# HG changeset patch
# User Christian Brabandt <cb@256bit.org>
# Date 1692211892 -7200
# Node ID 57282f1d9e0fed8a81b1bb78c8c4eeadb378e133
# Parent  c2c84e9b90edcf0ec5fc8948f592b567d7083b44
patch 9.0.1720: Vim9 class using wrong index for overridden method

Commit: https://github.com/vim/vim/commit/a456b12011569be91418bbf6277d844c67e05e79
Author: Yegappan Lakshmanan <yegappan@yahoo.com>
Date:   Wed Aug 16 20:14:37 2023 +0200

    patch 9.0.1720: Vim9 class using wrong index for overridden method

    Problem: Vim9 class using wrong index for overridden method
    Solution: Use correct index for overridden method

    closes: #12524
    closes: #12813

    Signed-off-by: Christian Brabandt <cb@256bit.org>
    Co-authored-by: Yegappan Lakshmanan <yegappan@yahoo.com>

diff --git a/src/testdir/test_vim9_class.vim b/src/testdir/test_vim9_class.vim
--- a/src/testdir/test_vim9_class.vim
+++ b/src/testdir/test_vim9_class.vim
@@ -1948,4 +1948,42 @@ def Test_call_method_in_extended_class()
   v9.CheckScriptSuccess(lines)
 enddef
 
+" Test for calling a method in the parent class that is extended partially.
+" This used to fail with the 'E118: Too many arguments for function: Text' error
+" message (Github issue #12524).
+def Test_call_method_in_parent_class()
+  var lines =<< trim END
+    vim9script
+
+    class Widget
+      this._lnum: number = 1
+
+      def SetY(lnum: number)
+        this._lnum = lnum
+      enddef
+
+      def Text(): string
+        return ''
+      enddef
+    endclass
+
+    class Foo extends Widget
+      def Text(): string
+        return '<Foo>'
+      enddef
+    endclass
+
+    def Stack(w1: Widget, w2: Widget): list<Widget>
+      w1.SetY(1)
+      w2.SetY(2)
+      return [w1, w2]
+    enddef
+
+    var foo1 = Foo.new()
+    var foo2 = Foo.new()
+    var l = Stack(foo1, foo2)
+  END
+  v9.CheckScriptSuccess(lines)
+enddef
+
 " vim: ts=8 sw=2 sts=2 expandtab tw=80 fdm=marker
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1720,
+/**/
     1719,
 /**/
     1718,
diff --git a/src/vim9class.c b/src/vim9class.c
--- a/src/vim9class.c
+++ b/src/vim9class.c
@@ -911,7 +911,7 @@ early_ret:
 									  == 0)
 			    {
 				int *table = (int *)(if2cl + 1);
-				table[if_i] = cl_i;
+				table[if_i] = objmethods.ga_len + cl_i;
 				break;
 			    }
 			}