[Fix] Avoid panic due to new types introduced by GC

Signed-off-by: csh <[email protected]>

crates/wasmedge-sys/src/types.rs

@@ -381,16 +381,18 @@ impl From<ffi::WasmEdge_ValType> for ValType {
  } else if ffi::WasmEdge_ValTypeIsExternRef(value) {
  ValType::ExternRef
  } else {
- panic!(
+ log::warn!(
  "capi unsupport WasmEdge_RefType `{:x}`",
  u64::from_be_bytes(value.Data)
- )
+ );
+ ValType::UnsupportedRef
  }
  } else {
- panic!(
+ log::warn!(
  "unknown WasmEdge_ValType `{:x}`",
  u64::from_be_bytes(value.Data)
- )
+ );
+ ValType::UnsupportedRef
  }
  }
  }
@@ -406,6 +408,8 @@ impl From<ValType> for ffi::WasmEdge_ValType {
  ValType::V128 => ffi::WasmEdge_ValTypeGenV128(),
  ValType::FuncRef => ffi::WasmEdge_ValTypeGenFuncRef(),
  ValType::ExternRef => ffi::WasmEdge_ValTypeGenExternRef(),
+ // C API is temporarily unsupported.
+ ValType::UnsupportedRef => ffi::WasmEdge_ValTypeGenExternRef(),
  }
  }
  }

crates/wasmedge-types/src/lib.rs

@@ -64,6 +64,8 @@ pub enum ValType {
  FuncRef,
  /// A reference to object.
  ExternRef,
+ /// A reference that unsupported by c-api.
+ UnsupportedRef,
 }
 
 /// Defines the mutability property of WasmEdge Global variables.

src/types.rs

@@ -67,6 +67,10 @@ impl From<WasmValue> for Val {
  Val::ExternRef(Some(ExternRef { inner: value }))
  }
  }
+ wasmedge_types::ValType::UnsupportedRef => {
+ // Waiting for more GC-related C APIs.
+ Val::ExternRef(None)
+ }
  }
  }
 }