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-rw-r--r--src/testdir/test_vim9_script.vim40
-rw-r--r--src/version.c2
-rw-r--r--src/vim9execute.c3
3 files changed, 44 insertions, 1 deletions
diff --git a/src/testdir/test_vim9_script.vim b/src/testdir/test_vim9_script.vim
index fe985de35..dcfe88864 100644
--- a/src/testdir/test_vim9_script.vim
+++ b/src/testdir/test_vim9_script.vim
@@ -4731,6 +4731,46 @@ def Run_Test_debug_with_lambda()
delete('XdebugFunc')
enddef
+func Test_debug_running_out_of_lines()
+ CheckRunVimInTerminal
+
+ " call indirectly to avoid compilation error for missing functions
+ call Run_Test_debug_running_out_of_lines()
+endfunc
+
+def Run_Test_debug_running_out_of_lines()
+ var lines =<< trim END
+ vim9script
+ def Crash()
+ #
+ #
+ #
+ #
+ #
+ #
+ #
+ if true
+ #
+ endif
+ enddef
+ breakadd func Crash
+ Crash()
+ END
+ writefile(lines, 'XdebugFunc')
+ var buf = RunVimInTerminal('-S XdebugFunc', {rows: 6, wait_for_ruler: 0})
+ WaitForAssert(() => assert_match('^>', term_getline(buf, 6)))
+
+ term_sendkeys(buf, "next\<CR>")
+ TermWait(buf)
+ WaitForAssert(() => assert_match('^>', term_getline(buf, 6)))
+
+ term_sendkeys(buf, "cont\<CR>")
+ TermWait(buf)
+
+ StopVimInTerminal(buf)
+ delete('XdebugFunc')
+enddef
+
def ProfiledWithLambda()
var n = 3
echo [[1, 2], [3, 4]]->filter((_, l) => l[0] == n)
diff --git a/src/version.c b/src/version.c
index e310f7675..e9d77a924 100644
--- a/src/version.c
+++ b/src/version.c
@@ -750,6 +750,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
+ 3878,
+/**/
3877,
/**/
3876,
diff --git a/src/vim9execute.c b/src/vim9execute.c
index 74851121b..72cbb9044 100644
--- a/src/vim9execute.c
+++ b/src/vim9execute.c
@@ -1660,7 +1660,8 @@ handle_debug(isn_T *iptr, ectx_T *ectx)
if (end_lnum > iptr->isn_lnum)
{
ga_init2(&ga, sizeof(char_u *), 10);
- for (lnum = iptr->isn_lnum; lnum < end_lnum; ++lnum)
+ for (lnum = iptr->isn_lnum; lnum < end_lnum
+ && lnum <= ufunc->uf_lines.ga_len; ++lnum)
{
char_u *p = ((char_u **)ufunc->uf_lines.ga_data)[lnum - 1];