michael@0: // getLineOffsets treats one-line compound statements as having only one entry-point.
michael@0: // (A breakpoint on a line that only executes once will only hit once.)
michael@0: 
michael@0: var g = newGlobal();
michael@0: g.line0 = null;
michael@0: var dbg = Debugger(g);
michael@0: var log;
michael@0: dbg.onDebuggerStatement = function (frame) {
michael@0:     var s = frame.script;
michael@0:     var lineno = g.line0 + 2;
michael@0:     var offs = s.getLineOffsets(lineno);
michael@0:     for (var i = 0; i < offs.length; i++) {
michael@0:         assertEq(s.getOffsetLine(offs[i]), lineno);
michael@0:         s.setBreakpoint(offs[i], {hit: function () { log += 'B'; }});
michael@0:     }
michael@0:     log += 'A';
michael@0: };
michael@0: 
michael@0: function test(s) {
michael@0:     log = '';
michael@0:     g.eval("line0 = Error().lineNumber;\n" +
michael@0:            "debugger;\n" +  // line0 + 1
michael@0:            s);              // line0 + 2
michael@0:     assertEq(log, 'AB');
michael@0: }
michael@0: 
michael@0: g.i = 0;
michael@0: g.j = 0;
michael@0: test("{i++; i--; i++; i--; }");
michael@0: test("if (i === 0) i++; else i--;");
michael@0: test("while (i < 5) i++;");
michael@0: test("do --i; while (i > 0);");
michael@0: test("for (i = 0; i < 5; i++) j++;");
michael@0: test("for (var x in [0, 1, 2]) j++;");
michael@0: test("switch (i) { case 0: j = 0; case 1: j = 1; case 2: j = 2; default: j = i; }");
michael@0: test("switch (i) { case 'A': j = 0; case 'B': j = 1; case 'C': j = 2; default: j = i; }");