mirror of https://github.com/axmolengine/axmol.git
629 lines
18 KiB
JavaScript
629 lines
18 KiB
JavaScript
dbg = {};
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dbg.log = log;
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var textCommandProcessor = {};
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textCommandProcessor.break = function (str) {
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var md = str.match(/^b(reak)?\s+([^:]+):(\d+)/);
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if (!md) {
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return ({commandname : "break",
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success : false,
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stringResult : "command could not be parsed"});
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}
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var scripts = dbg.scripts[md[2]],
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tmpScript = null;
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if (scripts) {
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var breakLine = parseInt(md[3], 10),
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off = -1;
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for (var n=0; n < scripts.length; n++) {
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offsets = scripts[n].getLineOffsets(breakLine);
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if (offsets.length > 0) {
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off = offsets[0];
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tmpScript = scripts[n];
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break;
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}
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}
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if (off >= 0) {
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tmpScript.setBreakpoint(off, breakpointHandler);
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return ({commandname : "break",
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success : true,
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jsfilename : md[2],
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breakpointlinenumber : breakLine});
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} else {
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return ({commandname : "break",
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success : false,
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stringResult : "no valid offsets at that line"});
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}
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} else {
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return ({commandname : "break",
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success : false,
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jsfilename : md[2],
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stringResult : "Invalid script name"});
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}
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}
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textCommandProcessor.info = function (str) {
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var report = "";
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var md = str.match(/^info\s+(\S+)/);
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if (md) {
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report += "info - NYI";
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report += "\nmd[0] = " + md[0];
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report += "\nmd[1] = " + md[1];
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return ({commandname : "info",
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success : true,
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stringResult : report});
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} else {
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return ({commandname : "info",
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success : false,
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stringResult : report});
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}
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}
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textCommandProcessor.clear = function (str) {
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var report = "";
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report += "clearing all breakpoints";
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dbg.dbg.clearAllBreakpoints();
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return ({commandname : "clear",
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success : true,
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stringResult : report});
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}
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textCommandProcessor.scripts = function (str) {
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var report = "List of available scripts\n";
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report += Object.keys(dbg.scripts).join("\n");
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return ({commandname : "scripts",
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success : true,
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stringResult : report});
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}
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textCommandProcessor.step = function (str, frame, script) {
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if (frame) {
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dbg.breakLine = script.getOffsetLine(frame.offset) + 1;
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frame.onStep = function () {
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stepFunction(frame, frame.script);
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return undefined;
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};
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stop = true;
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_unlockVM();
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return ({commandname : "step",
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success : true,
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stringResult : ""});
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} else {
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return ({commandname : "step",
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success : false,
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stringResult : ""});
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}
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}
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textCommandProcessor.continue = function (str, frame, script) {
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if (frame) {
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frame.onStep = undefined;
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dbg.breakLine = 0;
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}
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stop = true;
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_unlockVM();
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return ({commandname : "continue",
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success : true,
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stringResult : ""});
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}
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textCommandProcessor.deval = function (str, frame, script) {
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// debugger eval
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var md = str.match(/^deval\s+(.+)/);
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if (md[1]) {
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try {
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var devalReturn = eval(md[1]);
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if (devalReturn) {
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var stringreport = debugObject(devalReturn, true);
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return ({commandname : "deval",
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success : true,
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stringResult : stringreport});
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}
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} catch (e) {
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return ({commandname : "deval",
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success : false,
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stringResult : "exception:\n" + e.message});
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}
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} else {
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return ({commandname : "deval",
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success : false,
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stringResult : "could not parse script to evaluate"});
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}
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}
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textCommandProcessor.eval = function (str, frame, script) {
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if (!frame) {
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return ({commandname : "eval",
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success : false,
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stringResult : "no frame to eval in"});
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}
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var stringToEval = str.substring(4);
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if (stringToEval) {
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try {
