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protobuf
Test decoding fixed packed fields
Gavin Morrow
(Sep 29, 2025, 6:47 AM EDT)
76b32cea
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test/packed-fields.pb
test/packed-fields.pb
This is a binary file and will not be displayed.
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test/packed-fields.protoscope.txt
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test/packed-fields.protoscope.txt
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test/protobuf_decode_gleam_test.gleam
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test/protobuf_decode_gleam_test.gleam
···
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import simplifile as file
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import decoders
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import protobuf_decode_gleam.{Parsed, read_varint, parse}
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import protobuf_decode_gleam.{Parsed, parse, read_fixed, read_varint}
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pub fn main() -> Nil {
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gleeunit.main()
···
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}
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type PackedFields {
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PackedFields(packed: List(Int), expanded: List(Int))
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PackedFields(
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packed: List(Int),
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expanded: List(Int),
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mixed_packed_and_expanded: List(Int),
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)
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}
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fn packed_fields_decoder() -> Decoder(PackedFields) {
···
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4,
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decoders.multiple(of: decoders.uint(), using: read_varint),
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)
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PackedFields(packed:, expanded:) |> decode.success
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use mixed_packed_and_expanded <- decode.field(
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decoders.multiple(of: decoders.fixed(32), using: read_fixed(32)),
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)
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PackedFields(packed:, expanded:, mixed_packed_and_expanded:) |> decode.success
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}
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pub fn packed_fields_test() {
···
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assert packed_fields
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== Parsed(
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value: PackedFields(packed: [0, 1, 2, 3], expanded: [4, 5, 6]),
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value: PackedFields(
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packed: [0, 1, 2, 3],
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expanded: [4, 5, 6],
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mixed_packed_and_expanded: [256, 22, 42, 101, 4_294_967_295, 0, 1],
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),
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rest: <<>>,
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pos: 14,
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pos: 48,
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)
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}