feat(scripts): add lsp_types.lua (#23750)

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max397574 2023-06-07 13:32:39 +02:00 committed by GitHub
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scripts/lsp_types.lua Normal file
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--[[
Generates lua-ls annotations for lsp
USAGE:
nvim -l scripts/lsp_types.lua gen --runtime/lua/vim/lsp/types/protocol.lua
--]]
local M = {}
local function tofile(fname, text)
local f = io.open(fname, 'w')
if not f then
error(('failed to write: %s'):format(f))
else
f:write(text)
f:close()
end
end
function M.gen(opt)
if vim.loop.fs_stat('./lsp.json') then
vim.fn.delete('./lsp.json')
end
vim.fn.system({
'curl',
'https://raw.githubusercontent.com/microsoft/lsprotocol/main/generator/lsp.json',
'-o',
'./lsp.json',
})
local protocol = vim.fn.json_decode(vim.fn.readfile('./lsp.json'))
vim.fn.delete('./lsp.json')
local output_file = opt[1]
protocol = protocol or {}
local output = {
'--[[',
'This file is autogenerated from scripts/lsp_types.lua',
'Regenerate:',
[=[nvim -l scripts/lsp_types.lua gen --runtime/lua/vim/lsp/types/protocol.lua]=],
'--]]',
'',
'---@alias lsp.null nil',
'---@alias uinteger integer',
'---@alias lsp.decimal number',
'---@alias lsp.DocumentUri string',
'---@alias lsp.URI string',
'---@alias lsp.LSPObject table<string, lsp.LSPAny>',
'---@alias lsp.LSPArray lsp.LSPAny[]',
'---@alias lsp.LSPAny lsp.LSPObject|lsp.LSPArray|string|number|boolean|nil',
'',
}
local anonymous_num = 0
local anonym_classes = {}
local simple_types = {
'string',
'boolean',
'integer',
'uinteger',
'decimal',
}
local function parse_type(type)
if type.kind == 'reference' or type.kind == 'base' then
if vim.tbl_contains(simple_types, type.name) then
return type.name
end
return 'lsp.' .. type.name
elseif type.kind == 'array' then
return parse_type(type.element) .. '[]'
elseif type.kind == 'or' then
local val = ''
for _, item in ipairs(type.items) do
val = val .. parse_type(item) .. '|'
end
val = val:sub(0, -2)
return val
elseif type.kind == 'stringLiteral' then
return '"' .. type.value .. '"'
elseif type.kind == 'map' then
return 'table<' .. parse_type(type.key) .. ', ' .. parse_type(type.value) .. '>'
elseif type.kind == 'literal' then
-- can I use ---@param disabled? {reason: string}
-- use | to continue the inline class to be able to add docs
-- https://github.com/LuaLS/lua-language-server/issues/2128
anonymous_num = anonymous_num + 1
local anonym = { '---@class anonym' .. anonymous_num }
for _, field in ipairs(type.value.properties) do
if field.documentation then
field.documentation = field.documentation:gsub('\n', '\n---')
anonym[#anonym + 1] = '---' .. field.documentation
end
anonym[#anonym + 1] = '---@field '
.. field.name
.. (field.optional and '?' or '')
.. ' '
.. parse_type(field.type)
end
anonym[#anonym + 1] = ''
for _, line in ipairs(anonym) do
anonym_classes[#anonym_classes + 1] = line
end
return 'anonym' .. anonymous_num
elseif type.kind == 'tuple' then
local tuple = '{ '
for i, value in ipairs(type.items) do
tuple = tuple .. '[' .. i .. ']: ' .. parse_type(value) .. ', '
end
-- remove , at the end
tuple = tuple:sub(0, -3)
return tuple .. ' }'
end
vim.print(type)
return ''
end
for _, structure in ipairs(protocol.structures) do
if structure.documentation then
structure.documentation = structure.documentation:gsub('\n', '\n---')
output[#output + 1] = '---' .. structure.documentation
end
if structure.extends then
local class_string = '---@class lsp.'
.. structure.name
.. ': '
.. parse_type(structure.extends[1])
for _, mixin in ipairs(structure.mixins or {}) do
class_string = class_string .. ', ' .. parse_type(mixin)
end
output[#output + 1] = class_string
else
output[#output + 1] = '---@class lsp.' .. structure.name
end
for _, field in ipairs(structure.properties or {}) do
if field.documentation then
field.documentation = field.documentation:gsub('\n', '\n---')
output[#output + 1] = '---' .. field.documentation
end
output[#output + 1] = '---@field '
.. field.name
.. (field.optional and '?' or '')
.. ' '
.. parse_type(field.type)
end
output[#output + 1] = ''
end
for _, enum in ipairs(protocol.enumerations) do
if enum.documentation then
enum.documentation = enum.documentation:gsub('\n', '\n---')
output[#output + 1] = '---' .. enum.documentation
end
local enum_type = '---@alias lsp.' .. enum.name
for _, value in ipairs(enum.values) do
enum_type = enum_type
.. '\n---| '
.. (type(value.value) == 'string' and '"' .. value.value .. '"' or value.value)
.. ' # '
.. value.name
end
output[#output + 1] = enum_type
output[#output + 1] = ''
end
for _, alias in ipairs(protocol.typeAliases) do
if alias.documentation then
alias.documentation = alias.documentation:gsub('\n', '\n---')
output[#output + 1] = '---' .. alias.documentation
end
if alias.type.kind == 'or' then
local alias_type = '---@alias lsp.' .. alias.name .. ' '
for _, item in ipairs(alias.type.items) do
alias_type = alias_type .. parse_type(item) .. '|'
end
alias_type = alias_type:sub(0, -2)
output[#output + 1] = alias_type
else
output[#output + 1] = '---@alias lsp.' .. alias.name .. ' ' .. parse_type(alias.type)
end
output[#output + 1] = ''
end
for _, line in ipairs(anonym_classes) do
output[#output + 1] = line
end
tofile(output_file, table.concat(output, '\n'))
end
local opt = {}
local index = 1
for _, a in ipairs(arg) do
if vim.startswith(a, '--') then
local name = a:sub(3)
opt[index] = name
index = index + 1
end
end
for _, a in ipairs(arg) do
if M[a] then
M[a](opt)
end
end
return M