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Add nil/false/true to structure encoding
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lib/encoding/structure.ex
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lib/encoding/structure.ex
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defmodule Hobbes.Encoding.Structure do
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import ExUnit.Assertions, only: [assert: 1]
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@escape 0xFF
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@escape 0xFF
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@nil_value 0x00
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@int_neg_8 0x0C
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@int_neg_7 0x0D
···
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@int_pos_6 0x1B
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@int_pos_7 0x1C
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@int_pos_8 0x1D
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@bool_false 0x26
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@bool_true 0x27
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def pack(fields) do
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encode(fields, "", "", 0)
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encode(fields_rest, header_acc, body_acc, field_id)
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end
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defp encode_field(nil), do: {<<@nil_value>>, ""}
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defp encode_field(false), do: {<<@bool_false>>, ""}
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defp encode_field(true), do: {<<@bool_true>>, ""}
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defp encode_field(int) when is_integer(int) and int < 0 do
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binary = :binary.encode_unsigned(-int)
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case byte_size(binary) do
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decode_header(rest, acc, pos, id)
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end
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defp decode_size(@nil_value, bin), do: {0, bin}
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defp decode_size(@bool_false, bin), do: {0, bin}
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defp decode_size(@bool_true, bin), do: {0, bin}
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defp decode_size(@int_neg_8, bin), do: {8, bin}
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defp decode_size(@int_neg_7, bin), do: {7, bin}
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defp decode_size(@int_neg_6, bin), do: {6, bin}
···
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@int_pos_1, @int_pos_2, @int_pos_3, @int_pos_4,
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@int_pos_5, @int_pos_6, @int_pos_7, @int_pos_8,
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]
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defp decode_value(@nil_value, _pos, _size, _data), do: nil
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defp decode_value(@bool_false, _pos, _size, _data), do: false
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defp decode_value(@bool_true, _pos, _size, _data), do: true
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defp decode_value(int_type, pos, size, data) when int_type in @neg_int_types do
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<<_prefix::binary-size(pos), int::integer-unit(8)-size(size), _rest::binary>> = data