make tokio features optional

2 files changed, 6 insertions, 0 deletions

diff --git a/src/error.rs b/src/error.rs
index 975889b..c106d02 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -17,10 +17,12 @@ pub enum Error {
     FrameTooLong { input: u64 },
 
     /// failed to read from file
+    #[cfg(feature = "async")]
     #[snafu(display("failed to read from file: {}", source))]
     ReadFile { source: tokio::io::Error },
 
     /// failed to write to file
+    #[cfg(feature = "async")]
     #[snafu(display("failed to write to file: {}", source))]
     WriteFile { source: tokio::io::Error },
 }
diff --git a/src/lib.rs b/src/lib.rs
index 5ae78fa..c08be3a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -20,7 +20,11 @@ mod frame;
 pub use frame::Frame;
 mod parser;
 pub use parser::Parser;
+#[cfg(feature = "async")]
 mod reader;
+#[cfg(feature = "async")]
 pub use reader::Reader;
+#[cfg(feature = "async")]
 mod writer;
+#[cfg(feature = "async")]
 pub use writer::Writer;