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DSL for WebAssembly
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lib/orb/leb.ex
defmodule Orb.Leb do
def uleb128(0), do: [0]
def uleb128(n), do: uleb128(n, [])
defp uleb128(0, bytes), do: bytes |> Enum.reverse()
defp uleb128(value, bytes) do
import Bitwise
byte = value &&& 0x7F
value = value >>> 7
byte =
case value do
0 ->
byte
_ ->
byte ||| 0x80
end
uleb128(value, [byte | bytes])
end
end