Upgrade V8 to version 4.9.385.28
https://chromium.googlesource.com/v8/v8/+/4.9.385.28
FPIIM-449
Change-Id: I4b2e74289d4bf3667f2f3dc8aa2e541f63e26eb4
diff --git a/src/d8.js b/src/d8.js
index 2b927af..27a0bc3 100644
--- a/src/d8.js
+++ b/src/d8.js
@@ -4,1972 +4,32 @@
"use strict";
-String.prototype.startsWith = function (str) {
- if (str.length > this.length) {
- return false;
- }
- return this.substr(0, str.length) == str;
-};
-
-function log10(num) {
- return Math.log(num)/Math.log(10);
-}
-
-function ToInspectableObject(obj) {
- if (!obj && typeof obj === 'object') {
- return UNDEFINED;
- } else {
- return Object(obj);
- }
-}
-
-function GetCompletions(global, last, full) {
- var full_tokens = full.split();
- full = full_tokens.pop();
- var parts = full.split('.');
- parts.pop();
- var current = global;
- for (var i = 0; i < parts.length; i++) {
- var part = parts[i];
- var next = current[part];
- if (!next) {
- return [];
- }
- current = next;
- }
- var result = [];
- current = ToInspectableObject(current);
- while (typeof current !== 'undefined') {
- var mirror = new $debug.ObjectMirror(current);
- var properties = mirror.properties();
- for (var i = 0; i < properties.length; i++) {
- var name = properties[i].name();
- if (typeof name === 'string' && name.startsWith(last)) {
- result.push(name);
- }
- }
- current = ToInspectableObject(Object.getPrototypeOf(current));
- }
- return result;
-}
-
-
-// Global object holding debugger related constants and state.
-var Debug = {};
-
-
-// Debug events which can occour in the V8 JavaScript engine. These originate
-// from the API include file v8-debug.h.
-Debug.DebugEvent = { Break: 1,
- Exception: 2,
- NewFunction: 3,
- BeforeCompile: 4,
- AfterCompile: 5 };
-
-
-// The different types of scripts matching enum ScriptType in objects.h.
-Debug.ScriptType = { Native: 0,
- Extension: 1,
- Normal: 2 };
-
-
-// The different types of script compilations matching enum
-// Script::CompilationType in objects.h.
-Debug.ScriptCompilationType = { Host: 0,
- Eval: 1,
- JSON: 2 };
-
-
-// The different types of scopes matching constants runtime.cc.
-Debug.ScopeType = { Global: 0,
- Local: 1,
- With: 2,
- Closure: 3,
- Catch: 4,
- Block: 5 };
-
-
-// Current debug state.
-var kNoFrame = -1;
-Debug.State = {
- currentFrame: kNoFrame,
- displaySourceStartLine: -1,
- displaySourceEndLine: -1,
- currentSourceLine: -1
-};
-var trace_compile = false; // Tracing all compile events?
-var trace_debug_json = false; // Tracing all debug json packets?
-var last_cmd = '';
-var repeat_cmd_line = '';
-var is_running = true;
-// Global variable used to store whether a handle was requested.
-var lookup_handle = null;
-
-// Copied from debug-delay.js. This is needed below:
-function ScriptTypeFlag(type) {
- return (1 << type);
-}
-
-
-// Process a debugger JSON message into a display text and a running status.
-// This function returns an object with properties "text" and "running" holding
-// this information.
-function DebugMessageDetails(message) {
- if (trace_debug_json) {
- print("received: '" + message + "'");
- }
- // Convert the JSON string to an object.
- var response = new ProtocolPackage(message);
- is_running = response.running();
-
- if (response.type() == 'event') {
- return DebugEventDetails(response);
- } else {
- return DebugResponseDetails(response);
- }
-}
-
-function DebugEventDetails(response) {
- var details = {text:'', running:false};
-
- // Get the running state.
- details.running = response.running();
-
- var body = response.body();
- var result = '';
- switch (response.event()) {
- case 'break':
- if (body.breakpoints) {
- result += 'breakpoint';
- if (body.breakpoints.length > 1) {
- result += 's';
- }
- result += ' #';
- for (var i = 0; i < body.breakpoints.length; i++) {
- if (i > 0) {
- result += ', #';
- }
- result += body.breakpoints[i];
- }
- } else {
- result += 'break';
- }
- result += ' in ';
- result += body.invocationText;
- result += ', ';
- result += SourceInfo(body);
- result += '\n';
- result += SourceUnderline(body.sourceLineText, body.sourceColumn);
- Debug.State.currentSourceLine = body.sourceLine;
- Debug.State.displaySourceStartLine = -1;
- Debug.State.displaySourceEndLine = -1;
- Debug.State.currentFrame = 0;
- details.text = result;
- break;
-
- case 'exception':
- if (body.uncaught) {
- result += 'Uncaught: ';
- } else {
- result += 'Exception: ';
- }
- result += '"';
- result += body.exception.text;
- result += '"';
- if (body.sourceLine >= 0) {
- result += ', ';
- result += SourceInfo(body);
- result += '\n';
- result += SourceUnderline(body.sourceLineText, body.sourceColumn);
- Debug.State.currentSourceLine = body.sourceLine;
- Debug.State.displaySourceStartLine = -1;
- Debug.State.displaySourceEndLine = -1;
- Debug.State.currentFrame = 0;
- } else {
- result += ' (empty stack)';
- Debug.State.currentSourceLine = -1;
- Debug.State.displaySourceStartLine = -1;
- Debug.State.displaySourceEndLine = -1;
- Debug.State.currentFrame = kNoFrame;
- }
- details.text = result;
- break;
-
- case 'afterCompile':
- if (trace_compile) {
- result = 'Source ' + body.script.name + ' compiled:\n';
- var source = body.script.source;
- if (!(source[source.length - 1] == '\n')) {
- result += source;
- } else {
- result += source.substring(0, source.length - 1);
- }
- }
- details.text = result;
- break;
-
- default:
- details.text = 'Unknown debug event ' + response.event();
- }
-
- return details;
-}
-
-
-function SourceInfo(body) {
- var result = '';
-
- if (body.script) {
- if (body.script.name) {
- result += body.script.name;
- } else {
- result += '[unnamed]';
- }
- }
- result += ' line ';
- result += body.sourceLine + 1;
- result += ' column ';
- result += body.sourceColumn + 1;
-
- return result;
-}
-
-
-function SourceUnderline(source_text, position) {
- if (!source_text) {
- return;
- }
-
- // Create an underline with a caret pointing to the source position. If the
- // source contains a tab character the underline will have a tab character in
- // the same place otherwise the underline will have a space character.
- var underline = '';
- for (var i = 0; i < position; i++) {
- if (source_text[i] == '\t') {
- underline += '\t';
- } else {
- underline += ' ';
- }
- }
- underline += '^';
-
- // Return the source line text with the underline beneath.
- return source_text + '\n' + underline;
-}
-
-
-// Converts a text command to a JSON request.
