src/nvim/drawline.c

@@ -1483,13 +1483,16 @@ int win_line(win_T *wp, linenr_T lnum, int startrow, int endrow, int col_rows, s
     }
 
     // Call it here since we need to invalidate the line pointer anyway.
-    decor_providers_invoke_line(wp, lnum - 1, &has_decor);
+    bool added_decor = false;
+    decor_providers_invoke_line(wp, lnum - 1, &added_decor);
+    has_decor |= added_decor;
 
     decor_provider_end_col = invoke_range_next(wp, lnum, col, rem_vcols + 1, &has_decor);
 
     line = ml_get_buf(wp->w_buffer, lnum);
     ptr = line + col;
   }
+
   if (has_decor) {
     extra_check = true;
   }
@@ -3036,16 +3039,18 @@ static int invoke_range_next(win_T *wp, int lnum, colnr_T begin_col, colnr_T col
   int const line_len = ml_get_buf_len(wp->w_buffer, lnum);
   col_off = MAX(col_off, 1);
 
+  bool added_decor = false;
   colnr_T new_col;
   if (col_off <= line_len - begin_col) {
     int end_col = begin_col + col_off;
     end_col += mb_off_next(line, line + end_col);
-    decor_providers_invoke_range(wp, lnum - 1, begin_col, lnum - 1, end_col, has_decor);
+    decor_providers_invoke_range(wp, lnum - 1, begin_col, lnum - 1, end_col, &added_decor);
     new_col = end_col;
   } else {
-    decor_providers_invoke_range(wp, lnum - 1, begin_col, lnum, 0, has_decor);
+    decor_providers_invoke_range(wp, lnum - 1, begin_col, lnum, 0, &added_decor);
     new_col = INT_MAX;
   }
 
+  *has_decor |= added_decor;
   return new_col;
 }

src/nvim/lua/treesitter.c

@@ -1291,23 +1291,24 @@ static inline bool set_uint32(lua_State *L, int idx, char const *name, uint32_t
   FUNC_ATTR_ALWAYS_INLINE FUNC_ATTR_NONNULL_ALL
 {
   lua_getfield(L, idx, name);
-  if (lua_isnil(L, -1)) {
-    lua_pop(L, 1);
-    return false;
-  }
 
+  if (!lua_isnil(L, -1)) {
     int64_t value = lua_tointeger(L, -1);
-  lua_pop(L, 1);
-
     if (value < 0U) {
       *res = 0U;
+      return true;
     } else if (value > UINT32_MAX) {
       *res = UINT32_MAX;
+      return true;
     } else {
       *res = (uint32_t)value;
-  }
       return true;
     }
+  }
+  lua_pop(L, 1);
+
+  return false;
+}
 
 int tslua_push_querycursor(lua_State *L)
 {

test/benchmark/decor_spec.lua

@@ -8,7 +8,7 @@ describe('decor perf', function()
   it('can handle long lines', function()
     Screen.new(100, 101)
 
-    local result = exec_lua(function()
+    local result = exec_lua [==[
       local ephemeral_pattern = {
         { 0, 4, 'Comment', 11 },
         { 0, 3, 'Keyword', 12 },
@@ -69,7 +69,7 @@ describe('decor perf', function()
 
       local total = {}
       local provider = {}
-      for _ = 1, 100 do
+      for i = 1, 100 do
         local tic = vim.uv.hrtime()
         vim.cmd'redraw!'
         local toc = vim.uv.hrtime()
@@ -78,7 +78,7 @@ describe('decor perf', function()
       end
 
       return { total, provider }
-    end)
+    ]==]
 
     local total, provider = unpack(result)
     table.sort(total)
@@ -102,14 +102,14 @@ describe('decor perf', function()
   it('can handle long lines with treesitter highlighting', function()
     Screen.new(100, 51)
 
