1 /**
2  * Copyright (c) 2024 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef ES2PANDA_UTIL_INCLUDE_AST_BUILDER
17 #define ES2PANDA_UTIL_INCLUDE_AST_BUILDER
18 
19 #include "mem/arena_allocator.h"
20 #include "util/helpers.h"
21 
22 namespace ark::es2panda::ir {
23 
24 template <typename NodeType>
25 class AstBuilder {
26 public:
AstBuilder(ark::ArenaAllocator *allocator)27     explicit AstBuilder(ark::ArenaAllocator *allocator) : allocator_(allocator) {}
28     NO_COPY_SEMANTIC(AstBuilder);
29     NO_MOVE_SEMANTIC(AstBuilder);
30     virtual ~AstBuilder() = default;
31 
Allocator()32     ark::ArenaAllocator *Allocator()
33     {
34         return allocator_;
35     }
36 
37     template <typename BuilderType>
SetParent(AstNode *parent)38     BuilderType &SetParent(AstNode *parent)
39     {
40         parent_ = parent;
41         return *static_cast<BuilderType *>(this);
42     }
43 
44     template <typename... Args>
AllocNode(Args &&....args)45     NodeType *AllocNode(Args &&...args)
46     {
47         auto node = util::NodeAllocator::ForceSetParent<NodeType>(allocator_, std::forward<Args>(args)...);
48         if (parent_ != nullptr) {
49             node->SetParent(parent_);
50         }
51         return node;
52     }
53 
54 private:
55     ark::ArenaAllocator *allocator_;
56     AstNode *parent_ {};
57 };
58 
59 }  // namespace ark::es2panda::ir
60 #endif  // ES2PANDA_UTIL_INCLUDE_AST_BUILDER