1 files changed, 4 insertions, 62 deletions

diff --git a/src/nvim/buffer.c b/src/nvim/buffer.c
index 8a594dea92..b5fac15af6 100644
--- a/src/nvim/buffer.c
+++ b/src/nvim/buffer.c
@@ -750,6 +750,8 @@ void buf_clear(void)
 {
   linenr_T line_count = curbuf->b_ml.ml_line_count;
   extmark_free_all(curbuf);   // delete any extmarks
+  map_destroy(int, curbuf->b_signcols.invalid);
+  *curbuf->b_signcols.invalid = (Map(int, SignRange)) MAP_INIT;
   while (!(curbuf->b_ml.ml_flags & ML_EMPTY)) {
     ml_delete(1, false);
   }
@@ -920,6 +922,8 @@ static void free_buffer_stuff(buf_T *buf, int free_flags)
   }
   uc_clear(&buf->b_ucmds);               // clear local user commands
   extmark_free_all(buf);                 // delete any extmarks
+  map_destroy(int, buf->b_signcols.invalid);
+  *buf->b_signcols.invalid = (Map(int, SignRange)) MAP_INIT;
   map_clear_mode(buf, MAP_ALL_MODES, true, false);  // clear local mappings
   map_clear_mode(buf, MAP_ALL_MODES, true, true);   // clear local abbrevs
   XFREE_CLEAR(buf->b_start_fenc);
@@ -1844,7 +1848,6 @@ buf_T *buflist_new(char *ffname_arg, char *sfname_arg, linenr_T lnum, int flags)
     buf = xcalloc(1, sizeof(buf_T));
     // init b: variables
     buf->b_vars = tv_dict_alloc();
-    buf->b_signcols.sentinel = 0;
     init_var_dict(buf->b_vars, &buf->b_bufvar, VAR_SCOPE);
     buf_init_changedtick(buf);
   }
@@ -4026,67 +4029,6 @@ char *buf_spname(buf_T *buf)
   return NULL;
 }
 
-/// Invalidate the signcolumn if needed after deleting a sign ranging from line1 to line2.
-void buf_signcols_del_check(buf_T *buf, linenr_T line1, linenr_T line2)
-{
-  linenr_T sent = buf->b_signcols.sentinel;
-  if (sent >= line1 && sent <= line2) {
-    // When removed sign overlaps the sentinel line, entire buffer needs to be checked.
-    buf->b_signcols.sentinel = buf->b_signcols.size = 0;
-  }
-}
-
-/// Invalidate the signcolumn if needed after adding a sign ranging from line1 to line2.
-void buf_signcols_add_check(buf_T *buf, linenr_T line1, linenr_T line2)
-{
-  if (!buf->b_signcols.sentinel) {
-    return;
-  }
-
-  linenr_T sent = buf->b_signcols.sentinel;
-  if (sent >= line1 && sent <= line2) {
-    // If added sign overlaps sentinel line, increment without invalidating.
-    if (buf->b_signcols.size == buf->b_signcols.max) {
-      buf->b_signcols.max++;
-    }
-    buf->b_signcols.size++;
-    return;
-  }
-
-  if (line1 < buf->b_signcols.invalid_top) {
-    buf->b_signcols.invalid_top = line1;
-  }
-  if (line2 > buf->b_signcols.invalid_bot) {
-    buf->b_signcols.invalid_bot = line2;
-  }
-}
-
-int buf_signcols(buf_T *buf, int max)
-{
-  if (!buf->b_signs_with_text) {
-    buf->b_signcols.size = 0;
-  } else if (max <= 1 && buf->b_signs_with_text >= (size_t)max) {
-    buf->b_signcols.size = max;
-  } else {
-    linenr_T sent = buf->b_signcols.sentinel;
-    if (!sent || max > buf->b_signcols.max) {
-      // Recheck if the window scoped maximum 'signcolumn' is greater than the
-      // previous maximum or if there is no sentinel line yet.
-      buf->b_signcols.invalid_top = sent ? sent : 1;
-      buf->b_signcols.invalid_bot = sent ? sent : buf->b_ml.ml_line_count;
-    }
-
-    if (buf->b_signcols.invalid_bot) {
-      decor_validate_signcols(buf, max);
-    }
-  }
-
-  buf->b_signcols.max = max;
-  buf->b_signcols.invalid_top = MAXLNUM;
-  buf->b_signcols.invalid_bot = 0;
-  return buf->b_signcols.size;
-}
-
 /// Get "buf->b_fname", use "[No Name]" if it is NULL.
 char *buf_get_fname(const buf_T *buf)
   FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL