chore: import upstream snapshot with attribution

2026-07-13 13:36:25 +08:00
commit 26446540fa
3151 changed files with 974126 additions and 0 deletions
@@ -0,0 +1,85 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include <gtest/gtest.h>
+#include <tvm/ffi/memory.h>
+#include <tvm/runtime/logging.h>
+
+namespace tvm {
+namespace test {
+
+using namespace tvm::runtime;
+
+class ObjBase : public ffi::Object {
+ public:
+  // dynamically allocate slow
+  static constexpr const uint32_t _type_child_slots = 1;
+  TVM_FFI_DECLARE_OBJECT_INFO("test.ObjBase", ObjBase, ffi::Object);
+};
+
+class ObjA : public ObjBase {
+ public:
+  static constexpr const uint32_t _type_child_slots = 0;
+  TVM_FFI_DECLARE_OBJECT_INFO("test.ObjA", ObjA, ObjBase);
+};
+
+class ObjB : public ObjBase {
+ public:
+  static constexpr const uint32_t _type_child_slots = 0;
+  TVM_FFI_DECLARE_OBJECT_INFO("test.ObjB", ObjB, ObjBase);
+};
+
+class ObjAA : public ObjA {
+ public:
+  TVM_FFI_DECLARE_OBJECT_INFO_FINAL("test.ObjAA", ObjAA, ObjA);
+};
+
+}  // namespace test
+}  // namespace tvm
+
+TEST(ObjectHierachy, Basic) {
+  using namespace tvm;
+  using namespace tvm::runtime;
+  using namespace tvm::test;
+  using namespace tvm::ffi;
+
+  ffi::ObjectRef refA(ffi::make_object<ObjA>());
+  TVM_FFI_ICHECK_EQ(refA->type_index(), ObjA::RuntimeTypeIndex());
+  TVM_FFI_ICHECK(refA.as<ffi::Object>() != nullptr);
+  TVM_FFI_ICHECK(refA.as<ObjA>() != nullptr);
+  TVM_FFI_ICHECK(refA.as<ObjBase>() != nullptr);
+  TVM_FFI_ICHECK(refA.as<ObjB>() == nullptr);
+  TVM_FFI_ICHECK(refA.as<ObjAA>() == nullptr);
+
+  ffi::ObjectRef refAA(ffi::make_object<ObjAA>());
+  TVM_FFI_ICHECK_EQ(refAA->type_index(), ObjAA::RuntimeTypeIndex());
+  TVM_FFI_ICHECK(refAA.as<ffi::Object>() != nullptr);
+  TVM_FFI_ICHECK(refAA.as<ObjBase>() != nullptr);
+  TVM_FFI_ICHECK(refAA.as<ObjA>() != nullptr);
+  TVM_FFI_ICHECK(refAA.as<ObjAA>() != nullptr);
+  TVM_FFI_ICHECK(refAA.as<ObjB>() == nullptr);
+
+  ffi::ObjectRef refB(ffi::make_object<ObjB>());
+  TVM_FFI_ICHECK_EQ(refB->type_index(), ObjB::RuntimeTypeIndex());
+  TVM_FFI_ICHECK(refB.as<ffi::Object>() != nullptr);
+  TVM_FFI_ICHECK(refB.as<ObjBase>() != nullptr);
+  TVM_FFI_ICHECK(refB.as<ObjA>() == nullptr);
+  TVM_FFI_ICHECK(refB.as<ObjAA>() == nullptr);
+  TVM_FFI_ICHECK(refB.as<ObjB>() != nullptr);
+}