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comparison: js/src/jit-test/tests/debug/Script-getLineOffsets-04.js
js/src/jit-test/tests/debug/Script-getLineOffsets-04.js
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:7cb47031ebd0 |
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| 1 // getLineOffsets works with instructions reachable only by breaking out of a loop or switch. | |
| 2 | |
| 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.eval("f").return.script; | |
| 9 var lineno = g.line0 + where; | |
| 10 var offs = s.getLineOffsets(lineno); | |
| 11 for (var i = 0; i < offs.length; i++) { | |
| 12 assertEq(s.getOffsetLine(offs[i]), lineno); | |
| 13 s.setBreakpoint(offs[i], {hit: function () { g.log += 'B'; }}); | |
| 14 } | |
| 15 g.log += 'A'; | |
| 16 }; | |
| 17 | |
| 18 function test(s) { | |
| 19 var count = (s.split(/\n/).length - 1); // number of newlines in s | |
| 20 g.log = ''; | |
| 21 where = 3 + count + 1; | |
| 22 g.eval("line0 = Error().lineNumber;\n" + | |
| 23 "debugger;\n" + // line0 + 1 | |
| 24 "function f(i) {\n" + // line0 + 2 | |
| 25 s + // line0 + 3 ... line0 + where - 2 | |
| 26 " log += '?';\n" + // line0 + where - 1 | |
| 27 " log += '!';\n" + // line0 + where | |
| 28 "}\n"); | |
| 29 g.f(0); | |
| 30 assertEq(g.log, 'A?B!'); | |
| 31 } | |
| 32 | |
| 33 test("i = 128;\n" + | |
| 34 "for (;;) {\n" + | |
| 35 " var x = i - 10;;\n" + | |
| 36 " if (x < 0)\n" + | |
| 37 " break;\n" + | |
| 38 " i >>= 2;\n" + | |
| 39 "}\n"); | |
| 40 | |
| 41 test("while (true)\n" + | |
| 42 " if (++i === 2) break;\n"); | |
| 43 | |
| 44 test("do {\n" + | |
| 45 " if (++i === 2) break;\n" + | |
| 46 "} while (true);\n"); | |
| 47 | |
| 48 test("switch (i) {\n" + | |
| 49 " case 2: return 7;\n" + | |
| 50 " case 1: return 8;\n" + | |
| 51 " case 0: break;\n" + | |
| 52 " default: return -i;\n" + | |
| 53 "}\n"); |
