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Copy pathguide.lua
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1359 lines (1286 loc) · 35.3 KB
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local error = error
local type = type
---@class parser.object
---@field bindDocs parser.object[]
---@field bindGroup parser.object[]
---@field bindSource parser.object
---@field value parser.object
---@field parent parser.object
---@field type string
---@field special string
---@field tag string
---@field args { [integer]: parser.object, start: integer, finish: integer, type: string }
---@field locals parser.object[]
---@field returns? parser.object[]
---@field breaks? parser.object[]
---@field exps parser.object[]
---@field keys parser.object
---@field uri uri
---@field start integer
---@field finish integer
---@field range integer
---@field effect integer
---@field bstart integer
---@field bfinish integer
---@field attrs string[]
---@field specials parser.object[]
---@field labels parser.object[]
---@field node parser.object
---@field field parser.object
---@field method parser.object
---@field index parser.object
---@field extends parser.object[]|parser.object
---@field types parser.object[]
---@field fields parser.object[]
---@field tkey parser.object
---@field tvalue parser.object
---@field tindex integer
---@field op parser.object
---@field next parser.object
---@field docParam parser.object
---@field sindex integer
---@field name parser.object
---@field call parser.object
---@field closure parser.object
---@field proto parser.object
---@field exp parser.object
---@field alias parser.object
---@field class parser.object
---@field enum parser.object
---@field vararg parser.object
---@field param parser.object
---@field overload parser.object
---@field docParamMap table<string, integer>
---@field upvalues table<string, string[]>
---@field ref parser.object[]
---@field returnIndex integer
---@field assignIndex integer
---@field docIndex integer
---@field docs parser.object
---@field state table
---@field comment table
---@field optional boolean
---@field max parser.object
---@field init parser.object
---@field step parser.object
---@field redundant { max: integer, passed: integer }
---@field filter parser.object
---@field loc parser.object
---@field keyword integer[]
---@field casts parser.object[]
---@field mode? '+' | '-'
---@field hasGoTo? true
---@field hasReturn? true
---@field hasBreak? true
---@field hasExit? true
---@field virtual? boolean
---@field [integer] parser.object|any
---@field dot { type: string, start: integer, finish: integer }
---@field colon { type: string, start: integer, finish: integer }
---@field declare? boolean
---@field varargRef? boolean
---@field package _root parser.object
---@field package _eachCache? parser.object[]
---@field package _isGlobal? boolean
---@field package _typeCache? parser.object[][]
---@class guide
---@field debugMode boolean
local m = {}
m.ANY = {"<ANY>"}
m.notNamePattern = '[^%w_\x80-\xff]'
m.namePattern = '[%a_\x80-\xff][%w_\x80-\xff]*'
m.namePatternFull = '^' .. m.namePattern .. '$'
local blockTypes = {
['while'] = true,
['in'] = true,
['loop'] = true,
['repeat'] = true,
['do'] = true,
['function'] = true,
['if'] = true,
['ifblock'] = true,
['elseblock'] = true,
['elseifblock'] = true,
['main'] = true,
}
m.blockTypes = blockTypes
local topBlockTypes = {
['while'] = true,
['function'] = true,
['if'] = true,
['ifblock'] = true,
['elseblock'] = true,
['elseifblock'] = true,
['main'] = true,
}
local breakBlockTypes = {
['while'] = true,
['in'] = true,
['loop'] = true,
['repeat'] = true,
['for'] = true,
}
local childMap = {
['main'] = {'#', 'docs'},
['repeat'] = {'#', 'filter'},
['while'] = {'filter', '#'},
['in'] = {'keys', 'exps', '#'},
['loop'] = {'loc', 'init', 'max', 'step', '#'},
['do'] = {'#'},
['if'] = {'#'},
['ifblock'] = {'filter', '#'},
['elseifblock'] = {'filter', '#'},
['elseblock'] = {'#'},
['setfield'] = {'node', 'field', 'value'},
['getfield'] = {'node', 'field'},
['setmethod'] = {'node', 'method', 'value'},
['getmethod'] = {'node', 'method'},
['setindex'] = {'node', 'index', 'value'},
