commit 94674f2223aafeaa4690f25e12f3ebe07814c5ba
author Bram Moolenaar <Bram@vim.org> Fri Jan 06 18:42:20 2023 +0000
committer Bram Moolenaar <Bram@vim.org> Fri Jan 06 18:42:20 2023 +0000
tree ec39a32dd6513f68e6f524c4272424a334403def
parent 5bcd29b84e4dd6435177f37a544ecbf8df02412c

patch 9.0.1152: class "implements" argument not implemented

Problem:    Class "implements" argument not implemented.
Solution:   Implement "implements" argument.  Add basic checks for when a
            class implements an interface.

src/eval.c

diff --git a/src/eval.c b/src/eval.c
index c9d2151..0460dec 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -5676,7 +5676,8 @@
 	case VAR_CLASS:
 	    {
 		class_T *cl = tv->vval.v_class;
-		if (cl != NULL && cl->class_copyID != copyID)
+		if (cl != NULL && cl->class_copyID != copyID
+				  && (cl->class_flags && CLASS_INTERFACE) == 0)
 		{
 		    cl->class_copyID = copyID;
 		    for (int i = 0; !abort