-function DebugCommandToJSONRequest(cmd_line) {
- var result = new DebugRequest(cmd_line).JSONRequest();
- if (trace_debug_json && result) {
- print("sending: '" + result + "'");
- }
- return result;
-}
-
-
-function DebugRequest(cmd_line) {
- // If the very first character is a { assume that a JSON request have been
- // entered as a command. Converting that to a JSON request is trivial.
- if (cmd_line && cmd_line.length > 0 && cmd_line.charAt(0) == '{') {
- this.request_ = cmd_line;
- return;
- }
-
- // Check for a simple carriage return to repeat the last command:
- var is_repeating = false;
- if (cmd_line == '\n') {
- if (is_running) {
- cmd_line = 'break'; // Not in debugger mode, break with a frame request.
- } else {
- cmd_line = repeat_cmd_line; // use command to repeat.
- is_repeating = true;
- }
- }
- if (!is_running) { // Only save the command if in debugger mode.
- repeat_cmd_line = cmd_line; // save last command.
- }
-
- // Trim string for leading and trailing whitespace.
- cmd_line = cmd_line.replace(/^\s+|\s+$/g, '');
-
- // Find the command.
- var pos = cmd_line.indexOf(' ');
- var cmd;
- var args;
- if (pos == -1) {
- cmd = cmd_line;
- args = '';
- } else {
- cmd = cmd_line.slice(0, pos);
- args = cmd_line.slice(pos).replace(/^\s+|\s+$/g, '');
- }
-
- if ((cmd === undefined) || !cmd) {
- this.request_ = UNDEFINED;
- return;
- }
-
- last_cmd = cmd;
-
- // Switch on command.
- switch (cmd) {
- case 'continue':
- case 'c':
- this.request_ = this.continueCommandToJSONRequest_(args);
- break;
-
- case 'step':
- case 's':
- this.request_ = this.stepCommandToJSONRequest_(args, 'in');
- break;
-
- case 'stepi':
- case 'si':
- this.request_ = this.stepCommandToJSONRequest_(args, 'min');
- break;
-
- case 'next':
- case 'n':
- this.request_ = this.stepCommandToJSONRequest_(args, 'next');
- break;
-
- case 'finish':
- case 'fin':
- this.request_ = this.stepCommandToJSONRequest_(args, 'out');
- break;
-
- case 'backtrace':
- case 'bt':
- this.request_ = this.backtraceCommandToJSONRequest_(args);
- break;
-
- case 'frame':
- case 'f':
- this.request_ = this.frameCommandToJSONRequest_(args);
- break;
-
- case 'scopes':
- this.request_ = this.scopesCommandToJSONRequest_(args);
- break;
-
- case 'scope':
- this.request_ = this.scopeCommandToJSONRequest_(args);
- break;
-
- case 'disconnect':
- case 'exit':
- case 'quit':
- this.request_ = this.disconnectCommandToJSONRequest_(args);
- break;
-
- case 'up':
- this.request_ =
- this.frameCommandToJSONRequest_('' +
- (Debug.State.currentFrame + 1));
- break;
-
- case 'down':
- case 'do':
- this.request_ =
- this.frameCommandToJSONRequest_('' +
- (Debug.State.currentFrame - 1));
- break;
-
- case 'set':
- case 'print':
- case 'p':
- this.request_ = this.printCommandToJSONRequest_(args);
- break;
-
- case 'dir':
- this.request_ = this.dirCommandToJSONRequest_(args);
- break;
-
- case 'references':
- this.request_ = this.referencesCommandToJSONRequest_(args);
- break;
-
- case 'instances':
- this.request_ = this.instancesCommandToJSONRequest_(args);
- break;
-
- case 'list':
- case 'l':
- this.request_ = this.listCommandToJSONRequest_(args);
- break;
- case 'source':
- this.request_ = this.sourceCommandToJSONRequest_(args);
- break;
-
- case 'scripts':
- case 'script':
- case 'scr':
- this.request_ = this.scriptsCommandToJSONRequest_(args);
- break;
-
- case 'break':
- case 'b':
- this.request_ = this.breakCommandToJSONRequest_(args);
- break;
-
- case 'breakpoints':
- case 'bb':
- this.request_ = this.breakpointsCommandToJSONRequest_(args);
- break;
-
- case 'clear':
- case 'delete':
- case 'd':
- this.request_ = this.clearCommandToJSONRequest_(args);
- break;
-
- case 'threads':
- this.request_ = this.threadsCommandToJSONRequest_(args);
- break;
-
- case 'cond':
- this.request_ = this.changeBreakpointCommandToJSONRequest_(args, 'cond');
- break;
-
- case 'enable':
- case 'en':
- this.request_ =
- this.changeBreakpointCommandToJSONRequest_(args, 'enable');
- break;
-
- case 'disable':
- case 'dis':
- this.request_ =
- this.changeBreakpointCommandToJSONRequest_(args, 'disable');
- break;
-
- case 'ignore':
- this.request_ =
- this.changeBreakpointCommandToJSONRequest_(args, 'ignore');
- break;
-
- case 'info':
- case 'inf':
- this.request_ = this.infoCommandToJSONRequest_(args);
- break;
-
- case 'flags':
- this.request_ = this.v8FlagsToJSONRequest_(args);
- break;
-
- case 'gc':
- this.request_ = this.gcToJSONRequest_(args);
- break;
-
- case 'trace':
- case 'tr':
- // Return undefined to indicate command handled internally (no JSON).
- this.request_ = UNDEFINED;
- this.traceCommand_(args);
- break;
-
- case 'help':
- case '?':
- this.helpCommand_(args);
- // Return undefined to indicate command handled internally (no JSON).
- this.request_ = UNDEFINED;
- break;
-
- default:
- throw new Error('Unknown command "' + cmd + '"');
- }
-}
-
-DebugRequest.prototype.JSONRequest = function() {
- return this.request_;
-};
-
-
-function RequestPacket(command) {
- this.seq = 0;
- this.type = 'request';
- this.command = command;
-}
-
-
-RequestPacket.prototype.toJSONProtocol = function() {
- // Encode the protocol header.
- var json = '{';
- json += '"seq":' + this.seq;
- json += ',"type":"' + this.type + '"';
- if (this.command) {
- json += ',"command":' + JSON.stringify(this.command);
- }
- if (this.arguments) {
- json += ',"arguments":';
- // Encode the arguments part.
- if (this.arguments.toJSONProtocol) {
- json += this.arguments.toJSONProtocol();
- } else {
- json += JSON.stringify(this.arguments);
- }
- }
- json += '}';
- return json;
-};
-
-
-DebugRequest.prototype.createRequest = function(command) {
- return new RequestPacket(command);
-};
-
-
-// Create a JSON request for the evaluation command.
-DebugRequest.prototype.makeEvaluateJSONRequest_ = function(expression) {
- lookup_handle = null;
-
- // Check if the expression is a handle id in the form #<handle>#.
- var handle_match = expression.match(/^#([0-9]*)#$/);
- if (handle_match) {
- // Remember the handle requested in a global variable.
