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local vm = require 'vm.vm'
local guide = require 'parser.guide'
local library = require 'library'
local function getLibrary(source, simple)
if source.type == 'library' then
return source
end
if source.library then
return source.library
end
if source.type == 'getglobal'
or source.type == 'setglobal' then
if source.node and source.node.type == 'local' then
local lib = library.global[guide.getName(source)]
if lib then
return lib
end
end
end
local defs = vm.getDefs(source, simple)
for _, def in ipairs(defs) do
if def.type == 'library' then
return def
end
end
return nil
end
function vm.getLibrary(source, simple)
if simple then
return getLibrary(source, simple) or false
end
local cache = vm.getCache('getLibrary')[source]
if cache ~= nil then
return cache
end
local unlock = vm.lock('getLibrary', source)
if not unlock then
return
end
cache = getLibrary(source) or false
vm.getCache('getLibrary')[source] = cache
unlock()
return cache
end
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