Update c_types `IOError` type to support `no-std` via `core2`

diff --git a/lightning-c-bindings/src/c_types/mod.rs b/lightning-c-bindings/src/c_types/mod.rs
index 471b067ac94fab9d19e1e6f034fdf49d1eea8cc2..f706b952456bce87448e707edc32526cdddb7ade 100644 (file)
--- a/lightning-c-bindings/src/c_types/mod.rs
+++ b/lightning-c-bindings/src/c_types/mod.rs
@@ -288,51 +288,50 @@ pub enum IOError {
        Other,
        UnexpectedEof,
 }
-#[cfg(feature = "std")]
 impl IOError {
-       pub(crate) fn from_rust(err: std::io::Error) -> Self {
+       pub(crate) fn from_rust(err: io::Error) -> Self {
                match err.kind() {
-                       std::io::ErrorKind::NotFound => IOError::NotFound,
-                       std::io::ErrorKind::PermissionDenied => IOError::PermissionDenied,
-                       std::io::ErrorKind::ConnectionRefused => IOError::ConnectionRefused,
-                       std::io::ErrorKind::ConnectionReset => IOError::ConnectionReset,
-                       std::io::ErrorKind::ConnectionAborted => IOError::ConnectionAborted,
-                       std::io::ErrorKind::NotConnected => IOError::NotConnected,
-                       std::io::ErrorKind::AddrInUse => IOError::AddrInUse,
-                       std::io::ErrorKind::AddrNotAvailable => IOError::AddrNotAvailable,
-                       std::io::ErrorKind::BrokenPipe => IOError::BrokenPipe,
-                       std::io::ErrorKind::AlreadyExists => IOError::AlreadyExists,
-                       std::io::ErrorKind::WouldBlock => IOError::WouldBlock,
-                       std::io::ErrorKind::InvalidInput => IOError::InvalidInput,
-                       std::io::ErrorKind::InvalidData => IOError::InvalidData,
-                       std::io::ErrorKind::TimedOut => IOError::TimedOut,
-                       std::io::ErrorKind::WriteZero => IOError::WriteZero,
-                       std::io::ErrorKind::Interrupted => IOError::Interrupted,
-                       std::io::ErrorKind::Other => IOError::Other,
-                       std::io::ErrorKind::UnexpectedEof => IOError::UnexpectedEof,
+                       io::ErrorKind::NotFound => IOError::NotFound,
+                       io::ErrorKind::PermissionDenied => IOError::PermissionDenied,
+                       io::ErrorKind::ConnectionRefused => IOError::ConnectionRefused,
+                       io::ErrorKind::ConnectionReset => IOError::ConnectionReset,
+                       io::ErrorKind::ConnectionAborted => IOError::ConnectionAborted,
+                       io::ErrorKind::NotConnected => IOError::NotConnected,
+                       io::ErrorKind::AddrInUse => IOError::AddrInUse,
+                       io::ErrorKind::AddrNotAvailable => IOError::AddrNotAvailable,
+                       io::ErrorKind::BrokenPipe => IOError::BrokenPipe,
+                       io::ErrorKind::AlreadyExists => IOError::AlreadyExists,
+                       io::ErrorKind::WouldBlock => IOError::WouldBlock,
+                       io::ErrorKind::InvalidInput => IOError::InvalidInput,
+                       io::ErrorKind::InvalidData => IOError::InvalidData,
+                       io::ErrorKind::TimedOut => IOError::TimedOut,
+                       io::ErrorKind::WriteZero => IOError::WriteZero,
+                       io::ErrorKind::Interrupted => IOError::Interrupted,
+                       io::ErrorKind::Other => IOError::Other,
+                       io::ErrorKind::UnexpectedEof => IOError::UnexpectedEof,
                        _ => IOError::Other,
                }
        }
-       pub(crate) fn to_rust(&self) -> std::io::Error {
-               std::io::Error::new(match self {
-                       IOError::NotFound => std::io::ErrorKind::NotFound,
-                       IOError::PermissionDenied => std::io::ErrorKind::PermissionDenied,
-                       IOError::ConnectionRefused => std::io::ErrorKind::ConnectionRefused,
-                       IOError::ConnectionReset => std::io::ErrorKind::ConnectionReset,
-                       IOError::ConnectionAborted => std::io::ErrorKind::ConnectionAborted,
-                       IOError::NotConnected => std::io::ErrorKind::NotConnected,
-                       IOError::AddrInUse => std::io::ErrorKind::AddrInUse,
-                       IOError::AddrNotAvailable => std::io::ErrorKind::AddrNotAvailable,
-                       IOError::BrokenPipe => std::io::ErrorKind::BrokenPipe,
-                       IOError::AlreadyExists => std::io::ErrorKind::AlreadyExists,
-                       IOError::WouldBlock => std::io::ErrorKind::WouldBlock,
-                       IOError::InvalidInput => std::io::ErrorKind::InvalidInput,
-                       IOError::InvalidData => std::io::ErrorKind::InvalidData,
-                       IOError::TimedOut => std::io::ErrorKind::TimedOut,
-                       IOError::WriteZero => std::io::ErrorKind::WriteZero,
-                       IOError::Interrupted => std::io::ErrorKind::Interrupted,
-                       IOError::Other => std::io::ErrorKind::Other,
-                       IOError::UnexpectedEof => std::io::ErrorKind::UnexpectedEof,
+       pub(crate) fn to_rust(&self) -> io::Error {
+               io::Error::new(match self {
+                       IOError::NotFound => io::ErrorKind::NotFound,
+                       IOError::PermissionDenied => io::ErrorKind::PermissionDenied,
+                       IOError::ConnectionRefused => io::ErrorKind::ConnectionRefused,
+                       IOError::ConnectionReset => io::ErrorKind::ConnectionReset,
+                       IOError::ConnectionAborted => io::ErrorKind::ConnectionAborted,
+                       IOError::NotConnected => io::ErrorKind::NotConnected,
+                       IOError::AddrInUse => io::ErrorKind::AddrInUse,
+                       IOError::AddrNotAvailable => io::ErrorKind::AddrNotAvailable,
+                       IOError::BrokenPipe => io::ErrorKind::BrokenPipe,
+                       IOError::AlreadyExists => io::ErrorKind::AlreadyExists,
+                       IOError::WouldBlock => io::ErrorKind::WouldBlock,
+                       IOError::InvalidInput => io::ErrorKind::InvalidInput,
+                       IOError::InvalidData => io::ErrorKind::InvalidData,
+                       IOError::TimedOut => io::ErrorKind::TimedOut,
+                       IOError::WriteZero => io::ErrorKind::WriteZero,
+                       IOError::Interrupted => io::ErrorKind::Interrupted,
+                       IOError::Other => io::ErrorKind::Other,
+                       IOError::UnexpectedEof => io::ErrorKind::UnexpectedEof,
                }, "")
        }
 }