commit e84c773d42e8b6ef0f8ae9b6c7312e0fd47909af
author Luuk van Baal <luukvbaal@gmail.com> Wed May 31 18:57:36 2023 +0100
committer Bram Moolenaar <Bram@vim.org> Wed May 31 18:57:36 2023 +0100
tree 451c2f6769fb90c496219d08413b146d154938cb
parent 68ebcee0237d927dd5386073499162389d4d708a

patch 9.0.1595: line pointer becomes invalid when using spell checking

Problem:    Line pointer becomes invalid when using spell checking.
Solution:   Call ml_get() at the right places. (Luuk van Baal, closes #12456)

src/testdir/dumps/Test_spell_10.dump

diff --git a/src/testdir/dumps/Test_spell_10.dump b/src/testdir/dumps/Test_spell_10.dump
new file mode 100644
index 0000000..ce18847
--- /dev/null
+++ b/src/testdir/dumps/Test_spell_10.dump
@@ -0,0 +1,8 @@
+| +0&#ffffff0@2|T|h|i|s| |l|i|n|e| |h|a|s| |a| |s+0&#ffd7d7255|e|p|l@1| +0&#ffffff0|e|r@1|o|r|.| |a+0&#5fd7ff255|n|d| +0&#ffffff0|m|i|s@1|i|n|g| |c|a|p|s| |a|n|d| |t|r|a|i|l|i|n|g| |s|p|a|c|e|s|.| @5
+|a+0&#5fd7ff255|n|o|t|h|e|r| +0&#ffffff0|m|i|s@1|i|n|g| |c|a|p| |h|e|r|e| @50
+|++0#0000e05#a8a8a8255|-@1| @1|2| |l|i|n|e|s|:| |N|o|t|-@57
+> +0#0000000#ffffff0@74
+@75
+|a+0&#5fd7ff255|n|d| +0&#ffffff0|h|e|r|e|.| @65
+|~+0#4040ff13&| @73
+| +0#0000000&@56|5|,|0|-|1| @8|A|l@1| 

src/testdir/dumps/Test_spell_9.dump

diff --git a/src/testdir/dumps/Test_spell_9.dump b/src/testdir/dumps/Test_spell_9.dump
new file mode 100644
index 0000000..9d283ce
--- /dev/null
+++ b/src/testdir/dumps/Test_spell_9.dump
@@ -0,0 +1,8 @@
+| +0&#ffffff0@2|T|h|i|s| |l|i|n|e| |h|a|s| |a| |s+0&#ffd7d7255|e|p|l@1| +0&#ffffff0|e|r@1|o|r|.| |a+0&#5fd7ff255|n|d| +0&#ffffff0|m|i|s@1|i|n|g| |c|a|p|s| |a|n|d| |t|r|a|i|l|i|n|g| |s|p|a|c|e|s|.| @5
+|a+0&#5fd7ff255|n|o|t|h|e|r| +0&#ffffff0|m|i|s@1|i|n|g| |c|a|p| |h|e|r|e| @50
+|++0#0000e05#a8a8a8255|-@1| @1|2| |l|i|n|e|s|:| |N|o|t|-@57
+> +0#0000000#ffffff0@74
+|a+0&#5fd7ff255|n|d| +0&#ffffff0|h|e|r|e|.| @65
+|~+0#4040ff13&| @73
+|~| @73
+| +0#0000000&@56|5|,|0|-|1| @8|A|l@1| 

src/testdir/test_spell.vim

diff --git a/src/testdir/test_spell.vim b/src/testdir/test_spell.vim
index 350077a..a42d4c7 100644
--- a/src/testdir/test_spell.vim
+++ b/src/testdir/test_spell.vim
@@ -958,6 +958,7 @@
   CheckScreendump
 
   let lines =<< trim END
+       call test_override('alloc_lines', 1)
        call setline(1, [
              \ "This is some text without any spell errors.  Everything",
              \ "should just be black, nothing wrong here.",
@@ -980,6 +981,7 @@
   CheckScreendump
 
   let lines =<< trim END
+       call test_override('alloc_lines', 1)
        call setline(1, [
              \ "   This line has a sepll error. and missing caps and trailing spaces.   ",
              \ "another missing cap here.",
@@ -1019,6 +1021,14 @@
   call term_sendkeys(buf, "\<C-E>\<C-L>")
   call VerifyScreenDump(buf, 'Test_spell_8', {})
 
+  " Adding an empty line does not remove Cap in "mod_bot" area
+  call term_sendkeys(buf, "zbO\<Esc>")
+  call VerifyScreenDump(buf, 'Test_spell_9', {})
+
+  " Multiple empty lines does not remove Cap in the line after
+  call term_sendkeys(buf, "O\<Esc>\<C-L>")
+  call VerifyScreenDump(buf, 'Test_spell_10', {})
+
   " clean up
   call StopVimInTerminal(buf)
 endfunc
@@ -1027,6 +1037,7 @@
   CheckScreendump
 
   let lines =<< trim END
+       call test_override('alloc_lines', 1)
        call setline(1, [
              \ "test "->repeat(20),
              \ "",