| /* |
| * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /** |
| * JDK-8051778: support bind on all Nashorn callables |
| * |
| * @test |
| * @run |
| */ |
| |
| var bind = Function.prototype.bind; |
| |
| // Bind a POJO method |
| var l = new java.util.ArrayList(); |
| var l_add_foo = bind.call(l.add, l, "foo"); |
| l_add_foo(); |
| print("l=" + l); |
| |
| // Bind a BoundCallable |
| var l_add = bind.call(l.add, l); |
| var l_add_foo2 = bind.call(l_add, null, "foo2"); |
| l_add_foo2(); |
| print("l=" + l); |
| |
| // Bind a POJO method retrieved from one instance to a different but |
| // compatible instance. |
| var l2 = new java.util.ArrayList(); |
| var l2_size = bind.call(l.size, l2); |
| print("l2_size()=" + l2_size()); |
| |
| // Bind a Java type object (used as a constructor). |
| var construct_two = bind.call(java.lang.Integer, null, 2); |
| print("Bound Integer(2) constructor: " + new construct_two()) |
| |
| // Bind a @FunctionalInterface proxying to an object literal. NOTE: the |
| // expected value of this.a is always "original" and never "bound". This |
| // might seem counterintuitive, but we are not binding the apply() |
| // function of the object literal that defines the BiFunction behaviour, |
| // we are binding the SAM proxy object instead, and it is always |
| // forwarding to the apply() function with "this" set to the object |
| // literal. Basically, binding "this" for SAM proxies is useless; only |
| // binding arguments makes sense. |
| var f1 = new java.util.function.BiFunction() { |
| apply: function(x, y) { |
| return "BiFunction with literal: " + this.a + ", " + x + ", " + y; |
| }, |
| a: "unbound" |
| }; |
| print((bind.call(f1, {a: "bound"}))(1, 2)) |
| print((bind.call(f1, {a: "bound"}, 3))(4)) |
| print((bind.call(f1, {a: "bound"}, 5, 6))()) |
| |
| // Bind a @FunctionalInterface proxying to a function. With the same |
| // reasoning as above (binding the proxy vs. binding the JS function), |
| // the value of this.a will always be undefined, and never "bound". |
| var f2 = new java.util.function.BiFunction( |
| function(x, y) { |
| return "BiFunction with function: " + this.a + ", " + x + ", " + y; |
| } |
| ); |
| print((bind.call(f2, {a: "bound"}))(7, 8)) |
| print((bind.call(f2, {a: "bound"}, 9))(10)) |
| print((bind.call(f2, {a: "bound"}, 11, 12))()) |