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|
local noder = require 'core.noder'
local guide = require 'parser.guide'
local files = require 'files'
local generic = require 'core.generic'
local ws = require 'workspace'
local vm = require 'vm.vm'
local await = require 'await'
local globals = require 'vm.globals'
local docs = require 'vm.docs'
local NONE = {'NONE'}
local LAST = {'LAST'}
local ignoredIDs = {
['dn:unknown'] = true,
['dn:nil'] = true,
['dn:any'] = true,
['dn:boolean'] = true,
['dn:string'] = true,
['dn:table'] = true,
['dn:number'] = true,
['dn:integer'] = true,
['dn:userdata'] = true,
['dn:lightuserdata'] = true,
['dn:function'] = true,
['dn:thread'] = true,
}
local m = {}
---@alias guide.searchmode '"ref"'|'"def"'
---添加结果
---@param status guide.status
---@param mode guide.searchmode
---@param source parser.guide.object
---@param force boolean
function m.pushResult(status, mode, source, force)
if not source then
return
end
local results = status.results
local mark = status.mark
if mark[source] then
return
end
mark[source] = true
if force then
results[#results+1] = source
return
end
local parent = source.parent
if mode == 'def' then
if source.type == 'local'
or source.type == 'setlocal'
or source.type == 'setglobal'
or source.type == 'label'
or source.type == 'setfield'
or source.type == 'setmethod'
or source.type == 'setindex'
or source.type == 'tableindex'
or source.type == 'tablefield'
or source.type == 'function'
or source.type == 'table'
or source.type == 'doc.class.name'
or source.type == 'doc.alias.name'
or source.type == 'doc.field.name'
or source.type == 'doc.type.enum'
or source.type == 'doc.resume'
or source.type == 'doc.type.array'
or source.type == 'doc.type.table'
or source.type == 'doc.type.function' then
results[#results+1] = source
return
end
if source.type == 'call' then
if source.node.special == 'rawset' then
results[#results+1] = source
end
end
if parent.type == 'return' then
if noder.getID(source) ~= status.id then
results[#results+1] = source
end
end
elseif mode == 'ref' then
if source.type == 'local'
or source.type == 'setlocal'
or source.type == 'getlocal'
or source.type == 'setglobal'
or source.type == 'getglobal'
or source.type == 'label'
or source.type == 'goto'
or source.type == 'setfield'
or source.type == 'getfield'
or source.type == 'setmethod'
or source.type == 'getmethod'
or source.type == 'setindex'
or source.type == 'getindex'
or source.type == 'tableindex'
or source.type == 'tablefield'
or source.type == 'function'
or source.type == 'table'
or source.type == 'string'
or source.type == 'boolean'
or source.type == 'number'
or source.type == 'nil'
or source.type == 'doc.class.name'
or source.type == 'doc.type.name'
or source.type == 'doc.alias.name'
or source.type == 'doc.extends.name'
or source.type == 'doc.field.name'
or source.type == 'doc.type.enum'
or source.type == 'doc.resume'
or source.type == 'doc.type.array'
or source.type == 'doc.type.table'
or source.type == 'doc.type.function' then
results[#results+1] = source
return
end
if source.type == 'call' then
if source.node.special == 'rawset'
or source.node.special == 'rawget' then
results[#results+1] = source
end
end
if parent.type == 'return' then
if noder.getID(source) ~= status.id then
results[#results+1] = source
end
end
end
end
---获取uri
---@param obj parser.guide.object
---@return uri
function m.getUri(obj)
if obj.uri then
return obj.uri
end
local root = guide.getRoot(obj)
if root then
return root.uri
end
return ''
end
---@param obj parser.guide.object
---@return parser.guide.object?
