jdk8-mips64-public/nashorn: samples/this_for_eval.js@c21cf096431b (annotated)

samples/this_for_eval.js@c21cf096431b (annotated)

samples/this_for_eval.js

Wed, 18 Oct 2017 09:15:26 -0700

author: asaha
date: Wed, 18 Oct 2017 09:15:26 -0700
changeset 2196: c21cf096431b
parent 1524: 3f4320a01539
permissions: -rw-r--r--

Added tag jdk8u161-b03 for changeset e33ecc88dd63

 /*
  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  *   - Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  *
  *   - Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
  *     documentation and/or other materials provided with the distribution.
  *
  *   - Neither the name of Oracle nor the names of its
  *     contributors may be used to endorse or promote products derived
  *     from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 // how to pass arbitrary "this" object for eval'ed script?
 var obj = { foo: 44 };
 // the following won't work. eval.apply is indirect eval call
 // and so 'this' will be global object always! So, this
 // line will print 'undefined'
 eval.apply(obj, [ " print(this.foo)" ]);
 obj.myEval = eval;
 // still won't work - still indirect 'eval' call!
 // still undefined is printed!
 obj.myEval("print(this.foo)");
 function func(code) {
     eval(code);
 }
 // eval called inside func and so get's func's "this" as it's "this"!
 // So, 44 is printed
 func.apply(obj, [ "print(this.foo)" ]);