[girepository] Move GIEnumInfo out of ginfo.ch

1 files changed, 136 insertions, 0 deletions

diff --git a/girepository/gienuminfo.c b/girepository/gienuminfo.c
new file mode 100644
index 00000000..ac8f0924
--- /dev/null
+++ b/girepository/gienuminfo.c
@@ -0,0 +1,136 @@
+/* GObject introspection: Enum implementation
+ *
+ * Copyright (C) 2005 Matthias Clasen
+ * Copyright (C) 2008,2009 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <glib.h>
+
+#include <girepository.h>
+#include "girepository-private.h"
+#include "gitypelib-internal.h"
+
+/**
+ * SECTION:gienuminfo
+ * @Short_description: Structs representing an enumeration and its values
+ * @Title: GIEnumInfo
+ *
+ * A GIEnumInfo represents an enumeration and a GIValueInfo struct represents a value
+ * of an enumeration. The GIEnumInfo contains a set of values and a type
+ * The GIValueInfo is fetched by calling g_enum_info_get_value() on a #GIEnumInfo.
+ */
+
+/**
+* g_enum_info_get_n_values:
+* @info: a #GIEnumInfo
+*
+* Obtain the number of values this enumeration contains.
+*
+* Returns: the number of enumeration values
+*/
+gint
+g_enum_info_get_n_values (GIEnumInfo *info)
+{
+  GIRealInfo *rinfo = (GIRealInfo *)info;
+  EnumBlob *blob;
+
+  g_return_val_if_fail (info != NULL, 0);
+  g_return_val_if_fail (GI_IS_ENUM_INFO (info), 0);
+
+  blob = (EnumBlob *)&rinfo->typelib->data[rinfo->offset];
+
+  return blob->n_values;
+}
+
+/**
+ * g_enum_info_get_value:
+ * @info: a #GIEnumInfo
+ * @n: index of value to fetch
+ *
+ * Obtain a value for this enumeration.
+ *
+ * Returns: (transfer full): the enumeration value or %NULL if type tag is wrong,
+ * free the struct with g_base_info_unref() when done.
+ */
+GIValueInfo *
+g_enum_info_get_value (GIEnumInfo *info,
+		       gint        n)
+{
+  GIRealInfo *rinfo = (GIRealInfo *)info;
+  Header *header;
+  gint offset;
+
+  g_return_val_if_fail (info != NULL, NULL);
+  g_return_val_if_fail (GI_IS_ENUM_INFO (info), NULL);
+
+  header = (Header *)rinfo->typelib->data;
+  offset = rinfo->offset + header->enum_blob_size
+    + n * header->value_blob_size;
+
+  return (GIValueInfo *) g_info_new (GI_INFO_TYPE_VALUE, (GIBaseInfo*)info, rinfo->typelib, offset);
+}
+
+/**
+ * g_enum_info_get_storage_type:
+ * @info: a #GIEnumInfo
+ *
+ * Obtain the tag of the type used for the enum in the C ABI. This will
+ * will be a signed or unsigned integral type.
+
+ * Note that in the current implementation the width of the type is
+ * computed correctly, but the signed or unsigned nature of the type
+ * may not match the sign of the type used by the C compiler.
+ *
+ * Return Value: the storage type for the enumeration
+ */
+GITypeTag
+g_enum_info_get_storage_type (GIEnumInfo *info)
+{
+  GIRealInfo *rinfo = (GIRealInfo *)info;
+  EnumBlob *blob;
+
+  g_return_val_if_fail (info != NULL, GI_TYPE_TAG_BOOLEAN);
+  g_return_val_if_fail (GI_IS_ENUM_INFO (info), GI_TYPE_TAG_BOOLEAN);
+
+  blob = (EnumBlob *)&rinfo->typelib->data[rinfo->offset];
+
+  return blob->storage_type;
+}
+
+/**
+ * g_value_info_get_value:
+ * @info: a #GIValueInfo
+ *
+ * Obtain the enumeration value of the #GIValueInfo.
+ *
+ * Returns: the enumeration value
+ */
+glong
+g_value_info_get_value (GIValueInfo *info)
+{
+  GIRealInfo *rinfo = (GIRealInfo *)info;
+  ValueBlob *blob;
+
+  g_return_val_if_fail (info != NULL, -1);
+  g_return_val_if_fail (GI_IS_VALUE_INFO (info), -1);
+
+  blob = (ValueBlob *)&rinfo->typelib->data[rinfo->offset];
+
+  return (glong)blob->value;
+}
+