shenjack/nbt-rust
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go with i8

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This commit is contained in:
shenjack 2023-08-05 19:00:08 +08:00
parent b36d65a0f7
commit 1b5a22f3bc
Signed by: shenjack
GPG Key ID: 7B1134A979775551
5 changed files with 257 additions and 136 deletions
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91
Cargo.lock generated
View File

@ -2,6 +2,97 @@
# It is not intended for manual editing.
version = 3
[[package]]
name = "byteorder"
version = "1.4.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
[[package]]
name = "cesu8"
version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6d43a04d8753f35258c91f8ec639f792891f748a1edbd759cf1dcea3382ad83c"
[[package]]
name = "fastnbt"
version = "2.4.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3369bd70629bccfda7e344883c9ae3ab7f3b10a357bcf8b0f69caa7256bcf188"
dependencies = [
"byteorder",
"cesu8",
"serde",
"serde_bytes",
]
[[package]]
name = "nbt-rust"
version = "0.1.0"
dependencies = [
"fastnbt",
]
[[package]]
name = "proc-macro2"
version = "1.0.66"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "18fb31db3f9bddb2ea821cde30a9f70117e3f119938b5ee630b7403aa6e2ead9"
dependencies = [
"unicode-ident",
]
[[package]]
name = "quote"
version = "1.0.32"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "50f3b39ccfb720540debaa0164757101c08ecb8d326b15358ce76a62c7e85965"
dependencies = [
"proc-macro2",
]
[[package]]
name = "serde"
version = "1.0.181"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6d3e73c93c3240c0bda063c239298e633114c69a888c3e37ca8bb33f343e9890"
dependencies = [
"serde_derive",
]
[[package]]
name = "serde_bytes"
version = "0.11.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ab33ec92f677585af6d88c65593ae2375adde54efdbf16d597f2cbc7a6d368ff"
dependencies = [
"serde",
]
[[package]]
name = "serde_derive"
version = "1.0.181"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "be02f6cb0cd3a5ec20bbcfbcbd749f57daddb1a0882dc2e46a6c236c90b977ed"
dependencies = [
"proc-macro2",
"quote",
"syn",
]
[[package]]
name = "syn"
version = "2.0.28"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "04361975b3f5e348b2189d8dc55bc942f278b2d482a6a0365de5bdd62d351567"
dependencies = [
"proc-macro2",
"quote",
"unicode-ident",
]
[[package]]
name = "unicode-ident"
version = "1.0.11"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "301abaae475aa91687eb82514b328ab47a211a533026cb25fc3e519b86adfc3c"

1
Cargo.toml
View File

@ -6,6 +6,7 @@ edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
fastnbt = "2.4.4"
[features]
default = []

