1 /* 2 * Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 package jdk.test.lib.jittester.utils; 25 26 import jdk.test.lib.jittester.BuiltInType; 27 import jdk.test.lib.jittester.Type; 28 29 import java.util.Collection; 30 import java.util.List; 31 import java.util.stream.Collectors; 32 33 /** 34 * Utility functions for type system 35 */ 36 public class TypeUtil { 37 /** 38 * Gets a list of implicitly castable types to a given one from the collection of types 39 * 40 * @param types a collection to get types from 41 * @param type a target type which result type could be implicitly cast to 42 * @return a result collection of types that match given conditions 43 */ 44 public static Collection<Type> getImplicitlyCastable(Collection<Type> types, Type type) { 45 return types.stream() 46 .filter(t -> t.canImplicitlyCastTo(type)) 47 .collect(Collectors.toList()); 48 } 49 50 /** 51 * Gets a list of explicitly castable types to a given one from the collection of types 52 * 53 * @param types a collection to get types from 54 * @param type a target type which result type could be explicitly cast to 55 * @return a result collection of types that match given conditions 56 */ 57 public static Collection<Type> getExplicitlyCastable(Collection<Type> types, Type type) { 58 return types.stream() 59 .filter(t -> t.canExplicitlyCastTo(type)) 60 .collect(Collectors.toList()); 61 } 62 63 /** 64 * Gets a list of more capacious types than a given one from the collection of types 65 * 66 * @param types a collection to get types from 67 * @param type a type to filter given types by capacity 68 * @return a result collection of types that match given conditions 69 */ 70 public static List<Type> getMoreCapaciousThan(Collection<Type> types, BuiltInType type) { 71 return types.stream() 72 .filter(t -> ((BuiltInType) t).isMoreCapaciousThan(type)) 73 .collect(Collectors.toList()); 74 } 75 76 /** 77 * Gets a list of less or equal capacious types than a given one from the collection of types 78 * 79 * @param types a collection to get types from 80 * @param type a type to filter given types by capacity 81 * @return a result collection of types that match given conditions 82 */ 83 public static List<Type> getLessCapaciousOrEqualThan(Collection<Type> types, BuiltInType type) { 84 return types.stream() 85 .filter(t -> !((BuiltInType) t).isMoreCapaciousThan(type) || t.equals(type)) 86 .collect(Collectors.toList()); 87 } 88 }