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extern crate byteorder;
extern crate uuid;
pub mod segment;
mod constants;
mod utils;
mod errors;
use uuid::Uuid;
use segment::Segment;
use errors::TupleError;
#[derive(Clone)]
pub struct Tuple {
buffer: Vec<u8>
}
impl Tuple {
pub fn new() -> Tuple {
Tuple {
buffer: Vec::with_capacity(128)
}
}
pub fn with_capacity(capacity: usize) -> Tuple {
Tuple {
buffer: Vec::with_capacity(capacity)
}
}
pub fn from_bytes(bytes: &[u8]) -> Tuple {
Tuple {
buffer: Vec::from(bytes)
}
}
pub fn add_segment(&mut self, input: &Segment) {
input.encode(&mut self.buffer);
}
pub fn add_builder(&mut self, input: &Tuple) {
self.buffer.extend_from_slice(&input.buffer);
}
pub fn into_bytes(self) -> Vec<u8> {
self.buffer
}
pub fn as_bytes(&self) -> &[u8] {
&self.buffer
}
pub fn as_segments(&self) -> Result<Vec<Segment>, TupleError> {
Segment::decode(&self.buffer)
}
}
pub trait AddToTuple<T> where Self : Sized {
fn add(&mut self, input: T);
fn with(mut self, input: T) -> Self {
self.add(input);
self
}
}
impl AddToTuple<i64> for Tuple {
fn add(&mut self, v: i64) {
self.add_segment(&Segment::Integer(v));
}
}
impl AddToTuple<String> for Tuple {
fn add(&mut self, v: String) {
self.add_segment(&Segment::String(v));
}
}
impl<'a> AddToTuple<&'a [u8]> for Tuple {
fn add(&mut self, v: &'a [u8]) {
self.add_segment(&Segment::Bytes(Vec::from(v)));
}
}
impl<'a> AddToTuple<&'a Vec<u8>> for Tuple {
fn add(&mut self, v: &'a Vec<u8>) {
self.add_segment(&Segment::Bytes(v.clone()));
}
}
impl AddToTuple<f32> for Tuple {
fn add(&mut self, v: f32) {
self.add_segment(&Segment::Float(v));
}
}
impl AddToTuple<f64> for Tuple {
fn add(&mut self, v: f64) {
self.add_segment(&Segment::Double(v));
}
}
impl AddToTuple<Vec<u8>> for Tuple {
fn add(&mut self, v: Vec<u8>) {
self.add_segment(&Segment::Bytes(v));
}
}
impl AddToTuple<&'static str> for Tuple {
fn add(&mut self, v: &'static str) {
self.add_segment(&Segment::Const(v));
}
}
impl AddToTuple<Uuid> for Tuple {
fn add(&mut self, v: Uuid) {
self.add_segment(&Segment::UUID(v));
}
}
impl AddToTuple<Vec<Segment>> for Tuple {
fn add(&mut self, v: Vec<Segment>) {
self.add_segment(&Segment::Nested(v));
}
}
impl<'a> AddToTuple<&'a Tuple> for Tuple {
fn add(&mut self, v: &'a Tuple) {
self.add_builder(&v);
}
}
impl AddToTuple<Tuple> for Tuple {
fn add(&mut self, v: Tuple) {
self.add_builder(&v);
}
}
#[macro_export]
macro_rules! tuple {
($( $x:expr ),*) => {
{
use $crate::{Tuple, AddToTuple};
let mut builder = Tuple::new();
$(
builder.add($x);
)*
builder
}
};
}
#[cfg(test)]
mod tests {
#[test]
fn test_tuple_macro() {
let result = tuple!("Test").into_bytes();
assert_eq!(result, vec![2, 84, 101, 115, 116, 0]);
}
#[test]
fn test_tuple_macro_prefix() {
let base_tuple = tuple!("user");
let result = tuple!(&base_tuple, "Test");
assert_eq!(result.into_bytes(), vec![2, 117, 115, 101, 114, 0, 2, 84, 101, 115, 116, 0]);
}
#[test]
fn test_vec_support() {
let tuple = tuple!(vec![1, 2, 3]);
assert_eq!(tuple.into_bytes(), vec![1, 1, 2, 3, 0]);
}
#[test]
fn test_u8_support() {
let binary: Vec<u8> = vec![1, 2, 3];
let tuple = tuple!(&binary);
assert_eq!(tuple.into_bytes(), vec![1, 1, 2, 3, 0]);
}
}