gwr

-module(types@vector).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).

-export([from_raw_data/2]).
-export_type([vector/0]).

-type vector() :: {vector, integer(), bitstring()}.

-spec from_raw_data(integer(), bitstring()) -> {ok, vector()} |
    {error, binary()}.
from_raw_data(Position, Raw_data) ->
    gleam@result:'try'(
        util:decode_u32leb128(Position, Raw_data),
        fun(_use0) ->
            {Vector_length, Vector_length_word_size} = _use0,
            gleam@bool:guard(
                ((Position + Vector_length_word_size) + Vector_length) > erlang:byte_size(
                    Raw_data
                ),
                {error,
                    <<<<<<<<"vector::from_raw_data: unexpected end of the vector's data. Expected = "/utf8,
                                    (gleam@int:to_string(Vector_length))/binary>>/binary,
                                " bytes but got = "/utf8>>/binary,
                            (gleam@int:to_string(
                                (erlang:byte_size(Raw_data) - Vector_length_word_size)
                                - Position
                            ))/binary>>/binary,
                        " bytes"/utf8>>},
                fun() ->
                    case gleam_stdlib:bit_array_slice(
                        Raw_data,
                        Position + Vector_length_word_size,
                        Vector_length
                    ) of
                        {ok, Vector_data} ->
                            {ok, {vector, Vector_length, Vector_data}};

                        {error, _} ->
                            {error,
                                <<"vector::from_raw_data: can't slice vector data"/utf8>>}
                    end
                end
            )
        end
    ).