function m.getObjectValue(obj)
while obj.type == 'paren' do
obj = obj.exp
if not obj then
return nil
end
end
if obj.type == 'boolean'
or obj.type == 'number'
or obj.type == 'integer'
or obj.type == 'string' then
return obj
end
if obj.value then
return obj.value
end
if obj.type == 'field'
or obj.type == 'method' then
return obj.parent and obj.parent.value
end
if obj.type == 'call' then
if obj.node.special == 'rawset' then
return obj.args and obj.args[3]
else
return obj
end
end
if obj.type == 'select' then
return obj
end
return nil
end
local function crossSearch(status, uri, expect, mode)
if status.lock[uri] then
return
end
status.lock[uri] = true
--await.delay()
if TRACE then
log.debug('crossSearch', uri, expect)
end
m.searchRefsByID(status, uri, expect, mode)
status.lock[uri] = nil
end
local function checkCache(status, uri, expect, mode)
local cache = vm.getCache('search:' .. mode)
local fileCache = cache[uri]
if not fileCache then
fileCache = {}
cache[uri] = fileCache
end
if fileCache[expect] then
for _, res in ipairs(fileCache[expect]) do
m.pushResult(status, mode, res, true)
end
return true
end
fileCache[expect] = status.results
return false
end
function m.searchRefsByID(status, uri, expect, mode)
local ast = files.getState(uri)
if not ast then
return
end
local root = ast.ast
local searchStep
noder.compileNodes(root)
status.id = expect
local callStack = status.callStack
local mark = {}
local function search(id, field)
local firstID = noder.getFirstID(id)
if ignoredIDs[firstID] and (field or firstID ~= id) then
return
end
local cmark = mark[id]
if not cmark then
cmark = {}
mark[id] = cmark
end
if TRACE then
log.debug('search:', id, field)
end
if field then
if cmark[field] then
return
end
cmark[field] = true
searchStep(id, field)
else
if cmark[NONE] then
return
end
cmark[NONE] = true
searchStep(id, nil)
end
if TRACE then
log.debug('pop:', id, field)
end
end
local function checkLastID(id, field)
local cmark = mark[id]
if not cmark then
cmark = {}
mark[id] = cmark
end
if cmark[LAST] then
return
end
local lastID = noder.getLastID(id)
if not lastID then
return
end
local newField = id:sub(#lastID + 1)
if field then
newField = newField .. field
end
cmark[LAST] = true
search(lastID, newField)
return lastID
end
local function searchID(id, field)
if not id then
return
end
if field then
id = id .. field
end
search(id, nil)
end
local function isCallID(field)
if not field then
return false
end
if field:sub(1, 2) == noder.RETURN_INDEX then
return true
end
return false
end
local function findLastCall()
for i = #callStack, 1, -1 do
local call = callStack[i]
if call then
-- 标记此处的call失效,等待在堆栈平衡时弹出
callStack[i] = false
return call
end
end
return nil
end
local genericCallArgs = {}
local closureCache = {}
local function checkGeneric(source, field)
if not source.isGeneric then
return
end
if not isCallID(field) then
return
end
local call = findLastCall()
if not call then
return
end
if call.args then
for _, arg in ipairs(call.args) do
genericCallArgs[arg] = true
end
end
local cacheID = noder.getID(source) .. noder.getID(call)
local closure = closureCache[cacheID]
if closure == false then
return
end
if not closure then
closure = generic.createClosure(source, call)
closureCache[cacheID] = closure or false
if not closure then
return
end
end
local id = noder.getID(closure)
searchID(id, field)
end
local function checkENV(source, field)
if not field then
return
end
if source.special ~= '_G' then
return
end
local newID = 'g:' .. field:sub(2)
searchID(newID)
end
local forwardTag = {}
local backwardTag = {}
local function checkForward(id, node, field)
