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1 /*
2  * Copyright (C) 2019 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef ART_LIBARTBASE_BASE_HIDDENAPI_DOMAIN_H_
18 #define ART_LIBARTBASE_BASE_HIDDENAPI_DOMAIN_H_
19 
20 namespace art {
21 namespace hiddenapi {
22 
23 // List of domains supported by the hidden API access checks. Domain with a lower
24 // ordinal is considered more "trusted", i.e. always allowed to access members of
25 // domains with a greater ordinal. Access checks are performed when code tries to
26 // access a method/field from a more trusted domain than itself.
27 enum class Domain {
28   kCorePlatform = 0,
29   kPlatform,
30   kApplication,
31 };
32 
IsDomainMoreTrustedThan(Domain domainA,Domain domainB)33 inline bool IsDomainMoreTrustedThan(Domain domainA, Domain domainB) {
34   return static_cast<uint32_t>(domainA) <= static_cast<uint32_t>(domainB);
35 }
36 
37 }  // namespace hiddenapi
38 }  // namespace art
39 
40 
41 #endif  // ART_LIBARTBASE_BASE_HIDDENAPI_DOMAIN_H_
42