From ef8dd81143f3c84c34242b19116c69c00093c2dc Mon Sep 17 00:00:00 2001
From: DoumanAsh <douman@gmx.se>
Date: Fri, 8 Nov 2024 09:47:46 +0900
Subject: [PATCH] Bump minimal Rust version to 1.64

---
 .github/workflows/rust.yml | 25 +++++++++++++++++++++++++
 README.md                  |  2 +-
 src/lib.rs                 | 19 +------------------
 3 files changed, 27 insertions(+), 19 deletions(-)

diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 2627a8c..d454672 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -1,5 +1,8 @@
 name: Rust
 
+env:
+  min_rust_version: "1.64.0"
+
 on:
   push:
     paths-ignore:
@@ -16,6 +19,28 @@ on:
       - '.gitignore'
 
 jobs:
+  min-rust-check:
+    if: github.event.pull_request.draft == false
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: Install Rust Unix
+      run: |
+        if rustup --version >/dev/null 2>&1; then
+            rustup install ${{ env.min_rust_version }}
+            rustup default ${{ env.min_rust_version }}
+        else
+            curl https://sh.rustup.rs -sSf | sh -s -- -y --profile minimal --default-toolchain ${{ env.min_rust_version }}
+            echo ::add-path::$HOME/.cargo/bin
+        fi
+    - name: Rust version
+      run: |
+        cargo --version
+        rustc --version
+    - name: Check
+      run: |
+        cargo check --features serde,ufmt-write
+
   check:
     if: github.event.pull_request.draft == false
     uses: DoumanAsh/douman-ci/.github/workflows/rust.yml@master
diff --git a/README.md b/README.md
index 64c62d7..dda8342 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ Static string buffer
 
 ## Requirements
 
-- Rust 1.59
+- Rust 1.64
 
 ## Features:
 
diff --git a/src/lib.rs b/src/lib.rs
index 9d583f6..7382a71 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -189,25 +189,8 @@ impl<const N: usize> StrBuf<N> {
     #[allow(clippy::missing_transmute_annotations)]
     ///Returns slice to already written data.
     pub const fn as_slice(&self) -> &[u8] {
-        //Layout is: (<ptr>, <usize>)
-        //
-        //Reference:
-        //https://github.com/rust-lang/rust/blob/6830052c7b87217886324129bffbe096e485d415/library/core/src/ptr/metadata.rs#L145=
-        #[repr(C)]
-        struct RawSlice {
-            ptr: *const u8,
-            size: usize,
-        }
-
-        debug_assert!(unsafe {
-            mem::transmute::<_, RawSlice>([3, 2, 1].as_slice()).size
-        } == 3, "RawSlice layout has been changed in compiler unexpectedly");
-
         unsafe {
-            mem::transmute(RawSlice {
-                ptr: self.as_ptr(),
-                size: self.len(),
-            })
+            slice::from_raw_parts(self.as_ptr(), self.len())
         }
     }