1 /*
   2  * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /**
  25  * clone_ir : Check that functionNode.clone copies all nodes and that they
  26  * are not the same references
  27  *
  28  * @test
  29  * @run
  30  */
  31 
  32 var js1 = "var tuple = { func : function f(x) { if (x) { print('true'); { print('block_under-true'); } } else { print('false'); } } }";
  33 
  34 var Parser            = Java.type("jdk.nashorn.internal.parser.Parser");
  35 var ASTWriter         = Java.type("jdk.nashorn.internal.ir.debug.ASTWriter");
  36 var Context           = Java.type("jdk.nashorn.internal.runtime.Context");
  37 var ScriptEnvironment = Java.type("jdk.nashorn.internal.runtime.ScriptEnvironment");
  38 var Source            = Java.type("jdk.nashorn.internal.runtime.Source");
  39 var FunctionNode      = Java.type("jdk.nashorn.internal.ir.FunctionNode");
  40 var ThrowErrorManager = Java.type("jdk.nashorn.internal.runtime.Context$ThrowErrorManager");
  41 var System            = Java.type("java.lang.System");
  42 
  43 var toArrayMethod = ASTWriter.class.getMethod("toArray");
  44 var parseMethod  = Parser.class.getMethod("parse");
  45 
  46 function toString(obj) {
  47     var output = "{ ";
  48     for (property in obj) {
  49     output += property + ': ' + obj[property]+'; ';
  50     }
  51     return output + '}'
  52 }
  53 
  54 function flatten(func) {
  55     var writer   = new ASTWriter(func);
  56     var funcList = toArrayMethod.invoke(writer);
  57 
  58     var res = [];
  59     for each (x in funcList) {
  60         res.push({ name: x.getClass().getName(), id: System.identityHashCode(x) });
  61     }
  62     return res;
  63 }
  64 
  65 function check(contents) {
  66     return check_src(new Source("<no name>", contents));
  67 }
  68 
  69 function check_src(src) {
  70     var parser  = new Parser(Context.getContext().getEnv(), src, new ThrowErrorManager());
  71 
  72     var func = parseMethod.invoke(parser);
  73     print(func);
  74     var func2 = func.clone();
  75 
  76     var f1 = flatten(func);
  77     var f2 = flatten(func2);
  78 
  79     print(f1.map(toString));
  80     print(f2.map(toString));
  81 
  82     if (f1.length != f2.length) {
  83     print("length difference between original and clone " + f1.length + " != " + f2.length);
  84     return false;
  85     }
  86 
  87     for (var i = 0; i < f1.length; i++) {
  88     if (f1[i].name !== f2[i].name) {
  89         print("name conflict at " + i + " " + f1[i].name + " != " + f2[i].name);
  90         return false;
  91     } else if (f1[i].id === f2[i].id) {
  92         print("id problem at " + i + " " + toString(f1[i]) + " was not deep copied to " + toString(f2[i]) + " became " + f1[i].id + " != " + f2[i].id);
  93         return false;
  94     }
  95     }
  96 
  97     return true;
  98 }
  99 
 100 print(check(js1));