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compiler.lua
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compiler.lua
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local guide = require 'parser.guide'
local util = require 'utility'
local config = require 'config'
local rpath = require 'workspace.require-path'
local files = require 'files'
---@class vm
local vm = require 'vm.vm'
---@class parser.object
---@field _compiledNodes boolean
---@field _node vm.node
---@field _globalBase table
local searchFieldSwitch = util.switch()
: case 'table'
: call(function (suri, source, key, ref, pushResult)
local hasFiled = false
for _, field in ipairs(source) do
if field.type == 'tablefield'
or field.type == 'tableindex' then
local fieldKey = guide.getKeyName(field)
if key == nil
or key == fieldKey then
hasFiled = true
pushResult(field)
end
end
if field.type == 'tableexp' then
if key == nil
or key == field.tindex then
hasFiled = true
pushResult(field)
end
end
if field.type == 'varargs' then
if not hasFiled
and type(key) == 'number'
and key >= 1
and math.tointeger(key) then
hasFiled = true
pushResult(field)
end
if key == nil then
pushResult(field)
end
end
end
end)
: case 'string'
: call(function (suri, source, key, ref, pushResult)
-- change to `string: stringlib` ?
local stringlib = vm.getGlobal('type', 'stringlib')
if stringlib then
vm.getClassFields(suri, stringlib, key, ref, pushResult)
end
end)
: case 'local'
: case 'self'
: call(function (suri, node, key, ref, pushResult)
local fields
if key then
fields = vm.getLocalSources(node, key)
else
fields = vm.getLocalFields(node)
end
if fields then
for _, src in ipairs(fields) do
if ref or guide.isSet(src) then
pushResult(src)
end
end
end
end)
: case 'doc.type.array'
: call(function (suri, source, key, ref, pushResult)
if type(key) == 'number' then
if key < 1
or not math.tointeger(key) then
return
end
end
pushResult(source.node)
end)
: case 'doc.type.table'
: call(function (suri, source, key, ref, pushResult)
for _, field in ipairs(source.fields) do
local fieldKey = field.name
if fieldKey.type == 'doc.type' then
local fieldNode = vm.compileNode(fieldKey)
for fn in fieldNode:eachObject() do
if fn.type == 'global' and fn.cate == 'type' then
if key == nil
or fn.name == 'any'
or (fn.name == 'boolean' and type(key) == 'boolean')
or (fn.name == 'number' and type(key) == 'number')
or (fn.name == 'integer' and math.tointeger(key))
or (fn.name == 'string' and type(key) == 'string') then
pushResult(field)
end
end
end
end
if fieldKey.type == 'doc.field.name' then
if key == nil or fieldKey[1] == key then
pushResult(field)
end
end
end
end)
: case 'global'
: call(function (suri, node, key, ref, pushResult)
if node.cate == 'variable' then
if key then
if type(key) ~= 'string' then
return
end
local global = vm.getGlobal('variable', node.name, key)
if global then
for _, set in ipairs(global:getSets(suri)) do
pushResult(set)
end
if ref then
for _, get in ipairs(global:getGets(suri)) do
pushResult(get)
end
end
end
else
local globals = vm.getGlobalFields('variable', node.name)
for _, global in ipairs(globals) do
for _, set in ipairs(global:getSets(suri)) do
pushResult(set)
end
if ref then
for _, get in ipairs(global:getGets(suri)) do
pushResult(get)
end
end
end
end
end
if node.cate == 'type' then
vm.getClassFields(suri, node, key, ref, pushResult)
end
end)
: default(function (suri, source, key, ref, pushResult)
local node = source._globalNode
if not node then
return
end
if node.cate == 'variable' then
if key then
if type(key) ~= 'string' then