32
src/data.rs
View File

@ -1,7 +1,7 @@
use std::cell::RefCell;
use std::rc::Rc;
use std::collections::HashMap;
use std::io::{Cursor, Read, Seek, SeekFrom};
use std::rc::Rc;
use std::sync::Arc;
/// NBT 里除了字符串的长度量都是 i32
@ -14,6 +14,8 @@ pub type StringLength = u16;
/// Reader
pub type Reader<'a> = Cursor<&'a [u8]>;
pub type RawData<'data> = &'data [u8];
#[derive(Debug, Clone)]
pub enum NbtItem {
Value(NbtValue),
@ -22,7 +24,7 @@ pub enum NbtItem {
#[derive(Debug, Clone)]
pub enum NbtList {
BoolArray(Vec<bool>),
BoolArray(Vec<i8>),
IntArray(Vec<i32>),
LongArray(Vec<i64>),
List(Vec<NbtItem>),
@ -36,7 +38,7 @@ pub enum NbtValue {
/// 标志着一个 NBT Compound/List 的结束
End,
/// 0x01
Byte(bool),
Byte(i8),
/// 0x02
Short(i16),
/// 0x03
@ -92,9 +94,9 @@ impl From<Compound> for NbtItem {
fn from(value: Compound) -> Self { Self::Array(NbtList::from(value)) }
}
impl From<Vec<bool>> for NbtItem {
impl From<Vec<i8>> for NbtItem {
#[inline]
fn from(value: Vec<bool>) -> Self { Self::Array(NbtList::from(value)) }
fn from(value: Vec<i8>) -> Self { Self::Array(NbtList::from(value)) }
}
impl From<Vec<i32>> for NbtItem {
@ -114,14 +116,12 @@ impl From<Vec<NbtItem>> for NbtList {
impl From<Compound> for NbtList {
#[inline]
fn from(value: Compound) -> Self {
Self::Compound(value.0, Rc::new(RefCell::new(value.1)))
}
fn from(value: Compound) -> Self { Self::Compound(value.0, Rc::new(RefCell::new(value.1))) }
}
impl From<Vec<bool>> for NbtList {
impl From<Vec<i8>> for NbtList {
#[inline]
fn from(value: Vec<bool>) -> Self { Self::BoolArray(value) }
fn from(value: Vec<i8>) -> Self { Self::BoolArray(value) }
}
impl From<Vec<i32>> for NbtList {
@ -147,13 +147,13 @@ macro_rules! export_data {
}
macro_rules! read_data {
($name:ident, $nbt_name:ident, bool, 1) => {
($name:ident, $nbt_name:ident, $type:ty, 1) => {
/// 直接读取值 不带类型数据和名称
#[inline]
pub fn $name(value: &mut Reader) -> Self {
let mut buff = [0_u8];
_ = value.read(&mut buff).unwrap();
Self::$nbt_name(buff[0] != 0)
Self::$nbt_name(buff[0] as $type)
}
};
($name:ident, $nbt_name:ident, $type:ty, $len:expr) => {
@ -175,7 +175,7 @@ impl NbtValue {
}
}
export_data!(as_bool, Byte, bool);
export_data!(as_i8, Byte, i8);
export_data!(as_i16, Short, i16);
export_data!(as_i32, Int, i32);
export_data!(as_i64, Long, i64);
@ -189,7 +189,7 @@ impl NbtValue {
Self::End
}
read_data!(from_bool, Byte, bool, 1);
read_data!(from_i8, Byte, i8, 1);
read_data!(from_i16, Short, i16, 2);
read_data!(from_i32, Int, i32, 4);
read_data!(from_i64, Long, i64, 8);
@ -216,7 +216,7 @@ impl NbtValue {
_ = value.read(&mut value_type).unwrap();
match value_type {
[0x00] => Some(Self::End),
[0x01] => Some(Self::from_bool(value)),
[0x01] => Some(Self::from_i8(value)),
[0x02] => Some(Self::from_i16(value)),
[0x03] => Some(Self::from_i32(value)),
[0x04] => Some(Self::from_i64(value)),
@ -238,7 +238,7 @@ impl NbtValue {
[0x00] => Some((Self::End, Arc::from(""))),
[0x01] => {
let name = Self::from_string(value).as_string().unwrap();
Some((Self::from_bool(value), name))
Some((Self::from_i8(value), name))
}
[0x02] => {
let name = Self::from_string(value).as_string().unwrap();

