Remove exit code restriction on Windows

crates/wasi/src/error.rs

@@ -9,20 +9,6 @@ use std::marker;
 #[derive(Debug)]
 pub struct I32Exit(pub i32);
 
-impl I32Exit {
-    /// Accessor for an exit code appropriate for calling `std::process::exit` with,
-    /// when interpreting this `I32Exit` as an exit for the parent process.
-    ///
-    /// This method masks off exit codes which are illegal on Windows.
-    pub fn process_exit_code(&self) -> i32 {
-        if cfg!(windows) && self.0 >= 3 {
-            1
-        } else {
-            self.0
-        }
-    }
-}
-
 impl fmt::Display for I32Exit {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         write!(f, "Exited with i32 exit status {}", self.0)

src/commands/run.rs

@@ -230,11 +230,8 @@ impl RunCommand {
                 if store.data().preview1_ctx.is_some() {
                     return Err(wasi_common::maybe_exit_on_error(e));
                 } else if store.data().preview2_ctx.is_some() {
-                    if let Some(exit) = e
-                        .downcast_ref::<wasmtime_wasi::I32Exit>()
-                        .map(|c| c.process_exit_code())
-                    {
-                        std::process::exit(exit);
+                    if let Some(exit) = e.downcast_ref::<wasmtime_wasi::I32Exit>() {
+                        std::process::exit(exit.0);
                     }
                     if e.is::<wasmtime::Trap>() {
                         eprintln!("Error: {e:?}");