- lookup_handle = parseInt(handle_match[1]);
- // Build a lookup request.
- var request = this.createRequest('lookup');
- request.arguments = {};
- request.arguments.handles = [ lookup_handle ];
- return request.toJSONProtocol();
- } else {
- // Build an evaluate request.
- var request = this.createRequest('evaluate');
- request.arguments = {};
- request.arguments.expression = expression;
- // Request a global evaluation if there is no current frame.
- if (Debug.State.currentFrame == kNoFrame) {
- request.arguments.global = true;
- }
- return request.toJSONProtocol();
- }
-};
-
-
-// Create a JSON request for the references/instances command.
-DebugRequest.prototype.makeReferencesJSONRequest_ = function(handle, type) {
- // Build a references request.
- var handle_match = handle.match(/^#([0-9]*)#$/);
- if (handle_match) {
- var request = this.createRequest('references');
- request.arguments = {};
- request.arguments.type = type;
- request.arguments.handle = parseInt(handle_match[1]);
- return request.toJSONProtocol();
- } else {
- throw new Error('Invalid object id.');
- }
-};
-
-
-// Create a JSON request for the continue command.
-DebugRequest.prototype.continueCommandToJSONRequest_ = function(args) {
- var request = this.createRequest('continue');
- return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the step command.
-DebugRequest.prototype.stepCommandToJSONRequest_ = function(args, type) {
- // Requesting a step is through the continue command with additional
- // arguments.
- var request = this.createRequest('continue');
- request.arguments = {};
-
- // Process arguments if any.
-
- // Only process args if the command is 'step' which is indicated by type being
- // set to 'in'. For all other commands, ignore the args.
- if (args && args.length > 0) {
- args = args.split(/\s+/g);
-
- if (args.length > 2) {
- throw new Error('Invalid step arguments.');
- }
-
- if (args.length > 0) {
- // Check if we have a gdb stype step command. If so, the 1st arg would
- // be the step count. If it's not a number, then assume that we're
- // parsing for the legacy v8 step command.
- var stepcount = Number(args[0]);
- if (stepcount == Number.NaN) {
- // No step count at arg 1. Process as legacy d8 step command:
- if (args.length == 2) {
- var stepcount = parseInt(args[1]);
- if (isNaN(stepcount) || stepcount <= 0) {
- throw new Error('Invalid step count argument "' + args[0] + '".');
- }
- request.arguments.stepcount = stepcount;
- }
-
- // Get the step action.
- switch (args[0]) {
- case 'in':
- case 'i':
- request.arguments.stepaction = 'in';
- break;
-
- case 'min':
- case 'm':
- request.arguments.stepaction = 'min';
- break;
-
- case 'next':
- case 'n':
- request.arguments.stepaction = 'next';
- break;
-
- case 'out':
- case 'o':
- request.arguments.stepaction = 'out';
- break;
-
- default:
- throw new Error('Invalid step argument "' + args[0] + '".');
- }
-
- } else {
- // gdb style step commands:
- request.arguments.stepaction = type;
- request.arguments.stepcount = stepcount;
- }
- }
- } else {
- // Default is step of the specified type.
- request.arguments.stepaction = type;
- }
-
- return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the backtrace command.
-DebugRequest.prototype.backtraceCommandToJSONRequest_ = function(args) {
- // Build a backtrace request from the text command.
- var request = this.createRequest('backtrace');
-
- // Default is to show top 10 frames.
- request.arguments = {};
- request.arguments.fromFrame = 0;
- request.arguments.toFrame = 10;
-
- args = args.split(/\s*[ ]+\s*/g);
- if (args.length == 1 && args[0].length > 0) {
- var frameCount = parseInt(args[0]);
- if (frameCount > 0) {
- // Show top frames.
- request.arguments.fromFrame = 0;
- request.arguments.toFrame = frameCount;
- } else {
- // Show bottom frames.
- request.arguments.fromFrame = 0;
- request.arguments.toFrame = -frameCount;
- request.arguments.bottom = true;
- }
- } else if (args.length == 2) {
- var fromFrame = parseInt(args[0]);
- var toFrame = parseInt(args[1]);
- if (isNaN(fromFrame) || fromFrame < 0) {
- throw new Error('Invalid start frame argument "' + args[0] + '".');
- }
- if (isNaN(toFrame) || toFrame < 0) {
- throw new Error('Invalid end frame argument "' + args[1] + '".');
- }
- if (fromFrame > toFrame) {
- throw new Error('Invalid arguments start frame cannot be larger ' +
- 'than end frame.');
- }
- // Show frame range.
- request.arguments.fromFrame = fromFrame;
- request.arguments.toFrame = toFrame + 1;
- } else if (args.length > 2) {
- throw new Error('Invalid backtrace arguments.');
- }
-
- return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the frame command.
-DebugRequest.prototype.frameCommandToJSONRequest_ = function(args) {
- // Build a frame request from the text command.
- var request = this.createRequest('frame');
- args = args.split(/\s*[ ]+\s*/g);
- if (args.length > 0 && args[0].length > 0) {
- request.arguments = {};
- request.arguments.number = args[0];
- }
- return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the scopes command.
-DebugRequest.prototype.scopesCommandToJSONRequest_ = function(args) {
- // Build a scopes request from the text command.
- var request = this.createRequest('scopes');
- return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the scope command.
-DebugRequest.prototype.scopeCommandToJSONRequest_ = function(args) {
- // Build a scope request from the text command.
- var request = this.createRequest('scope');
- args = args.split(/\s*[ ]+\s*/g);
- if (args.length > 0 && args[0].length > 0) {
- request.arguments = {};
- request.arguments.number = args[0];
- }
- return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the print command.
-DebugRequest.prototype.printCommandToJSONRequest_ = function(args) {
- // Build an evaluate request from the text command.
- if (args.length == 0) {
- throw new Error('Missing expression.');
- }
- return this.makeEvaluateJSONRequest_(args);
-};
-
-
-// Create a JSON request for the dir command.
-DebugRequest.prototype.dirCommandToJSONRequest_ = function(args) {
- // Build an evaluate request from the text command.
- if (args.length == 0) {
- throw new Error('Missing expression.');
- }
- return this.makeEvaluateJSONRequest_(args);
-};
-
-
-// Create a JSON request for the references command.
-DebugRequest.prototype.referencesCommandToJSONRequest_ = function(args) {
- // Build an evaluate request from the text command.
- if (args.length == 0) {
- throw new Error('Missing object id.');
- }
-
- return this.makeReferencesJSONRequest_(args, 'referencedBy');
-};
-
-
-// Create a JSON request for the instances command.
-DebugRequest.prototype.instancesCommandToJSONRequest_ = function(args) {
- // Build an evaluate request from the text command.
- if (args.length == 0) {
- throw new Error('Missing object id.');
- }
-
- // Build a references request.
- return this.makeReferencesJSONRequest_(args, 'constructedBy');
-};
-
-
-// Create a JSON request for the list command.
