1 /*
2 * Copyright (c) 2014, 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 * JDK-8044798: API for debugging Nashorn
26 *
27 * @test
28 * @option -Dnashorn.mirror.always=false
29 * @fork
30 */
31
32 // basic API exercise checks
33
34 var Arrays = Java.type("java.util.Arrays");
35 var CharArray = Java.type("char[]");
36 var Reflector = Java.type("jdk.nashorn.test.models.Reflector");
37 var DebuggerSupport = Java.type("jdk.nashorn.internal.runtime.DebuggerSupport");
38 var DebuggerValueDesc = Java.type("jdk.nashorn.internal.runtime.DebuggerSupport.DebuggerValueDesc");
39
40 var valueDescFields = DebuggerValueDesc.class.declaredFields;
41 Arrays.sort(valueDescFields, function(f1, f2) f1.name.compareTo(f2.name));
42 for each (var f in valueDescFields) {
43 Reflector.setAccessible(f);
44 }
45
46 var debuggerSupportMethods = DebuggerSupport.class.declaredMethods;
47
48 // methods of DebuggerSupport that we use
49 var evalMethod, valueInfoMethod, valueInfosMethod;
50 var getSourceInfoMethod, valueAsStringMethod;
51
52 for each (var m in debuggerSupportMethods) {
53 Reflector.setAccessible(m);
54 switch (m.name) {
55 case "eval":
56 evalMethod = m;
57 break;
58 case "valueInfo":
59 if (m.parameterCount == 3) {
60 valueInfoMethod = m;
61 }
62 break;
63 case "valueInfos":
64 valueInfosMethod = m;
65 break;
66 case "valueAsString":
67 valueAsStringMethod = m;
68 break;
69 case "getSourceInfo":
70 getSourceInfoMethod = m;
71 break;
72 }
73 }
74
75 // eval
76 var value = evalMethod.invoke(null, null, null, "33 + 55", false);
77 print(value);
78
79 // valueInfo
80 var info = valueInfoMethod.invoke(null, "apply", Function, true);
81 for each (var f in valueDescFields) {
82 print(f.name, "=", f.get(info));
83 }
84
85 // valueInfo - user defined object
86 var info = valueInfoMethod.invoke(null, "foo", { foo: 343 }, true);
87 for each (var f in valueDescFields) {
88 print(f.name, "=", f.get(info));
89 }
90
91 // valueInfos
92 var infos = valueInfosMethod.invoke(null, Object, true);
93 for each (var info in infos) {
94 for each (var f in valueDescFields) {
95 print(f.name, "=", f.get(info));
96 }
97 }
98
99 // valueInfos - user defined object
100 var infos = valueInfosMethod.invoke(null, { foo: 34, bar: "hello" }, true);
101 for each (var info in infos) {
102 for each (var f in valueDescFields) {
103 print(f.name, "=", f.get(info));
104 }
105 }
106
107 // valueAsString
108 function printValue(value) {
109 print(valueAsStringMethod.invoke(null, value));
110 }
111
112 printValue(undefined);
113 printValue(null);
114 printValue("hello");
115 printValue(Math.PI);
116 printValue(this);
117
118 // The below are not part of DebuggerSupport. But we need these to
119 // test DebuggerSupport.getSourceInfo etc. which need compiled script class
120
121 var Source = Java.type("jdk.nashorn.internal.runtime.Source");
122 var Context = Java.type("jdk.nashorn.internal.runtime.Context");
123 var ThrowErrorManager = Java.type("jdk.nashorn.internal.runtime.Context.ThrowErrorManager");
124 var contextCls = java.lang.Class.forName("jdk.nashorn.internal.runtime.Context");
125 var sourceCls = Source.class;
126 var errorMgrCls = Java.type("jdk.nashorn.internal.runtime.ErrorManager").class;
127 var booleanCls = Java.type("java.lang.Boolean").TYPE;
128 var stringCls = Java.type("java.lang.String").class;
129
130 // private compile method of Context class
131 var compileMethod = contextCls.getDeclaredMethod("compile",
132 sourceCls, errorMgrCls, booleanCls, booleanCls);
133 Reflector.setAccessible(compileMethod);
134
135 var getContextMethod = contextCls.getMethod("getContext");
136 Reflector.setAccessible(getContextMethod);
137
138 var sourceForMethod = sourceCls.getMethod("sourceFor", stringCls, stringCls);
139 var scriptCls = compileMethod.invoke(getContextMethod.invoke(null),
140 sourceForMethod.invoke(null, "test", "print('hello')"),
141 ThrowErrorManager.class.newInstance(), false, false);
142
143 var SCRIPT_CLASS_NAME_PREFIX = "jdk.nashorn.internal.scripts.Script$";
144 print("script class name pattern satisfied? " +
145 scriptCls.name.startsWith(SCRIPT_CLASS_NAME_PREFIX));
146
147 var srcInfo = getSourceInfoMethod.invoke(null, scriptCls);
148 var srcInfoFields = srcInfo.class.declaredFields;
149 Arrays.sort(srcInfoFields, function(f1, f2) f1.name.compareTo(f2.name));
150
151 print("Source info");
152 for each (var f in srcInfoFields) {
153 Reflector.setAccessible(f);
154 var fieldValue = f.get(srcInfo);
155 if (fieldValue instanceof CharArray) {
156 fieldValue = new java.lang.String(fieldValue);
157 }
158
159 print(f.name, "=", fieldValue);
160 }