feat: compile with stable rust

Signed-off-by: YdrMaster <[email protected]>

CHANGELOG.md

@@ -1,5 +1,15 @@
 # 更新日志 Change Log
 
+## v0.1.3
+
+- 功能
+  - 移除不稳定特性，支持 stable 编译
+
+---
+
+- feature
+  - removes unstable features and allows to compile with stable rust
+
 ## v0.1.2
 
 - 功能

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "dtb-walker"
 description = "A simple package for DTB depth-first walking."
-version = "0.1.2"
+version = "0.1.3"
 edition = "2021"
 authors = ["YdrMaster <[email protected]>"]
 repository = "https://github.com/YdrMaster/dtb-walker.git"

README.md

@@ -15,9 +15,10 @@ cargo run --release --example qemu-virt
 
 特性：
 
-- [x] 可选是否检查首部正确性；
+- [x] stable rust
 - [x] `no_std`；
 - [x] 不需要 `alloc`；
+- [x] 可选是否检查首部正确性；
 - [x] 提前终止遍历；
 - [x] 低开销跳过节点；
 - [ ] 内置标准属性解析；

docs/README_EN.md

@@ -15,9 +15,10 @@ Following the [devicetree-specification-v0.4-rc1](https://github.com/devicetree-
 
 Features:
 
-- [x] optional header verifying;
+- [x] stable rust
 - [x] `no_std`;
 - [x] without `alloc`;
+- [x] optional header verifying;
 - [x] terminate walking at any time;
 - [x] step over nodes with low overhead;
 - [ ] built-in standard property parsing;

src/header.rs

@@ -157,5 +157,9 @@ fn misaligned(addr: u32) -> u32 {
 
 #[inline]
 fn check(filter: impl Fn(&HeaderError) -> bool, err: HeaderError) -> Result<(), HeaderError> {
-    filter(&err).then_some(()).ok_or(err)
+    if filter(&err) {
+        Ok(())
+    } else {
+        Err(err)
+    }
 }

src/lib.rs

@@ -1,5 +1,4 @@
 #![no_std]
-#![feature(slice_internals)]
 #![deny(warnings)] // cancel this line during developing
 
 mod header;

src/property/str.rs

@@ -71,7 +71,7 @@ impl<'a> Iterator for StrList<'a> {
         }
         let (head, tail) = self
             .0
-            .split_at(slice::memchr::memchr(b'\0', self.0).unwrap());
+            .split_at(self.0.iter().position(|c| *c == b'\0').unwrap());
         self.0 = &tail[1..];
         Some(Str(head))
     }

src/walker.rs

@@ -12,7 +12,7 @@ impl Walker<'_> {
     fn prop_name(&self, nameoff: Blk) -> &[u8] {
         let nameoff = nameoff.into_u32() as usize;
         let name = &self.strings[nameoff..];
-        &name[..slice::memchr::memchr(b'\0', name).unwrap()]
+        &name[..name.iter().position(|c| *c == b'\0').unwrap()]
     }
 
     /// 深度优先遍历。如果返回 `false`，取消所有后续的遍历。