-DebugRequest.prototype.listCommandToJSONRequest_ = function(args) {
-
- // Default is ten lines starting five lines before the current location.
- if (Debug.State.displaySourceEndLine == -1) {
- // If we list forwards, we will start listing after the last source end
- // line. Set it to start from 5 lines before the current location.
- Debug.State.displaySourceEndLine = Debug.State.currentSourceLine - 5;
- // If we list backwards, we will start listing backwards from the last
- // source start line. Set it to start from 1 lines before the current
- // location.
- Debug.State.displaySourceStartLine = Debug.State.currentSourceLine + 1;
- }
-
- var from = Debug.State.displaySourceEndLine + 1;
- var lines = 10;
-
- // Parse the arguments.
- args = args.split(/\s*,\s*/g);
- if (args == '') {
- } else if ((args.length == 1) && (args[0] == '-')) {
- from = Debug.State.displaySourceStartLine - lines;
- } else if (args.length == 2) {
- from = parseInt(args[0]);
- lines = parseInt(args[1]) - from + 1; // inclusive of the ending line.
- } else {
- throw new Error('Invalid list arguments.');
- }
- Debug.State.displaySourceStartLine = from;
- Debug.State.displaySourceEndLine = from + lines - 1;
- var sourceArgs = '' + from + ' ' + lines;
- return this.sourceCommandToJSONRequest_(sourceArgs);
-};
-
-
-// Create a JSON request for the source command.
-DebugRequest.prototype.sourceCommandToJSONRequest_ = function(args) {
- // Build a evaluate request from the text command.
- var request = this.createRequest('source');
-
- // Default is ten lines starting five lines before the current location.
- var from = Debug.State.currentSourceLine - 5;
- var lines = 10;
-
- // Parse the arguments.
- args = args.split(/\s*[ ]+\s*/g);
- if (args.length > 1 && args[0].length > 0 && args[1].length > 0) {
- from = parseInt(args[0]) - 1;
- lines = parseInt(args[1]);
- } else if (args.length > 0 && args[0].length > 0) {
- from = parseInt(args[0]) - 1;
- }
-
- if (from < 0) from = 0;
- if (lines < 0) lines = 10;
-
- // Request source arround current source location.
- request.arguments = {};
- request.arguments.fromLine = from;
- request.arguments.toLine = from + lines;
-
- return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the scripts command.
-DebugRequest.prototype.scriptsCommandToJSONRequest_ = function(args) {
- // Build a evaluate request from the text command.
- var request = this.createRequest('scripts');
-
- // Process arguments if any.
- if (args && args.length > 0) {
- args = args.split(/\s*[ ]+\s*/g);
-
- if (args.length > 1) {
- throw new Error('Invalid scripts arguments.');
- }
-
- request.arguments = {};
- switch (args[0]) {
- case 'natives':
- request.arguments.types = ScriptTypeFlag(Debug.ScriptType.Native);
- break;
-
- case 'extensions':
- request.arguments.types = ScriptTypeFlag(Debug.ScriptType.Extension);
- break;
-
- case 'all':
- request.arguments.types =
- ScriptTypeFlag(Debug.ScriptType.Normal) |
- ScriptTypeFlag(Debug.ScriptType.Native) |
- ScriptTypeFlag(Debug.ScriptType.Extension);
- break;
-
- default:
- // If the arg is not one of the know one aboves, then it must be a
- // filter used for filtering the results:
- request.arguments.filter = args[0];
- break;
- }
- }
-
- return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the break command.
-DebugRequest.prototype.breakCommandToJSONRequest_ = function(args) {
- // Build a evaluate request from the text command.
- // Process arguments if any.
- if (args && args.length > 0) {
- var target = args;
- var type = 'function';
- var line;
- var column;
- var condition;
- var pos;
-
- var request = this.createRequest('setbreakpoint');
-
- // Break the args into target spec and condition if appropriate.
-
- // Check for breakpoint condition.
- pos = args.indexOf(' ');
- if (pos > 0) {
- target = args.substring(0, pos);
- condition = args.substring(pos + 1, args.length);
- }
-
- // Check for script breakpoint (name:line[:column]). If no ':' in break
- // specification it is considered a function break point.
- pos = target.indexOf(':');
- if (pos > 0) {
- var tmp = target.substring(pos + 1, target.length);
- target = target.substring(0, pos);
- if (target[0] == '/' && target[target.length - 1] == '/') {
- type = 'scriptRegExp';
- target = target.substring(1, target.length - 1);
- } else {
- type = 'script';
- }
-
- // Check for both line and column.
- pos = tmp.indexOf(':');
- if (pos > 0) {
- column = parseInt(tmp.substring(pos + 1, tmp.length)) - 1;
- line = parseInt(tmp.substring(0, pos)) - 1;
- } else {
- line = parseInt(tmp) - 1;
- }
- } else if (target[0] == '#' && target[target.length - 1] == '#') {
- type = 'handle';
- target = target.substring(1, target.length - 1);
- } else {
- type = 'function';
- }
-
- request.arguments = {};
- request.arguments.type = type;
- request.arguments.target = target;
- request.arguments.line = line;
- request.arguments.column = column;
- request.arguments.condition = condition;
- } else {
- var request = this.createRequest('suspend');
- }
-
- return request.toJSONProtocol();
-};
-
-
-DebugRequest.prototype.breakpointsCommandToJSONRequest_ = function(args) {
- if (args && args.length > 0) {
- throw new Error('Unexpected arguments.');
- }
- var request = this.createRequest('listbreakpoints');
- return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the clear command.
-DebugRequest.prototype.clearCommandToJSONRequest_ = function(args) {
- // Build a evaluate request from the text command.
- var request = this.createRequest('clearbreakpoint');
-
- // Process arguments if any.
- if (args && args.length > 0) {
- request.arguments = {};
- request.arguments.breakpoint = parseInt(args);
- } else {
- throw new Error('Invalid break arguments.');
- }
-
- return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the change breakpoint command.
-DebugRequest.prototype.changeBreakpointCommandToJSONRequest_ =
- function(args, command) {
-
- var request;
-
- // Check for exception breaks first:
- // en[able] exc[eptions] [all|unc[aught]]
- // en[able] [all|unc[aught]] exc[eptions]
- // dis[able] exc[eptions] [all|unc[aught]]
- // dis[able] [all|unc[aught]] exc[eptions]
- if ((command == 'enable' || command == 'disable') &&
- args && args.length > 1) {
- var nextPos = args.indexOf(' ');
- var arg1 = (nextPos > 0) ? args.substring(0, nextPos) : args;
- var excType = null;
-
- // Check for:
- // en[able] exc[eptions] [all|unc[aught]]
- // dis[able] exc[eptions] [all|unc[aught]]
- if (arg1 == 'exc' || arg1 == 'exception' || arg1 == 'exceptions') {
-
- var arg2 = (nextPos > 0) ?
- args.substring(nextPos + 1, args.length) : 'all';
- if (!arg2) {
- arg2 = 'all'; // if unspecified, set for all.
