1/* 2 * Copyright (C) 2017 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 LIBTEXTCLASSIFIER_TESTS_FUNCTIONS_H_ 18#define LIBTEXTCLASSIFIER_TESTS_FUNCTIONS_H_ 19 20#include <math.h> 21 22#include "common/registry.h" 23 24namespace libtextclassifier { 25namespace nlp_core { 26namespace functions { 27// Abstract double -> double function. 28class Function : public RegisterableClass<Function> { 29 public: 30 virtual ~Function() {} 31 virtual double Evaluate(double x) = 0; 32}; 33 34class Cos : public Function { 35 public: 36 double Evaluate(double x) override { return cos(x); } 37 TC_DEFINE_REGISTRATION_METHOD("cos", Cos); 38}; 39 40class Exp : public Function { 41 public: 42 double Evaluate(double x) override { return exp(x); } 43 TC_DEFINE_REGISTRATION_METHOD("exp", Exp); 44}; 45 46// Abstract int -> int function. 47class IntFunction : public RegisterableClass<IntFunction> { 48 public: 49 virtual ~IntFunction() {} 50 virtual int Evaluate(int k) = 0; 51}; 52 53class Inc : public IntFunction { 54 public: 55 int Evaluate(int k) override { return k + 1; } 56 TC_DEFINE_REGISTRATION_METHOD("inc", Inc); 57}; 58 59class Dec : public IntFunction { 60 public: 61 int Evaluate(int k) override { return k + 1; } 62 TC_DEFINE_REGISTRATION_METHOD("dec", Dec); 63}; 64} // namespace functions 65 66// Should be inside namespace libtextclassifier::nlp_core. 67TC_DECLARE_CLASS_REGISTRY_NAME(functions::Function); 68TC_DECLARE_CLASS_REGISTRY_NAME(functions::IntFunction); 69 70} // namespace nlp_core 71} // namespace libtextclassifier 72 73#endif // LIBTEXTCLASSIFIER_TESTS_FUNCTIONS_H_ 74