Tue, 07 May 2013 14:43:17 +0200
8013914: Removed explicit LineNumberNodes that were too brittle when code moves around, and also introduced unnecessary footprint. Introduced the Statement node and fixed dead code elimination issues that were discovered by the absense of labels for LineNumberNodes.
Reviewed-by: jlaskey, attila
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 */
24 /**
25 * no_line_numbers.js - make sure that switching off line number generation
26 * doesn't break. Otherwise, this is just NASHORN-73, a unit test particularly
27 * prone to label bugs in CodeGenerator
28 *
29 * @test
30 * @run
31 * @option --debug-lines=false
32 */
34 print("x = " + x);
35 do {
36 break;
37 var x;
38 } while (true);
41 print("y = " + y);
42 while (true) {
43 break;
44 var y;
45 }
47 print("z = " + z);
48 for ( ; ; ) {
49 break;
50 var z;
51 print("THIS SHOULD NEVER BE PRINTED!");
52 }
54 while (true) {
55 break;
56 if (true) {
57 var s;
58 }
59 }
61 print("s = "+s);
63 print("u = "+u);
64 for ( ; ; ) {
65 break;
66 while (true) {
67 do {
68 var u;
69 } while (true);
70 }
71 }
73 function terminal() {
74 print("r = "+r);
75 print("t = "+t);
76 for (;;) {
77 var r;
78 return;
79 var t;
80 print("THIS SHOULD NEVER BE PRINTED!");
81 }
82 print("NEITHER SHOULD THIS");
83 }
85 terminal();
87 function terminal2() {
88 print("q = "+q);
89 for (;;) {
90 return;
91 print("THIS SHOULD NEVER BE PRINTED!");
92 }
93 print("NEITHER SHOULD THIS");
94 }
96 try {
97 terminal2();
98 } catch (e) {
99 print(e);
100 }
102 function scope2() {
103 var b = 10;
104 print("b = "+b);
105 }
107 scope2();
109 try {
110 print("b is = "+b);
111 } catch (e) {
112 print(e);
113 }
116 function disp_a() {
117 var a = 20;
118 print("Value of 'a' inside the function " + a);
119 }
121 var a = 10;
123 disp_a();
125 print("Value of 'a' outside the function " + a);