refactor: use auto-const-array to declare const array with cfg feature (#130)

* refactor: use auto-const-array to declare const array with cfg feature

* fix clippy issues

3 files changed, 24 insertions, 42 deletions

diff --git a/monoio/Cargo.toml b/monoio/Cargo.toml
index dd25ea8..a129241 100644
--- a/monoio/Cargo.toml
+++ b/monoio/Cargo.toml
@@ -14,6 +14,7 @@ version = "0.0.9"
 [dependencies]
 monoio-macros = {version = "0.0.3", path = "../monoio-macros", optional = true}
 
+auto-const-array = "0.2"
 fxhash = "0.2"
 libc = "0.2"
 pin-project-lite = "0.2"
diff --git a/monoio/src/buf/io_vec_buf.rs b/monoio/src/buf/io_vec_buf.rs
index 8e3deea..061c602 100644
--- a/monoio/src/buf/io_vec_buf.rs
+++ b/monoio/src/buf/io_vec_buf.rs
@@ -4,6 +4,7 @@
 ///
 /// # Safety
 /// See the safety note of the methods.
+#[allow(clippy::unnecessary_safety_doc)]
 pub unsafe trait IoVecBuf: Unpin + 'static {
     /// Returns a raw pointer to iovec struct.
     /// struct iovec {
@@ -145,6 +146,7 @@ impl From<VecBuf> for Vec<Vec<u8>> {
 ///
 /// # Safety
 /// See the safety note of the methods.
+#[allow(clippy::unnecessary_safety_doc)]
 pub unsafe trait IoVecBufMut: Unpin + 'static {
     #[cfg(unix)]
     /// Returns a raw mutable pointer to iovec struct.
diff --git a/monoio/src/utils/uring_detect.rs b/monoio/src/utils/uring_detect.rs
index f8ca53d..5df97bb 100644
--- a/monoio/src/utils/uring_detect.rs
+++ b/monoio/src/utils/uring_detect.rs
@@ -1,13 +1,6 @@
 //! Detect if current platform support io_uring.
 
 #[cfg(all(target_os = "linux", feature = "iouring"))]
-macro_rules! op_codes {
-    ($($op: ident),*) => {
-        [$(io_uring::opcode::$op::CODE),*]
-    };
-}
-
-#[cfg(all(target_os = "linux", feature = "iouring"))]
 macro_rules! err_to_false {
     ($e: expr) => {
         match $e {
@@ -27,42 +20,28 @@ fn detect_uring_inner() -> bool {
         }
         _ => {}
     }
-    #[cfg(not(feature = "splice"))]
-    const USED_OP: [u8; 14] = op_codes![
-        Accept,
-        AsyncCancel,
-        Close,
-        Connect,
-        Fsync,
-        OpenAt,
-        ProvideBuffers,
-        Read,
-        Readv,
-        Recv,
-        Send,
-        Timeout,
-        Write,
-        Writev
-    ];
 
-    #[cfg(feature = "splice")]
-    const USED_OP: [u8; 15] = op_codes![
-        Accept,
-        AsyncCancel,
-        Close,
-        Connect,
-        Fsync,
-        OpenAt,
-        ProvideBuffers,
-        Read,
-        Readv,
-        Recv,
-        Send,
-        Timeout,
-        Write,
-        Writev,
-        Splice
-    ];
+    use io_uring::opcode::*;
+    auto_const_array::auto_const_array! {
+        const USED_OP: [u8; _] = [
+            Accept::CODE,
+            AsyncCancel::CODE,
+            Close::CODE,
+            Connect::CODE,
+            Fsync::CODE,
+            OpenAt::CODE,
+            ProvideBuffers::CODE,
+            Read::CODE,
+            Readv::CODE,
+            Recv::CODE,
+            Send::CODE,
+            Timeout::CODE,
+            Write::CODE,
+            Writev::CODE,
+            #[cfg(feature = "splice")]
+            Splice::CODE
+        ];
+    }
 
     let uring = err_to_false!(io_uring::IoUring::new(2));
     let mut probe = io_uring::Probe::new();