Tue, 16 Aug 2016 21:41:28 -0700
Added tag jdk8u102-b33 for changeset 36e3c21b5fca
attila@1110 | 1 | /* |
sundar@1482 | 2 | * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. |
attila@1110 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
sundar@1482 | 4 | * |
attila@1110 | 5 | * This code is free software; you can redistribute it and/or modify it |
attila@1110 | 6 | * under the terms of the GNU General Public License version 2 only, as |
attila@1110 | 7 | * published by the Free Software Foundation. |
sundar@1482 | 8 | * |
attila@1110 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
attila@1110 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
attila@1110 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
attila@1110 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
attila@1110 | 13 | * accompanied this code). |
sundar@1482 | 14 | * |
attila@1110 | 15 | * You should have received a copy of the GNU General Public License version |
attila@1110 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
attila@1110 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
sundar@1482 | 18 | * |
attila@1110 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
attila@1110 | 20 | * or visit www.oracle.com if you need additional information or have any |
attila@1110 | 21 | * questions. |
attila@1110 | 22 | */ |
attila@1110 | 23 | |
attila@1110 | 24 | /** |
attila@1110 | 25 | * JDK-8051778: support bind on all Nashorn callables |
attila@1110 | 26 | * |
attila@1110 | 27 | * @test |
attila@1110 | 28 | * @run |
attila@1110 | 29 | */ |
attila@1110 | 30 | |
attila@1110 | 31 | var bind = Function.prototype.bind; |
attila@1110 | 32 | |
attila@1110 | 33 | // Bind a POJO method |
attila@1110 | 34 | var l = new java.util.ArrayList(); |
attila@1110 | 35 | var l_add_foo = bind.call(l.add, l, "foo"); |
attila@1110 | 36 | l_add_foo(); |
attila@1110 | 37 | print("l=" + l); |
attila@1110 | 38 | |
attila@1110 | 39 | // Bind a BoundCallable |
attila@1110 | 40 | var l_add = bind.call(l.add, l); |
attila@1110 | 41 | var l_add_foo2 = bind.call(l_add, null, "foo2"); |
attila@1110 | 42 | l_add_foo2(); |
attila@1110 | 43 | print("l=" + l); |
attila@1110 | 44 | |
attila@1110 | 45 | // Bind a POJO method retrieved from one instance to a different but |
attila@1110 | 46 | // compatible instance. |
attila@1110 | 47 | var l2 = new java.util.ArrayList(); |
attila@1110 | 48 | var l2_size = bind.call(l.size, l2); |
attila@1110 | 49 | print("l2_size()=" + l2_size()); |
attila@1110 | 50 | |
attila@1110 | 51 | // Bind a Java type object (used as a constructor). |
attila@1110 | 52 | var construct_two = bind.call(java.lang.Integer, null, 2); |
attila@1110 | 53 | print("Bound Integer(2) constructor: " + new construct_two()) |
attila@1110 | 54 | |
attila@1110 | 55 | // Bind a @FunctionalInterface proxying to an object literal. NOTE: the |
attila@1110 | 56 | // expected value of this.a is always "original" and never "bound". This |
attila@1110 | 57 | // might seem counterintuitive, but we are not binding the apply() |
attila@1110 | 58 | // function of the object literal that defines the BiFunction behaviour, |
attila@1110 | 59 | // we are binding the SAM proxy object instead, and it is always |
attila@1110 | 60 | // forwarding to the apply() function with "this" set to the object |
attila@1110 | 61 | // literal. Basically, binding "this" for SAM proxies is useless; only |
attila@1110 | 62 | // binding arguments makes sense. |
attila@1110 | 63 | var f1 = new java.util.function.BiFunction() { |
attila@1110 | 64 | apply: function(x, y) { |
attila@1110 | 65 | return "BiFunction with literal: " + this.a + ", " + x + ", " + y; |
attila@1110 | 66 | }, |
attila@1110 | 67 | a: "unbound" |
attila@1110 | 68 | }; |
attila@1110 | 69 | print((bind.call(f1, {a: "bound"}))(1, 2)) |
attila@1110 | 70 | print((bind.call(f1, {a: "bound"}, 3))(4)) |
attila@1110 | 71 | print((bind.call(f1, {a: "bound"}, 5, 6))()) |
attila@1110 | 72 | |
attila@1110 | 73 | // Bind a @FunctionalInterface proxying to a function. With the same |
attila@1110 | 74 | // reasoning as above (binding the proxy vs. binding the JS function), |
attila@1110 | 75 | // the value of this.a will always be undefined, and never "bound". |
attila@1110 | 76 | var f2 = new java.util.function.BiFunction( |
attila@1110 | 77 | function(x, y) { |
attila@1110 | 78 | return "BiFunction with function: " + this.a + ", " + x + ", " + y; |
attila@1110 | 79 | } |
attila@1110 | 80 | ); |
attila@1110 | 81 | print((bind.call(f2, {a: "bound"}))(7, 8)) |
attila@1110 | 82 | print((bind.call(f2, {a: "bound"}, 9))(10)) |
attila@1110 | 83 | print((bind.call(f2, {a: "bound"}, 11, 12))()) |