return
end
local global = vm.getGlobal('variable', node.name, key)
if global then
for _, set in ipairs(global:getSets(suri)) do
pushResult(set)
end
for _, get in ipairs(global:getGets(suri)) do
pushResult(get)
end
end
else
local globals = vm.getGlobalFields('variable', node.name)
for _, global in ipairs(globals) do
for _, set in ipairs(global:getSets(suri)) do
pushResult(set)
end
for _, get in ipairs(global:getGets(suri)) do
pushResult(get)
end
end
end
end
if node.cate == 'type' then
vm.getClassFields(suri, node, key, ref, pushResult)
end
end)
function vm.getClassFields(suri, object, key, ref, pushResult)
local mark = {}
local function searchClass(class, searchedFields)
local name = class.name
if mark[name] then
return
end
mark[name] = true
searchedFields = searchedFields or {}
for _, set in ipairs(class:getSets(suri)) do
if set.type == 'doc.class' then
-- check ---@field
local hasFounded = {}
for _, field in ipairs(set.fields) do
local fieldKey = guide.getKeyName(field)
if fieldKey then
-- ---@field x boolean -> class.x
if key == nil
or fieldKey == key then
if not searchedFields[fieldKey] then
pushResult(field)
hasFounded[fieldKey] = true
end
end
end
if not hasFounded[fieldKey] then
local keyType = type(key)
if keyType == 'table' then
-- ---@field [integer] boolean -> class[integer]
local fieldNode = vm.compileNode(field.field)
if vm.isSubType(suri, key.name, fieldNode) then
local nkey = '|' .. key.name
if not searchedFields[nkey] then
pushResult(field)
hasFounded[nkey] = true
end
end
else
local typeName
if keyType == 'number' then
if math.tointeger(key) then
typeName = 'integer'
else
typeName = 'number'
end
elseif keyType == 'boolean'
or keyType == 'string' then
typeName = keyType
end
if typeName then
-- ---@field [integer] boolean -> class[1]
local fieldNode = vm.compileNode(field.field)
if vm.isSubType(suri, typeName, fieldNode) then
local nkey = '|' .. typeName
if not searchedFields[nkey] then
pushResult(field)
hasFounded[nkey] = true
end
end
end
end
end
end
-- check local field and global field
if set.bindSources then
for _, src in ipairs(set.bindSources) do
searchFieldSwitch(src.type, suri, src, key, ref, function (field)
local fieldKey = guide.getKeyName(field)
if fieldKey then
if not searchedFields[fieldKey]
and guide.isSet(field) then
hasFounded[fieldKey] = true
pushResult(field)
end
end
end)
if src.value and src.value.type == 'table' then
searchFieldSwitch('table', suri, src.value, key, ref, function (field)
local fieldKey = guide.getKeyName(field)
if fieldKey then
if not searchedFields[fieldKey]
and guide.isSet(field) then
hasFounded[fieldKey] = true
pushResult(field)
end
end
end)
end
end
end
-- look into extends(if field not found)
if not hasFounded[key] and set.extends then
for fieldKey in pairs(hasFounded) do
searchedFields[fieldKey] = true
end
for _, extend in ipairs(set.extends) do
if extend.type == 'doc.extends.name' then
local extendType = vm.getGlobal('type', extend[1])
if extendType then
searchClass(extendType, searchedFields)
end
end
end
end
end
end
end
local function searchGlobal(class)
if class.cate == 'type' and class.name == '_G' then
if key == nil then
local sets = vm.getGlobalSets(suri, 'variable')
for _, set in ipairs(sets) do
pushResult(set)
end
else
local global = vm.getGlobal('variable', key)
if global then
for _, set in ipairs(global:getSets(suri)) do
pushResult(set)
end
end
end
end
end
searchClass(object)
searchGlobal(object)
end
---@class parser.object
---@field _sign? vm.sign
---@param source parser.object
---@return vm.sign?
