/js/src/jit-test/tests/debug/Script-getLineOffsets-05.js
http://github.com/zpao/v8monkey · JavaScript · 65 lines · 51 code · 9 blank · 5 comment · 2 complexity · c382e5f959930186462f6dcb258bc90c MD5 · raw file
- // getLineOffsets identifies multiple ways to land on a line.
- var g = newGlobal('new-compartment');
- g.line0 = null;
- var dbg = Debugger(g);
- var where;
- dbg.onDebuggerStatement = function (frame) {
- var s = frame.script, lineno, offs;
- lineno = g.line0 + where;
- offs = s.getLineOffsets(lineno);
- for (var i = 0; i < offs.length; i++) {
- assertEq(s.getOffsetLine(offs[i]), lineno);
- s.setBreakpoint(offs[i], {hit: function () { g.log += 'B'; }});
- }
- lineno++;
- offs = s.getLineOffsets(lineno);
- for (var i = 0; i < offs.length; i++) {
- assertEq(s.getOffsetLine(offs[i]), lineno);
- s.setBreakpoint(offs[i], {hit: function () { g.log += 'C'; }});
- }
- g.log += 'A';
- };
- function test(s) {
- assertEq(s.charAt(s.length - 1), '\n');
- var count = (s.split(/\n/).length - 1); // number of lines in s
- g.log = '';
- where = 1 + count;
- g.eval("line0 = Error().lineNumber;\n" +
- "debugger;\n" + // line0 + 1
- s + // line0 + 2 ... line0 + where
- "log += 'D';\n");
- assertEq(g.log, 'AB!CD');
- }
- // if-statement with yes and no paths on a single line
- g.i = 0;
- test("if (i === 0)\n" +
- " log += '!'; else log += 'X';\n");
- test("if (i === 2)\n" +
- " log += 'X'; else log += '!';\n");
- // break to a line that has code inside and outside the loop
- g.i = 2;
- test("while (1) {\n" +
- " if (i === 2) break;\n" +
- " log += 'X'; } log += '!';\n");
- // leaving a while loop by failing the test, when the last line has stuff both inside and outside the loop
- g.i = 0;
- test("while (i > 0) {\n" +
- " if (i === 70) log += 'X';\n" +
- " --i; } log += '!';\n");
- // multiple case-labels on the same line
- g.i = 0;
- test("switch (i) {\n" +
- " case 0: case 1: log += '!'; break; }\n");
- test("switch ('' + i) {\n" +
- " case '0': case '1': log += '!'; break; }\n");
- test("switch (i) {\n" +
- " case 'ok' + i: case i - i: log += '!'; break; }\n");