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1 /* |
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2 * Copyright (c) 2010, 2013, 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. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 |
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24 /** |
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25 * JDK-8023630: Implement Java.super() as the preferred way to call super methods |
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26 * |
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27 * @test |
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28 * @run |
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29 */ |
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30 |
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31 var CharArray = Java.type("char[]") |
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32 var jString = Java.type("java.lang.String") |
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33 var Character = Java.type("java.lang.Character") |
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34 |
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35 function capitalize(s) { |
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36 if(s instanceof CharArray) { |
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37 return new jString(s).toUpperCase() |
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38 } |
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39 if(s instanceof jString) { |
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40 return s.toUpperCase() |
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41 } |
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42 return Character.toUpperCase(s) // must be int |
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43 } |
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44 |
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45 var sw = new (Java.type("java.io.StringWriter")) |
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46 |
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47 var FilterWriterAdapter = Java.extend(Java.type("java.io.FilterWriter")) |
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48 |
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49 var cw = new FilterWriterAdapter(sw) { |
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50 write: function(s, off, len) { |
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51 s = capitalize(s) |
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52 // Must handle overloads by arity |
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53 if(off === undefined) { |
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54 cw_super.write(s, 0, s.length()) |
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55 } else if (typeof s === "string") { |
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56 cw_super.write(s, off, len) |
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57 } |
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58 } |
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59 } |
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60 var cw_super = Java.super(cw) |
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61 |
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62 cw.write("abcd") |
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63 cw.write("e".charAt(0)) |
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64 cw.write("fgh".toCharArray()) |
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65 cw.write("**ijk**", 2, 3) |
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66 cw.write("***lmno**".toCharArray(), 3, 4) |
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67 cw.flush() |
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68 print(sw) |
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69 |
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70 // Can invoke super for Object methods |
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71 print("cw_super has hashCode(): " + (typeof cw_super.hashCode === "function")) |
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72 print("cw_super has super equals(): " + (typeof cw_super.equals === "function")) |
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73 // Can't invoke super for final methods |
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74 print("cw_super has no getClass(): " + (typeof cw_super.getClass === "undefined")) |
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75 print("cw_super has no wait(): " + (typeof cw_super.wait === "undefined")) |
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76 |
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77 var r = new (Java.type("java.lang.Runnable"))(function() {}) |
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78 var r_super = Java.super(r) |
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79 |
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80 // Can't invoke super for abstract methods |
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81 print("r_super has no run(): " + (typeof r_super.run === "undefined")) |
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82 // Interfaces can also invoke super Object methods |
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83 print("r_super has hashCode(): " + (typeof r_super.hashCode === "function")) |
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84 print("r_super has equals(): " + (typeof r_super.equals === "function")) |
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85 // But still can't invoke final methods |
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86 print("r_super has no getClass(): " + (typeof r_super.getClass === "undefined")) |
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87 print("r_super has no wait(): " + (typeof r_super.wait === "undefined")) |
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88 |
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89 var name = "write" |
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90 print("cw_super can access write through [] getter: " + (typeof cw_super[name] === "function")) |
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91 var name = "hashCode" |
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92 print("cw_super can access hashCode through [] getter: " + (typeof cw_super[name] === "function")) |
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93 var name = "getClass" |
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94 print("cw_super can not access getClass through [] getter: " + (typeof cw_super[name] === "undefined")) |