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/// Prepend the length of `buf` to `buf`
pub fn prepend_byte_len(buf: &mut Vec<u8>) {
let len: i32 = buf.len().try_into().unwrap();
let ulen: &[u8] = &len.to_be_bytes();
buf.insert(0, ulen[3]);
buf.insert(0, ulen[2]);
buf.insert(0, ulen[1]);
buf.insert(0, ulen[0]);
}
/// Insert a bytes `input` into `buf` at position `pos`
pub fn insert_bytes(pos: usize, buf: &mut Vec<u8>, input: &mut [u8]) {
input.reverse();
for i in input {
buf.insert(pos, *i)
}
}
/// Easily create HashMaps for tests
///
/// ```rust
/// use libquassel::{map, s};
/// use libquassel::primitive::{Variant, VariantMap};
///
/// let example: VariantMap = map! {
/// s!("id") => Variant::VariantList(vec![Variant::i32(1)]),
/// s!("name") => Variant::StringList(vec![s!("testrule")]),
///};
/// ```
#[macro_export]
macro_rules! map {
// map-like
($($k:expr => $v:expr),* $(,)?) => {
std::iter::Iterator::collect(std::iter::IntoIterator::into_iter([$(($k, $v),)*]))
};
// set-like
($($v:expr),* $(,)?) => {
std::iter::Iterator::collect(std::iter::IntoIterator::into_iter([$($v,)*]))
};
}
/// Shorthand to make an owned string: `s!("example text")`
#[macro_export]
macro_rules! s {
($values:expr) => {
std::string::String::from($values)
};
}
/// Remove the first entry in a SyncMessage
#[macro_export]
macro_rules! get_param {
( $msg:expr ) => {
$msg.params.remove(0).try_into()?
};
}
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