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local subprocess = require 'bee.subprocess'
local method = require 'method'
local fs = require 'bee.filesystem'
local thread = require 'thread'
local json = require 'json'
local parser = require 'parser'
local matcher = require 'matcher'
local ErrorCodes = {
-- Defined by JSON RPC
ParseError = -32700,
InvalidRequest = -32600,
MethodNotFound = -32601,
InvalidParams = -32602,
InternalError = -32603,
serverErrorStart = -32099,
serverErrorEnd = -32000,
ServerNotInitialized = -32002,
UnknownErrorCode = -32001,
-- Defined by the protocol.
RequestCancelled = -32800,
}
local mt = {}
mt.__index = mt
function mt:_callMethod(name, params)
local optional
if name:sub(1, 2) == '$/' then
name = name:sub(3)
optional = true
end
local f = method[name]
if f then
local suc, res, res2 = pcall(f, self, params)
if suc then
return res, res2
else
return nil, 'Runtime error: ' .. res
end
end
if optional then
return false
else
return nil, 'Undefined method: ' .. name
end
end
function mt:_send(data)
data.jsonrpc = '2.0'
local content = json.encode(data)
local buf = ('Content-Length: %d\r\n\r\n%s'):format(#content, content)
io.write(buf)
end
function mt:_doProto(proto)
local id = proto.id
local method = proto.method
local params = proto.params
local response, err = self:_callMethod(method, params)
if id then
if response then
self:_send {
id = id,
result = response,
}
else
self:_send {
id = id,
error = {
code = ErrorCodes.UnknownErrorCode,
message = err or ('Lack of response: ' .. method),
},
}
end
end
if response == nil then
log.error(err or ('Lack of response: ' .. method))
end
end
function mt:_buildTextCache()
if not next(self._need_compile) then
return
end
local list = {}
for uri in pairs(self._need_compile) do
list[#list+1] = uri
end
local size = 0
local clock = os.clock()
for _, uri in ipairs(list) do
local obj = self:compileText(uri)
size = size + #obj.text
end
local passed = os.clock() - clock
log.debug(('\n\z
Cache completion\n\z
Cost: [%.3f]秒\n\z
Num: [%d]\n\z
Size: [%.3f]kb\n\z
Speed：[%.3f]kb/s\n\z
Mem： [%.3f]kb'):format(
passed,
#list,
size / 1000,
size / passed / 1000,
collectgarbage 'count'
))
end
function mt:read(mode)
if not self._input then
return nil
end
return self._input(mode)
end
function mt:saveText(uri, version, text)
local obj = self._file[uri]
if obj then
if obj.version >= version then
return
end
obj.version = version
obj.text = text
self._need_compile[uri] = true
else
self._file[uri] = {
version = version,
text = text,
}
self._need_compile[uri] = true
end
end
function mt:loadText(uri)
local obj = self._file[uri]
if not obj then
return nil
end
self:compileText(uri)
return obj.results, obj.lines
end
function mt:compileText(uri)
local obj = self._file[uri]
if not obj then
return nil
end
if not self._need_compile[uri] then
return nil
end
self._need_compile[uri] = nil
local ast = parser:ast(obj.text)
obj.results = matcher.compile(ast)
obj.lines = parser:lines(obj.text)
return obj
end
function mt:removeText(uri)
self._file[uri] = nil
self._need_compile[uri] = nil
end
function mt:on_tick()
local proto = thread.proto()
if proto then
self._idle_clock = os.clock()
self:_doProto(proto)
return
end
if os.clock() - self._idle_clock >= 1 then
self:_buildTextCache()
end
end
function mt:listen()
subprocess.filemode(io.stdin, 'b')
subprocess.filemode(io.stdout, 'b')
io.stdin:setvbuf 'no'
io.stdout:setvbuf 'no'
thread.require 'proto'
while true do
thread.on_tick()
self:on_tick()
thread.sleep(0.001)
end
end
return function ()
local session = setmetatable({
_file = {},
_need_compile = {},
_idle_clock = os.clock(),
}, mt)
return session
end
|