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var evalResult = frame['eval']("JSON.stringify(eval(" + stringToEval + "));");
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if (evalResult && evalResult['return']) {
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var stringreport = evalResult['return'];
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// var stringreport = debugObject(evalResult['return']);
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return ({commandname : "eval",
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success : true,
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stringResult : stringreport});
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} else if (evalResult && evalResult['throw']) {
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return ({commandname : "eval",
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success : false,
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stringResult : "got exception: " + evalResult['throw'].message});
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} else {
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return ({commandname : "eval",
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success : false,
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stringResult : "invalid return from eval"});
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}
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} catch (e) {
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dbg.log("exception = " + e);
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return ({commandname : "eval",
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success : false,
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stringResult : "Exception : " + e});
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}
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}
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}
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textCommandProcessor.line = function (str, frame, script) {
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if (frame) {
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try {
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return ({commandname : "line",
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success : true,
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stringResult : script.getOffsetLine(frame.offset)});
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} catch (e) {
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return ({commandname : "line",
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success : false,
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stringResult : "exception " + e});
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}
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}
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return ({commandname : "line",
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success : false,
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// probably entering script
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stringResult : "NOLINE"});
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}
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textCommandProcessor.backtrace = function (str, frame, script) {
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if (!frame) {
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return ({commandname : "backtrace",
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success : false,
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stringResult : "no valid frame"});
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}
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var result = "";
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var cur = frame,
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stack = [cur.script.url + ":" + cur.script.getOffsetLine(cur.offset)];
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while ((cur = cur.older)) {
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stack.push(cur.script.url + ":" + cur.script.getOffsetLine(cur.offset));
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}
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result += stack.join("\n");
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return ({commandname : "backtrace",
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success : true,
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stringResult : result});
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}
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textCommandProcessor.uiresponse = function (str) {
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var subcommandstring = (str.substring("uiresponse".length)).replace(/\s+/g, '');
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var response = "";
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switch (subcommandstring) {
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case "json":
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dbg.responder = jsonResponder;
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response += "DEBUGGER UI : responding with json messages";
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break;
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case "plaintext":
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dbg.responder = textResponder;
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response += "DEBUGGER UI : responding with plaintext messages";
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break;
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}
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// note : we return an empty string
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// dbg.log(response);
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return ({commandname : "uiresponse",
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success : true,
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stringResult : ""});
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}
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textCommandProcessor.help = function () {
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_printHelp();
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return ({commandname : "help",
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success : true,
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stringResult : ""});
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}
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textCommandProcessor.getCommandProcessor = function (str) {
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// break
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var md = str.match(/[a-z]*/);
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if (!md) {
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return null;
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}
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switch (md[0]) {
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case "b" :
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case "break" :
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return textCommandProcessor.break;
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case "info" :
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return textCommandProcessor.info;
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case "clear" :
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return textCommandProcessor.clear;
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case "scripts" :
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return textCommandProcessor.scripts;
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case "s" :
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case "step" :
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return textCommandProcessor.step;
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case "c" :
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case "continue" :
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return textCommandProcessor.continue;
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case "deval" :
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return textCommandProcessor.deval;
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case "eval" :
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return textCommandProcessor.eval;
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case "line" :
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return textCommandProcessor.line;
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case "bt" :
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return textCommandProcessor.backtrace;
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case "uiresponse" :
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return textCommandProcessor.uiresponse;
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case "help" :
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return textCommandProcessor.help;
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default :
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return null;
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}
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}
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// JSON output
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var jsonResponder = {};
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jsonResponder.write = function (str) {
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_bufferWrite(str);
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_bufferWrite("\n");
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_bufferWrite(String.fromCharCode(23));
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}
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jsonResponder.onBreakpoint = function (filename, linenumber) {
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var response = {"from" : "server",
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"why" : "onBreakpoint",