- } else if (arg2 == 'unc') { // check for short cut.
- arg2 = 'uncaught';
- }
- excType = arg2;
-
- // Check for:
- // en[able] [all|unc[aught]] exc[eptions]
- // dis[able] [all|unc[aught]] exc[eptions]
- } else if (arg1 == 'all' || arg1 == 'unc' || arg1 == 'uncaught') {
-
- var arg2 = (nextPos > 0) ?
- args.substring(nextPos + 1, args.length) : null;
- if (arg2 == 'exc' || arg1 == 'exception' || arg1 == 'exceptions') {
- excType = arg1;
- if (excType == 'unc') {
- excType = 'uncaught';
- }
- }
- }
-
- // If we matched one of the command formats, then excType will be non-null:
- if (excType) {
- // Build a evaluate request from the text command.
- request = this.createRequest('setexceptionbreak');
-
- request.arguments = {};
- request.arguments.type = excType;
- request.arguments.enabled = (command == 'enable');
-
- return request.toJSONProtocol();
- }
- }
-
- // Build a evaluate request from the text command.
- request = this.createRequest('changebreakpoint');
-
- // Process arguments if any.
- if (args && args.length > 0) {
- request.arguments = {};
- var pos = args.indexOf(' ');
- var breakpointArg = args;
- var otherArgs;
- if (pos > 0) {
- breakpointArg = args.substring(0, pos);
- otherArgs = args.substring(pos + 1, args.length);
- }
-
- request.arguments.breakpoint = parseInt(breakpointArg);
-
- switch(command) {
- case 'cond':
- request.arguments.condition = otherArgs ? otherArgs : null;
- break;
- case 'enable':
- request.arguments.enabled = true;
- break;
- case 'disable':
- request.arguments.enabled = false;
- break;
- case 'ignore':
- request.arguments.ignoreCount = parseInt(otherArgs);
- break;
- default:
- throw new Error('Invalid arguments.');
- }
- } else {
- throw new Error('Invalid arguments.');
- }
-
- return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the disconnect command.
-DebugRequest.prototype.disconnectCommandToJSONRequest_ = function(args) {
- var request;
- request = this.createRequest('disconnect');
- return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the info command.
-DebugRequest.prototype.infoCommandToJSONRequest_ = function(args) {
- var request;
- if (args && (args == 'break' || args == 'br')) {
- // Build a evaluate request from the text command.
- request = this.createRequest('listbreakpoints');
- last_cmd = 'info break';
- } else if (args && (args == 'locals' || args == 'lo')) {
- // Build a evaluate request from the text command.
- request = this.createRequest('frame');
- last_cmd = 'info locals';
- } else if (args && (args == 'args' || args == 'ar')) {
- // Build a evaluate request from the text command.
- request = this.createRequest('frame');
- last_cmd = 'info args';
- } else {
- throw new Error('Invalid info arguments.');
- }
-
- return request.toJSONProtocol();
-};
-
-
-DebugRequest.prototype.v8FlagsToJSONRequest_ = function(args) {
- var request;
- request = this.createRequest('v8flags');
- request.arguments = {};
- request.arguments.flags = args;
- return request.toJSONProtocol();
-};
-
-
-DebugRequest.prototype.gcToJSONRequest_ = function(args) {
- var request;
- if (!args) {
- args = 'all';
- }
- var args = args.split(/\s+/g);
- var cmd = args[0];
-
- switch(cmd) {
- case 'all':
- case 'quick':
- case 'full':
- case 'young':
- case 'old':
- case 'compact':
- case 'sweep':
- case 'scavenge': {
- if (cmd == 'young') { cmd = 'quick'; }
- else if (cmd == 'old') { cmd = 'full'; }
-
- request = this.createRequest('gc');
- request.arguments = {};
- request.arguments.type = cmd;
- break;
- }
- // Else fall thru to the default case below to report the error.
- default:
- throw new Error('Missing arguments after ' + cmd + '.');
- }
- return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the threads command.
-DebugRequest.prototype.threadsCommandToJSONRequest_ = function(args) {
- // Build a threads request from the text command.
- var request = this.createRequest('threads');
- return request.toJSONProtocol();
-};
-
-
-// Handle the trace command.
-DebugRequest.prototype.traceCommand_ = function(args) {
- // Process arguments.
- if (args && args.length > 0) {
- if (args == 'compile') {
- trace_compile = !trace_compile;
- print('Tracing of compiled scripts ' + (trace_compile ? 'on' : 'off'));
- } else if (args === 'debug json' || args === 'json' || args === 'packets') {
- trace_debug_json = !trace_debug_json;
- print('Tracing of debug json packets ' +
- (trace_debug_json ? 'on' : 'off'));
- } else {
- throw new Error('Invalid trace arguments.');
- }
- } else {
- throw new Error('Invalid trace arguments.');
- }
-};
-
-// Handle the help command.
-DebugRequest.prototype.helpCommand_ = function(args) {
- // Help os quite simple.
