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fix(lsp): reapplying already-applied hints #24114

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Problem:
The decoration provider clears the whole buffer then redraws all the hints every
time the window was redrawn. This may lead to an infinite loop.

Solution:
Store the last applied version for a line and only clear and redraw the line if
the buffer version has changed.
This commit is contained in:
Chinmay Dalal 2023-06-23 17:19:54 +05:30 committed by GitHub
parent 3688735c2b
commit 94a904b453
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 29 additions and 25 deletions
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54
runtime/lua/vim/lsp/_inlay_hint.lua
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@ -8,6 +8,7 @@ local M = {}
---@field client_hint table<integer, table<integer, lsp.InlayHint[]>> client_id -> (lnum -> hints)
---@field enabled boolean Whether inlay hints are enabled for the buffer
---@field timer uv.uv_timer_t? Debounce timer associated with the buffer
---@field applied table<integer, integer> Last version of hints applied to this line
---@type table<integer, lsp._inlay_hint.bufstate>
local bufstates = {}
@ -169,7 +170,7 @@ function M.enable(bufnr)
bufnr = resolve_bufnr(bufnr)
local bufstate = bufstates[bufnr]
if not (bufstate and bufstate.enabled) then
bufstates[bufnr] = { enabled = true, timer = nil }
bufstates[bufnr] = { enabled = true, timer = nil, applied = {} }
M.refresh({ bufnr = bufnr })
api.nvim_buf_attach(bufnr, true, {
on_lines = function(_, cb_bufnr)
@ -238,35 +239,38 @@ api.nvim_set_decoration_provider(namespace, {
return
end
local hints_by_client = bufstate.client_hint
api.nvim_buf_clear_namespace(bufnr, namespace, 0, -1)
for lnum = topline, botline do
for _, hints_by_lnum in pairs(hints_by_client) do
local line_hints = hints_by_lnum[lnum] or {}
for _, hint in pairs(line_hints) do
local text = ''
if type(hint.label) == 'string' then
text = hint.label
else
for _, part in ipairs(hint.label) do
text = text .. part.value
if bufstate.applied[lnum] ~= bufstate.version then
api.nvim_buf_clear_namespace(bufnr, namespace, lnum, lnum + 1)
for _, hints_by_lnum in pairs(hints_by_client) do
local line_hints = hints_by_lnum[lnum] or {}
for _, hint in pairs(line_hints) do
local text = ''
if type(hint.label) == 'string' then
text = hint.label
else
for _, part in ipairs(hint.label) do
text = text .. part.value
end
end
local vt = {}
if hint.paddingLeft then
vt[#vt + 1] = { ' ' }
end
vt[#vt + 1] = { text, 'LspInlayHint' }
if hint.paddingRight then
vt[#vt + 1] = { ' ' }
end
api.nvim_buf_set_extmark(bufnr, namespace, lnum, hint.position.character, {
virt_text_pos = 'inline',
ephemeral = false,
virt_text = vt,
hl_mode = 'combine',
})
end
local vt = {}
if hint.paddingLeft then
vt[#vt + 1] = { ' ' }
end
vt[#vt + 1] = { text, 'LspInlayHint' }
if hint.paddingRight then
vt[#vt + 1] = { ' ' }
end
api.nvim_buf_set_extmark(bufnr, namespace, lnum, hint.position.character, {
virt_text_pos = 'inline',
ephemeral = false,
virt_text = vt,
hl_mode = 'combine',
})
end
bufstate.applied[lnum] = bufstate.version
end
end
end,