michael@0: const Cc = SpecialPowers.Cc;
michael@0: const Ci = SpecialPowers.Ci;
michael@0: const RETURN_CONTINUE = Ci.jsdIExecutionHook.RETURN_CONTINUE;
michael@0: const DebuggerService = Cc["@mozilla.org/js/jsd/debugger-service;1"];
michael@0: 
michael@0: var jsd = Cc['@mozilla.org/js/jsd/debugger-service;1']
michael@0:           .getService(Ci.jsdIDebuggerService);
michael@0: var jsdOnAtStart = false;
michael@0: 
michael@0: function setupJSD(test) {
michael@0:   netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
michael@0:   jsdOnAtStart = jsd.isOn;
michael@0:   if (jsdOnAtStart) {
michael@0:       runTest();
michael@0:   } else {
michael@0:       jsd.asyncOn({ onDebuggerActivated: function() { runTest(); } });
michael@0:   }
michael@0: }
michael@0: 
michael@0: // Ugly workaround: when you turn the debugger on, it will only see scripts
michael@0: // compiled after that point. And it may be turned on asynchronously. So
michael@0: // we put the debugged code into a separate script that gets loaded after
michael@0: // the debugger is on.
michael@0: function loadScript(url, element) {
michael@0:     var script = document.createElement('script');
michael@0:     script.type = 'text/javascript';
michael@0:     script.src = url;
michael@0:     script.defer = false;
michael@0:     element.appendChild(script);
michael@0: }
michael@0: 
michael@0: function findScriptByFunction(name) {
michael@0:     var script;
michael@0:     jsd.enumerateScripts({ enumerateScript:
michael@0:                            function(script_) {
michael@0:                                if (script_.functionName === name) {
michael@0:                                    script = script_;
michael@0:                                }
michael@0:                            }
michael@0:                          });
michael@0: 
michael@0:     if (typeof(script) === "undefined") {
michael@0:         throw("Cannot find function named '" + name + "'");
michael@0:     }
michael@0: 
michael@0:     return script;
michael@0: }
michael@0: 
michael@0: // Pass in a JSD script
michael@0: function breakOnAllLines(script) {
michael@0:     // Map each line to a PC, and collect that set of PCs (removing
michael@0:     // duplicates.)
michael@0:     var pcs = {};
michael@0:     for (i = 0; i < script.lineExtent; i++) {
michael@0:         var jsdLine = script.baseLineNumber + i;
michael@0:         var pc = script.lineToPc(jsdLine, Ci.jsdIScript.PCMAP_SOURCETEXT);
michael@0:         pcs[pc] = 1;
michael@0:     }
michael@0:         
michael@0:     // Set a breakpoint on each of those PCs.
michael@0:     for (pc in pcs) {
michael@0:         try {
michael@0:             script.setBreakpoint(pc);
michael@0:         } catch(e) {
michael@0:             alert("Error setting breakpoint: " + e);
michael@0:         }
michael@0:     }
michael@0: }
michael@0: 
michael@0: // Set a breakpoint on a script, where lineno is relative to the beginning
michael@0: // of the script (NOT the absolute line number within the file).
michael@0: function breakOnLine(script, lineno) {
michael@0:     breakOnAbsoluteLine(script, script.baseLineNumber + lineno);
michael@0: }
michael@0: 
michael@0: function breakOnAbsoluteLine(script, lineno) {
michael@0:     var pc = script.lineToPc(lineno, Ci.jsdIScript.PCMAP_SOURCETEXT);
michael@0:     script.setBreakpoint(pc);
michael@0: }
michael@0: 
michael@0: function loadPage(page) {
michael@0:     var url;
michael@0:     if (page.match(/^\w+:/)) {
michael@0:         // Full URI, so just use it
michael@0:         url = page;
michael@0:     } else {
michael@0:         // Treat as relative to previous page
michael@0:         url = document.location.href.replace(/\/[^\/]*$/, "/" + page);
michael@0:     }
michael@0: 
michael@0:     dump("Switching to URL " + url + "\n");
michael@0: 
michael@0:     gURLBar.value = url;
michael@0:     gURLBar.handleCommand();
michael@0: }
michael@0: 
michael@0: function breakpointObserver(lines, interesting, callback) {
michael@0:     jsd.breakpointHook = { onExecute: function(frame, type, rv) {
michael@0:         breakpoints_hit.push(frame.line);
michael@0:         if (frame.line in interesting) {
michael@0:             return callback(frame, type, breakpoints_hit);
michael@0:         } else {
michael@0:             return RETURN_CONTINUE;
michael@0:         }
michael@0:     } };
michael@0: }
michael@0: 
michael@0: function dumpStack(frame, msg) {
michael@0:     dump(msg + ":\n");
michael@0:     while(frame) {
michael@0:         var callee = frame.callee;
michael@0:         if (callee !== null)
michael@0:           callee = callee.jsClassName;
michael@0:         dump("  " + frame.script.fileName + ":" + frame.line + " func=" + frame.script.functionName + " ffunc=" + frame.functionName + " callee=" + callee + " pc=" + frame.pc + "\n");
michael@0:         frame = frame.callingFrame;
michael@0:     }
michael@0: }