Rename Host::check_same_env to Host::is_same

soroban-env-host/src/host.rs

@@ -744,17 +744,10 @@ impl Host {
         self.create_contract_internal(Some(deployer), args, constructor_args_vec)
     }
 
-    pub fn check_same_env(&self, other: &Self) -> Result<(), HostError> {
-        if Rc::ptr_eq(&self.0, &other.0) {
-            Ok(())
-        } else {
-            Err(self.err(
-                ScErrorType::Context,
-                ScErrorCode::InternalError,
-                "check_same_env on different Hosts",
-                &[],
-            ))
-        }
+    /// Returns true if the Host contains the same instance of HostImpl and therefore changes to
+    /// one will be observable via the other. If true, both are essentially the same Host.
+    pub fn is_same(&self, other: &Self) -> bool {
+        Rc::ptr_eq(&self.0, &other.0)
     }
 }
 

soroban-env-host/src/test/host.rs

@@ -7,6 +7,17 @@ use crate::{
     Env, Host, HostError,
 };
 
+#[test]
+fn is_same_host_impl() {
+    let host1 = Host::default();
+    let host1_clone = host1.clone();
+    let host2 = Host::default();
+
+    assert!(host1.is_same(&host1));
+    assert!(host1.is_same(&host1_clone));
+    assert!(!host1.is_same(&host2));
+}
+
 #[test]
 fn invalid_object_handles() -> Result<(), HostError> {
     let create_host = || -> Result<Host, HostError> {