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|
local guide = require 'parser.guide'
local require = require
local tableUnpack = table.unpack
local error = error
local setmetatable = setmetatable
_ENV = nil
---@class engineer
local mt = {}
mt.__index = mt
mt.type = 'engineer'
mt['local'] = require 'core.local'
mt['getlocal'] = require 'core.getlocal'
mt['setlocal'] = mt['getlocal']
mt['getglobal'] = require 'core.getglobal'
mt['setglobal'] = mt['getglobal']
mt['field'] = require 'core.field'
mt['method'] = require 'core.method'
mt['index'] = require 'core.index'
mt['number'] = require 'core.number'
mt['boolean'] = require 'core.boolean'
mt['string'] = require 'core.string'
mt['table'] = require 'core.table'
mt['select'] = require 'core.select'
function mt:getSpecialName(source)
if source.type == 'getglobal' then
local node = source.node
if node.tag ~= '_ENV' then
return
end
local name = guide.getKeyName(source)
if name:sub(1, 2) ~= 's|' then
return nil
end
return name:sub(3)
elseif source.type == 'local' then
if source.tag == '_ENV' then
return '_G'
end
return nil
elseif source.type == 'getlocal' then
local loc = source.loc
if loc.tag == '_ENV' then
return '_G'
end
end
end
function mt:eachSpecial(callback)
local env = guide.getENV(self.ast)
if not env then
return
end
local refs = env.ref
if not refs then
return
end
for i = 1, #refs do
local ref = refs[i]
if ref.type == 'getglobal' then
callback(ref[1], ref)
end
end
end
function mt:eachField(source, key, callback)
local cache = self.cache.field[source]
if cache and cache[key] then
for i = 1, #cache[key] do
callback(tableUnpack(cache[key][i]))
end
return
end
local tp = source.type
local d = mt[tp]
if not d then
return
end
local f = d.field
if not f then
return
end
if self.step >= 100 then
error('Stack overflow!')
return
end
self.step = self.step + 1
local mark = {}
if not cache then
cache = {}
self.cache.field[source] = cache
end
cache[key] = {}
f(self, source, key, function (src, ...)
if mark[src] then
return
end
mark[src] = true
cache[key][#cache[key]+1] = { src, ... }
callback(src, ...)
end)
self.step = self.step - 1
end
function mt:eachRef(source, callback)
local cache = self.cache.ref[source]
if cache then
for i = 1, #cache do
callback(tableUnpack(cache[i]))
end
return
end
local tp = source.type
local d = mt[tp]
if not d then
return
end
local f = d.ref
if not f then
return
end
if self.step >= 100 then
error('Stack overflow!')
return
end
self.step = self.step + 1
cache = {}
self.cache.ref[source] = cache
local mark = {}
f(self, source, function (src, ...)
if mark[src] then
return
end
mark[src] = true
cache[#cache+1] = {src, ...}
callback(src, ...)
end)
self.step = self.step - 1
end
function mt:eachDef(source, callback)
local cache = self.cache.def[source]
if cache then
for i = 1, #cache do
callback(tableUnpack(cache[i]))
end
return
end
local tp = source.type
local d = mt[tp]
if not d then
return
end
local f = d.def
if not f then
return
end
if self.step >= 100 then
error('Stack overflow!')
return
end
self.step = self.step + 1
cache = {}
self.cache.def[source] = cache
local mark = {}
f(self, source, function (src, ...)
if mark[src] then
return
end
mark[src] = true
cache[#cache+1] = {src, ...}
callback(src, ...)
end)
self.step = self.step - 1
end
function mt:eachValue(source, callback)
local cache = self.cache.value[source]
if cache then
for i = 1, #cache do
callback(tableUnpack(cache[i]))
end
return
end
local tp = source.type
local d = mt[tp]
if not d then
return
end
local f = d.value
if not f then
return
end
if self.step >= 100 then
error('Stack overflow!')
return
end
self.step = self.step + 1
cache = {}
self.cache.value[source] = cache
local mark = {}
f(self, source, function (src, ...)
if mark[src] then
return
end
mark[src] = true
cache[#cache+1] = {src, ...}
callback(src, ...)
end)
self.step = self.step - 1
end
function mt:childDef(source, callback)
local tp = source.type
if tp == 'setfield' then
callback(source.field, 'set')
elseif tp == 'setmethod' then
callback(source.method, 'set')
elseif tp == 'setindex' then
callback(source.index, 'set')
end
end
function mt:childRef(source, callback)
local tp = source.type
if tp == 'setfield' then
callback(source.field, 'set')
elseif tp == 'setmethod' then
callback(source.method, 'set')
elseif tp == 'setindex' then
callback(source.index, 'set')
elseif tp == 'getfield' then
callback(source.field, 'get')
elseif tp == 'getmethod' then
callback(source.method, 'get')
elseif tp == 'getindex' then
callback(source.index, 'get')
end
end
function mt:callArgOf(source)
if not source or source.type ~= 'call' then
return
end
local args = source.args
if not args then
return
end
return tableUnpack(args)
end
function mt:callReturnOf(source)
if not source or source.type ~= 'call' then
return
end
local parent = source.parent
local extParent = source.extParent
if extParent then
local returns = {parent.parent}
for i = 1, #extParent do
returns[i+1] = extParent[i].parent
end
return tableUnpack(returns)
elseif parent then
return parent.parent
end
end
return function (ast)
local self = setmetatable({
step = 0,
ast = ast.ast,
cache = {
def = {},
ref = {},
field = {},
value = {},
},
}, mt)
return self
end
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