['getindex'] = {'node', 'index'},
['tableindex'] = {'index', 'value'},
['tablefield'] = {'field', 'value'},
['tableexp'] = {'value'},
['setglobal'] = {'value'},
['local'] = {'attrs', 'value'},
['setlocal'] = {'value'},
['return'] = {'#'},
['select'] = {'vararg'},
['table'] = {'#'},
['function'] = {'args', '#'},
['funcargs'] = {'#'},
['paren'] = {'exp'},
['call'] = {'node', 'args'},
['callargs'] = {'#'},
['list'] = {'#'},
['binary'] = {1, 2},
['unary'] = {1},
['...'] = {'name'},
['doc'] = {'#'},
['doc.class'] = {'class', '#extends', '#signs', 'docAttr', 'comment'},
['doc.type'] = {'#types', 'name', 'comment'},
['doc.alias'] = {'alias', 'docAttr', 'extends', 'comment'},
['doc.enum'] = {'enum', 'extends', 'comment', 'docAttr'},
['doc.param'] = {'param', 'extends', 'comment'},
['doc.return'] = {'#returns', 'comment'},
['doc.field'] = {'field', 'extends', 'comment'},
['doc.generic'] = {'#generics', 'comment'},
['doc.generic.object'] = {'generic', 'extends', 'comment'},
['doc.vararg'] = {'vararg', 'comment'},
['doc.type.array'] = {'node'},
['doc.type.function'] = {'#args', '#returns', 'comment'},
['doc.type.table'] = {'#fields', 'comment'},
['doc.type.literal'] = {'node'},
['doc.type.arg'] = {'name', 'extends'},
['doc.type.field'] = {'name', 'extends'},
['doc.type.sign'] = {'node', '#signs'},
['doc.overload'] = {'overload', 'comment'},
['doc.see'] = {'name', 'comment'},
['doc.version'] = {'#versions'},
['doc.diagnostic'] = {'#names'},
['doc.as'] = {'as'},
['doc.cast'] = {'name', '#casts'},
['doc.cast.block'] = {'extends'},
['doc.operator'] = {'op', 'exp', 'extends'},
['doc.meta'] = {'name'},
['doc.attr'] = {'#names'},
}
---@type table<string, fun(obj: parser.object, list: parser.object[])>
local compiledChildMap = setmetatable({}, {__index = function (self, name)
local defs = childMap[name]
if not defs then
self[name] = false
return false
end
local text = {}
text[#text+1] = 'local obj, list = ...'
for _, def in ipairs(defs) do
if def == '#' then
text[#text+1] = [[
for i = 1, #obj do
list[#list+1] = obj[i]
end
]]
elseif type(def) == 'string' and def:sub(1, 1) == '#' then
local key = def:sub(2)
text[#text+1] = ([[
local childs = obj.%s
if childs then
for i = 1, #childs do
list[#list+1] = childs[i]
end
end
]]):format(key)
elseif type(def) == 'string' then
text[#text+1] = ('list[#list+1] = obj.%s'):format(def)
else
text[#text+1] = ('list[#list+1] = obj[%q]'):format(def)
end
end
local buf = table.concat(text, '\n')
local f = load(buf, buf, 't')
self[name] = f
return f
end})
local eachChildMap = setmetatable({}, {__index = function (self, name)
local defs = childMap[name]
if not defs then
self[name] = false
return false
end
local text = {}
text[#text+1] = 'local obj, callback = ...'
for _, def in ipairs(defs) do
if def == '#' then
text[#text+1] = [[
for i = 1, #obj do
callback(obj[i])
end
]]
elseif type(def) == 'string' and def:sub(1, 1) == '#' then
local key = def:sub(2)
text[#text+1] = ([[
local childs = obj.%s
if childs then
for i = 1, #childs do
callback(childs[i])
end
end
]]):format(key)
elseif type(def) == 'string' then
text[#text+1] = ('callback(obj.%s)'):format(def)
else
text[#text+1] = ('callback(obj[%q])'):format(def)
end
end
local buf = table.concat(text, '\n')
local f = load(buf, buf, 't')
self[name] = f
return f
end})
m.actionMap = {
['main'] = {'#'},
['repeat'] = {'#'},
['while'] = {'#'},
['in'] = {'#'},
['loop'] = {'#'},
['if'] = {'#'},
['ifblock'] = {'#'},
['elseifblock'] = {'#'},
['elseblock'] = {'#'},
['do'] = {'#'},
['function'] = {'#'},
['funcargs'] = {'#'},
}
--- 是否是字面量
---@param obj table
---@return boolean
function m.isLiteral(obj)
local tp = obj.type
return tp == 'nil'
or tp == 'boolean'
or tp == 'string'
or tp == 'number'
or tp == 'integer'
or tp == 'table'
or tp == 'function'
or tp == 'doc.type.function'
or tp == 'doc.type.table'
or tp == 'doc.type.string'
or tp == 'doc.type.integer'
or tp == 'doc.type.boolean'
or tp == 'doc.type.code'
or tp == 'doc.type.array'
end
--- 获取字面量
---@param obj table
---@return any
function m.getLiteral(obj)
if m.isLiteral(obj) then
return obj[1]
end
return nil
end
--- 寻找父函数
---@param obj parser.object
---@return parser.object?
