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local vm = require 'vm.vm'
local guide = require 'parser.guide'
NIL = setmetatable({'<nil>'}, { __tostring = function () return 'nil' end })
--- 是否包含某种类型
function vm.hasType(source, type)
local infers = vm.getInfers(source)
for i = 1, #infers do
local infer = infers[i]
if infer.type == type then
return true
end
end
return false
end
function vm.getType(source)
local infers = vm.getInfers(source)
return guide.viewInfer(infers)
end
--- 获取对象的值
--- 会尝试穿透函数调用
function vm.getInfers(source)
if not source then
return
end
return guide.requestInfer(source, vm.interface)
end
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