js/src/jit-test/tests/debug/Script-getLineOffsets-05.js@6474c204b198
js/src/jit-test/tests/debug/Script-getLineOffsets-05.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
1 // getLineOffsets identifies multiple ways to land on a line.
3 var g = newGlobal();
4 g.line0 = null;
5 var dbg = Debugger(g);
6 var where;
7 dbg.onDebuggerStatement = function (frame) {
8 var s = frame.script, lineno, offs;
10 lineno = g.line0 + where;
11 offs = s.getLineOffsets(lineno);
12 for (var i = 0; i < offs.length; i++) {
13 assertEq(s.getOffsetLine(offs[i]), lineno);
14 s.setBreakpoint(offs[i], {hit: function () { g.log += 'B'; }});
15 }
17 lineno++;
18 offs = s.getLineOffsets(lineno);
19 for (var i = 0; i < offs.length; i++) {
20 assertEq(s.getOffsetLine(offs[i]), lineno);
21 s.setBreakpoint(offs[i], {hit: function () { g.log += 'C'; }});
22 }
24 g.log += 'A';
25 };
27 function test(s) {
28 assertEq(s.charAt(s.length - 1), '\n');
29 var count = (s.split(/\n/).length - 1); // number of lines in s
30 g.log = '';
31 where = 1 + count;
32 g.eval("line0 = Error().lineNumber;\n" +
33 "debugger;\n" + // line0 + 1
34 s + // line0 + 2 ... line0 + where
35 "log += 'D';\n");
36 assertEq(g.log, 'AB!CD');
37 }
39 // if-statement with yes and no paths on a single line
40 g.i = 0;
41 test("if (i === 0)\n" +
42 " log += '!'; else log += 'X';\n");
43 test("if (i === 2)\n" +
44 " log += 'X'; else log += '!';\n");
46 // break to a line that has code inside and outside the loop
47 g.i = 2;
48 test("while (1) {\n" +
49 " if (i === 2) break;\n" +
50 " log += 'X'; } log += '!';\n");
52 // leaving a while loop by failing the test, when the last line has stuff both inside and outside the loop
53 g.i = 0;
54 test("while (i > 0) {\n" +
55 " if (i === 70) log += 'X';\n" +
56 " --i; } log += '!';\n");
58 // multiple case-labels on the same line
59 g.i = 0;
60 test("switch (i) {\n" +
61 " case 0: case 1: log += '!'; break; }\n");
62 test("switch ('' + i) {\n" +
63 " case '0': case '1': log += '!'; break; }\n");
64 test("switch (i) {\n" +
65 " case 'ok' + i: case i - i: log += '!'; break; }\n");
