event_queue.js revision 877:cf4d2252d444 
1/*
2 * Copyright (c) 2010, 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 * Debug.eventqueue test - instead of screen scraping, test the concept of asking Debug for
26 * an event log of favourable events.
27 *
28 * @test
29 * @fork
30 * @option -Dnashorn.debug=true
31 * @option --log=recompile:quiet
32 * @option --lazy-compilation
33 */
34
35print(Debug);
36print();
37
38var forName       = java.lang.Class["forName(String)"];
39var RuntimeEvent  = forName("jdk.nashorn.internal.runtime.events.RuntimeEvent").static;
40var getValue      = RuntimeEvent.class.getMethod("getValue");
41var getValueClass = RuntimeEvent.class.getMethod("getValueClass");
42
43print(RuntimeEvent);
44
45var RewriteException = forName("jdk.nashorn.internal.runtime.RewriteException").static;
46var getReturnType    = RewriteException.class.getMethod("getReturnType");
47
48print(RewriteException);
49
50var a = [1.1, 2.2];
51function f() {
52    var sum = 2;
53    for (var i = 0; i < a.length; i++) {
54    sum *= a[i];
55    }
56    return sum;
57}
58
59function g() {
60    var diff = 17;
61    for (var i = 0; i < a.length; i++) {
62    diff -= a[i];
63    }
64    return diff;
65}
66
67//kill anything that may already be in the event queue from earlier debug runs
68Debug.clearRuntimeEvents();
69
70print();
71print(f());
72print(g());
73
74print();
75events = Debug.getRuntimeEvents();
76print("Done with " + events.length + " in the event queue");
77//make sure we got runtime events
78print("events = " + (events.toString().indexOf("RuntimeEvent") != -1));
79print("events.length = " + events.length);
80
81var lastInLoop = undefined;
82for (var i = 0; i < events.length; i++) {
83    var e = events[i];
84    print("event #" + i);
85    print("\tevent class=" + e.getClass());
86    print("\tvalueClass in event=" + getValueClass.invoke(e));
87    var v = getValue.invoke(e);
88    print("\tclass of value=" + v.getClass());
89    print("\treturn type=" + getReturnType.invoke(v));
90    lastInLoop = events[i];
91}
92
93print();
94print("in loop last class = " + lastInLoop.getClass());
95print("in loop last value class = " + getValueClass.invoke(lastInLoop));
96var rexInLoop = getValue.invoke(lastInLoop);
97print("in loop rex class = " + rexInLoop.getClass());
98print("in loop rex return type = " + getReturnType.invoke(rexInLoop));
99
100//try last runtime events
101var last = Debug.getLastRuntimeEvent();
102//the code after the loop creates additional rewrite exceptions
103print();
104print(last !== lastInLoop);
105print();
106
107print("last class = " + last.getClass());
108print("last value class = " + getValueClass.invoke(last));
109var rex = getValue.invoke(last);
110print("rex class = " + rex.getClass());
111print("rex return type = " + getReturnType.invoke(rex));
112
113//try the capacity setter
114print();
115print(Debug.getEventQueueCapacity());
116Debug.setEventQueueCapacity(2048);
117print(Debug.getEventQueueCapacity());
118
119//try clear events
120print();
121Debug.clearRuntimeEvents();
122print(Debug.getRuntimeEvents().length);
123
124