michael@0: // A breakpoint handler hit method can return {throw: exc} to throw an exception.
michael@0: 
michael@0: var g = newGlobal();
michael@0: var dbg = Debugger(g);
michael@0: dbg.onDebuggerStatement = function (frame) {
michael@0:     function hit(frame) {
michael@0:         return {throw: frame.eval("new Error('PASS')").return};
michael@0:     }
michael@0: 
michael@0:     var s = frame.script;
michael@0:     var offs = s.getLineOffsets(g.line0 + 3);
michael@0:     for (var i = 0; i < offs.length; i++)
michael@0:         s.setBreakpoint(offs[i], {hit: hit});
michael@0: };
michael@0: 
michael@0: g.s = null;
michael@0: g.eval("line0 = Error().lineNumber;\n" +
michael@0:        "debugger;\n" +          // line0 + 1
michael@0:        "try {\n" +              // line0 + 2
michael@0:        "    s = 'FAIL';\n" +    // line0 + 3
michael@0:        "} catch (exc) {\n" +
michael@0:        "    assertEq(exc.constructor, Error);\n" +
michael@0:        "    s = exc.message;\n" +
michael@0:        "}\n");
michael@0: assertEq(g.s, 'PASS');