Fixed: [cl:autocli-op hide has no effect in yang submodule](https://github.com/clicon/clixon/issues/282)

CHANGELOG.md

@@ -82,6 +82,7 @@ Developers may need to change their code
 
 ### Corrected Bugs
 
+* [cl:autocli-op hide has no effect in yang submodule](https://github.com/clicon/clixon/issues/282)
 * [Doxygen - Typo in Input #275](https://github.com/clicon/clixon/issues/275)
 
 ## 5.3.0

lib/src/clixon_yang.c

@@ -2355,6 +2355,14 @@ ys_populate_unique(clicon_handle h,
  * RFC 7950 Sec 7.19:
  * If no "argument" statement is present, the keyword expects no argument when
  * it is used.
+ * Note there is some complexity in different yang modules with unknown-statements.
+ * y0) The location of the extension definition. E.g. extension autocli-op
+ * y1) The location of the unknown-statement (ys). This is for example: cl:autocli-op hide.
+ *     Lookup of "cl" is lexically scoped in this context (to find (y0)).
+ * y2) The unknown statement may be used by uses/grouping of (y1). But "cl" is declared 
+ *     in y1 context. This is fixed by setting ys_mymodule to y1 which is then used in
+ *     lookups such as in yang_extension_value().
+ * @see yang_extension_value  Called on expanded YANG, eg in context of (y2)
  */
 static int
 ys_populate_unknown(clicon_handle h,
@@ -2376,6 +2384,8 @@ ys_populate_unknown(clicon_handle h,
 	clicon_err(OE_YANG, ENOENT, "Extension \"%s:%s\", module not found", prefix, id);
 	goto done;
     }
+    /* To find right binding eg after grouping/uses */
+    ys->ys_mymodule = ys_module(ys);
     if ((yext = yang_find(ymod, Y_EXTENSION, id)) == NULL){
 	clicon_err(OE_YANG, ENOENT, "Extension \"%s:%s\" not found", prefix, id);
 	goto done;
@@ -3572,6 +3582,7 @@ yang_anydata_add(yang_stmt *yp,
  *        // use extension value
  *     }
  * @endcode
+ * @see ys_populate_unknown  Called when parsing YANGo
  */
 int
 yang_extension_value(yang_stmt *ys,

lib/src/clixon_yang_internal.h

@@ -71,9 +71,13 @@ struct yang_stmt{
 
     char              *ys_argument;  /* String / argument depending on keyword */   
     uint16_t           ys_flags;     /* Flags according to YANG_FLAG_MARK and others */
-    yang_stmt         *ys_mymodule;  /* Shortcut to "my" module. Augmented
-					nodes can belong to other 
-					modules than the ancestor module */
+    yang_stmt         *ys_mymodule;  /* Shortcut to "my" module. Used by:
+                                        1) Augmented nodes "belong" to the module where the 
+                                           augment is declared, which may be differnt from
+                                           the direct ancestor module 
+					2) Unknown nodes "belong" to where the extension is
+                                           declared
+                                      */
     cg_var            *ys_cv;        /* cligen variable. See ys_populate()
 					Following stmts have cv:s:
 				        leaf: for default value

test/test_cli_auto_extension.sh

@@ -136,7 +136,6 @@ wait_backend
 
 function testparam()
 {
-
     # Try hidden parameter list
     new "query table parameter hidden"
     expectpart "$(echo "set table ?" | $clixon_cli -f $cfg 2>&1)" 0 "set table" "<cr>" --not-- "parameter"
@@ -282,6 +281,60 @@ EOF
 new "Test hidden parameter in table/param/value augment"
 testvalue
 
+# Example using imported module where clixon-lib is NOT declared in main module
+# see discussion in ys_populate_unknown (y1 vs y2) and
+# https://github.com/clicon/clixon/issues/282
+cat <<EOF > $fyang
+module example {
+  yang-version 1.1;
+  namespace "urn:example:clixon";
+  prefix ex;
+  import example-augment{
+    prefix aug;
+  }
+
+  container table{
+    list parameter{
+      key name;
+      leaf name{
+        type string;
+      }
+      uses aug:pg;
+    }
+  }
+}
+EOF
+
+# Use this as grouping (not annotate)
+cat <<EOF > $fyang2
+module example-augment {
+   namespace "urn:example:augment";
+   prefix aug;
+   import clixon-lib{
+      prefix cl;
+   }
+  grouping pg {
+      cl:autocli-op hide; /* This is the extension */
+      leaf value{
+        description "a value";
+        type string;
+      }
+      list index{
+        key i;
+	leaf i{
+	  type string;
+	}
+	leaf iv{
+          type string;
+        }
+     }
+   }
+}
+EOF
+
+new "Test hidden parameter in imported module"
+testparam
+
 new "Kill backend"
 # Check if premature kill
 pid=$(pgrep -u root -f clixon_backend)