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feat(lsp): add more LSP defaults (#28500) 

- crn for rename
- crr for code actions
- gr for references
- <C-S> (in Insert mode) for signature help
This commit is contained in:
Gregory Anders 2024-04-26 11:12:49 -05:00 committed by GitHub
parent 9b028bd64f
commit 6888607415
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GPG Key ID: B5690EEEBB952194
6 changed files with 274 additions and 239 deletions
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4
runtime/doc/change.txt
View File

@ -281,6 +281,10 @@ gr{char} Replace the virtual characters under the cursor with
that have a special meaning in Insert mode, such as
most CTRL-keys, cannot be used.
*gr-default*
Mapped to |vim.lsp.buf.references()| by default.
|default-mappings|
*digraph-arg*
The argument for Normal mode commands like |r| and |t| is a single character.
When 'cpo' doesn't contain the 'D' flag, this character can also be entered

42
runtime/doc/lsp.txt
View File

@ -61,47 +61,41 @@ options are not restored when the LSP client is stopped or detached.
- |K| is mapped to |vim.lsp.buf.hover()| unless |'keywordprg'| is customized or
a custom keymap for `K` exists.
*crr* *v_crr* *crn* *i_CTRL-S*
Some keymaps are created unconditionally when Nvim starts:
- "crn" is mapped in Normal mode to |vim.lsp.buf.rename()|
- "crr" is mapped in Normal and Visual mode to |vim.lsp.buf.code_action()|
- "gr" is mapped in Normal mode to |vim.lsp.buf.references()| |gr-default|
- CTRL-S is mapped in Insert mode to |vim.lsp.buf.signature_help()|
If not wanted, these keymaps can be removed at any time using
|vim.keymap.del()| or |:unmap|.
*lsp-defaults-disable*
To override the above defaults, set or unset the options on |LspAttach|: >lua
vim.api.nvim_create_autocmd('LspAttach', {
callback = function(ev)
vim.bo[ev.buf].formatexpr = nil
vim.bo[ev.buf].omnifunc = nil
vim.keymap.del("n", "K", { buffer = ev.buf })
vim.keymap.del('n', 'K', { buffer = ev.buf })
end,
})
To use other LSP features like hover, rename, etc. you can set other keymaps
on |LspAttach|. Example: >lua
vim.api.nvim_create_autocmd('LspAttach', {
callback = function(args)
vim.keymap.set('n', 'K', vim.lsp.buf.hover, { buffer = args.buf })
end,
})
To use other LSP features, set keymaps on |LspAttach|. Not all language
servers provide the same capabilities. To ensure you only set keymaps if the
language server supports a feature, guard keymaps behind capability checks.
Example: >lua
The most common functions are:
- |vim.lsp.buf.hover()|
- |vim.lsp.buf.format()|
- |vim.lsp.buf.references()|
- |vim.lsp.buf.implementation()|
- |vim.lsp.buf.code_action()|
Not all language servers provide the same capabilities. To ensure you only set
keymaps if the language server supports a feature, you can guard the keymap
calls behind capability checks:
>lua
vim.api.nvim_create_autocmd('LspAttach', {
callback = function(args)
local client = vim.lsp.get_client_by_id(args.data.client_id)
if client.server_capabilities.hoverProvider then
vim.keymap.set('n', 'K', vim.lsp.buf.hover, { buffer = args.buf })
if client.supports_method('textDocument/implementation') then
vim.keymap.set('n', 'g<C-I>', vim.lsp.buf.implementation, { buffer = args.buf })
end
end,
})
<
To learn what capabilities are available you can run the following command in
a buffer with a started LSP client: >vim

11
runtime/doc/news.txt
View File

@ -408,6 +408,10 @@ The following changes to existing APIs or features add new behavior.
• 'comments' includes "fb:•".
• 'shortmess' includes the "C" flag.
• 'grepprg' defaults to using ripgrep if available.
• |crn| in Normal mode maps to |vim.lsp.buf.rename()|.
• |crr| in Normal and Visual mode maps to |vim.lsp.buf.code_action()|.
• "gr" in Normal mode maps to |vim.lsp.buf.references()| |gr-default|
• |i_CTRL-S| in Insert mode maps to |vim.lsp.buf.signature_help()|
• Automatic linting of treesitter query files (see |ft-query-plugin|).
Can be disabled via: >lua
vim.g.query_lint_on = {}
@ -438,9 +442,10 @@ The following changes to existing APIs or features add new behavior.
:call netrw#BrowseX(expand(exists("g:netrw_gx")? g:netrw_gx : '<cfile>'), netrw#CheckIfRemote())<CR>
• |vim.lsp.start()| now maps |K| to use |vim.lsp.buf.hover()| if the server
supports it, unless |'keywordprg'| was customized before calling
|vim.lsp.start()|.
• |vim.lsp.start()| now creates the following default keymaps (assuming the
server supports the feature):
- |K| in Normal mode maps to |vim.lsp.buf.hover()|, unless |'keywordprg'|
was customized before calling |vim.lsp.start()|.
• Terminal buffers started with no arguments (and use 'shell') close
automatically if the job exited without error, eliminating the (often

