eolian: Imply @no_unused if @move in return.

Summary:
This makes sure the user is warned if it ignores a return value that
could potentially be a memory leak.

This also makes possible to use `value {}` blocks with `@move` instead
of value-less properties with `@no_unused`.

Also removed the `@move` from canvas_text_async_layout as it is ignored
in the only place it is used.

Reviewers: q66

Reviewed By: q66

Subscribers: #reviewers, #committers, bu5hm4n, felipealmeida, cedric, segfaultxavi

Tags: #efl

Differential Revision: https://phab.enlightenment.org/D10601

src/bin/eolian/headers.c

@@ -168,7 +168,7 @@ _gen_func(const Eolian_State *state, const Eolian_Function *fid,
      eina_strbuf_append(buf, "void");
 
    eina_strbuf_append(buf, ")");
-   if (!eolian_function_return_allow_unused(fid, ftype))
+   if (!eolian_function_return_allow_unused(fid, ftype) || return_move)
      {
         if (!flagbuf)
           flagbuf = eina_strbuf_new();

src/lib/evas/canvas/efl_canvas_text.eo

@@ -222,7 +222,7 @@ class @beta Efl.Canvas.Text extends Efl.Canvas.Object implements Efl.Text,
            Once layout is complete, the result is returned as @Eina.Rect,
            with w, h fields set.
          ]]
-         return: future<Eina.Rect> @move; [[Future for layout result]]
+         return: future<Eina.Rect>; [[Future for layout result]]
       }
    }
    implements {

src/tests/efl_mono/dummy_test_object.c

@@ -217,12 +217,16 @@ void _dummy_test_object_out_own_string(EINA_UNUSED Eo *obj, EINA_UNUSED Dummy_Te
 
 void _dummy_test_object_call_in_string(Eo *obj, EINA_UNUSED Dummy_Test_Object_Data *pd, const char *str)
 {
-  dummy_test_object_in_string(obj, str);
+  char *ptr = dummy_test_object_in_string(obj, str);
+  if (ptr)
+    free(ptr);
 }
 
 void _dummy_test_object_call_in_own_string(Eo *obj, EINA_UNUSED Dummy_Test_Object_Data *pd, char *str)
 {
-  dummy_test_object_in_own_string(obj, str);
+  char *ptr = dummy_test_object_in_own_string(obj, str);
+  if (ptr)
+    free(ptr);
 }
 
 const char *_dummy_test_object_call_return_string(Eo *obj, EINA_UNUSED Dummy_Test_Object_Data *pd)
@@ -252,7 +256,9 @@ char *_dummy_test_object_call_out_own_string(Eo *obj, EINA_UNUSED Dummy_Test_Obj
 // Stringshare virtual test helpers
 void _dummy_test_object_call_in_stringshare(Eo *obj, EINA_UNUSED Dummy_Test_Object_Data *pd, Eina_Stringshare *str)
 {
-  dummy_test_object_in_stringshare(obj, str);
+  Eina_Stringshare *ptr = dummy_test_object_in_stringshare(obj, str);
+  if (ptr)
+    eina_stringshare_del(ptr);
 }
 
 void _dummy_test_object_call_in_own_stringshare(Eo *obj, EINA_UNUSED Dummy_Test_Object_Data *pd, Eina_Stringshare *str)

src/tests/eolian/data/function_as_argument_ref.h

@@ -19,6 +19,6 @@ EWAPI const Efl_Class *function_as_argument_class_get(void);
 
 EOAPI void function_as_argument_set_cb(Eo *obj, void *cb_data, SimpleFunc cb, Eina_Free_Cb cb_free_cb);
 
-EOAPI char *function_as_argument_call_cb(Eo *obj, int a, double b) EFL_TRANSFER_OWNERSHIP;
+EOAPI char *function_as_argument_call_cb(Eo *obj, int a, double b) EFL_TRANSFER_OWNERSHIP EINA_WARN_UNUSED_RESULT;
 
 #endif

src/tests/eolian/data/struct_ref.h

@@ -38,7 +38,7 @@ EWAPI const Efl_Class *struct_class_get(void);
  *
  * @ingroup Struct
  */
-EOAPI char *struct_foo(Eo *obj, int idx) EFL_TRANSFER_OWNERSHIP;
+EOAPI char *struct_foo(Eo *obj, int idx) EFL_TRANSFER_OWNERSHIP EINA_WARN_UNUSED_RESULT;
 
 EOAPI Named *struct_bar(Eo *obj);
 

src/tests/eolian/data/typedef_ref.h

@@ -34,6 +34,6 @@ typedef enum
 
 EWAPI const Efl_Class *typedef_class_get(void);
 
-EOAPI char *typedef_foo(Eo *obj, int idx) EFL_TRANSFER_OWNERSHIP;
+EOAPI char *typedef_foo(Eo *obj, int idx) EFL_TRANSFER_OWNERSHIP EINA_WARN_UNUSED_RESULT;
 
 #endif