Removed a use of GetBytes in Instance.TryGetExtern and using a st…

…ack buffer instead. (#287)
bytecodealliance · Dec 1, 2023 · e03d3e1 · e03d3e1
1 parent 53133fa
commit e03d3e1
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/src/Instance.cs b/src/Instance.cs
@@ -581,10 +581,11 @@ public Instance(Store store, Module module, params object[] imports)
 
         private bool TryGetExtern(StoreContext context, string name, out Extern ext)
         {
+            using var nameBytes = name.ToUTF8(stackalloc byte[Math.Min(64, name.Length * 2)]);
+
             unsafe
             {
-                var nameBytes = Encoding.UTF8.GetBytes(name);
-                fixed (byte* ptr = nameBytes)
+                fixed (byte* ptr = nameBytes.Span)
                 {
                     return Native.wasmtime_instance_export_get(context.handle, this.instance, ptr, (UIntPtr)nameBytes.Length, out ext);
                 }