237
src/main.rs
View File

@ -1,7 +1,7 @@
#![feature(buf_read_has_data_left)]
use std::io::Read;
use crate::data::Reader;
use std::io::Read;
mod data;
mod read;
@ -40,111 +40,119 @@ fn cli_read_test() {
fn small_read_test() {
let data: [u8; 0x21] = [
0x0A, 0x00, 0x0B, 0x68, 0x65, 0x6C, 0x6C, 0x6F, 0x20, 0x77, 0x6F, 0x72, 0x6C, 0x64, 0x08, 0x00,
0x04, 0x6E, 0x61, 0x6D, 0x65, 0x00, 0x09, 0x42, 0x61, 0x6E, 0x61, 0x6E, 0x72, 0x61, 0x6D, 0x61,
0x00];
0x0A, 0x00, 0x0B, 0x68, 0x65, 0x6C, 0x6C, 0x6F, 0x20, 0x77, 0x6F, 0x72, 0x6C, 0x64, 0x08,
0x00, 0x04, 0x6E, 0x61, 0x6D, 0x65, 0x00, 0x09, 0x42, 0x61, 0x6E, 0x61, 0x6E, 0x72, 0x61,
0x6D, 0x61, 0x00,
];
read_test(data.to_vec());
}
fn big_read_test() {
let data: [u8; 0x608] = [
0x0A, 0x00, 0x05, 0x4C, 0x65, 0x76, 0x65, 0x6C, 0x04, 0x00, 0x08, 0x6C, 0x6F, 0x6E, 0x67, 0x54,
0x65, 0x73, 0x74, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x02, 0x00, 0x09, 0x73, 0x68,
0x6F, 0x72, 0x74, 0x54, 0x65, 0x73, 0x74, 0x7F, 0xFF, 0x08, 0x00, 0x0A, 0x73, 0x74, 0x72, 0x69,
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0x10, 0x3A, 0x0A, 0x48, 0x2C, 0x1A, 0x12, 0x14, 0x20, 0x36, 0x56, 0x1C, 0x50, 0x2A, 0x0E,
0x60, 0x58, 0x5A, 0x02, 0x18, 0x38, 0x62, 0x32, 0x0C, 0x54, 0x42, 0x3A, 0x3C, 0x48, 0x5E,
0x1A, 0x44, 0x14, 0x52, 0x36, 0x24, 0x1C, 0x1E, 0x2A, 0x40, 0x60, 0x26, 0x5A, 0x34, 0x18,
0x06, 0x62, 0x00, 0x0C, 0x22, 0x42, 0x08, 0x3C, 0x16, 0x5E, 0x4C, 0x44, 0x46, 0x52, 0x04,
0x24, 0x4E, 0x1E, 0x5C, 0x40, 0x2E, 0x26, 0x28, 0x34, 0x4A, 0x06, 0x30, 0x00, 0x3E, 0x22,
0x10, 0x08, 0x0A, 0x16, 0x2C, 0x4C, 0x12, 0x46, 0x20, 0x04, 0x56, 0x4E, 0x50, 0x5C, 0x0E,
0x2E, 0x58, 0x28, 0x02, 0x4A, 0x38, 0x30, 0x32, 0x3E, 0x54, 0x10, 0x3A, 0x0A, 0x48, 0x2C,
0x1A, 0x12, 0x14, 0x20, 0x36, 0x56, 0x1C, 0x50, 0x2A, 0x0E, 0x60, 0x58, 0x5A, 0x02, 0x18,
0x38, 0x62, 0x32, 0x0C, 0x54, 0x42, 0x3A, 0x3C, 0x48, 0x5E, 0x1A, 0x44, 0x14, 0x52, 0x36,
0x24, 0x1C, 0x1E, 0x2A, 0x40, 0x60, 0x26, 0x5A, 0x34, 0x18, 0x06, 0x62, 0x00, 0x0C, 0x22,
0x42, 0x08, 0x3C, 0x16, 0x5E, 0x4C, 0x44, 0x46, 0x52, 0x04, 0x24, 0x4E, 0x1E, 0x5C, 0x40,
0x2E, 0x26, 0x28, 0x34, 0x4A, 0x06, 0x30, 0x06, 0x00, 0x0A, 0x64, 0x6F, 0x75, 0x62, 0x6C,
0x65, 0x54, 0x65, 0x73, 0x74, 0x3F, 0xDF, 0x8F, 0x6B, 0xBB, 0xFF, 0x6A, 0x5E, 0x00,
];
read_test(data.to_vec());
}
@ -153,14 +161,39 @@ fn read_test(data: Vec<u8>) {
#[cfg(feature = "debug")]
println!("data: {:?}", data);
let cursor: Reader = std::io::Cursor::new(data.as_slice());
std::thread::sleep(std::time::Duration::from_secs(2));
let start_time = std::time::Instant::now();
let nbt_data = data::NbtItem::try_from(cursor).unwrap();
let end_time = std::time::Instant::now();
println!("===local nbt===");
println!("time: {:?}", end_time - start_time);
println!("speed: {:?} (bytes/sec)", len as f64 / (end_time - start_time).as_secs_f64());
println!("{:?} (kb/sec)", len as f64 / (end_time - start_time).as_secs_f64() / 1024.0);
println!("{:?} (mb/sec)", len as f64 / (end_time - start_time).as_secs_f64() / 1024.0 / 1024.0);
println!(
"{:?} (mb/sec)",
len as f64 / (end_time - start_time).as_secs_f64() / 1024.0 / 1024.0
);
#[cfg(feature = "core_debug")]
println!("nbt_data: {:#?}", nbt_data);
std::thread::sleep(std::time::Duration::from_secs(2));
let start_time = std::time::Instant::now();
let nbt_data: fastnbt::Value = fastnbt::from_bytes(data.as_slice()).unwrap();
let end_time = std::time::Instant::now();
println!("===fastnbt===");
println!("time: {:?}", end_time - start_time);
println!("speed: {:?} (bytes/sec)", len as f64 / (end_time - start_time).as_secs_f64());
println!("{:?} (kb/sec)", len as f64 / (end_time - start_time).as_secs_f64() / 1024.0);
println!(
"{:?} (mb/sec)",
len as f64 / (end_time - start_time).as_secs_f64() / 1024.0 / 1024.0
);
#[cfg(feature = "core_debug")]
println!("nbt_data: {:#?}", nbt_data);
}

