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perf(extmarks): don't handle inline virt_text if there is none (#24322)

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Extreme testcase:
```lua
vim.fn.setline(1, 'foobar')
local ns = vim.api.nvim_create_namespace('')
for _ = 1, 100000 do
  vim.api.nvim_buf_set_extmark(0, ns, 0, 3, {})
end
local start_time = vim.loop.hrtime()
vim.fn.virtcol('$')
local stop_time = vim.loop.hrtime()
print(stop_time - start_time)
```
Before #20130: 31696
On master branch: 26191344
After this PR: 37692
This commit is contained in:
zeertzjq 2023-07-12 10:38:53 +08:00 committed by GitHub
parent bf52fb7193
commit ef94fb69c6
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 2 additions and 2 deletions
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2
src/nvim/drawline.c
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@ -1831,7 +1831,7 @@ int win_line(win_T *wp, linenr_T lnum, int startrow, int endrow, bool number_onl
&& wlv.vcol == wp->w_virtcol));
extmark_attr = decor_redraw_col(wp, (colnr_T)v, wlv.off, selected, &decor_state);
if (!has_fold) {
if (!has_fold && wp->w_buffer->b_virt_text_inline > 0) {
handle_inline_virtual_text(wp, &wlv, v);
if (wlv.n_extra > 0 && wlv.virt_inline_hl_mode <= kHlModeReplace) {
// restore search_attr and area_attr when n_extra is down to zero

2
src/nvim/plines.c
View File

@ -329,7 +329,7 @@ void init_chartabsize_arg(chartabsize_T *cts, win_T *wp, linenr_T lnum, colnr_T
cts->cts_has_virt_text = false;
cts->cts_row = lnum - 1;
if (cts->cts_row >= 0) {
if (cts->cts_row >= 0 && wp->w_buffer->b_virt_text_inline > 0) {
marktree_itr_get(wp->w_buffer->b_marktree, cts->cts_row, 0, cts->cts_iter);
mtkey_t mark = marktree_itr_current(cts->cts_iter);
if (mark.pos.row == cts->cts_row) {