-    local result = exec_lua(function()
+    local result = exec_lua [==[
       local long_line = 'local a = { ' .. ('a = 5, '):rep(2000) .. '}'
       vim.api.nvim_buf_set_lines(0, 0, 0, false, { long_line })
       vim.api.nvim_win_set_cursor(0, { 1, 0 })
       vim.treesitter.start(0, 'lua')
 
       local total = {}
-      for _ = 1, 50 do
+      for i = 1, 50 do
         local tic = vim.uv.hrtime()
         vim.cmd'redraw!'
         local toc = vim.uv.hrtime()
@@ -117,7 +117,7 @@ describe('decor perf', function()
       end
 
       return { total }
-    end)
+    ]==]
 
     local total = unpack(result)
     table.sort(total)

test/benchmark/treesitter_spec.lua

@@ -49,10 +49,11 @@ describe('treesitter perf', function()
     ]]
   end)
 
-  local function test_long_line(_pos, _wrap, _line, grid)
+  local function test_long_line(pos, wrap, line, grid)
     local screen = Screen.new(20, 11)
 
-    local result = exec_lua(function(...)
+    local result = exec_lua(
+      [==[
         local pos, wrap, line = ...
 
         vim.api.nvim_buf_set_lines(0, 0, 0, false, { line })
@@ -62,7 +63,7 @@ describe('treesitter perf', function()
         vim.treesitter.start(0, 'lua')
 
         local total = {}
-      for _ = 1, 100 do
+        for i = 1, 100 do
           local tic = vim.uv.hrtime()
           vim.cmd'redraw!'
           local toc = vim.uv.hrtime()
@@ -70,7 +71,11 @@ describe('treesitter perf', function()
         end
 
         return { total }
-    end, _pos, _wrap, _line)
+      ]==],
+      pos,
+      wrap,
+      line
+    )
 
     screen:expect({ grid = grid or '' })
 

test/functional/ui/decorations_spec.lua

@@ -716,44 +716,46 @@ describe('decorations providers', function()
     setup_screen(screen)
 
     local function record()
-      exec_lua(function()
-        _G.p_min = { math.huge, math.huge }
-        _G.p_max = { -math.huge, -math.huge }
-        function _G.pos_gt(a, b)
+      exec_lua [[
+        p_min = { math.huge, math.huge }
+        p_max = { -math.huge, -math.huge }
+        function pos_gt(a, b)
           return a[1] > b[1] or (a[1] == b[1] and a[2] > b[2])
         end
-        function _G.pos_lt(a, b)
+        function pos_lt(a, b)
           return a[1] < b[1] or (a[1] == b[1] and a[2] < b[2])
         end
-      end)
+      ]]
       setup_provider [[
         local function on_do(kind, _, bufnr, br, bc, er, ec)
           if kind == 'range' then
             local b = { br, bc }
             local e = { er, ec }
-            if _G.pos_gt(_G.p_min, b) then
-              _G.p_min = b
+            if pos_gt(p_min, b) then
+              p_min = b
             end
-            if _G.pos_lt(_G.p_max, e) then
-              _G.p_max = e
+            if pos_lt(p_max, e) then
+              p_max = e
             end
           end
         end
       ]]
     end
     local function check(min, max)
-      local p_min = exec_lua('return _G.p_min')
-      assert(
-        p_min[1] < min[1] or (p_min[1] == min[1] and p_min[2] <= min[2]),
+      local function pos_gt(a, b)
+        return a[1] > b[1] or (a[1] == b[1] and a[2] > b[2])
+      end
+      local function pos_lt(a, b)
+        return a[1] < b[1] or (a[1] == b[1] and a[2] < b[2])
+      end
+      local p_min = exec_lua('return p_min')
+      assert(not pos_gt(p_min, min),
         "minimum position " .. vim.inspect(p_min)
-        .. " should be before the first char"
-      )
-      local p_max = exec_lua('return _G.p_max')
-      assert(
-        p_max[1] > max[1] or (p_max[1] == max[1] and p_max[2] >= max[2]),
+        .. " should be before the first char")
+      local p_max = exec_lua('return p_max')
+      assert(not pos_lt(p_max, max),
         "maximum position " .. vim.inspect(p_max)
-        .. " should be on or after the last char"
-      )
+        .. " should be on or after the last char")
     end
 
     -- Multiple lines.