- if (args && args.length > 0) {
- print('warning: arguments to \'help\' are ignored');
- }
-
- print('Note: <> denotes symbollic values to be replaced with real values.');
- print('Note: [] denotes optional parts of commands, or optional options / arguments.');
- print(' e.g. d[elete] - you get the same command if you type d or delete.');
- print('');
- print('[break] - break as soon as possible');
- print('b[reak] location [condition]');
- print(' - break on named function: location is a function name');
- print(' - break on function: location is #<id>#');
- print(' - break on script position: location is name:line[:column]');
- print('');
- print('clear <breakpoint #> - deletes the specified user defined breakpoint');
- print('d[elete] <breakpoint #> - deletes the specified user defined breakpoint');
- print('dis[able] <breakpoint #> - disables the specified user defined breakpoint');
- print('dis[able] exc[eptions] [[all] | unc[aught]]');
- print(' - disables breaking on exceptions');
- print('en[able] <breakpoint #> - enables the specified user defined breakpoint');
- print('en[able] exc[eptions] [[all] | unc[aught]]');
- print(' - enables breaking on exceptions');
- print('');
- print('b[ack]t[race] [n] | [-n] | [from to]');
- print(' - prints the stack back trace');
- print('f[rame] - prints info about the current frame context');
- print('f[rame] <frame #> - set context to specified frame #');
- print('scopes');
- print('scope <scope #>');
- print('');
- print('up - set context to caller of current frame');
- print('do[wn] - set context to callee of current frame');
- print('inf[o] br[eak] - prints info about breakpoints in use');
- print('inf[o] ar[gs] - prints info about arguments of the current function');
- print('inf[o] lo[cals] - prints info about locals in the current function');
- print('');
- print('step [in | next | out| min [step count]]');
- print('c[ontinue] - continue executing after a breakpoint');
- print('s[tep] [<N>] - step into the next N callees (default N is 1)');
- print('s[tep]i [<N>] - step into the next N callees (default N is 1)');
- print('n[ext] [<N>] - step over the next N callees (default N is 1)');
- print('fin[ish] [<N>] - step out of N frames (default N is 1)');
- print('');
- print('p[rint] <expression> - prints the result of the specified expression');
- print('dir <expression> - prints the object structure of the result');
- print('set <var> = <expression> - executes the specified statement');
- print('');
- print('l[ist] - list the source code around for the current pc');
- print('l[ist] [- | <start>,<end>] - list the specified range of source code');
- print('source [from line [num lines]]');
- print('scr[ipts] [native|extensions|all]');
- print('scr[ipts] [<filter text>] - list scripts with the specified text in its description');
- print('');
- print('gc - runs the garbage collector');
- print('');
- print('trace compile');
- // hidden command: trace debug json - toggles tracing of debug json packets
- print('');
- print('disconnect|exit|quit - disconnects and quits the debugger');
- print('help - prints this help information');
-};
-
-
-function formatHandleReference_(value) {
- if (value.handle() >= 0) {
- return '#' + value.handle() + '#';
- } else {
- return '#Transient#';
- }
-}
-
-
-function formatObject_(value, include_properties) {
- var result = '';
- result += formatHandleReference_(value);
- result += ', type: object';
- result += ', constructor ';
- var ctor = value.constructorFunctionValue();
- result += formatHandleReference_(ctor);
- result += ', __proto__ ';
- var proto = value.protoObjectValue();
- result += formatHandleReference_(proto);
- result += ', ';
- result += value.propertyCount();
- result += ' properties.';
- if (include_properties) {
- result += '\n';
- for (var i = 0; i < value.propertyCount(); i++) {
- result += ' ';
- result += value.propertyName(i);
- result += ': ';
- var property_value = value.propertyValue(i);
- if (property_value instanceof ProtocolReference) {
- result += '<no type>';
- } else {
- if (property_value && property_value.type()) {
- result += property_value.type();
- } else {
- result += '<no type>';
- }
- }
- result += ' ';
- result += formatHandleReference_(property_value);
- result += '\n';
- }
- }
- return result;
-}
-
-
-function formatScope_(scope) {
- var result = '';
- var index = scope.index;
- result += '#' + (index <= 9 ? '0' : '') + index;
- result += ' ';
- switch (scope.type) {
- case Debug.ScopeType.Global:
- result += 'Global, ';
- result += '#' + scope.object.ref + '#';
- break;
- case Debug.ScopeType.Local:
- result += 'Local';
- break;
- case Debug.ScopeType.With:
- result += 'With, ';
- result += '#' + scope.object.ref + '#';
- break;
- case Debug.ScopeType.Catch:
- result += 'Catch, ';
- result += '#' + scope.object.ref + '#';
- break;
- case Debug.ScopeType.Closure:
- result += 'Closure';
- break;
- default:
- result += 'UNKNOWN';
- }
- return result;
-}
-
-
-function refObjectToString_(protocolPackage, handle) {
- var value = protocolPackage.lookup(handle);
- var result = '';
- if (value.isString()) {
- result = '"' + value.value() + '"';
- } else if (value.isPrimitive()) {
- result = value.valueString();
- } else if (value.isObject()) {
- result += formatObject_(value, true);
- }
- return result;
-}
-
-
-// Rounds number 'num' to 'length' decimal places.
-function roundNumber(num, length) {
- var factor = Math.pow(10, length);
- return Math.round(num * factor) / factor;
-}
-
-
-// Convert a JSON response to text for display in a text based debugger.
-function DebugResponseDetails(response) {
- var details = { text: '', running: false };
-
- try {
- if (!response.success()) {
- details.text = response.message();
- return details;
- }
-
- // Get the running state.
- details.running = response.running();
-
- var body = response.body();
- var result = '';
- switch (response.command()) {
- case 'suspend':
- details.text = 'stopped';
- break;
-
- case 'setbreakpoint':
- result = 'set breakpoint #';
- result += body.breakpoint;
- details.text = result;
- break;
-
- case 'clearbreakpoint':
- result = 'cleared breakpoint #';
- result += body.breakpoint;
- details.text = result;
- break;
-
- case 'changebreakpoint':
- result = 'successfully changed breakpoint';
- details.text = result;
- break;
-
- case 'listbreakpoints':
- result = 'breakpoints: (' + body.breakpoints.length + ')';
- for (var i = 0; i < body.breakpoints.length; i++) {
- var breakpoint = body.breakpoints[i];
- result += '\n id=' + breakpoint.number;
- result += ' type=' + breakpoint.type;
- if (breakpoint.script_id) {
- result += ' script_id=' + breakpoint.script_id;
- }
- if (breakpoint.script_name) {
- result += ' script_name=' + breakpoint.script_name;
- }
- if (breakpoint.script_regexp) {
- result += ' script_regexp=' + breakpoint.script_regexp;
- }
- result += ' line=' + (breakpoint.line + 1);
- if (breakpoint.column != null) {
- result += ' column=' + (breakpoint.column + 1);
- }
- if (breakpoint.groupId) {
- result += ' groupId=' + breakpoint.groupId;
- }
- if (breakpoint.ignoreCount) {
- result += ' ignoreCount=' + breakpoint.ignoreCount;
- }
- if (breakpoint.active === false) {
- result += ' inactive';
- }
- if (breakpoint.condition) {
- result += ' condition=' + breakpoint.condition;
- }
- result += ' hit_count=' + breakpoint.hit_count;
- }
- if (body.breakpoints.length === 0) {
- result = "No user defined breakpoints\n";
- } else {
- result += '\n';
- }
- if (body.breakOnExceptions) {
