Use io::const_error! when possible over io::Error::new

8 files changed, 9 insertions, 10 deletions

diff --git a/library/std/src/sys/net/connection/xous/tcplistener.rs b/library/std/src/sys/net/connection/xous/tcplistener.rs
index 640a02a64f5..ab15ddfeb50 100644
--- a/library/std/src/sys/net/connection/xous/tcplistener.rs
+++ b/library/std/src/sys/net/connection/xous/tcplistener.rs
@@ -182,7 +182,7 @@ impl TcpListener {
 
     pub fn set_ttl(&self, ttl: u32) -> io::Result<()> {
         if ttl > 255 {
-            return Err(io::Error::new(io::ErrorKind::InvalidInput, "TTL must be less than 256"));
+            return Err(io::const_error!(io::ErrorKind::InvalidInput, "TTL must be less than 256"));
         }
         crate::os::xous::ffi::blocking_scalar(
             services::net_server(),
diff --git a/library/std/src/sys/net/connection/xous/tcpstream.rs b/library/std/src/sys/net/connection/xous/tcpstream.rs
index 572dd6b3b63..3f4cc97c2a9 100644
--- a/library/std/src/sys/net/connection/xous/tcpstream.rs
+++ b/library/std/src/sys/net/connection/xous/tcpstream.rs
@@ -370,7 +370,7 @@ impl TcpStream {
 
     pub fn set_ttl(&self, ttl: u32) -> io::Result<()> {
         if ttl > 255 {
-            return Err(io::Error::new(io::ErrorKind::InvalidInput, "TTL must be less than 256"));
+            return Err(io::const_error!(io::ErrorKind::InvalidInput, "TTL must be less than 256"));
         }
         crate::os::xous::ffi::blocking_scalar(
             services::net_server(),
diff --git a/library/std/src/sys/net/connection/xous/udp.rs b/library/std/src/sys/net/connection/xous/udp.rs
index 1b7ecac6d3a..887a3e97c86 100644
--- a/library/std/src/sys/net/connection/xous/udp.rs
+++ b/library/std/src/sys/net/connection/xous/udp.rs
@@ -360,7 +360,7 @@ impl UdpSocket {
 
     pub fn set_ttl(&self, ttl: u32) -> io::Result<()> {
         if ttl > 255 {
-            return Err(io::Error::new(io::ErrorKind::InvalidInput, "TTL must be less than 256"));
+            return Err(io::const_error!(io::ErrorKind::InvalidInput, "TTL must be less than 256"));
         }
         crate::os::xous::ffi::blocking_scalar(
             services::net_server(),
diff --git a/library/std/src/sys/pal/teeos/mod.rs b/library/std/src/sys/pal/teeos/mod.rs
index f850fefc8f2..3632524157d 100644
--- a/library/std/src/sys/pal/teeos/mod.rs
+++ b/library/std/src/sys/pal/teeos/mod.rs
@@ -148,5 +148,5 @@ pub fn unsupported<T>() -> std_io::Result<T> {
 }
 
 pub fn unsupported_err() -> std_io::Error {
-    std_io::Error::new(std_io::ErrorKind::Unsupported, "operation not supported on this platform")
+    std_io::Error::UNSUPPORTED_PLATFORM
 }
diff --git a/library/std/src/sys/pal/teeos/os.rs b/library/std/src/sys/pal/teeos/os.rs
index 82cade771b5..bf6945811ab 100644
--- a/library/std/src/sys/pal/teeos/os.rs
+++ b/library/std/src/sys/pal/teeos/os.rs
@@ -107,11 +107,11 @@ pub fn getenv(_: &OsStr) -> Option<OsString> {
 }
 
 pub unsafe fn setenv(_: &OsStr, _: &OsStr) -> io::Result<()> {
-    Err(io::Error::new(io::ErrorKind::Unsupported, "cannot set env vars on this platform"))
+    Err(io::const_error!(io::ErrorKind::Unsupported, "cannot set env vars on this platform"))
 }
 
 pub unsafe fn unsetenv(_: &OsStr) -> io::Result<()> {
-    Err(io::Error::new(io::ErrorKind::Unsupported, "cannot unset env vars on this platform"))
+    Err(io::const_error!(io::ErrorKind::Unsupported, "cannot unset env vars on this platform"))
 }
 
 pub fn temp_dir() -> PathBuf {
diff --git a/library/std/src/sys/pal/uefi/stdio.rs b/library/std/src/sys/pal/uefi/stdio.rs
index 703e8ba8e57..d049d19bc83 100644
--- a/library/std/src/sys/pal/uefi/stdio.rs
+++ b/library/std/src/sys/pal/uefi/stdio.rs
@@ -71,7 +71,7 @@ impl io::Read for Stdin {
             };
 
         if ch.len() > 1 {
-            return Err(io::Error::new(io::ErrorKind::InvalidData, "invalid utf-16 sequence"));
+            return Err(io::const_error!(io::ErrorKind::InvalidData, "invalid utf-16 sequence"));
         }
 
         match ch.pop().unwrap() {
diff --git a/library/std/src/sys/pal/unix/process/process_unix.rs b/library/std/src/sys/pal/unix/process/process_unix.rs
index 2bff192a5bd..716dd11e942 100644
--- a/library/std/src/sys/pal/unix/process/process_unix.rs
+++ b/library/std/src/sys/pal/unix/process/process_unix.rs
@@ -1228,7 +1228,7 @@ mod linux_child_ext {
                 .as_ref()
                 // SAFETY: The os type is a transparent wrapper, therefore we can transmute references
                 .map(|fd| unsafe { mem::transmute::<&imp::PidFd, &os::PidFd>(fd) })
-                .ok_or_else(|| io::Error::new(ErrorKind::Uncategorized, "No pidfd was created."))
+                .ok_or_else(|| io::const_error!(ErrorKind::Uncategorized, "No pidfd was created."))
         }
 
         fn into_pidfd(mut self) -> Result<os::PidFd, Self> {
diff --git a/library/std/src/sys/pal/wasi/fs.rs b/library/std/src/sys/pal/wasi/fs.rs
index 7705e7f6b88..8d0ef95a286 100644
--- a/library/std/src/sys/pal/wasi/fs.rs
+++ b/library/std/src/sys/pal/wasi/fs.rs
@@ -773,8 +773,7 @@ fn open_parent(p: &Path) -> io::Result<(ManuallyDrop<WasiFd>, PathBuf)> {
                     }
                     let msg = format!(
                         "failed to find a pre-opened file descriptor \
-                     through which {:?} could be opened",
-                        p
+                        through which {p:?} could be opened",
                     );
                     return Err(io::Error::new(io::ErrorKind::Uncategorized, msg));
                 }