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      1 /*
      2  * Copyright (C) 2014 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 H_ANDROID_SPLIT_RULE
     18 #define H_ANDROID_SPLIT_RULE
     19 
     20 #include "SplitDescription.h"
     21 
     22 #include <utils/RefBase.h>
     23 #include <utils/StrongPointer.h>
     24 #include <utils/String8.h>
     25 #include <utils/Vector.h>
     26 
     27 namespace split {
     28 
     29 struct Rule : public virtual android::RefBase {
     30     inline Rule();
     31     Rule(const Rule& rhs);
     32 
     33     enum Operator {
     34         LESS_THAN = 1,
     35         GREATER_THAN,
     36         EQUALS,
     37         CONTAINS_ANY,
     38         CONTAINS_ALL,
     39         IS_TRUE,
     40         IS_FALSE,
     41         AND_SUBRULES,
     42         OR_SUBRULES,
     43         ALWAYS_TRUE,
     44     };
     45 
     46     Operator op;
     47 
     48     enum Key {
     49         NONE = 0,
     50         SDK_VERSION,
     51         SCREEN_DENSITY,
     52         LANGUAGE,
     53         NATIVE_PLATFORM,
     54         TOUCH_SCREEN,
     55         SCREEN_SIZE,
     56         SCREEN_LAYOUT,
     57     };
     58 
     59     Key key;
     60     bool negate;
     61 
     62     android::Vector<android::String8> stringArgs;
     63     android::Vector<int> longArgs;
     64     android::Vector<double> doubleArgs;
     65     android::Vector<android::sp<Rule> > subrules;
     66 
     67     android::String8 toJson(int indent=0) const;
     68 
     69     static android::sp<Rule> simplify(android::sp<Rule> rule);
     70 };
     71 
     72 Rule::Rule()
     73 : op(ALWAYS_TRUE)
     74 , key(NONE)
     75 , negate(false) {}
     76 
     77 } // namespace split
     78 
     79 #endif // H_ANDROID_SPLIT_RULE
     80