# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1601224203 -7200
# Node ID 5b35b477eff01ba5cdf21479b521d215a75aabad
# Parent  8e8febe4ddfca62256ec3bde4967f9a8811c8bd9
patch 8.2.1760: Vim9: crash when end marker is missing

Commit: https://github.com/vim/vim/commit/2914a20abc78d4ace94d48d6e6ab9f0da894dd7e
Author: Bram Moolenaar <Bram@vim.org>
Date:   Sun Sep 27 18:24:03 2020 +0200

    patch 8.2.1760: Vim9: crash when end marker is missing

    Problem:    Vim9: crash when end marker is missing. (Dhiraj Mishra)
    Solution:   Check for end of function lines. (closes https://github.com/vim/vim/issues/7031)

diff --git a/src/testdir/test_vim9_assign.vim b/src/testdir/test_vim9_assign.vim
--- a/src/testdir/test_vim9_assign.vim
+++ b/src/testdir/test_vim9_assign.vim
@@ -740,6 +740,22 @@ def Test_heredoc()
 
   CheckDefFailure(['var lines =<< trim END X', 'END'], 'E488:')
   CheckDefFailure(['var lines =<< trim END " comment', 'END'], 'E488:')
+
+  lines =<< trim [END]
+      def Func()
+        var&lines =<< trim END
+        x
+        x
+        x
+        x
+        x
+        x
+        x
+        x
+      enddef
+      call Func()
+  [END]
+  CheckScriptFailure(lines, 'E990:')
 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
@@ -751,6 +751,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1760,
+/**/
     1759,
 /**/
     1758,
diff --git a/src/vim9compile.c b/src/vim9compile.c
--- a/src/vim9compile.c
+++ b/src/vim9compile.c
@@ -4360,7 +4360,7 @@ exarg_getline(
 
     for (;;)
     {
-	if (cctx->ctx_lnum == cctx->ctx_ufunc->uf_lines.ga_len)
+	if (cctx->ctx_lnum >= cctx->ctx_ufunc->uf_lines.ga_len - 1)
 	    return NULL;
 	++cctx->ctx_lnum;
 	p = ((char_u **)cctx->ctx_ufunc->uf_lines.ga_data)[cctx->ctx_lnum];