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"data" : {"jsfilename" : filename,
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"linenumber" : linenumber}};
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this.write(JSON.stringify(response));
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}
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jsonResponder.onStep = function (filename, linenumber) {
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var response = {"from" : "server",
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"why" : "onStep",
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"data" : {"jsfilename" : filename,
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"linenumber" : linenumber}};
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this.write(JSON.stringify(response));
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}
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jsonResponder.commandResponse = function (commandresult) {
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var response = {"from" : "server",
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"why" : "commandresponse",
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"data" : commandresult};
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this.write(JSON.stringify(response));
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}
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jsonResponder.commandNotFound = function () {
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// do nothing
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}
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// Plain Old Text output
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var textResponder = {};
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textResponder.write = function (str) {
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_bufferWrite(str);
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_bufferWrite("\n");
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_bufferWrite(String.fromCharCode(23));
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}
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textResponder.onBreakpoint = function (filename, linenumber) {
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var shortFilename = filename.substring(filename.lastIndexOf("/") + 1);
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var response = "Breakpoint hit at " + shortFilename + " line number : " + linenumber;
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this.write(response);
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}
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textResponder.onStep = function (filename, linenumber) {
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var shortFilename = filename.substring(filename.lastIndexOf("/") + 1);
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var response = "Stopped at " + shortFilename + " line number : " + linenumber;
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this.write(response);
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}
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textResponder.commandResponse = function (commandresult) {
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var response = "";
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try {
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switch (commandresult.commandname) {
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case "break" :
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if (!commandresult.success) {
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response += "ERROR : " + commandresult.stringResult;
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}
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break;
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case "info" :
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if (!commandresult.success) {
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response += "ERROR : " + commandresult.stringResult;
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}
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break;
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case "clear" :
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break;
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case "scripts" :
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if (true === commandresult.success) {
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response += commandresult.stringResult;
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}
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break;
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case "step" :
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if (!commandresult.success) {
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response += "ERROR : step failed " + commandresult.stringResult;
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}
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break;
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case "continue" :
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if (!commandresult.success) {
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response += "ERROR : continue failed " + commandresult.stringResult;
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}
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break;
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case "deval" :
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if (true === commandresult.success) {
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response += commandresult.stringResult;
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} else {
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response += "ERROR : deval failed " + commandresult.stringResult;
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}
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break;
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case "eval" :
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if (true === commandresult.success) {
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response += commandresult.stringResult;
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} else {
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response += "ERROR : eval failed " + commandresult.stringResult;
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}
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break;
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case "line" :
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if (true === commandresult.success) {
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response += commandresult.stringResult;
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} else {
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response += "ERROR : " + commandresult.stringResult;
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}
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break;
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case "backtrace" :
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if (true === commandresult.success) {
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response += commandresult.stringResult;
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} else {
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response += "ERROR : " + commandresult.stringResult;
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}
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break;
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case "help" :
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break;
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}
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} catch (e) {
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response += "\nException logging response " + e;
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}
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this.write(response);
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}
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textResponder.commandNotFound = function () {
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_printCommandNotFound();
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}
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var breakpointHandler = {
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hit: function (frame) {
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try {
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dbg.responder.onBreakpoint(frame.script.url, frame.script.getOffsetLine(frame.offset));
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} catch (e) {
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dbg.log("exception " + e);
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}
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var script = frame.script;
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_lockVM(frame, frame.script);
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}
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};
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var stepFunction = function (frame, script) {
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if (dbg.breakLine > 0) {
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var curLine = script.getOffsetLine(frame.offset);
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if (curLine < dbg.breakLine) {
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return;
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} else {
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try {
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dbg.responder.onStep(frame.script.url, frame.script.getOffsetLine(frame.offset));
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} catch (e) {
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dbg.log("exception " + e);
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}
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_lockVM(frame, script);
