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local vm = require 'vm.vm'
local guide = require 'parser.guide'
local function lookUpDocClass(source)
local infers = vm.getInfers(source)
for _, infer in ipairs(infers) do
if infer.source.type == 'doc.class'
or infer.source.type == 'doc.type' then
return infer.type
end
end
end
local function getClass(source, classes, depth, deep)
local lib = vm.getLibrary(source, deep)
if lib then
if lib.value.type == 'table' then
classes[#classes+1] = lib.value.name
else
classes[#classes+1] = lib.value.type
end
return
end
local docClass = lookUpDocClass(source)
if docClass then
classes[#classes+1] = docClass
return
end
if depth > 3 then
return
end
local value = guide.getObjectValue(source) or source
if not deep then
if value and value.type == 'string' then
classes[#classes+1] = value[1]
end
else
for _, src in ipairs(vm.getFields(value)) do
local key = vm.getKeyName(src)
if not key then
goto CONTINUE
end
local lkey = key:lower()
if lkey == 's|type'
or lkey == 's|__name'
or lkey == 's|name'
or lkey == 's|class' then
local value = guide.getObjectValue(src)
if value and value.type == 'string' then
classes[#classes+1] = value[1]
end
end
::CONTINUE::
end
end
if #classes ~= 0 then
return
end
vm.eachMeta(source, function (mt)
getClass(mt, classes, depth + 1, deep)
end)
end
function vm.getClass(source, deep)
local classes = {}
getClass(source, classes, 1, deep)
if #classes == 0 then
return nil
end
return guide.mergeTypes(classes)
end
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