local function getObjectSign(source)
if source._sign ~= nil then
return source._sign
end
source._sign = false
if source.type == 'function' then
if not source.bindDocs then
return false
end
for _, doc in ipairs(source.bindDocs) do
if doc.type == 'doc.generic' then
if not source._sign then
source._sign = vm.createSign()
break
end
end
end
if not source._sign then
return false
end
if source.args then
for _, arg in ipairs(source.args) do
local argNode = vm.compileNode(arg)
if arg.optional then
argNode:addOptional()
end
source._sign:addSign(argNode)
end
end
end
if source.type == 'doc.type.function'
or source.type == 'doc.type.table'
or source.type == 'doc.type.array' then
local hasGeneric
guide.eachSourceType(source, 'doc.generic.name', function ()
hasGeneric = true
end)
if not hasGeneric then
return false
end
source._sign = vm.createSign()
if source.type == 'doc.type.function' then
for _, arg in ipairs(source.args) do
if arg.extends then
local argNode = vm.compileNode(arg.extends)
if arg.optional then
argNode:addOptional()
end
source._sign:addSign(argNode)
else
source._sign:addSign(vm.createNode())
end
end
end
end
return source._sign
end
---@param func parser.object
---@param index integer
---@return vm.object?
function vm.getReturnOfFunction(func, index)
if func.type == 'function' then
if not func._returns then
func._returns = {}
end
if not func._returns[index] then
func._returns[index] = {
type = 'function.return',
parent = func,
index = index,
}
end
return func._returns[index]
end
if func.type == 'doc.type.function' then
local rtn = func.returns[index]
if not rtn then
return nil
end
local sign = getObjectSign(func)
if not sign then
return rtn
end
return vm.createGeneric(rtn, sign)
end
end
---@return vm.node
local function getReturnOfSetMetaTable(args)
local tbl = args[1]
local mt = args[2]
local node = vm.createNode()
if tbl then
node:merge(vm.compileNode(tbl))
end
if mt then
vm.compileByParentNode(mt, '__index', false, function (src)
for n in vm.compileNode(src):eachObject() do
if n.type == 'global'
or n.type == 'local'
or n.type == 'table'
or n.type == 'doc.type.table' then
node:merge(n)
end
end
end)
end
return node
end
---@return vm.node?
local function getReturn(func, index, args)
if func.special == 'setmetatable' then
if not args then
return nil
end
return getReturnOfSetMetaTable(args)
end
if func.special == 'pcall' and index > 1 then
if not args then
return nil
end
local newArgs = {}
for i = 2, #args do
newArgs[#newArgs+1] = args[i]
end
return getReturn(args[1], index - 1, newArgs)
end
if func.special == 'xpcall' and index > 1 then
if not args then
return nil
end
local newArgs = {}
for i = 3, #args do
newArgs[#newArgs+1] = args[i]
end
return getReturn(args[1], index - 1, newArgs)
end
if func.special == 'require' then
if not args then
return nil
end
local nameArg = args[1]
if not nameArg or nameArg.type ~= 'string' then
return nil
end
local name = nameArg[1]
if not name or type(name) ~= 'string' then
return nil
end
local uri = rpath.findUrisByRequirePath(guide.getUri(func), name)[1]
if not uri then
return nil
end
local state = files.getState(uri)
local ast = state and state.ast
if not ast then
return nil
end
return vm.compileNode(ast)
end
local node = vm.compileNode(func)
---@type vm.node?
local result
for cnode in node:eachObject() do
if cnode.type == 'function'
or cnode.type == 'doc.type.function' then
local returnObject = vm.getReturnOfFunction(cnode, index)
if returnObject then
local returnNode = vm.compileNode(returnObject)
for rnode in returnNode:eachObject() do
if rnode.type == 'generic' then
returnNode = rnode:resolve(guide.getUri(func), args)
break
end
end
if returnNode then
for rnode in returnNode:eachObject() do
-- TODO: narrow type
if rnode.type ~= 'doc.generic.name' then
result = result or vm.createNode()
result:merge(rnode)
end
end
if result and returnNode:isOptional() then
result:addOptional()
end
end
end
end
end
return result
end
---@param source parser.object
---@return boolean
local function bindAs(source)
local root = guide.getRoot(source)
local docs = root.docs
if not docs then
return
end
for _, doc in ipairs(docs) do
if doc.type == 'doc.as' and doc.originalComment.start == source.finish + 2 then
if doc.as then
vm.setNode(source, vm.compileNode(doc.as), true)
end
return true
end
end
return false
end
-- 该函数有副作用,会给source绑定node!
