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js/src/jit-test/tests/debug/Script-getLineOffsets-03.js@6474c204b198 (annotated)

js/src/jit-test/tests/debug/Script-getLineOffsets-03.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.

michael@0	1	// getLineOffsets treats one-line compound statements as having only one entry-point.
michael@0	2	// (A breakpoint on a line that only executes once will only hit once.)
michael@0	3
michael@0	4	var g = newGlobal();
michael@0	5	g.line0 = null;
michael@0	6	var dbg = Debugger(g);
michael@0	7	var log;
michael@0	8	dbg.onDebuggerStatement = function (frame) {
michael@0	9	var s = frame.script;
michael@0	10	var lineno = g.line0 + 2;
michael@0	11	var offs = s.getLineOffsets(lineno);
michael@0	12	for (var i = 0; i < offs.length; i++) {
michael@0	13	assertEq(s.getOffsetLine(offs[i]), lineno);
michael@0	14	s.setBreakpoint(offs[i], {hit: function () { log += 'B'; }});
michael@0	15	}
michael@0	16	log += 'A';
michael@0	17	};
michael@0	18
michael@0	19	function test(s) {
michael@0	20	log = '';
michael@0	21	g.eval("line0 = Error().lineNumber;\n" +
michael@0	22	"debugger;\n" + // line0 + 1
michael@0	23	s); // line0 + 2
michael@0	24	assertEq(log, 'AB');
michael@0	25	}
michael@0	26
michael@0	27	g.i = 0;
michael@0	28	g.j = 0;
michael@0	29	test("{i++; i--; i++; i--; }");
michael@0	30	test("if (i === 0) i++; else i--;");
michael@0	31	test("while (i < 5) i++;");
michael@0	32	test("do --i; while (i > 0);");
michael@0	33	test("for (i = 0; i < 5; i++) j++;");
michael@0	34	test("for (var x in [0, 1, 2]) j++;");
michael@0	35	test("switch (i) { case 0: j = 0; case 1: j = 1; case 2: j = 2; default: j = i; }");
michael@0	36	test("switch (i) { case 'A': j = 0; case 'B': j = 1; case 'C': j = 2; default: j = i; }");