30
src/read.rs
View File

@ -19,14 +19,14 @@ pub mod read_data {
/// 直接读取长度和值 不带名称
/// 反正名字都在外面读过
#[inline]
pub fn from_bool_array(value: &mut Reader) -> Vec<bool> {
pub fn from_i8_array(value: &mut Reader) -> Vec<i8> {
// 读取长度
let mut buff = [0_u8; 4];
_ = value.read(&mut buff).unwrap();
let len = NbtLength::from_be_bytes(buff);
let mut vec = Vec::with_capacity(len as usize);
for _ in 0..len {
vec.push(NbtValue::from_bool(value).as_bool().unwrap());
vec.push(NbtValue::from_i8(value).as_i8().unwrap());
}
vec
}
@ -77,7 +77,7 @@ pub mod read_data {
}
[0x01] => {
for _ in 0..len {
vec.push(NbtItem::Value(NbtValue::from_bool(value)));
vec.push(NbtItem::Value(NbtValue::from_i8(value)));
}
}
[0x02] => {
@ -108,7 +108,7 @@ pub mod read_data {
[0x07] => {
// ByteArray
for _ in 0..len {
vec.push(NbtItem::from(from_bool_array(value)));
vec.push(NbtItem::from(from_i8_array(value)));
}
}
[0x08] => {
@ -181,13 +181,13 @@ pub mod read_data {
println!("compound type tag {:?} with name: {:?}", type_tag, name);
// 读取 value
let nbt_value: NbtItem = match type_tag {
[0x01] => NbtItem::Value(NbtValue::from_bool(value)),
[0x01] => NbtItem::Value(NbtValue::from_i8(value)),
[0x02] => NbtItem::Value(NbtValue::from_i16(value)),
[0x03] => NbtItem::Value(NbtValue::from_i32(value)),
[0x04] => NbtItem::Value(NbtValue::from_i64(value)),
[0x05] => NbtItem::Value(NbtValue::from_f32(value)),
[0x06] => NbtItem::Value(NbtValue::from_f64(value)),
[0x07] => NbtItem::from(from_bool_array(value)),
[0x07] => NbtItem::from(from_i8_array(value)),
[0x08] => NbtItem::Value(NbtValue::from_string(value)),
[0x09] => NbtItem::from(from_nbt_list(value)),
[0x0A] => {
@ -195,11 +195,11 @@ pub mod read_data {
NbtList::Compound(mut get_name, item) => {
get_name = name.clone();
NbtList::Compound(get_name, item)
},
_ => panic!("WTF")
}
_ => panic!("WTF"),
};
NbtItem::from(item)
},
}
[0x0B] => NbtItem::from(from_i32_array(value)),
[0x0C] => NbtItem::from(from_i64_array(value)),
_ => {
@ -223,7 +223,7 @@ pub mod read_data {
}
}
use read_data::{from_bool_array, from_compound, from_i32_array, from_i64_array, from_nbt_list};
use read_data::{from_compound, from_i32_array, from_i64_array, from_i8_array, from_nbt_list};
pub enum NbtStatus {
/// 读取到了 End
@ -253,13 +253,13 @@ impl TryFrom<Cursor<&[u8]>> for NbtItem {
let name = NbtValue::from_string(&mut value).as_string().unwrap();
let type_code: NbtStatus = match buff {
[0x00] => NbtStatus::End,
[0x01] => NbtStatus::Going(NbtItem::Value(NbtValue::from_bool(&mut value))),
[0x01] => NbtStatus::Going(NbtItem::Value(NbtValue::from_i8(&mut value))),
[0x02] => NbtStatus::Going(NbtItem::Value(NbtValue::from_i16(&mut value))),
[0x03] => NbtStatus::Going(NbtItem::Value(NbtValue::from_i32(&mut value))),
[0x04] => NbtStatus::Going(NbtItem::Value(NbtValue::from_i64(&mut value))),
[0x05] => NbtStatus::Going(NbtItem::Value(NbtValue::from_f32(&mut value))),
[0x06] => NbtStatus::Going(NbtItem::Value(NbtValue::from_f64(&mut value))),
[0x07] => NbtStatus::Going(NbtItem::from(from_bool_array(&mut value))),
[0x07] => NbtStatus::Going(NbtItem::from(from_i8_array(&mut value))),
[0x08] => NbtStatus::Going(NbtItem::Value(NbtValue::from_string(&mut value))),
[0x09] => NbtStatus::Going(NbtItem::from(from_nbt_list(&mut value))),
[0x0A] => NbtStatus::Going(NbtItem::from(from_compound(&mut value))),
@ -275,11 +275,7 @@ impl TryFrom<Cursor<&[u8]>> for NbtItem {
)),
};
#[cfg(feature = "core_debug")]
println!(
"==type_code: {:?} reader pos: {:?}",
buff,
value.position()
);
println!("==type_code: {:?} reader pos: {:?}", buff, value.position());
match type_code {
NbtStatus::End => {
break;