4
runtime/doc/vim_diff.txt
View File

@ -137,6 +137,10 @@ of these in your config by simply removing the mapping, e.g. ":unmap Y".
- * |v_star-default|
- gc |gc-default| |v_gc-default| |o_gc-default|
- gcc |gcc-default|
- |crn|
- |crr|
- gr |gr-default|
- <C-S> |i_CTRL-S|
- Nvim LSP client defaults |lsp-defaults|
- K |K-lsp-default|

450
runtime/lua/vim/_defaults.lua
View File

@ -144,6 +144,31 @@ do
end
vim.keymap.set({ 'o' }, 'gc', textobject_rhs, { desc = 'Comment textobject' })
end
--- Default maps for LSP functions.
---
--- These are mapped unconditionally to avoid confusion. If no server is attached, or if a server
--- does not support a capability, an error message is displayed rather than exhibiting different
--- behavior.
---
--- See |gr-default|, |crn|, |crr|, |i_CTRL-S|.
do
vim.keymap.set('n', 'crn', function()
vim.lsp.buf.rename()
end, { desc = 'vim.lsp.buf.rename()' })
vim.keymap.set({ 'n', 'v' }, 'crr', function()
vim.lsp.buf.code_action()
end, { desc = 'vim.lsp.buf.code_action()' })
vim.keymap.set('n', 'gr', function()
vim.lsp.buf.references()
end, { desc = 'vim.lsp.buf.references()' })
vim.keymap.set('i', '<C-S>', function()
vim.lsp.buf.signature_help()
end, { desc = 'vim.lsp.buf.signature_help()' })
end
end
--- Default menus
@ -243,230 +268,140 @@ do
vim.notify(('W325: Ignoring swapfile from Nvim process %d'):format(info.pid))
end,
})
end
-- Only do the following when the TUI is attached
local tty = nil
for _, ui in ipairs(vim.api.nvim_list_uis()) do
if ui.chan == 1 and ui.stdout_tty then
tty = ui
break
end
end
if tty then
local group = vim.api.nvim_create_augroup('nvim_tty', {})
--- Set an option after startup (so that OptionSet is fired), but only if not
--- already set by the user.
---
--- @param option string Option name
--- @param value any Option value
local function setoption(option, value)
if vim.api.nvim_get_option_info2(option, {}).was_set then
-- Don't do anything if option is already set
return
end
-- Wait until Nvim is finished starting to set the option to ensure the
-- OptionSet event fires.
if vim.v.vim_did_enter == 1 then
--- @diagnostic disable-next-line:no-unknown
vim.o[option] = value
else
vim.api.nvim_create_autocmd('VimEnter', {
group = group,
once = true,
nested = true,
callback = function()
setoption(option, value)
end,
})
-- Only do the following when the TUI is attached
local tty = nil
for _, ui in ipairs(vim.api.nvim_list_uis()) do
if ui.chan == 1 and ui.stdout_tty then
tty = ui
break
end
end
--- Guess value of 'background' based on terminal color.
---
--- We write Operating System Command (OSC) 11 to the terminal to request the
--- terminal's background color. We then wait for a response. If the response
--- matches `rgba:RRRR/GGGG/BBBB/AAAA` where R, G, B, and A are hex digits, then
--- compute the luminance[1] of the RGB color and classify it as light/dark
--- accordingly. Note that the color components may have anywhere from one to
--- four hex digits, and require scaling accordingly as values out of 4, 8, 12,
--- or 16 bits. Also note the A(lpha) component is optional, and is parsed but
--- ignored in the calculations.
---
--- [1] https://en.wikipedia.org/wiki/Luma_%28video%29
do
--- Parse a string of hex characters as a color.
if tty then
local group = vim.api.nvim_create_augroup('nvim_tty', {})
--- Set an option after startup (so that OptionSet is fired), but only if not
--- already set by the user.
---
--- The string can contain 1 to 4 hex characters. The returned value is
--- between 0.0 and 1.0 (inclusive) representing the intensity of the color.
---
--- For instance, if only a single hex char "a" is used, then this function
--- returns 0.625 (10 / 16), while a value of "aa" would return 0.664 (170 /
--- 256).
---
--- @param c string Color as a string of hex chars
--- @return number? Intensity of the color
local function parsecolor(c)
if #c == 0 or #c > 4 then
return nil
--- @param option string Option name
