Function decode_packed

pub fn decode_packed(
    types: &[DecodeType],
    buffer: &[u8],
    decode_order: DecodeOrder,
) -> Result<Vec<DecodedData>, DecodeError>

decode_packed function decoded a given byte-array into list of required values specified in types parameter. Returns the list of decoded values Vec<DecodedData> or DecodeError.

Arguments

• types: List of required types to decode, example: &[DecodeType::Int8, DecodeType::Str(10)]
• buffer: Immutable reference to the slice that contains bytes to be decoded
• decode_order: the byte ordering to consider while decoding

Examples

extern crate packed_encoder;
use packed_encoder::decoder;

fn main() {

    // byte data to decode
    let bytes = vec![192, 24, 212, 73, 201, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 116, 104, 105, 115, 45, 105, 115, 45, 103, 111, 111, 100, 11, 230, 234, 49, 0, 0, 0, 0, 10, 255, 171, 18, 51];
    // required types to decode from the given byte array
    let required_types = &[
           decoder::DecodeType::Int128,
           decoder::DecodeType::Str(12),
           decoder::DecodeType::Uint64,
           decoder::DecodeType::Int8,
           decoder::DecodeType::Bytes(4),
       ];
     
    // decode
    let result = decoder::decode_packed(required_types, &bytes, decoder::DecodeOrder::Little);
    assert_eq!(result.is_ok(), true);

    // check values
    let decoded_data = result.unwrap();
    match &decoded_data[1] {
        decoder::DecodedData::Str(content) => {println!("decoded string at position 1: {}", content)},
        _ => {}
    }

}