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local guide = require 'parser.guide'
local files = require 'files'
local util = require 'utility'
local getValue = require 'searcher.getValue'
local getField = require 'searcher.getField'
local eachRef = require 'searcher.eachRef'
local eachField = require 'searcher.eachField'
local setmetatable = setmetatable
local assert = assert
_ENV = nil
local specials = {
['_G'] = true,
['rawset'] = true,
['rawget'] = true,
['setmetatable'] = true,
['require'] = true,
['dofile'] = true,
['loadfile'] = true,
}
---@class searcher
local mt = {}
mt.__index = mt
mt.__name = 'searcher'
function mt:lock(tp, source)
if self.locked[tp][source] then
return nil
end
self.locked[tp][source] = true
return util.defer(function ()
self.locked[tp][source] = nil
end)
end
--- 获取关联的值
---@param source table
---@return value table
function mt:getValue(source)
local lock <close> = self:lock('getValue', source)
if not lock then
return nil
end
return getValue(self, source)
end
--- 获取关联的field
---@param source table
---@return table field
function mt:getField(source)
return getField(self, source)
end
--- 获取所有的引用（不递归）
function mt:eachRef(source, callback)
local lock <close> = self:lock('eachRef', source)
if not lock then
return
end
local cache = self.cache.eachRef[source]
if cache then
for i = 1, #cache do
callback(cache[i])
end
return
end
cache = {}
self.cache.eachRef[source] = cache
eachRef(self, source, function (info)
cache[#cache+1] = info
callback(info)
end)
end
--- 获取所有的field（不递归）
function mt:eachField(source, callback)
local lock <close> = self:lock('eachField', source)
if not lock then
return
end
local cache = self.cache.eachField[source]
if cache then
for i = 1, #cache do
callback(cache[i])
end
return
end
cache = {}
self.cache.eachField[source] = cache
eachField(self, source, function (info)
cache[#cache+1] = info
callback(info)
end)
end
---@class engineer
local m = {}
--- 新建搜索器
---@param uri string
---@return searcher
function m.create(uri)
local ast = files.getAst(uri)
local searcher = setmetatable({
ast = ast.ast,
uri = uri,
cache = {
eachRef = {},
eachField = {},
},
locked = {
getValue = {},
eachRef = {},
eachField = {},
}
}, mt)
return searcher
end
return m
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