--- @param value any Option value
local function setoption(option, value)
if vim.api.nvim_get_option_info2(option, {}).was_set then
-- Don't do anything if option is already set
return
end
local val = tonumber(c, 16)
if not val then
return nil
-- Wait until Nvim is finished starting to set the option to ensure the
-- OptionSet event fires.
if vim.v.vim_did_enter == 1 then
--- @diagnostic disable-next-line:no-unknown
vim.o[option] = value
else
vim.api.nvim_create_autocmd('VimEnter', {
group = group,
once = true,
nested = true,
callback = function()
setoption(option, value)
end,
})
end
local max = tonumber(string.rep('f', #c), 16)
return val / max
end
--- Parse an OSC 11 response
--- Guess value of 'background' based on terminal color.
---
--- Either of the two formats below are accepted:
--- We write Operating System Command (OSC) 11 to the terminal to request the
--- terminal's background color. We then wait for a response. If the response
--- matches `rgba:RRRR/GGGG/BBBB/AAAA` where R, G, B, and A are hex digits, then
--- compute the luminance[1] of the RGB color and classify it as light/dark
--- accordingly. Note that the color components may have anywhere from one to
--- four hex digits, and require scaling accordingly as values out of 4, 8, 12,
--- or 16 bits. Also note the A(lpha) component is optional, and is parsed but
--- ignored in the calculations.
---
--- OSC 11 ; rgb:<red>/<green>/<blue>
---
--- or
---
--- OSC 11 ; rgba:<red>/<green>/<blue>/<alpha>
---
--- where
---
--- <red>, <green>, <blue>, <alpha> := h | hh | hhh | hhhh
---
--- The alpha component is ignored, if present.
---
--- @param resp string OSC 11 response
--- @return string? Red component
--- @return string? Green component
--- @return string? Blue component
local function parseosc11(resp)
local r, g, b
r, g, b = resp:match('^\027%]11;rgb:(%x+)/(%x+)/(%x+)$')
if not r and not g and not b then
local a
r, g, b, a = resp:match('^\027%]11;rgba:(%x+)/(%x+)/(%x+)/(%x+)$')
if not a or #a > 4 then
return nil, nil, nil
--- [1] https://en.wikipedia.org/wiki/Luma_%28video%29
do
--- Parse a string of hex characters as a color.
---
--- The string can contain 1 to 4 hex characters. The returned value is
--- between 0.0 and 1.0 (inclusive) representing the intensity of the color.
---
--- For instance, if only a single hex char "a" is used, then this function
--- returns 0.625 (10 / 16), while a value of "aa" would return 0.664 (170 /
--- 256).
---
--- @param c string Color as a string of hex chars
--- @return number? Intensity of the color
local function parsecolor(c)
if #c == 0 or #c > 4 then
return nil
end
local val = tonumber(c, 16)
if not val then
return nil
end
local max = tonumber(string.rep('f', #c), 16)
return val / max
end
if r and g and b and #r <= 4 and #g <= 4 and #b <= 4 then
return r, g, b
end
return nil, nil, nil
end
local timer = assert(vim.uv.new_timer())
local id = vim.api.nvim_create_autocmd('TermResponse', {
group = group,
nested = true,
callback = function(args)
local resp = args.data ---@type string
local r, g, b = parseosc11(resp)
if r and g and b then
local rr = parsecolor(r)
local gg = parsecolor(g)
local bb = parsecolor(b)
if rr and gg and bb then
local luminance = (0.299 * rr) + (0.587 * gg) + (0.114 * bb)
local bg = luminance < 0.5 and 'dark' or 'light'
setoption('background', bg)
--- Parse an OSC 11 response
---
--- Either of the two formats below are accepted:
---
--- OSC 11 ; rgb:<red>/<green>/<blue>
---
--- or
---
--- OSC 11 ; rgba:<red>/<green>/<blue>/<alpha>
---
--- where
---
--- <red>, <green>, <blue>, <alpha> := h | hh | hhh | hhhh
---
--- The alpha component is ignored, if present.
---
--- @param resp string OSC 11 response
--- @return string? Red component
--- @return string? Green component
--- @return string? Blue component
local function parseosc11(resp)
local r, g, b
r, g, b = resp:match('^\027%]11;rgb:(%x+)/(%x+)/(%x+)$')
if not r and not g and not b then
