feat: update wasmtime

__wasm/wasmtime/examples/example2.rs

@@ -13,7 +13,6 @@ use wasmtime::*;
 //     alert(&format!("Hello, {}!", name));
 // }
 fn main() -> Result<()> {
-    // Modules can be compiled through either the text or binary format
     let engine = Engine::default();
     let wasm = std::fs::read("./examples/hello_wasm_bg.wasm").unwrap();
     let module = Module::new(&engine, wasm)?;
@@ -27,13 +26,10 @@ fn main() -> Result<()> {
             let s = String::from_utf8_lossy(&buffer).to_string();
             println!("[alert]: {}", s);
         } else {
-            panic!("Should happen, got non memory");
+            panic!("Should happen, got not memory");
         }
     })?;
 
-    // All wasm objects operate within the context of a "store". Each
-    // `Store` has a type parameter to store host-specific data, which in
-    // this case we're using `4` for.
     let mut store = Store::new(&engine, 0);
     let instance = linker.instantiate(&mut store, &module)?;
 
@@ -41,16 +37,12 @@ fn main() -> Result<()> {
         .ok_or_else(|| anyhow::format_err!("failed to find `memory` export"))?;
 
     let msg = "hatter".as_bytes();
-
     let malloc = instance.get_typed_func::<i32, i32, _>(&mut store, "__wbindgen_malloc")?;
-    let p = malloc.call(&mut store, msg.len() as i32)?;
+    let msg_ptr = malloc.call(&mut store, msg.len() as i32)?;
+    memory.write(&mut store, msg_ptr as usize, msg)?;
 
-    memory.write(&mut store, p as usize, msg)?;
-
-    let hello = instance.get_typed_func::<(i32, i32), (), _>(&mut store, "greet")?;
-
-    // And finally we can call the wasm!
-    hello.call(&mut store, (p, msg.len() as i32))?;
+    let greet_fn = instance.get_typed_func::<(i32, i32), (), _>(&mut store, "greet")?;
+    greet_fn.call(&mut store, (p, msg.len() as i32))?;
 
     Ok(())
 }