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local guide = require 'parser.guide'
local config = require 'config'
local type = type
local setmetatable = setmetatable
local ipairs = ipairs
_ENV = nil
---@class engineer
local mt = {}
mt.__index = mt
mt.type = 'engineer'
--- 查找所有局部变量引用
function mt:eachRefAsLocal(obj, callback)
callback(obj, 'local')
if obj.ref then
for _, ref in ipairs(obj.ref) do
if ref.type == 'setlocal' then
callback(ref, 'set')
elseif ref.type == 'getlocal' then
callback(ref, 'get')
end
end
end
end
--- 查找所有引用
function mt:eachRef(obj, callback)
if obj.type == 'local' then
self:eachRefAsLocal(obj, callback)
elseif obj.type == 'getlocal' or obj.type == 'setlocal' then
self:eachRefAsLocal(obj.loc, callback)
elseif obj.type == 'setglobal' or obj.type == 'getglobal' then
self:eachRefAsGlobal(obj, callback)
end
end
return function (ast)
if not ast.vm then
ast.vm = {}
end
local self = setmetatable({
step = 0,
ast = ast.ast,
}, mt)
return self
end
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