for _, forwardID in ipairs(node.forward) do
local tag = node.forward[forwardID]
if tag then
if backwardTag[tag] and backwardTag[tag] > 0 then
goto CONTINUE
end
forwardTag[tag] = (forwardTag[tag] or 0) + 1
end
local targetUri, targetID = noder.getUriAndID(forwardID)
if targetUri and not files.eq(targetUri, uri) then
crossSearch(status, targetUri, targetID .. (field or ''), mode)
else
searchID(targetID or forwardID, field)
end
if tag then
forwardTag[tag] = forwardTag[tag] - 1
end
::CONTINUE::
end
end
local function checkBackward(id, node, field)
if mode ~= 'ref' and not field then
return
end
for _, backwardID in ipairs(node.backward) do
local tag = node.backward[backwardID]
if tag then
if forwardTag[tag] and forwardTag[tag] > 0 then
goto CONTINUE
end
backwardTag[tag] = (backwardTag[tag] or 0) + 1
end
local targetUri, targetID = noder.getUriAndID(backwardID)
if targetUri and not files.eq(targetUri, uri) then
crossSearch(status, targetUri, targetID .. (field or ''), mode)
else
searchID(targetID or backwardID, field)
end
if tag then
backwardTag[tag] = backwardTag[tag] - 1
end
::CONTINUE::
end
end
local function checkRequire(requireName, field)
local tid = 'mainreturn' .. (field or '')
local uris = ws.findUrisByRequirePath(requireName)
for _, ruri in ipairs(uris) do
if not files.eq(uri, ruri) then
crossSearch(status, ruri, tid, mode)
end
end
end
local function checkGlobal(id, node, field)
if id:sub(1, 2) ~= 'g:' then
return
end
local firstID = noder.getFirstID(id)
if status.crossed[firstID] then
return
end
status.crossed[firstID] = true
local uris = globals.getUrisByID(firstID)
if not uris then
return
end
local isCall = id:sub(#firstID + 2, #firstID + 2) == noder.RETURN_INDEX
local tid = id .. (field or '')
for guri, def in pairs(uris) do
if def then
crossSearch(status, guri, tid, mode)
goto CONTINUE
end
if isCall then
goto CONTINUE
end
if not field then
goto CONTINUE
end
if mode == 'def' then
goto CONTINUE
end
if not files.eq(uri, guri) then
goto CONTINUE
end
crossSearch(status, guri, tid, mode)
::CONTINUE::
end
end
local function checkClass(id, node, field)
if id:sub(1, 3) ~= 'dn:' then
return
end
local firstID = noder.getFirstID(id)
if status.crossed[firstID] then
return
end
status.crossed[firstID] = true
local uris = docs.getUrisByID(firstID)
if not uris then
return
end
local tid = id .. (field or '')
for guri in pairs(uris) do
if not files.eq(uri, guri) then
crossSearch(status, guri, tid, mode)
end
end
end
local function checkMainReturn(id, node, field)
if id ~= 'mainreturn' then
return
end
if mode ~= 'ref' and not field then
return
end
local calls = vm.getLinksTo(uri)
for _, call in ipairs(calls) do
local turi = guide.getUri(call)
if not files.eq(turi, uri) then
local tid = noder.getID(call) .. (field or '')
crossSearch(status, turi, tid, mode)
end
end
end
local function searchNode(id, node, field)
if node.call then
callStack[#callStack+1] = node.call
end
if field == nil and node.sources then
for _, source in ipairs(node.sources) do
local force = genericCallArgs[source]
m.pushResult(status, mode, source, force)
end
end
if node.require then
checkRequire(node.require, field)
return true
end
if node.forward then
checkForward(id, node, field)
end
if node.backward then
checkBackward(id, node, field)
end
if node.sources then
checkGeneric(node.sources[1], field)
checkENV(node.sources[1], field)
end
--checkMainReturn(id, node, field)
if node.call then
callStack[#callStack] = nil
end
end
local stepCount = 0
function searchStep(id, field)
stepCount = stepCount + 1
if stepCount > 1000 then
if TEST then
error('too large!')
else
log.warn('too large!')