- result += '* breaking on ALL exceptions is enabled\n';
- } else if (body.breakOnUncaughtExceptions) {
- result += '* breaking on UNCAUGHT exceptions is enabled\n';
- } else {
- result += '* all exception breakpoints are disabled\n';
- }
- details.text = result;
- break;
-
- case 'setexceptionbreak':
- result = 'Break on ' + body.type + ' exceptions: ';
- result += body.enabled ? 'enabled' : 'disabled';
- details.text = result;
- break;
-
- case 'backtrace':
- if (body.totalFrames == 0) {
- result = '(empty stack)';
- } else {
- var result = 'Frames #' + body.fromFrame + ' to #' +
- (body.toFrame - 1) + ' of ' + body.totalFrames + '\n';
- for (i = 0; i < body.frames.length; i++) {
- if (i != 0) result += '\n';
- result += body.frames[i].text;
- }
- }
- details.text = result;
- break;
-
- case 'frame':
- if (last_cmd === 'info locals') {
- var locals = body.locals;
- if (locals.length === 0) {
- result = 'No locals';
- } else {
- for (var i = 0; i < locals.length; i++) {
- var local = locals[i];
- result += local.name + ' = ';
- result += refObjectToString_(response, local.value.ref);
- result += '\n';
- }
- }
- } else if (last_cmd === 'info args') {
- var args = body.arguments;
- if (args.length === 0) {
- result = 'No arguments';
- } else {
- for (var i = 0; i < args.length; i++) {
- var arg = args[i];
- result += arg.name + ' = ';
- result += refObjectToString_(response, arg.value.ref);
- result += '\n';
- }
- }
- } else {
- result = SourceUnderline(body.sourceLineText,
- body.column);
- Debug.State.currentSourceLine = body.line;
- Debug.State.currentFrame = body.index;
- Debug.State.displaySourceStartLine = -1;
- Debug.State.displaySourceEndLine = -1;
- }
- details.text = result;
- break;
-
- case 'scopes':
- if (body.totalScopes == 0) {
- result = '(no scopes)';
- } else {
- result = 'Scopes #' + body.fromScope + ' to #' +
- (body.toScope - 1) + ' of ' + body.totalScopes + '\n';
- for (i = 0; i < body.scopes.length; i++) {
- if (i != 0) {
- result += '\n';
- }
- result += formatScope_(body.scopes[i]);
- }
- }
- details.text = result;
- break;
-
- case 'scope':
- result += formatScope_(body);
- result += '\n';
- var scope_object_value = response.lookup(body.object.ref);
- result += formatObject_(scope_object_value, true);
- details.text = result;
- break;
-
- case 'evaluate':
- case 'lookup':
- case 'getobj':
- if (last_cmd == 'p' || last_cmd == 'print') {
- result = body.text;
- } else {
- var value;
- if (lookup_handle) {
- value = response.bodyValue(lookup_handle);
- } else {
- value = response.bodyValue();
- }
- if (value.isObject()) {
- result += formatObject_(value, true);
- } else {
- result += 'type: ';
- result += value.type();
- if (!value.isUndefined() && !value.isNull()) {
- result += ', ';
- if (value.isString()) {
- result += '"';
- }
- result += value.value();
- if (value.isString()) {
- result += '"';
- }
- }
- result += '\n';
- }
- }
- details.text = result;
- break;
-
- case 'references':
- var count = body.length;
- result += 'found ' + count + ' objects';
- result += '\n';
- for (var i = 0; i < count; i++) {
- var value = response.bodyValue(i);
- result += formatObject_(value, false);
- result += '\n';
- }
- details.text = result;
- break;
-
- case 'source':
- // Get the source from the response.
- var source = body.source;
- var from_line = body.fromLine + 1;
- var lines = source.split('\n');
- var maxdigits = 1 + Math.floor(log10(from_line + lines.length));
- if (maxdigits < 3) {
- maxdigits = 3;
- }
- var result = '';
- for (var num = 0; num < lines.length; num++) {
- // Check if there's an extra newline at the end.
- if (num == (lines.length - 1) && lines[num].length == 0) {
- break;
- }
-
- var current_line = from_line + num;
- var spacer = maxdigits - (1 + Math.floor(log10(current_line)));
- if (current_line == Debug.State.currentSourceLine + 1) {
- for (var i = 0; i < maxdigits; i++) {
- result += '>';
- }
- result += ' ';
- } else {
- for (var i = 0; i < spacer; i++) {
- result += ' ';
- }
- result += current_line + ': ';
- }
- result += lines[num];
- result += '\n';
- }
- details.text = result;
- break;
-
- case 'scripts':
- var result = '';
- for (i = 0; i < body.length; i++) {
- if (i != 0) result += '\n';
- if (body[i].id) {
- result += body[i].id;
- } else {
- result += '[no id]';
- }
- result += ', ';
- if (body[i].name) {
- result += body[i].name;
- } else {
- if (body[i].compilationType == Debug.ScriptCompilationType.Eval
- && body[i].evalFromScript
- ) {
- result += 'eval from ';
- var script_value = response.lookup(body[i].evalFromScript.ref);
- result += ' ' + script_value.field('name');
- result += ':' + (body[i].evalFromLocation.line + 1);
- result += ':' + body[i].evalFromLocation.column;
- } else if (body[i].compilationType ==
- Debug.ScriptCompilationType.JSON) {
- result += 'JSON ';
- } else { // body[i].compilation == Debug.ScriptCompilationType.Host
- result += '[unnamed] ';
- }
- }
- result += ' (lines: ';
- result += body[i].lineCount;
- result += ', length: ';
- result += body[i].sourceLength;
- if (body[i].type == Debug.ScriptType.Native) {
- result += ', native';
- } else if (body[i].type == Debug.ScriptType.Extension) {
- result += ', extension';
- }
- result += '), [';
- var sourceStart = body[i].sourceStart;
- if (sourceStart.length > 40) {
- sourceStart = sourceStart.substring(0, 37) + '...';
- }
- result += sourceStart;
- result += ']';
- }
- if (body.length == 0) {
- result = "no matching scripts found";
- }
- details.text = result;
- break;
-
- case 'threads':
- var result = 'Active V8 threads: ' + body.totalThreads + '\n';
- body.threads.sort(function(a, b) { return a.id - b.id; });
- for (i = 0; i < body.threads.length; i++) {
- result += body.threads[i].current ? '*' : ' ';
- result += ' ';
- result += body.threads[i].id;
- result += '\n';
- }
- details.text = result;
- break;
-
- case 'continue':
- details.text = "(running)";
- break;
-
- case 'v8flags':
- details.text = "flags set";
- break;
-
- case 'gc':
- details.text = "GC " + body.before + " => " + body.after;
- if (body.after > (1024*1024)) {
- details.text +=
- " (" + roundNumber(body.before/(1024*1024), 1) + "M => " +
- roundNumber(body.after/(1024*1024), 1) + "M)";
- } else if (body.after > 1024) {
- details.text +=
- " (" + roundNumber(body.before/1024, 1) + "K => " +
- roundNumber(body.after/1024, 1) + "K)";
- }
- break;
-
- default:
- details.text =
- 'Response for unknown command \'' + response.command() + '\'' +
- ' (' + response.raw_json() + ')';
- }
- } catch (e) {
- details.text = 'Error: "' + e + '" formatting response';
- }
-
- return details;
-}
-
-
-/**
- * Protocol packages send from the debugger.
- * @param {string} json - raw protocol packet as JSON string.
- * @constructor
- */
-function ProtocolPackage(json) {
- this.raw_json_ = json;
- this.packet_ = JSON.parse(json);
- this.refs_ = [];
- if (this.packet_.refs) {
- for (var i = 0; i < this.packet_.refs.length; i++) {
- this.refs_[this.packet_.refs[i].handle] = this.packet_.refs[i];
- }
- }
-}
-
-
-/**
- * Get the packet type.
- * @return {String} the packet type
- */
-ProtocolPackage.prototype.type = function() {
- return this.packet_.type;
-};
-
-
-/**
- * Get the packet event.
- * @return {Object} the packet event
- */
-ProtocolPackage.prototype.event = function() {
- return this.packet_.event;
-};
-
-
-/**
- * Get the packet request sequence.
- * @return {number} the packet request sequence
- */
-ProtocolPackage.prototype.requestSeq = function() {
- return this.packet_.request_seq;
-};
-
-
-/**
- * Get the packet request sequence.
