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nvim: lua: lsp: Add support for peek definition 

Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
This commit is contained in:
Sanchayan Maity 2020-06-11 11:30:15 +05:30
parent ebd1bd566b
commit a2b8d386a0
1 changed files with 43 additions and 0 deletions
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43
nvim/.config/nvim/lua/lsp.lua
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@ -1,5 +1,47 @@
local nvim_lsp = require('nvim_lsp')
-- Taken from https://www.reddit.com/r/neovim/comments/gyb077/nvimlsp_peek_defination_javascript_ttserver/
function preview_location(location, context, before_context)
-- location may be LocationLink or Location (more useful for the former)
context = context or 10
before_context = before_context or 5
local uri = location.targetUri or location.uri
if uri == nil then
return
end
local bufnr = vim.uri_to_bufnr(uri)
if not vim.api.nvim_buf_is_loaded(bufnr) then
vim.fn.bufload(bufnr)
end
local range = location.targetRange or location.range
local contents =
vim.api.nvim_buf_get_lines(bufnr, range.start.line - before_context, range["end"].line + 1 + context, false)
local filetype = vim.api.nvim_buf_get_option(bufnr, "filetype")
return vim.lsp.util.open_floating_preview(contents, filetype)
end
function preview_location_callback(_, method, result)
local context = 10
if result == nil or vim.tbl_isempty(result) then
print("No location found: " .. method)
return nil
end
if vim.tbl_islist(result) then
floating_buf, floating_win = preview_location(result[1], context)
else
floating_buf, floating_win = preview_location(result, context)
end
end
function peek_definition()
if vim.tbl_contains(vim.api.nvim_list_wins(), floating_win) then
vim.api.nvim_set_current_win(floating_win)
else
local params = vim.lsp.util.make_position_params()
return vim.lsp.buf_request(0, "textDocument/definition", params, preview_location_callback)
end
end
local on_attach = function(_, bufnr)
vim.api.nvim_buf_set_option(bufnr, 'omnifunc', 'v:lua.vim.lsp.omnifunc')
require'diagnostic'.on_attach()
@ -17,6 +59,7 @@ local on_attach = function(_, bufnr)
vim.api.nvim_buf_set_keymap(bufnr, 'n', 'gW', '<cmd>lua vim.lsp.buf.workspace_symbol()<CR>', opts)
vim.api.nvim_buf_set_keymap(bufnr, 'n', '<Leader>de', '<cmd>lua vim.lsp.buf.declaration()<CR>', opts)
vim.api.nvim_buf_set_keymap(bufnr, 'n', '<Leader>rn', '<cmd>lua vim.lsp.buf.rename()<CR>', opts)
vim.api.nvim_buf_set_keymap(bufnr, 'n', 'pd', '<cmd>lua peek_definition()<CR>', opts)
vim.api.nvim_buf_set_keymap(bufnr, 'n', '[d', ':PrevDiagnostic<CR>', opts)
vim.api.nvim_buf_set_keymap(bufnr, 'n', ']d', ':NextDiagnostic<CR>', opts)
vim.api.nvim_buf_set_keymap(bufnr, 'n', '[D', ':PrevDiagnosticCycle<CR>', opts)