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local guide = require 'parser.guide'
local workspace = require 'workspace'
local files = require 'files'
local vm = require 'vm'
local accept = {
['local'] = true,
['setlocal'] = true,
['getlocal'] = true,
['label'] = true,
['goto'] = true,
['field'] = true,
['method'] = true,
['setindex'] = true,
['getindex'] = true,
['tableindex'] = true,
['setglobal'] = true,
['getglobal'] = true,
}
local function findSource(ast, offset)
local len = 999
local result
guide.eachSourceContain(ast.ast, offset, function (source)
if source.finish - source.start < len and accept[source.type] then
result = source
len = source.finish - source.start
end
end)
return result
end
local function checkRequire(source, offset)
if source.type ~= 'call' then
return nil
end
local func = source.node
local pathSource = source.args and source.args[1]
if not pathSource then
return nil
end
if not guide.isContain(pathSource, offset) then
return nil
end
local literal = guide.getLiteral(pathSource)
if type(literal) ~= 'string' then
return nil
end
local lib = vm.getLibrary(func)
if not lib then
return nil
end
if lib.name == 'require' then
return workspace.findUrisByRequirePath(literal, true)
elseif lib.name == 'dofile'
or lib.name == 'loadfile' then
return workspace.findUrisByFilePath(literal, true)
end
return nil
end
return function (uri, offset)
local ast = files.getAst(uri)
if not ast then
return nil
end
local source = findSource(ast, offset)
if not source then
return nil
end
local results = {}
local uris = checkRequire(source)
if uris then
for i, uri in ipairs(uris) do
results[#uris+1] = {
uri = files.getOriginUri(uri),
source = source,
target = {
start = 0,
finish = 0,
}
}
end
end
local defs = guide.requestDefinition(source)
for _, src in ipairs(defs) do
results[#results+1] = {
target = src,
uri = files.getOriginUri(uri),
source = source,
}
end
if #results == 0 then
return nil
end
return results
end
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