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use crate::*;
impl<T> Serialize for [T; 0] {
#[inline]
fn json_write<W>(&self, writer: &mut W) -> io::Result<()>
where
W: Write,
{
writer.write_all(b"[]")
}
}
macro_rules! array_impls {
($($len:tt)+) => {
$(
impl<T> Serialize for [T; $len]
where
T: Serialize,
{
#[inline]
fn json_write<W>(&self, writer: &mut W) -> io::Result<()>
where
W: Write,
{
let mut i = self.iter();
if let Some(first) = i.next() {
if let Err(e) = writer.write_all(b"["){
return Err(e);
};
if let Err(e) = first.json_write(writer){
return Err(e);
};
for e in i {
if let Err(e) = writer.write_all(b","){
return Err(e);
};
if let Err(e) = e.json_write(writer){
return Err(e);
};
}
writer.write_all(b"]")
} else {
unreachable!()
}
}
}
)+
}
}
array_impls! {
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}
#[cfg(test)]
mod test {
use crate::*;
#[test]
fn arr() {
let s: [u8; 0] = [];
assert_eq!(s.json_string().unwrap(), "[]");
assert_eq!([1].json_string().unwrap(), "[1]");
assert_eq!([1, 2].json_string().unwrap(), "[1,2]");
assert_eq!([1, 2, 3].json_string().unwrap(), "[1,2,3]");
}
#[test]
fn slice() {
let s: [u8; 0] = [];
assert_eq!((&s).json_string().unwrap(), "[]");
assert_eq!((&[1]).json_string().unwrap(), "[1]");
assert_eq!((&[1, 2]).json_string().unwrap(), "[1,2]");
assert_eq!((&[1, 2, 3]).json_string().unwrap(), "[1,2,3]");
}
}