- * @return {number} the packet request sequence
- */
-ProtocolPackage.prototype.running = function() {
- return this.packet_.running ? true : false;
-};
-
-
-ProtocolPackage.prototype.success = function() {
- return this.packet_.success ? true : false;
-};
-
-
-ProtocolPackage.prototype.message = function() {
- return this.packet_.message;
-};
-
-
-ProtocolPackage.prototype.command = function() {
- return this.packet_.command;
-};
-
-
-ProtocolPackage.prototype.body = function() {
- return this.packet_.body;
-};
-
-
-ProtocolPackage.prototype.bodyValue = function(index) {
- if (index != null) {
- return new ProtocolValue(this.packet_.body[index], this);
- } else {
- return new ProtocolValue(this.packet_.body, this);
- }
-};
-
-
-ProtocolPackage.prototype.body = function() {
- return this.packet_.body;
-};
-
-
-ProtocolPackage.prototype.lookup = function(handle) {
- var value = this.refs_[handle];
- if (value) {
- return new ProtocolValue(value, this);
- } else {
- return new ProtocolReference(handle);
- }
-};
-
-
-ProtocolPackage.prototype.raw_json = function() {
- return this.raw_json_;
-};
-
-
-function ProtocolValue(value, packet) {
- this.value_ = value;
- this.packet_ = packet;
-}
-
-
-/**
- * Get the value type.
- * @return {String} the value type
- */
-ProtocolValue.prototype.type = function() {
- return this.value_.type;
-};
-
-
-/**
- * Get a metadata field from a protocol value.
- * @return {Object} the metadata field value
- */
-ProtocolValue.prototype.field = function(name) {
- return this.value_[name];
-};
-
-
-/**
- * Check is the value is a primitive value.
- * @return {boolean} true if the value is primitive
- */
-ProtocolValue.prototype.isPrimitive = function() {
- return this.isUndefined() || this.isNull() || this.isBoolean() ||
- this.isNumber() || this.isString();
-};
-
-
-/**
- * Get the object handle.
- * @return {number} the value handle
- */
-ProtocolValue.prototype.handle = function() {
- return this.value_.handle;
-};
-
-
-/**
- * Check is the value is undefined.
- * @return {boolean} true if the value is undefined
- */
-ProtocolValue.prototype.isUndefined = function() {
- return this.value_.type == 'undefined';
-};
-
-
-/**
- * Check is the value is null.
- * @return {boolean} true if the value is null
- */
-ProtocolValue.prototype.isNull = function() {
- return this.value_.type == 'null';
-};
-
-
-/**
- * Check is the value is a boolean.
- * @return {boolean} true if the value is a boolean
- */
-ProtocolValue.prototype.isBoolean = function() {
- return this.value_.type == 'boolean';
-};
-
-
-/**
- * Check is the value is a number.
- * @return {boolean} true if the value is a number
- */
-ProtocolValue.prototype.isNumber = function() {
- return this.value_.type == 'number';
-};
-
-
-/**
- * Check is the value is a string.
- * @return {boolean} true if the value is a string
- */
-ProtocolValue.prototype.isString = function() {
- return this.value_.type == 'string';
-};
-
-
-/**
- * Check is the value is an object.
- * @return {boolean} true if the value is an object
- */
-ProtocolValue.prototype.isObject = function() {
- return this.value_.type == 'object' || this.value_.type == 'function' ||
- this.value_.type == 'error' || this.value_.type == 'regexp';
-};
-
-
-/**
- * Get the constructor function
- * @return {ProtocolValue} constructor function
- */
-ProtocolValue.prototype.constructorFunctionValue = function() {
- var ctor = this.value_.constructorFunction;
- return this.packet_.lookup(ctor.ref);
-};
-
-
-/**
- * Get the __proto__ value
- * @return {ProtocolValue} __proto__ value
- */
-ProtocolValue.prototype.protoObjectValue = function() {
- var proto = this.value_.protoObject;
- return this.packet_.lookup(proto.ref);
-};
-
-
-/**
- * Get the number og properties.
- * @return {number} the number of properties
- */
-ProtocolValue.prototype.propertyCount = function() {
- return this.value_.properties ? this.value_.properties.length : 0;
-};
-
-
-/**
- * Get the specified property name.
- * @return {string} property name
- */
-ProtocolValue.prototype.propertyName = function(index) {
- var property = this.value_.properties[index];
- return property.name;
-};
-
-
-/**
- * Return index for the property name.
- * @param name The property name to look for
- * @return {number} index for the property name
- */
-ProtocolValue.prototype.propertyIndex = function(name) {
- for (var i = 0; i < this.propertyCount(); i++) {
- if (this.value_.properties[i].name == name) {
- return i;
- }
- }
- return null;
-};
-
-
-/**
- * Get the specified property value.
- * @return {ProtocolValue} property value
- */
-ProtocolValue.prototype.propertyValue = function(index) {
- var property = this.value_.properties[index];
- return this.packet_.lookup(property.ref);
-};
-
-
-/**
- * Check is the value is a string.
- * @return {boolean} true if the value is a string
- */
-ProtocolValue.prototype.value = function() {
- return this.value_.value;
-};
-
-
-ProtocolValue.prototype.valueString = function() {
- return this.value_.text;
-};
-
-
-function ProtocolReference(handle) {
- this.handle_ = handle;
-}
-
-
-ProtocolReference.prototype.handle = function() {
- return this.handle_;
-};
-
-
// A more universal stringify that supports more types than JSON.
// Used by the d8 shell to output results.
var stringifyDepthLimit = 4; // To avoid crashing on cyclic objects
+// Hacky solution to circumvent forcing --allow-natives-syntax for d8
+function isProxy(o) { return false };
+function JSProxyGetTarget(proxy) { };
+function JSProxyGetHandler(proxy) { };
+
+try {
+ isProxy = Function(['object'], 'return %_IsJSProxy(object)');
+ JSProxyGetTarget = Function(['proxy'],
+ 'return %JSProxyGetTarget(proxy)');
+ JSProxyGetHandler = Function(['proxy'],
+ 'return %JSProxyGetHandler(proxy)');
+} catch(e) {};
+
+
function Stringify(x, depth) {
if (depth === undefined)
depth = stringifyDepthLimit;
else if (depth === 0)
- return "*";
+ return "...";
+ if (isProxy(x)) {
+ return StringifyProxy(x, depth);
+ }
switch (typeof x) {
case "undefined":
return "undefined";
@@ -2017,6 +77,15 @@
}
return "{" + props.join(", ") + "}";
default:
- return "[crazy non-standard shit]";
+ return "[crazy non-standard value]";
}
}
+
+function StringifyProxy(proxy, depth) {
+ var proxy_type = typeof proxy;
+ var info_object = {
+ target: JSProxyGetTarget(proxy),
+ handler: JSProxyGetHandler(proxy)
+ }
+ return '[' + proxy_type + ' Proxy ' + Stringify(info_object, depth-1) + ']';
+}