Proper drop fn

ethereum · Mar 13, 2019 · ebe4596 · ebe4596
1 parent a88d2ee
commit ebe4596
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/bindings/rust/evmc-vm/src/lib.rs b/bindings/rust/evmc-vm/src/lib.rs
@@ -12,6 +12,10 @@ pub use evmc_sys as ffi;
 pub struct EvmcResult(Box<ffi::evmc_result>);
 
 impl EvmcResult {
+    pub fn from_raw(*const ffi::evmc_result) -> Self {
+        EvmcResult(Box::from_raw(evmc_result))
+    }
+
     pub fn release_result(self) {
         if let Some(release_fn) = self.0.release {
             unsafe {
@@ -34,3 +38,10 @@ impl EvmcResult {
         self.0.gas_left = gas;
     }
 }
+
+#[no_mangle]
+pub extern "C" fn release_result(result: *const ffi::evmc_result) {
+    unsafe {
+        let to_drop = Box::from_raw(result);
+    }
+}