local a
r, g, b, a = resp:match('^\027%]11;rgba:(%x+)/(%x+)/(%x+)/(%x+)$')
if not a or #a > 4 then
return nil, nil, nil
end
return true
end
end,
})
io.stdout:write('\027]11;?\007')
if r and g and b and #r <= 4 and #g <= 4 and #b <= 4 then
return r, g, b
end
timer:start(1000, 0, function()
-- Delete the autocommand if no response was received
vim.schedule(function()
-- Suppress error if autocommand has already been deleted
pcall(vim.api.nvim_del_autocmd, id)
end)
if not timer:is_closing() then
timer:close()
return nil, nil, nil
end
end)
end
--- If the TUI (term_has_truecolor) was able to determine that the host
--- terminal supports truecolor, enable 'termguicolors'. Otherwise, query the
--- terminal (using both XTGETTCAP and SGR + DECRQSS). If the terminal's
--- response indicates that it does support truecolor enable 'termguicolors',
--- but only if the user has not already disabled it.
do
if tty.rgb then
-- The TUI was able to determine truecolor support
setoption('termguicolors', true)
else
local caps = {} ---@type table<string, boolean>
require('vim.termcap').query({ 'Tc', 'RGB', 'setrgbf', 'setrgbb' }, function(cap, found)
if not found then
return
end
caps[cap] = true
if caps.Tc or caps.RGB or (caps.setrgbf and caps.setrgbb) then
setoption('termguicolors', true)
end
end)
local timer = assert(vim.uv.new_timer())
-- Arbitrary colors to set in the SGR sequence
local r = 1
local g = 2
local b = 3
local id = vim.api.nvim_create_autocmd('TermResponse', {
group = group,
nested = true,
callback = function(args)
local resp = args.data ---@type string
local decrqss = resp:match('^\027P1%$r([%d;:]+)m$')
local r, g, b = parseosc11(resp)
if r and g and b then
local rr = parsecolor(r)
local gg = parsecolor(g)
local bb = parsecolor(b)
if decrqss then
-- The DECRQSS SGR response first contains attributes separated by
-- semicolons, followed by the SGR itself with parameters separated
-- by colons. Some terminals include "0" in the attribute list
-- unconditionally; others do not. Our SGR sequence did not set any
-- attributes, so there should be no attributes in the list.
local attrs = vim.split(decrqss, ';')
if #attrs ~= 1 and (#attrs ~= 2 or attrs[1] ~= '0') then
return false
end
-- The returned SGR sequence should begin with 48:2
local sgr = attrs[#attrs]:match('^48:2:([%d:]+)$')
if not sgr then
return false
end
-- The remaining elements of the SGR sequence should be the 3 colors
-- we set. Some terminals also include an additional parameter
-- (which can even be empty!), so handle those cases as well
local params = vim.split(sgr, ':')
if #params ~= 3 and (#params ~= 4 or (params[1] ~= '' and params[1] ~= '1')) then
return true
end
if
tonumber(params[#params - 2]) == r
and tonumber(params[#params - 1]) == g
and tonumber(params[#params]) == b
then
setoption('termguicolors', true)
if rr and gg and bb then
local luminance = (0.299 * rr) + (0.587 * gg) + (0.114 * bb)
local bg = luminance < 0.5 and 'dark' or 'light'
setoption('background', bg)
end
return true
@ -474,16 +409,7 @@ if tty then
end,
})
-- Write SGR followed by DECRQSS. This sets the background color then
-- immediately asks the terminal what the background color is. If the
-- terminal responds to the DECRQSS with the same SGR sequence that we
-- sent then the terminal supports truecolor.
local decrqss = '\027P$qm\027\\'
if os.getenv('TMUX') then
decrqss = string.format('\027Ptmux;%s\027\\', decrqss:gsub('\027', '\027\027'))
end
-- Reset attributes first, as other code may have set attributes.
io.stdout:write(string.format('\027[0m\027[48;2;%d;%d;%dm%s', r, g, b, decrqss))
io.stdout:write('\027]11;?\007')
timer:start(1000, 0, function()
-- Delete the autocommand if no response was received
@ -497,13 +423,115 @@ if tty then
end
end)
end
--- If the TUI (term_has_truecolor) was able to determine that the host
--- terminal supports truecolor, enable 'termguicolors'. Otherwise, query the