local function bindDocs(source)
local isParam = source.parent.type == 'funcargs'
or (source.parent.type == 'in' and source.finish <= source.parent.keys.finish)
local docs = source.bindDocs
for i = #docs, 1, -1 do
local doc = docs[i]
if doc.type == 'doc.type' then
if not isParam then
vm.setNode(source, vm.compileNode(doc))
return true
end
end
if doc.type == 'doc.class' then
if (source.type == 'local' and not isParam)
or (source._globalNode and guide.isSet(source))
or source.type == 'tablefield'
or source.type == 'tableindex' then
vm.setNode(source, vm.compileNode(doc))
return true
end
end
if doc.type == 'doc.param' then
if isParam and source[1] == doc.param[1] then
local node = vm.compileNode(doc)
if doc.optional then
node:addOptional()
end
vm.setNode(source, node)
return true
end
end
if doc.type == 'doc.module' then
local name = doc.module
local uri = rpath.findUrisByRequirePath(guide.getUri(source), name)[1]
if not uri then
return true
end
local state = files.getState(uri)
local ast = state and state.ast
if not ast then
return true
end
vm.setNode(source, vm.compileNode(ast))
return true
end
if doc.type == 'doc.overload' then
if not isParam then
vm.setNode(source, vm.compileNode(doc))
end
end
end
return false
end
local function compileByLocalID(source)
local sources = vm.getLocalSources(source)
if not sources then
return
end
local hasMarkDoc
for _, src in ipairs(sources) do
if src.bindDocs then
if bindDocs(src) then
hasMarkDoc = true
vm.setNode(source, vm.compileNode(src))
end
end
end
for _, src in ipairs(sources) do
if src.value then
if not hasMarkDoc or guide.isLiteral(src.value) then
if src.value.type ~= 'nil' then
vm.setNode(source, vm.compileNode(src.value))
end
end
end
end
end
---@param source vm.node
---@param key? any
---@param pushResult fun(source: parser.object)
function vm.compileByParentNode(source, key, ref, pushResult)
local parentNode = vm.compileNode(source)
local suri = guide.getUri(source)
for node in parentNode:eachObject() do
searchFieldSwitch(node.type, suri, node, key, ref, pushResult)
end
end
---@return vm.node?
local function selectNode(source, list, index)
if not list then
return nil
end
local exp
if list[index] then
exp = list[index]
else
for i = index, 1, -1 do
if list[i] then
local last = list[i]
if last.type == 'call'
or last.type == '...' then
index = index - i + 1
exp = last
end
break
end
end
end
if not exp then
return nil
end
local result
if exp.type == 'call' then
result = getReturn(exp.node, index, exp.args)
if not result then
vm.setNode(source, vm.declareGlobal('type', 'unknown'))
return vm.getNode(source)
end
else
result = vm.compileNode(exp)
end
if source.type == 'function.return' then
-- remove any for returns
local rtnNode = vm.createNode()
local hasKnownType
for n in result:eachObject() do
if guide.isLiteral(n) then
hasKnownType = true
rtnNode:merge(n)
end
if n.type == 'global' and n.cate == 'type' then
if n.name ~= 'any'
and n.name ~= 'unknown' then
hasKnownType = true
rtnNode:merge(n)
end
else
rtnNode:merge(n)
end
end
if not hasKnownType then
rtnNode:merge(vm.declareGlobal('type', 'unknown'))
end
vm.setNode(source, rtnNode)
return rtnNode
end
vm.setNode(source, result)
return result
end
---@param source parser.object
---@param node vm.object
---@return boolean
local function isValidCallArgNode(source, node)
if source.type == 'function' then
return node.type == 'doc.type.function'
end
if source.type == 'table' then
return node.type == 'doc.type.table'
or (node.type == 'global' and node.cate == 'type' and not guide.isBasicType(node.name))
end
if source.type == 'dummyarg' then
return true
end
return false
end
---@param func parser.object
---@param index integer
---@return parser.object?
