patch 9.0.0432: crash when using for loop variable in closure
Problem: Crash when using for loop variable in closure.
Solution: Check that the variable wasn't deleted. (issue #11094)
diff --git a/src/testdir/dumps/Test_vim9_closure_fails.dump b/src/testdir/dumps/Test_vim9_closure_fails.dump
new file mode 100644
index 0000000..1189a3a
--- /dev/null
+++ b/src/testdir/dumps/Test_vim9_closure_fails.dump
@@ -0,0 +1,6 @@
+|~+0#4040ff13#ffffff0| @73
+|~| @73
+|E+0#ffffff16#e000002|r@1|o|r| |d|e|t|e|c|t|e|d| |w|h|i|l|e| |p|r|o|c|e|s@1|i|n|g| |f|u|n|c|t|i|o|n| |<|l|a|m|b|d|a|>|1|:| +0#0000000#ffffff0@23
+|l+0#af5f00255&|i|n|e| @3|1|:| +0#0000000&@64
+|E+0#ffffff16#e000002|1|3|0|2|:| |S|c|r|i|p|t| |v|a|r|i|a|b|l|e| |w|a|s| |d|e|l|e|t|e|d| +0#0000000#ffffff0@40
+|P+0#00e0003&|r|e|s@1| |E|N|T|E|R| |o|r| |t|y|p|e| |c|o|m@1|a|n|d| |t|o| |c|o|n|t|i|n|u|e> +0#0000000&@35
diff --git a/src/testdir/test_vim9_func.vim b/src/testdir/test_vim9_func.vim
index fce215e..70a71ea 100644
--- a/src/testdir/test_vim9_func.vim
+++ b/src/testdir/test_vim9_func.vim
@@ -2943,6 +2943,30 @@
v9.CheckScriptFailure(lines, 'E1012:')
enddef
+def Run_Test_closure_in_for_loop_fails()
+ var lines =<< trim END
+ vim9script
+ for n in [0]
+ timer_start(10, (_) => {
+ echo n
+ })
+ endfor
+ END
+ writefile(lines, 'XTest_closure_fails', 'D')
+
+ # Check that an error shows
+ var buf = g:RunVimInTerminal('-S XTest_closure_fails', {'rows': 6})
+ g:VerifyScreenDump(buf, 'Test_vim9_closure_fails', {})
+
+ # clean up
+ g:StopVimInTerminal(buf)
+enddef
+
+func Test_closure_in_for_loop_fails()
+ CheckScreendump
+ call Run_Test_closure_in_for_loop_fails()
+endfunc
+
def Test_global_closure()
var lines =<< trim END
vim9script
@@ -3321,7 +3345,7 @@
enddef
defcompile
END
- writefile(lines, 'XTest_silent_echo')
+ writefile(lines, 'XTest_silent_echo', 'D')
# Check that the balloon shows up after a mouse move
var buf = g:RunVimInTerminal('-S XTest_silent_echo', {'rows': 6})
@@ -3330,7 +3354,6 @@
# clean up
g:StopVimInTerminal(buf)
- delete('XTest_silent_echo')
enddef
def SilentlyError()