function m.getParentFunction(obj)
for _ = 1, 10000 do
obj = obj.parent
if not obj then
break
end
local tp = obj.type
if tp == 'function' or tp == 'main' then
return obj
end
end
return nil
end
--- 寻找所在区块
---@param obj parser.object
---@return parser.object?
function m.getBlock(obj)
for _ = 1, 10000 do
if not obj then
return nil
end
local tp = obj.type
if blockTypes[tp] then
return obj
end
if obj == obj.parent then
error('obj == obj.parent?' .. obj.type)
end
obj = obj.parent
end
-- make stack
local stack = {}
for _ = 1, 10 do
stack[#stack+1] = ('%s:%s'):format(obj.type, obj.finish)
obj = obj.parent
if not obj then
break
end
end
error('guide.getBlock overstack:' .. table.concat(stack, ' -> '))
end
--- 寻找所在父区块
---@param obj parser.object
---@return parser.object?
function m.getParentBlock(obj)
for _ = 1, 10000 do
obj = obj.parent
if not obj then
return nil
end
local tp = obj.type
if blockTypes[tp] then
return obj
end
end
error('guide.getParentBlock overstack')
end
--- 寻找所在可break的父区块
---@param obj parser.object
---@return parser.object?
function m.getBreakBlock(obj)
for _ = 1, 10000 do
obj = obj.parent
if not obj then
return nil
end
local tp = obj.type
if breakBlockTypes[tp] then
return obj
end
if tp == 'function' then
return nil
end
end
error('guide.getBreakBlock overstack')
end
--- 寻找doc的主体
---@param obj parser.object
---@return parser.object
function m.getDocState(obj)
for _ = 1, 10000 do
local parent = obj.parent
if not parent then
return obj
end
if parent.type == 'doc' then
return obj
end
obj = parent
end
error('guide.getDocState overstack')
end
--- 寻找所在父类型
---@param obj parser.object
---@return parser.object?
function m.getParentType(obj, want)
for _ = 1, 10000 do
obj = obj.parent
if not obj then
return nil
end
if want == obj.type then
return obj
end
end
error('guide.getParentType overstack')
end
--- 寻找所在父类型
---@param obj parser.object
---@return parser.object?
function m.getParentTypes(obj, wants)
for _ = 1, 10000 do
obj = obj.parent
if not obj then
return nil
end
if wants[obj.type] then
return obj
end
end
error('guide.getParentTypes overstack')
end
--- 寻找根区块
---@param obj parser.object
---@return parser.object
function m.getRoot(obj)
local source = obj
if source._root then
return source._root
end
for _ = 1, 10000 do
if obj.type == 'main' then
source._root = obj
return obj
end
if obj._root then
source._root = obj._root
return source._root
end
local parent = obj.parent
if not parent then
error('Can not find out root:' .. tostring(obj.type))
end
obj = parent
end
error('guide.getRoot overstack')
end
---@param obj parser.object | { uri: uri }
---@return uri
function m.getUri(obj)
if obj.uri then
return obj.uri
end
local root = m.getRoot(obj)
if root then
return root.uri or ''
end
return ''
end
---@return parser.object?
function m.getENV(source, start)
if not start then
start = 1
end
return m.getLocal(source, '_ENV', start)
or m.getLocal(source, '@fenv', start)
end
--- 获取指定区块中可见的局部变量
---@param source parser.object
---@param name string # 变量名
---@param pos integer # 可见位置
---@return parser.object?