local function getFuncArg(func, index)
local args = func.args
if not args then
return nil
end
if args[index] then
return args[index]
end
local lastArg = args[#args]
if lastArg and lastArg.type == '...' then
return lastArg
end
return nil
end
---@param arg parser.object
---@param call parser.object
---@param callNode vm.node
---@param fixIndex integer
---@param myIndex integer
local function compileCallArgNode(arg, call, callNode, fixIndex, myIndex)
local eventIndex, eventMap
if call.args then
for i = 1, 2 do
local eventArg = call.args[i + fixIndex]
if not eventArg then
break
end
eventMap = vm.getLiterals(eventArg)
if eventMap then
eventIndex = i
break
end
end
end
for n in callNode:eachObject() do
if n.type == 'function' then
local sign = getObjectSign(n)
local farg = getFuncArg(n, myIndex)
if farg then
for fn in vm.compileNode(farg):eachObject() do
if isValidCallArgNode(arg, fn) then
if fn.type == 'doc.type.function' then
if sign then
local generic = vm.createGeneric(fn, sign)
local args = {}
for i = fixIndex + 1, myIndex - 1 do
args[#args+1] = call.args[i]
end
fn = generic:resolve(guide.getUri(call), args)
end
end
vm.setNode(arg, fn)
end
end
end
end
if n.type == 'doc.type.function' then
local myEvent
if n.args[eventIndex] then
local argNode = vm.compileNode(n.args[eventIndex])
myEvent = argNode:get(1)
end
if not myEvent
or not eventMap
or myIndex <= eventIndex
or myEvent.type ~= 'doc.type.string'
or eventMap[myEvent[1]] then
local farg = getFuncArg(n, myIndex)
if farg then
for fn in vm.compileNode(farg):eachObject() do
if isValidCallArgNode(arg, fn) then
vm.setNode(arg, fn)
end
end
end
end
end
end
end
---@param arg parser.object
---@param call parser.object
---@param index? integer
function vm.compileCallArg(arg, call, index)
if not index then
for i, carg in ipairs(call.args) do
if carg == arg then
index = i
break
end
end
end
local callNode = vm.compileNode(call.node)
compileCallArgNode(arg, call, callNode, 0, index)
if call.node.special == 'pcall'
or call.node.special == 'xpcall' then
local fixIndex = call.node.special == 'pcall' and 1 or 2
if call.args and call.args[1] then
callNode = vm.compileNode(call.args[1])
compileCallArgNode(arg, call, callNode, fixIndex, index - fixIndex)
end
end
return vm.getNode(arg)
end
---@param source parser.object
---@return vm.node
local function compileLocal(source)
vm.setNode(source, source)
local hasMarkDoc
if source.bindDocs then
hasMarkDoc = bindDocs(source)
end
local hasMarkParam
if source.type == 'self' and not hasMarkDoc then
hasMarkParam = true
if source.parent.type == 'callargs' then
-- obj:func(...)
if source.parent.parent and source.parent.parent.node and source.parent.parent.node.node then
vm.setNode(source, vm.compileNode(source.parent.parent.node.node))
end
else
-- function obj:func(...)
if source.parent.parent and source.parent.parent.parent and source.parent.parent.parent.node then
vm.setNode(source, vm.compileNode(source.parent.parent.parent.node))
end
end
end
local hasMarkValue
if source.value then
if not hasMarkDoc or guide.isLiteral(source.value) then
hasMarkValue = true
if source.value.type == 'table' then
vm.setNode(source, source.value)
elseif source.value.type ~= 'nil' then
vm.setNode(source, vm.compileNode(source.value))
end
end
end
-- function x.y(self, ...) --> function x:y(...)
