Initial step to move libquery to IDTypeInfo.

Part of T74960 (and hence T75724).

This commit only adds the basics helper code, and alter some internal libquery
code to use it.

Porting each IDType to the new system will be done gradually from there,
to allow better detection and handling of potential issues.

Differential Revision: https://developer.blender.org/D7598

1 files changed, 28 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_lib_query.h b/source/blender/blenkernel/BKE_lib_query.h
index 3aa27bf557c..353ee3bbf5a 100644
--- a/source/blender/blenkernel/BKE_lib_query.h
+++ b/source/blender/blenkernel/BKE_lib_query.h
@@ -40,6 +40,7 @@ extern "C" {
 #endif
 
 struct ID;
+struct IDProperty;
 struct Main;
 
 /* Tips for the callback for cases it's gonna to modify the pointer. */
@@ -126,6 +127,33 @@ enum {
   IDWALK_NO_INDIRECT_PROXY_DATA_USAGE = (1 << 8), /* Ugly special case :(((( */
 };
 
+typedef struct LibraryForeachIDData LibraryForeachIDData;
+
+bool BKE_lib_query_foreachid_process(struct LibraryForeachIDData *data,
+                                     struct ID **id_pp,
+                                     int cb_flag);
+
+#define BKE_LIB_FOREACHID_PROCESS_ID(_data, _id, _cb_flag) \
+  { \
+    CHECK_TYPE_ANY((_id), ID *, void *); \
+    if (!BKE_lib_query_foreachid_process((_data), (ID **)&(_id), (_cb_flag))) { \
+      return; \
+    } \
+  } \
+  ((void)0)
+
+#define BKE_LIB_FOREACHID_PROCESS(_data, _id_super, _cb_flag) \
+  { \
+    CHECK_TYPE(&((_id_super)->id), ID *); \
+    if (!BKE_lib_query_foreachid_process((_data), (ID **)&(_id_super), (_cb_flag))) { \
+      return; \
+    } \
+  } \
+  ((void)0)
+
+bool BKE_library_foreach_ID_embedded(struct LibraryForeachIDData *data, struct ID **id_pp);
+void BKE_lib_query_idpropertiesForeachIDLink_callback(struct IDProperty *id_prop, void *user_data);
+
 /* Loop over all of the ID's this datablock links to. */
 void BKE_library_foreach_ID_link(
     struct Main *bmain, struct ID *id, LibraryIDLinkCallback callback, void *user_data, int flag);