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@@ -721,6 +721,9 @@ g_file_enumerator_get_container (GFileEnumerator *enumerator)
* directory of @enumerator. This function is primarily intended to be used
* inside loops with g_file_enumerator_next_file().
*
* To use this, #G_FILE_ATTRIBUTE_STANDARD_NAME must have been listed in the
* attributes list used when creating the #GFileEnumerator.
*
* This is a convenience method that's equivalent to:
* |[<!-- language="C" -->
* gchar *name = g_file_info_get_name (info);
@@ -736,11 +739,20 @@ GFile *
g_file_enumerator_get_child (GFileEnumerator *enumerator,
GFileInfo *info)
{
const gchar *name;
g_return_val_if_fail (G_IS_FILE_ENUMERATOR (enumerator), NULL);
g_return_val_if_fail (G_IS_FILE_INFO (info), NULL);
return g_file_get_child (enumerator->priv->container,
g_file_info_get_name (info));
name = g_file_info_get_name (info);
if (G_UNLIKELY (name == NULL))
{
g_critical ("GFileEnumerator created without standard::name");
g_return_val_if_reached (NULL);
}
return g_file_get_child (enumerator->priv->container, name);
}
static void