somewhat working

rust-runner/src/main.rs

@@ -53,7 +53,29 @@ fn main() {
             closure: Box::new(runtime.allocator()),
         }
     );
+    user_functions.insert("_storage_size".to_owned(), 
+        interpreter::UserFunction {
+            params: vec![elements::ValueType::I32],
+            result: Some(elements::ValueType::I32),
+            closure: Box::new(runtime.storage().sizer()),
+        }
+    );
+    user_functions.insert("_storage_read".to_owned(), 
+        interpreter::UserFunction {
+            params: vec![elements::ValueType::I32],
+            result: Some(elements::ValueType::I32),
+            closure: Box::new(runtime.storage().reader()),
+        }
+    );
+    user_functions.insert("_storage_write".to_owned(), 
+        interpreter::UserFunction {
+            params: vec![elements::ValueType::I32],
+            result: Some(elements::ValueType::I32),
+            closure: Box::new(runtime.storage().writer()),
+        }
+    );
     runtime::user_trap(&mut user_functions, "_emscripten_memcpy_big");
+    runtime::user_noop(&mut user_functions, "_free");
 
     let program = parity_wasm::interpreter::ProgramInstance::with_functions(user_functions)
         .expect("Program instance to be created");