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// dbg.breakLine = 0;
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// frame.onStep = undefined;
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}
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} else {
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dbg.log("invalid state onStep");
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}
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};
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var debugObject = function (r, isNormal) {
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var stringres = "";
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try {
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stringres += "* " + (typeof r) + "\n";
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if (typeof r != "object") {
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stringres += "~> " + r + "\n";
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} else {
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var props;
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if (isNormal) {
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props = Object.keys(r);
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} else {
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props = r.getOwnPropertyNames();
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}
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for (k in props) {
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var desc = r.getOwnPropertyDescriptor(props[k]);
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stringres += "~> " + props[k] + " = ";
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if (desc.value) {
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stringres += "" + desc.value;
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} else if (desc.get) {
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stringres += "" + desc.get();
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} else {
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stringres += "undefined (no value or getter)";
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}
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stringres += "\n";
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}
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}
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return stringres;
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} catch (e) {
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return ("Exception when accessing object properties = " + e);
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}
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}
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dbg.breakLine = 0;
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this.processInput = function (inputstr, frame, script) {
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var command_func;
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var command_return;
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var commands_array = [];
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var _command;
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var i;
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|
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if (!inputstr) {
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return;
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}
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// remove Carriage Return's
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inputstr = inputstr.replace(/\r+/, "");
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// split into an array using Line Feed as the delimiter
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commands_array = inputstr.split("\n");
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// trace the commands received
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// dbg.log("received " + commands_array.length + " commands:");
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// for (i = 0; i < commands_array.length; i++) {
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// if (i in commands_array) {
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// dbg.log("~~~ commandstring =" + commands_array[i]);
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// dbg.log(" commandstring.length = " + commands_array[i].length);
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// }
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// }
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|
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for (i = 0; i < commands_array.length; i++) {
|
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if (i in commands_array) {
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_command = commands_array[i];
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|
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if (_command === "") {
|
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// dbg.log("Empty input. Ignoring.");
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} else {
|
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// dbg.log(_command);
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command_func = dbg.getCommandProcessor(_command);
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|
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if (!command_func) {
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dbg.log("did not find a command processor!");
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dbg.responder.commandNotFound();
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} else {
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try {
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command_return = command_func(_command, frame, script);
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if (true === command_return.success) {
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dbg.responder.commandResponse(command_return);
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} else {
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dbg.log("command failed. return value = " + command_return.stringResult);
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dbg.responder.commandResponse(command_return);
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}
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|
} catch (e) {
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dbg.log("Exception in command processing. e =\n" + e + "\n");
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var _output = {success : false,
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commandname : command_func.name,
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stringResult : e};
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dbg.responder.commandResponse(_output);
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}
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}
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}
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}
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}
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};
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|
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_printCommandNotFound = function() {
|
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var str = "ERROR : command not found!\n";
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_bufferWrite(str);
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};
|
|
|
|
_printHelp = function() {
|
|
var help = "break filename:numer\tAdds a breakpoint at a given filename and line number\n" +
|
|
"clear\tClear all breakpoints\n" +
|
|
"c / continue\tContinues the execution\n" +
|
|
"s / step\tStep\n" +
|
|
"bt\tBacktrace\n" +
|
|
"scripts\tShow the scripts\n" +
|
|
"line\tShows current line\n" +
|
|
"eval js_command\tEvaluates JS code\n" +
|
|
"deval js_command\tEvaluates JS Debugger command\n" +
|
|
"uiresponse [json|plaintext] Switch between JSON and plaintext output from the debugger\n";
|
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_bufferWrite(help);
|
|
};
|
|
|
|
dbg.scripts = [];
|
|
|
|
dbg.onNewScript = function (script) {
|
|
// skip if the url is this script
|
|
var last = script.url.split("/").pop();
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|
|
|
var children = script.getChildScripts(),
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|
arr = [script].concat(children);
|
|
/**
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* just dumping all the offsets from the scripts
|
|
for (var i in arr) {
|
|
dbg.log("script: " + arr[i].url);
|
|
for (var start=arr[i].startLine, j=start; j < start+arr[i].lineCount; j++) {
|
|
var offsets = arr[i].getLineOffsets(j);
|
|
dbg.log(" off: " + offsets.join(",") + "; line: " + j);
|
|
}
|
|
}
|
|
*/
|
|
dbg.scripts[last] = arr;
|
|
};
|
|
|
|
dbg.onError = function (frame, report) {
|
|
if (dbg.socket && report) {
|
|
_socketWrite(dbg.socket, "!! exception @ " + report.file + ":" + report.line);
|
|
}
|
|
dbg.log("!! exception");
|
|
};
|
|
|
|
this._prepareDebugger = function (global) {
|
|
var tmp = new Debugger(global);
|
|
tmp.onNewScript = dbg.onNewScript;
|
|
tmp.onDebuggerStatement = dbg.onDebuggerStatement;
|
|
tmp.onError = dbg.onError;
|
|
dbg.dbg = tmp;
|
|
|
|
// use the text command processor at startup
|
|
dbg.getCommandProcessor = textCommandProcessor.getCommandProcessor;
|
|
|
|
// use the text responder at startup
|
|
dbg.responder = textResponder;
|
|
};
|
|
|
|
this._startDebugger = function (global, files, startFunc) {
|
|
// dbg.log("[DBG] starting debug session");
|
|
for (var i in files) {
|
|
try {
|
|
global['eval']("require('" + files[i] + "');");
|
|
} catch (e) {
|
|
dbg.log("[DBG] error evaluating file: " + files[i]);
|
|
}
|
|
}
|
|
// dbg.log("[DBG] all files required");
|
|
if (startFunc) {
|
|
// dbg.log("executing start func: " + startFunc);
|
|
global['eval'](startFunc);
|
|
}
|
|
// beginDebug();
|
|
}
|