--- terminal (using both XTGETTCAP and SGR + DECRQSS). If the terminal's
--- response indicates that it does support truecolor enable 'termguicolors',
--- but only if the user has not already disabled it.
do
if tty.rgb then
-- The TUI was able to determine truecolor support
setoption('termguicolors', true)
else
local caps = {} ---@type table<string, boolean>
require('vim.termcap').query({ 'Tc', 'RGB', 'setrgbf', 'setrgbb' }, function(cap, found)
if not found then
return
end
caps[cap] = true
if caps.Tc or caps.RGB or (caps.setrgbf and caps.setrgbb) then
setoption('termguicolors', true)
end
end)
local timer = assert(vim.uv.new_timer())
-- Arbitrary colors to set in the SGR sequence
local r = 1
local g = 2
local b = 3
local id = vim.api.nvim_create_autocmd('TermResponse', {
group = group,
nested = true,
callback = function(args)
local resp = args.data ---@type string
local decrqss = resp:match('^\027P1%$r([%d;:]+)m$')
if decrqss then
-- The DECRQSS SGR response first contains attributes separated by
-- semicolons, followed by the SGR itself with parameters separated
-- by colons. Some terminals include "0" in the attribute list
-- unconditionally; others do not. Our SGR sequence did not set any
-- attributes, so there should be no attributes in the list.
local attrs = vim.split(decrqss, ';')
if #attrs ~= 1 and (#attrs ~= 2 or attrs[1] ~= '0') then
return false
end
-- The returned SGR sequence should begin with 48:2
local sgr = attrs[#attrs]:match('^48:2:([%d:]+)$')
if not sgr then
return false
end
-- The remaining elements of the SGR sequence should be the 3 colors
-- we set. Some terminals also include an additional parameter
-- (which can even be empty!), so handle those cases as well
local params = vim.split(sgr, ':')
if #params ~= 3 and (#params ~= 4 or (params[1] ~= '' and params[1] ~= '1')) then
return true
end
if
tonumber(params[#params - 2]) == r
and tonumber(params[#params - 1]) == g
and tonumber(params[#params]) == b
then
setoption('termguicolors', true)
end
return true
end
end,
})
-- Write SGR followed by DECRQSS. This sets the background color then
-- immediately asks the terminal what the background color is. If the
-- terminal responds to the DECRQSS with the same SGR sequence that we
-- sent then the terminal supports truecolor.
local decrqss = '\027P$qm\027\\'
if os.getenv('TMUX') then
decrqss = string.format('\027Ptmux;%s\027\\', decrqss:gsub('\027', '\027\027'))
end
-- Reset attributes first, as other code may have set attributes.
io.stdout:write(string.format('\027[0m\027[48;2;%d;%d;%dm%s', r, g, b, decrqss))
timer:start(1000, 0, function()
-- Delete the autocommand if no response was received
vim.schedule(function()
-- Suppress error if autocommand has already been deleted
pcall(vim.api.nvim_del_autocmd, id)
end)
if not timer:is_closing() then
timer:close()
end
end)
end
end
end
end
--- Default 'grepprg' to ripgrep if available.
if vim.fn.executable('rg') == 1 then
-- Match :grep default, otherwise rg searches cwd by default
-- Use -uuu to make ripgrep not do its default filtering
vim.o.grepprg = 'rg --vimgrep -uuu $* ' .. (vim.fn.has('unix') == 1 and '/dev/null' or 'nul')
vim.o.grepformat = '%f:%l:%c:%m'
--- Default options
do
--- Default 'grepprg' to ripgrep if available.
if vim.fn.executable('rg') == 1 then
-- Match :grep default, otherwise rg searches cwd by default
-- Use -uuu to make ripgrep not do its default filtering
vim.o.grepprg = 'rg --vimgrep -uuu $* ' .. (vim.fn.has('unix') == 1 and '/dev/null' or 'nul')
vim.o.grepformat = '%f:%l:%c:%m'
end
end

2
runtime/lua/vim/lsp.lua
View File

@ -348,7 +348,7 @@ function lsp._set_defaults(client, bufnr)
and is_empty_or_default(bufnr, 'keywordprg')
and vim.fn.maparg('K', 'n', false, false) == ''
then
vim.keymap.set('n', 'K', vim.lsp.buf.hover, { buffer = bufnr })
vim.keymap.set('n', 'K', vim.lsp.buf.hover, { buffer = bufnr, desc = 'vim.lsp.buf.hover()' })
end
end)
if client.supports_method(ms.textDocument_diagnostic) then