function m.getLocal(source, name, pos)
local block = source
-- find nearest source
for _ = 1, 10000 do
if not block then
return nil
end
if block.type == 'main' then
break
end
if block.start <= pos
and block.finish >= pos
and blockTypes[block.type] then
break
end
block = block.parent
end
m.eachSourceContain(block, pos, function (src)
if blockTypes[src.type]
and (src.finish - src.start) < (block.finish - src.start) then
block = src
end
end)
for _ = 1, 10000 do
if not block then
break
end
local res
if block.locals then
for _, loc in ipairs(block.locals) do
if loc[1] == name
and loc.effect <= pos then
if not res or res.effect < loc.effect then
res = loc
end
end
end
end
if res then
return res
end
block = block.parent
end
return nil
end
--- 获取指定区块中所有的可见局部变量名称
function m.getVisibleLocals(block, pos)
local result = {}
m.eachSourceContain(m.getRoot(block), pos, function (source)
local locals = source.locals
if locals then
for i = 1, #locals do
local loc = locals[i]
local name = loc[1]
if loc.effect <= pos then
result[name] = loc
end
end
end
end)
return result
end
--- 获取指定区块中可见的标签
---@param block parser.object
---@param name string
function m.getLabel(block, name)
local current = m.getBlock(block)
for _ = 1, 10000 do
if not current then
return nil
end
local labels = current.labels
if labels then
local label = labels[name]
if label then
return label
end
end
if current.type == 'function' then
return nil
end
current = m.getParentBlock(current)
end
error('guide.getLocal overstack')
end
function m.getStartFinish(source)
local start = source.start
local finish = source.finish
if source.bfinish and source.bfinish > finish then
finish = source.bfinish
end
if not start then
local first = source[1]
if not first then
return nil, nil
end
local last = source[#source]
start = first.start
finish = last.finish
end
return start, finish
end
function m.getRange(source)
local start = source.vstart or source.start
local finish = source.range or source.finish
if source.bfinish and source.bfinish > finish then
finish = source.bfinish
end
if not start then
local first = source[1]
if not first then
return nil, nil
end
local last = source[#source]
start = first.vstart or first.start
finish = last.range or last.finish
end
return start, finish
end
--- 判断source是否包含position
function m.isContain(source, position)
local start, finish = m.getStartFinish(source)
if not start then
return false
end
return start <= position and finish >= position
end
--- 判断position在source的影响范围内
---
--- 主要针对赋值等语句时，key包含value
function m.isInRange(source, position)
local start, finish = m.getRange(source)
if not start then
return false
end
return start <= position and finish >= position
end
function m.isBetween(source, tStart, tFinish)
local start, finish = m.getStartFinish(source)
if not start then
return false
end
return start <= tFinish and finish >= tStart
end
function m.isBetweenRange(source, tStart, tFinish)
local start, finish = m.getRange(source)
if not start then
return false
end
return start <= tFinish and finish >= tStart
end
--- 添加child
local function addChilds(list, obj)
local tp = obj.type
if not tp then
return
end
local f = compiledChildMap[tp]
if not f then
return
end
f(obj, list)
end
--- 遍历所有包含position的source
---@param ast parser.object
---@param position integer
---@param callback fun(src: parser.object): any
function m.eachSourceContain(ast, position, callback)
local list = { ast }
local mark = {}
while true do
local len = #list
if len == 0 then
return
end
local obj = list[len]
list[len] = nil
if not mark[obj] then
mark[obj] = true
if m.isInRange(obj, position) then
if m.isContain(obj, position) then
local res = callback(obj)
if res ~= nil then
return res
end
end
addChilds(list, obj)
end
end
end
end
--- 遍历所有在某个范围内的source
function m.eachSourceBetween(ast, start, finish, callback)
local list = { ast }
local mark = {}
while true do
local len = #list
if len == 0 then
return
end
local obj = list[len]
list[len] = nil
if not mark[obj] then
mark[obj] = true
if m.isBetweenRange(obj, start, finish) then
if m.isBetween(obj, start, finish) then
local res = callback(obj)
if res ~= nil then
return res
end
end
addChilds(list, obj)
end
end
end
end
local function getSourceTypeCache(ast)
local cache = ast._typeCache
if not cache then
cache = {}
ast._typeCache = cache
m.eachSource(ast, function (source)
local tp = source.type
if not tp then
return
end
local myCache = cache[tp]
if not myCache then
myCache = {}
cache[tp] = myCache
end
myCache[#myCache+1] = source
end)
end
return cache
end
--- 遍历所有指定类型的source
---@param ast parser.object
---@param ty string
---@param callback fun(src: parser.object): any
---@return any
function m.eachSourceType(ast, ty, callback)
local cache = getSourceTypeCache(ast)
local myCache = cache[ty]
if not myCache then
return
end
for i = 1, #myCache do
local res = callback(myCache[i])
if res ~= nil then
return res
end
end
end
---@param ast parser.object
---@param tps string[]
---@param callback fun(src: parser.object)
function m.eachSourceTypes(ast, tps, callback)
local cache = getSourceTypeCache(ast)
for x = 1, #tps do
local tpCache = cache[tps[x]]
if tpCache then
for i = 1, #tpCache do
callback(tpCache[i])
end
end
end
end
--- 遍历所有的source
---@param ast parser.object
---@param callback fun(src: parser.object): boolean?
