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|
use std::{
collections::HashMap,
io::{self, Write},
sync::Arc,
};
use byteorder::{BigEndian, WriteBytesExt};
use super::{MAX_STRING_LENGTH, UnsizedByteArray};
fn write_utf_with_len(buf: &mut impl Write, string: &str, len: usize) -> io::Result<()> {
if string.len() > len {
panic!(
"String too big (was {} bytes encoded, max {})",
string.len(),
len
);
}
string.as_bytes().to_vec().azalea_write(buf)?;
Ok(())
}
pub trait AzaleaWrite {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()>;
}
pub trait AzaleaWriteVar {
fn azalea_write_var(&self, buf: &mut impl Write) -> io::Result<()>;
}
impl AzaleaWrite for i32 {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
WriteBytesExt::write_i32::<BigEndian>(buf, *self)
}
}
impl AzaleaWriteVar for i32 {
fn azalea_write_var(&self, buf: &mut impl Write) -> io::Result<()> {
let mut buffer = [0];
let mut value = *self;
if value == 0 {
buf.write_all(&buffer)?;
}
while value != 0 {
buffer[0] = (value & 0b0111_1111) as u8;
value = (value >> 7) & (i32::MAX >> 6);
if value != 0 {
buffer[0] |= 0b1000_0000;
}
buf.write_all(&buffer)?;
}
Ok(())
}
}
impl AzaleaWrite for UnsizedByteArray {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
buf.write_all(self)
}
}
impl<T: AzaleaWrite> AzaleaWrite for Vec<T> {
default fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
self[..].azalea_write(buf)
}
}
impl<T: AzaleaWrite> AzaleaWrite for Box<[T]> {
default fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
self[..].azalea_write(buf)
}
}
impl<T: AzaleaWrite> AzaleaWrite for [T] {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
(self.len() as u32).azalea_write_var(buf)?;
for item in self {
T::azalea_write(item, buf)?;
}
Ok(())
}
}
impl<K: AzaleaWrite, V: AzaleaWrite> AzaleaWrite for HashMap<K, V> {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
u32::azalea_write_var(&(self.len() as u32), buf)?;
for (key, value) in self {
key.azalea_write(buf)?;
value.azalea_write(buf)?;
}
Ok(())
}
}
impl<K: AzaleaWrite, V: AzaleaWriteVar> AzaleaWriteVar for HashMap<K, V> {
fn azalea_write_var(&self, buf: &mut impl Write) -> io::Result<()> {
u32::azalea_write_var(&(self.len() as u32), buf)?;
for (key, value) in self {
key.azalea_write(buf)?;
value.azalea_write_var(buf)?;
}
Ok(())
}
}
impl AzaleaWrite for Vec<u8> {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
(self.len() as u32).azalea_write_var(buf)?;
buf.write_all(self)
}
}
impl AzaleaWrite for String {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
write_utf_with_len(buf, self, MAX_STRING_LENGTH.into())
}
}
impl AzaleaWrite for &str {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
write_utf_with_len(buf, self, MAX_STRING_LENGTH.into())
}
}
impl AzaleaWrite for u32 {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
i32::azalea_write(&(*self as i32), buf)
}
}
impl AzaleaWriteVar for u32 {
fn azalea_write_var(&self, buf: &mut impl Write) -> io::Result<()> {
i32::azalea_write_var(&(*self as i32), buf)
}
}
impl AzaleaWriteVar for i64 {
fn azalea_write_var(&self, buf: &mut impl Write) -> io::Result<()> {
let mut buffer = [0];
let mut value = *self;
if value == 0 {
buf.write_all(&buffer).unwrap();
}
while value != 0 {
buffer[0] = (value & 0b0111_1111) as u8;
value = (value >> 7) & (i64::MAX >> 6);
if value != 0 {
buffer[0] |= 0b1000_0000;
}
buf.write_all(&buffer)?;
}
Ok(())
}
}
impl AzaleaWriteVar for u64 {
fn azalea_write_var(&self, buf: &mut impl Write) -> io::Result<()> {
i64::azalea_write_var(&(*self as i64), buf)