return
end
end
local node = noder.getNodeByID(root, id)
if node then
local skip = searchNode(id, node, field)
if skip then
return
end
end
checkGlobal(id, node, field)
checkClass(id, node, field)
local lastID = checkLastID(id, field)
if not lastID then
return
end
local originField = id:sub(#lastID + 1)
if originField == noder.TABLE_KEY then
return
end
local anyFieldID = lastID .. noder.ANY_FIELD
local anyFieldNode = noder.getNodeByID(root, anyFieldID)
if anyFieldNode then
searchNode(anyFieldID, anyFieldNode, field)
end
end
search(expect)
--清除来自泛型的临时对象
for _, closure in pairs(closureCache) do
noder.removeID(root, noder.getID(closure))
if closure then
for _, value in ipairs(closure.values) do
noder.removeID(root, noder.getID(value))
end
end
end
end
local function prepareSearch(source)
if source.type == 'field'
or source.type == 'method' then
source = source.parent
end
local root = guide.getRoot(source)
noder.compileNodes(root)
local uri = guide.getUri(source)
local id = noder.getID(source)
return uri, id
end
local function getField(status, source, mode)
if source.type == 'table' then
for _, field in ipairs(source) do
m.pushResult(status, mode, field)
end
return
end
if source.type == 'doc.class.name' then
local class = source.parent
for _, field in ipairs(class.fields) do
m.pushResult(status, mode, field.field)
end
return
end
local field = source.next
if field then
if field.type == 'getmethod'
or field.type == 'setmethod'
or field.type == 'getfield'
or field.type == 'setfield'
or field.type == 'getindex'
or field.type == 'setindex' then
m.pushResult(status, mode, field)
end
return
end
end
local function searchAllGlobalByUri(status, mode, uri, fullID)
local ast = files.getState(uri)
if not ast then
return
end
local root = ast.ast
noder.compileNodes(root)
local noders = noder.getNoders(root)
if fullID then
for id, node in pairs(noders) do
if node.sources
and id == fullID then
for _, source in ipairs(node.sources) do
m.pushResult(status, mode, source)
end
end
end
else
for id, node in pairs(noders) do
if node.sources
and id:sub(1, 2) == 'g:'
and not id:find(noder.SPLIT_CHAR) then
for _, source in ipairs(node.sources) do
m.pushResult(status, mode, source)
end
end
end
end
end
local function searchAllGlobals(status, mode)
for uri in files.eachFile() do
searchAllGlobalByUri(status, mode, uri)
end
end
---查找全局变量
---@param uri uri
---@param mode guide.searchmode
---@param name string
---@return parser.guide.object[]
function m.findGlobals(uri, mode, name)
local status = m.status(mode)
if name then
local fullID = ('g:%q'):format(name)
searchAllGlobalByUri(status, mode, uri, fullID)
else
searchAllGlobalByUri(status, mode, uri)
end
return status.results
end
---搜索对象的引用
---@param status guide.status
---@param source parser.guide.object
---@param mode guide.searchmode
function m.searchRefs(status, source, mode)
local uri, id = prepareSearch(source)
if not id then
return
end
if checkCache(status, uri, id, mode) then
return
end
if TRACE then
log.debug('searchRefs:', id)
end
m.searchRefsByID(status, uri, id, mode)
end
---搜索对象的field
---@param status guide.status
---@param source parser.guide.object
---@param mode guide.searchmode
---@param field string
function m.searchFields(status, source, mode, field)
local uri, id = prepareSearch(source)
if not id then
return
end
if TRACE then
log.debug('searchFields:', id, field)
end
if field == '*' then
if source.special == '_G' then
if checkCache(status, uri, '*', mode) then
return
end
searchAllGlobals(status, mode)
else
if checkCache(status, uri, id .. '*', mode) then
return
end
local newStatus = m.status(mode)
m.searchRefsByID(newStatus, uri, id, mode)
for _, def in ipairs(newStatus.results) do
getField(status, def, mode)
end
end
else
if source.special == '_G' then
local fullID = ('g:%q'):format(field)
if checkCache(status, uri, fullID, mode) then
return
end
m.searchRefsByID(status, uri, fullID, mode)
else
local fullID = ('%s%s%q'):format(id, noder.SPLIT_CHAR, field)
if checkCache(status, uri, fullID, mode) then
return
end
m.searchRefsByID(status, uri, fullID, mode)
end
end
end
---@class guide.status
---搜索结果
---@field results parser.guide.object[]
---创建搜索状态
---@param mode guide.searchmode
---@return guide.status
function m.status(mode)
local status = {
callStack = {},
crossed = {},
lock = {},
results = {},
mark = {},
cache = vm.getCache('searcher:' .. mode)
}
return status
end
--- 请求对象的引用
---@param obj parser.guide.object
---@param field? string
---@return parser.guide.object[]
function m.requestReference(obj, field)
local status = m.status('ref')
if field then
m.searchFields(status, obj, 'ref', field)
else
m.searchRefs(status, obj, 'ref')
end
return status.results
end
--- 请求对象的定义
---@param obj parser.guide.object
---@param field? string
---@return parser.guide.object[]
function m.requestDefinition(obj, field)
local status = m.status('def')
if field then
m.searchFields(status, obj, 'def', field)
else
m.searchRefs(status, obj, 'def')
end
return status.results
end
return m
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