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local vm = require 'vm.vm'
local files = require 'files'
local ws = require 'workspace'
local guide = require 'parser.guide'
local await = require 'await'
local library = require 'library'
local m = {}
function m.searchFileReturn(results, ast, index)
local returns = ast.returns
if not returns then
return
end
for _, ret in ipairs(returns) do
local exp = ret[index]
if exp then
vm.mergeResults(results, { exp })
end
end
end
function m.require(args, index)
local reqName = args[1] and args[1][1]
if not reqName then
return nil
end
local results = {}
local myUri = guide.getUri(args[1])
local uris = ws.findUrisByRequirePath(reqName)
for _, uri in ipairs(uris) do
if not files.eq(myUri, uri) then
local ast = files.getAst(uri)
if ast then
m.searchFileReturn(results, ast.ast, index)
end
end
end
local lib = library.library[reqName]
results[#results+1] = lib
return results
end
function m.dofile(args, index)
local reqName = args[1] and args[1][1]
if not reqName then
return
end
local results = {}
local myUri = guide.getUri(args[1])
local uris = ws.findUrisByFilePath(reqName)
for _, uri in ipairs(uris) do
if not files.eq(myUri, uri) then
local ast = files.getAst(uri)
if ast then
m.searchFileReturn(results, ast.ast, index)
end
end
end
return results
end
vm.interface = {}
-- 向前寻找引用的层数限制，一般情况下都为0
-- 在自动完成/漂浮提示等情况时设置为5（需要清空缓存）
-- 在查找引用时设置为10（需要清空缓存）
vm.interface.searchLevel = 0
function vm.interface.call(func, args, index)
if func.special == 'require' and index == 1 then
await.delay()
return m.require(args, index)
end
if func.special == 'dofile' then
await.delay()
return m.dofile(args, index)
end
end
function vm.interface.global(name)
await.delay()
return vm.getGlobals(name)
end
function vm.interface.docType(name)
await.delay()
return vm.getDocTypes(name)
end
function vm.interface.link(uri)
await.delay()
return vm.getLinksTo(uri)
end
function vm.interface.index(obj)
if obj.type == 'library' then
return obj.fields
end
local tp = obj.type
if tp == 'getglobal' and obj.node.special == '_G' then
local lib = library.global[obj[1]]
if not lib then
return nil
end
tp = lib.value.type
end
local lib = library.object[tp]
if lib then
return lib.fields
end
return nil
end
function vm.interface.cache()
await.delay()
return vm.getCache('cache')
end
function vm.setSearchLevel(n)
-- 只有在搜索等级由低变高时，才需要清空缓存
if n > vm.interface.searchLevel then
--vm.flushCache()
end
vm.interface.searchLevel = n
end
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