}
}
impl AzaleaWrite for u16 {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
i16::azalea_write(&(*self as i16), buf)
}
}
impl AzaleaWriteVar for u16 {
fn azalea_write_var(&self, buf: &mut impl Write) -> io::Result<()> {
i32::azalea_write_var(&(*self as i32), buf)
}
}
impl<T: AzaleaWriteVar> AzaleaWriteVar for [T] {
fn azalea_write_var(&self, buf: &mut impl Write) -> io::Result<()> {
u32::azalea_write_var(&(self.len() as u32), buf)?;
for i in self {
i.azalea_write_var(buf)?;
}
Ok(())
}
}
impl<T: AzaleaWriteVar> AzaleaWriteVar for Vec<T> {
fn azalea_write_var(&self, buf: &mut impl Write) -> io::Result<()> {
self[..].azalea_write_var(buf)
}
}
impl<T: AzaleaWriteVar> AzaleaWriteVar for Box<[T]> {
fn azalea_write_var(&self, buf: &mut impl Write) -> io::Result<()> {
self[..].azalea_write_var(buf)
}
}
impl AzaleaWrite for u8 {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
WriteBytesExt::write_u8(buf, *self)
}
}
impl AzaleaWrite for i16 {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
WriteBytesExt::write_i16::<BigEndian>(buf, *self)
}
}
impl AzaleaWrite for i64 {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
WriteBytesExt::write_i64::<BigEndian>(buf, *self)
}
}
impl AzaleaWrite for u64 {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
i64::azalea_write(&(*self as i64), buf)
}
}
impl AzaleaWrite for bool {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
let byte = u8::from(*self);
byte.azalea_write(buf)
}
}
impl AzaleaWrite for i8 {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
(*self as u8).azalea_write(buf)
}
}
impl AzaleaWrite for f32 {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
WriteBytesExt::write_f32::<BigEndian>(buf, *self)
}
}
impl AzaleaWrite for f64 {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
WriteBytesExt::write_f64::<BigEndian>(buf, *self)
}
}
impl<T: AzaleaWrite> AzaleaWrite for Option<T> {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
if let Some(s) = self {
true.azalea_write(buf)?;
s.azalea_write(buf)?;
} else {
false.azalea_write(buf)?;
};
Ok(())
}
}
impl<T: AzaleaWriteVar> AzaleaWriteVar for Option<T> {
fn azalea_write_var(&self, buf: &mut impl Write) -> io::Result<()> {
if let Some(s) = self {
true.azalea_write(buf)?;
s.azalea_write_var(buf)?;
} else {
false.azalea_write(buf)?;
};
Ok(())
}
}
// [T; N]
impl<T: AzaleaWrite, const N: usize> AzaleaWrite for [T; N] {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
for i in self {
i.azalea_write(buf)?;
}
Ok(())
}
}
impl AzaleaWrite for simdnbt::owned::NbtTag {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
let mut data = Vec::new();
self.write(&mut data);
buf.write_all(&data)
}
}
impl AzaleaWrite for simdnbt::owned::NbtCompound {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
let mut data = Vec::new();
simdnbt::owned::NbtTag::Compound(self.clone()).write(&mut data);
buf.write_all(&data)
}
}
impl AzaleaWrite for simdnbt::owned::Nbt {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
let mut data = Vec::new();
self.write_unnamed(&mut data);
buf.write_all(&data)
}
}
impl<T> AzaleaWrite for Box<T>
where
T: AzaleaWrite,
{
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
T::azalea_write(&**self, buf)
}
}
impl<A: AzaleaWrite, B: AzaleaWrite> AzaleaWrite for (A, B) {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
self.0.azalea_write(buf)?;
self.1.azalea_write(buf)
}
}
impl<T: AzaleaWrite> AzaleaWrite for Arc<T> {
fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
T::azalea_write(&**self, buf)
}
}
|
