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local function parseLocal(vm, loc, lsp)
local positions = {}
positions[#positions+1] = {
loc.source.start,
loc.source.finish,
}
if #positions == 0 then
return nil
end
return positions
end
local function parseValue(vm, value, lsp)
local positions = {}
value:eachInfo(function (info)
if info.type == 'set' then
positions[#positions+1] = {
info.source.start,
info.source.finish,
}
end
end)
if #positions == 0 then
return nil
end
return positions
end
local function parseValueSimily(vm, source, lsp)
local key = source[1]
if not key then
return nil
end
local positions = {}
for _, other in ipairs(vm.sources) do
if other == source then
break
end
if other[1] == key and not other:bindLocal() and other:bindValue() and other:action() == 'set' then
positions[#positions+1] = {
other.start,
other.finish,
}
end
end
if #positions == 0 then
return nil
end
return positions
end
local function parseLabel(vm, label, lsp)
local positions = {}
label:eachInfo(function (info)
if info.type == 'set' then
positions[#positions+1] = {
info.source.start,
info.source.finish,
}
end
end)
if #positions == 0 then
return nil
end
return positions
end
return function (vm, source, lsp)
if not source then
return nil
end
if source:bindLocal() then
return parseLocal(vm, source:bindLocal(), lsp)
end
if source:bindValue() then
return parseValue(vm, source:bindValue(), lsp)
or parseValueSimily(vm, source, lsp)
end
if source:bindLabel() then
return parseLabel(vm, source:bindLabel(), lsp)
end
end
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