1 /* |
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2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 package com.sun.tools.sjavac.comp.dependencies; |
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26 |
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27 import java.util.Collections; |
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28 import java.util.HashSet; |
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29 import java.util.Objects; |
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30 import java.util.Set; |
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31 import java.util.stream.Collectors; |
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32 |
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33 import com.sun.tools.javac.code.Symbol.ClassSymbol; |
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34 import com.sun.tools.javac.code.Symbol.PackageSymbol; |
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35 import com.sun.tools.javac.code.Symbol.TypeSymbol; |
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36 import com.sun.tools.javac.code.Kinds; |
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37 import com.sun.tools.javac.code.Type; |
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38 |
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39 import static com.sun.tools.javac.code.Kinds.Kind.*; |
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40 |
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41 public class TypeAndSupertypesDependency implements Dependency { |
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42 |
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43 protected TypeSymbol type; |
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44 |
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45 public TypeAndSupertypesDependency(TypeSymbol type) { |
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46 this.type = Objects.requireNonNull(type); |
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47 } |
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48 |
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49 private Set<TypeSymbol> allSupertypes(TypeSymbol t) { |
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50 if (t == null) |
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51 return Collections.emptySet(); |
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52 Set<TypeSymbol> result = new HashSet<>(); |
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53 result.add(t); |
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54 if (t instanceof ClassSymbol) { |
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55 ClassSymbol cs = (ClassSymbol) t; |
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56 result.addAll(allSupertypes(cs.getSuperclass().tsym)); |
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57 for (Type it : cs.getInterfaces()) |
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58 result.addAll(allSupertypes(it.tsym)); |
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59 } |
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60 return result; |
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61 } |
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62 |
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63 @Override |
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64 public Set<PackageSymbol> getPackages() { |
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65 if (type.kind == ERR) |
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66 return Collections.emptySet(); |
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67 if (type instanceof ClassSymbol) { |
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68 return allSupertypes(type).stream() |
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69 .map(TypeSymbol::packge) |
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70 .collect(Collectors.toSet()); |
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71 } |
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72 throw new AssertionError("Could not get package name for " + type); |
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73 } |
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74 } |
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75 |
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