if source[1] == 'self'
and not hasMarkDoc
and source.parent.type == 'funcargs'
and source.parent[1] == source then
local setfield = source.parent.parent.parent
if setfield.type == 'setfield' then
hasMarkParam = true
vm.setNode(source, vm.compileNode(setfield.node))
end
end
if source.parent.type == 'funcargs' and not hasMarkDoc and not hasMarkParam then
local func = source.parent.parent
local funcNode = vm.compileNode(func)
local hasDocArg
for n in funcNode:eachObject() do
if n.type == 'doc.type.function' then
for index, arg in ipairs(n.args) do
if func.args[index] == source then
local argNode = vm.compileNode(arg)
for an in argNode:eachObject() do
if an.type ~= 'doc.generic.name' then
vm.setNode(source, an)
end
end
hasDocArg = true
end
end
end
end
if not hasDocArg then
vm.setNode(source, vm.declareGlobal('type', 'any'))
end
end
-- for x in ... do
if source.parent.type == 'in' then
vm.compileNode(source.parent)
end
-- for x = ... do
if source.parent.type == 'loop' then
vm.compileNode(source.parent)
end
vm.getNode(source):setData('hasDefined', hasMarkDoc or hasMarkParam or hasMarkValue)
end
local compilerSwitch = util.switch()
: case 'nil'
: case 'boolean'
: case 'integer'
: case 'number'
: case 'string'
: case 'doc.type.function'
: case 'doc.type.table'
: case 'doc.type.array'
: call(function (source)
vm.setNode(source, source)
end)
: case 'table'
: call(function (source)
vm.setNode(source, source)
if source.parent.type == 'callargs' then
local call = source.parent.parent
vm.compileCallArg(source, call)
end
if source.parent.type == 'setglobal'
or source.parent.type == 'local'
or source.parent.type == 'setlocal'
or source.parent.type == 'tablefield'
or source.parent.type == 'tableindex'
or source.parent.type == 'setfield'
or source.parent.type == 'setindex' then
vm.setNode(source, vm.compileNode(source.parent))
end
end)
: case 'function'
: call(function (source)
vm.setNode(source, source)
if source.bindDocs then
for _, doc in ipairs(source.bindDocs) do
if doc.type == 'doc.overload' then
vm.setNode(source, vm.compileNode(doc))
end
end
end
-- table.sort(string[], function (<?x?>) end)
if source.parent.type == 'callargs' then
local call = source.parent.parent
vm.compileCallArg(source, call)
end
end)
: case 'paren'
: call(function (source)
if bindAs(source) then
return
end
if source.exp then
vm.setNode(source, vm.compileNode(source.exp))
end
end)
: case 'local'
: case 'self'
---@param source parser.object
: call(function (source)
compileLocal(source)
local refs = source.ref
if not refs then
return
end
local hasMark = vm.getNode(source):getData 'hasDefined'
local runner = vm.createRunner(source)
runner:launch(function (src, node)
if src.type == 'setlocal' then
if src.bindDocs then
for _, doc in ipairs(src.bindDocs) do
if doc.type == 'doc.type' then
vm.setNode(src, vm.compileNode(doc), true)
return vm.getNode(src)
end
end
end
if src.value and guide.isLiteral(src.value) then
if src.value.type == 'table' then
vm.setNode(src, vm.createNode(src.value), true)
else
vm.setNode(src, vm.compileNode(src.value), true)
end
elseif src.value
and src.value.type == 'binary'
and src.value.op and src.value.op.type == 'or'
and src.value[1] and src.value[1].type == 'getlocal' and src.value[1].node == source then
-- x = x or 1
vm.setNode(src, vm.compileNode(src.value))
else
vm.setNode(src, node, true)
end
return vm.getNode(src)
elseif src.type == 'getlocal' then
if bindAs(src) then
return
end
vm.setNode(src, node, true)
end