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local subprocess = require 'bee.subprocess'
local method = require 'method'
local thread = require 'thread'
local rpc = require 'rpc'
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 clock = os.clock()
local suc, res = xpcall(f, log.error, self, params)
local passed = os.clock() - clock
if passed > 0.01 then
log.debug(('Task [%s] takes [%.3f]sec.'):format(name, passed))
end
if suc then
return res
else
log.debug(('Task [%s] failed, params: %s'):format(
name, table.dump(params)
))
return nil, {
code = ErrorCodes.InternalError,
message = res,
}
end
end
if optional then
return nil
else
return nil, {
code = ErrorCodes.MethodNotFound,
message = 'MethodNotFound',
}
end
end
function mt:_doProto(proto)
local id = proto.id
local name = proto.method
local params = proto.params
local response, err = self:_callMethod(name, params)
if not id then
return
end
local container = table.container()
if err then
container.error = err
else
container.result = response
end
rpc:response(id, container)
end
function mt:_doDiagnostic()
if not next(self._needDiagnostics) then
return
end
local clock = os.clock()
local count = 0
local copy = {}
for uri, data in pairs(self._needDiagnostics) do
count = count + 1
copy[uri] = data
self._needDiagnostics[uri] = nil
end
for uri, data in pairs(copy) do
local name = 'textDocument/publishDiagnostics'
local res = self:_callMethod(name, data)
if res then
rpc:notify(name, {
uri = uri,
diagnostics = res,
})
end
end
local passed = os.clock() - clock
if passed > 0.01 then
log.debug(('\n\z
Diagnostics completion\n\z
Cost: [%.3f]sec\n\z
Num: [%d]'):format(
passed,
count
))
end
end
function mt:_buildTextCache()
if not next(self._needCompile) then
return
end
local list = {}
for uri in pairs(self._needCompile) 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
if passed > 0.01 then
log.debug(('\n\z
Cache completion\n\z
Cost: [%.3f]sec\n\z
Num: [%d]\n\z
Size: [%.3f]kb'):format(
passed,
#list,
size / 1000
))
end
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._needCompile[uri] = true
else
self._file[uri] = {
version = version,
text = text,
}
self._needCompile[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.vm, obj.lines
end
function mt:compileText(uri)
local obj = self._file[uri]
if not obj then
return nil
end
if not self._needCompile[uri] then
return nil
end
self._needCompile[uri] = nil
local ast = parser:ast(obj.text)
obj.vm = matcher.vm(ast)
obj.lines = parser:lines(obj.text, 'utf8')
if not obj.vm then
return obj
end
self._needDiagnostics[uri] = {
vm = obj.vm,
lines = obj.lines,
uri = uri,
}
return obj
end
function mt:removeText(uri)
self._file[uri] = nil
self._needCompile[uri] = nil
end
function mt:on_tick()
local proto = thread.proto()
if proto then
if proto.method then
self:_doProto(proto)
else
rpc:recieve(proto)
end
end
self:_buildTextCache()
self:_doDiagnostic()
if os.clock() - self._clock >= 60 then
self._clock = os.clock()
local count = 0
for _ in pairs(self._file) do
count = count + 1
end
local mem = collectgarbage 'count'
log.debug(('\n\z
State\n\z
Mem: [%.3f]kb\n\z
Cache: [%d]'):format(
mem,
count
))
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 = {},
_needCompile = {},
_needDiagnostics = {},
_clock = -100,
}, mt)
return session
end
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