patch 9.0.1482: crash when textprop has a very large "padding" value
Problem: Crash when textprop has a very large "padding" value. (Yegappan
Lakshmanan)
Solution: Avoid the "after" count to go negative.
diff --git a/src/testdir/dumps/Test_prop_above_padding_1.dump b/src/testdir/dumps/Test_prop_above_padding_1.dump
new file mode 100644
index 0000000..1940542
--- /dev/null
+++ b/src/testdir/dumps/Test_prop_above_padding_1.dump
@@ -0,0 +1,8 @@
+> +0&#ffffff0@74
+|s|k|y| |i|s| |b|l|u|e| @63
+@74|…
+|o|c|e|a|n| |i|s| |b|l|u|e| @61
+|~+0#4040ff13&| @73
+|~| @73
+|~| @73
+| +0#0000000&@56|1|,|0|-|1| @8|A|l@1|
diff --git a/src/testdir/test_textprop.vim b/src/testdir/test_textprop.vim
index 9cd09bd..550a0e5 100644
--- a/src/testdir/test_textprop.vim
+++ b/src/testdir/test_textprop.vim
@@ -3199,6 +3199,26 @@
call StopVimInTerminal(buf)
endfunc
+func Test_prop_with_text_above_padding()
+ CheckRunVimInTerminal
+
+ let lines =<< trim END
+ vim9script
+
+ setlocal tabstop=8 noexpandtab
+ setline(1, ['', 'sky is blue', 'ocean is blue'])
+ prop_type_add('DiagVirtualText', {highlight: 'Search', override: true})
+ prop_add(3, 0, {text: "┌─ start", text_align: "above",
+ type: 'DiagVirtualText',
+ text_padding_left: 200})
+ END
+ call writefile(lines, 'XscriptAbovePadding', 'D')
+ let buf = RunVimInTerminal('-S XscriptAbovePadding', #{rows: 8})
+ call VerifyScreenDump(buf, 'Test_prop_above_padding_1', {})
+
+ call StopVimInTerminal(buf)
+endfunc
+
func Test_prop_above_with_indent()
new
call setline(1, ['first line', ' second line', ' line below'])