function m.eachSource(ast, callback)
local cache = ast._eachCache
if not cache then
cache = { ast }
ast._eachCache = cache
local mark = {}
local index = 1
while true do
local obj = cache[index]
if not obj then
break
end
index = index + 1
if not mark[obj] then
mark[obj] = true
addChilds(cache, obj)
end
end
end
for i = 1, #cache do
local res = callback(cache[i])
if res == false then
return
end
end
end
---@param source parser.object
---@param callback fun(src: parser.object)
function m.eachChild(source, callback)
local f = eachChildMap[source.type]
if not f then
return
end
f(source, callback)
end
--- 获取指定的 special
---@param ast parser.object
---@param name string
---@param callback fun(src: parser.object)
function m.eachSpecialOf(ast, name, callback)
local root = m.getRoot(ast)
local state = root.state
if not state.specials then
return
end
local specials = state.specials[name]
if not specials then
return
end
for i = 1, #specials do
callback(specials[i])
end
end
--- 将 position 拆分成行号与列号
---
--- 第一行是0
---@param position integer
---@return integer row
---@return integer col
function m.rowColOf(position)
return position // 10000, position % 10000
end
--- 将行列合并为 position
---
--- 第一行是0
---@param row integer
---@param col integer
---@return integer
function m.positionOf(row, col)
return row * 10000 + math.min(col, 10000 - 1)
end
function m.positionToOffsetByLines(lines, position)
local row, col = m.rowColOf(position)
if row < 0 then
return 0
end
if row > #lines then
return lines.size
end
local offset = lines[row] + col - 1
if lines[row + 1] and offset >= lines[row + 1] then
return lines[row + 1] - 1
elseif offset > lines.size then
return lines.size
end
return offset
end
--- 返回全文光标位置
---@param state any
---@param position integer
function m.positionToOffset(state, position)
return m.positionToOffsetByLines(state.lines, position)
end
---@param lines integer[]
---@param offset integer
function m.offsetToPositionByLines(lines, offset)
local left = 0
local right = #lines
local row = 0
while true do
row = (left + right) // 2
if row == left then
if right ~= left then
if lines[right] - 1 <= offset then
row = right
end
end
break
end
local start = lines[row] - 1
if start > offset then
right = row
else
left = row
end
end
local col = offset - lines[row] + 1
return m.positionOf(row, col)
end
function m.offsetToPosition(state, offset)
return m.offsetToPositionByLines(state.lines, offset)
end
function m.getLineRange(state, row)
if not state.lines[row] then
return 0
end
local nextLineStart = state.lines[row + 1] or #state.lua
for i = nextLineStart - 1, state.lines[row], -1 do
local w = state.lua:sub(i, i)
if w ~= '\r' and w ~= '\n' then
return i - state.lines[row] + 1
end
end
return 0
end
local assignTypeMap = {
['setglobal'] = true,
['local'] = true,
['self'] = true,
['setlocal'] = true,
['setfield'] = true,
['setmethod'] = true,
['setindex'] = true,
['tablefield'] = true,
['tableindex'] = true,
['tableexp'] = true,
['label'] = true,
['doc.class'] = true,
['doc.alias'] = true,
['doc.enum'] = true,
['doc.field'] = true,
['doc.class.name'] = true,
['doc.alias.name'] = true,
['doc.enum.name'] = true,
['doc.field.name'] = true,
['doc.type.field'] = true,
['doc.type.array'] = true,
}
function m.isAssign(source)
local tp = source.type
if assignTypeMap[tp] then
return true
end
if tp == 'call' then
local special = m.getSpecial(source.node)
if special == 'rawset' then
return true
end
end
return false
end
local getTypeMap = {
['getglobal'] = true,
['getlocal'] = true,
['getfield'] = true,
['getmethod'] = true,
['getindex'] = true,
}
function m.isGet(source)
local tp = source.type
if getTypeMap[tp] then
return true
end
if tp == 'call' then
local special = m.getSpecial(source.node)
if special == 'rawget' then
return true
end
end
return false
end
function m.getSpecial(source)
if not source then
return nil
end
return source.special
end