Update to V8 with partial snapshots. This is taken from the partial_snapshot branch of V8.
diff --git a/src/debug-debugger.js b/src/debug-debugger.js
new file mode 100644
index 0000000..14d8c88
--- /dev/null
+++ b/src/debug-debugger.js
@@ -0,0 +1,2073 @@
+// Copyright 2006-2008 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following
+// disclaimer in the documentation and/or other materials provided
+// with the distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Default number of frames to include in the response to backtrace request.
+const kDefaultBacktraceLength = 10;
+
+const Debug = {};
+
+// Regular expression to skip "crud" at the beginning of a source line which is
+// not really code. Currently the regular expression matches whitespace and
+// comments.
+const sourceLineBeginningSkip = /^(?:\s*(?:\/\*.*?\*\/)*)*/;
+
+// Debug events which can occour in the V8 JavaScript engine. These originate
+// from the API include file debug.h.
+Debug.DebugEvent = { Break: 1,
+ Exception: 2,
+ NewFunction: 3,
+ BeforeCompile: 4,
+ AfterCompile: 5,
+ ScriptCollected: 6 };
+
+// Types of exceptions that can be broken upon.
+Debug.ExceptionBreak = { All : 0,
+ Uncaught: 1 };
+
+// The different types of steps.
+Debug.StepAction = { StepOut: 0,
+ StepNext: 1,
+ StepIn: 2,
+ StepMin: 3,
+ StepInMin: 4 };
+
+// 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 script break point types.
+Debug.ScriptBreakPointType = { ScriptId: 0,
+ ScriptName: 1 };
+
+function ScriptTypeFlag(type) {
+ return (1 << type);
+}
+
+// Globals.
+var next_response_seq = 0;
+var next_break_point_number = 1;
+var break_points = [];
+var script_break_points = [];
+
+
+// Create a new break point object and add it to the list of break points.
+function MakeBreakPoint(source_position, opt_line, opt_column, opt_script_break_point) {
+ var break_point = new BreakPoint(source_position, opt_line, opt_column, opt_script_break_point);
+ break_points.push(break_point);
+ return break_point;
+}
+
+
+// Object representing a break point.
+// NOTE: This object does not have a reference to the function having break
+// point as this would cause function not to be garbage collected when it is
+// not used any more. We do not want break points to keep functions alive.
+function BreakPoint(source_position, opt_line, opt_column, opt_script_break_point) {
+ this.source_position_ = source_position;
+ this.source_line_ = opt_line;
+ this.source_column_ = opt_column;
+ if (opt_script_break_point) {
+ this.script_break_point_ = opt_script_break_point;
+ } else {
+ this.number_ = next_break_point_number++;
+ }
+ this.hit_count_ = 0;
+ this.active_ = true;
+ this.condition_ = null;
+ this.ignoreCount_ = 0;
+}
+
+
+BreakPoint.prototype.number = function() {
+ return this.number_;
+};
+
+
+BreakPoint.prototype.func = function() {
+ return this.func_;
+};
+
+
+BreakPoint.prototype.source_position = function() {
+ return this.source_position_;
+};
+
+
+BreakPoint.prototype.hit_count = function() {
+ return this.hit_count_;
+};
+
+
+BreakPoint.prototype.active = function() {
+ if (this.script_break_point()) {
+ return this.script_break_point().active();
+ }
+ return this.active_;
+};
+
+
+BreakPoint.prototype.condition = function() {
+ if (this.script_break_point() && this.script_break_point().condition()) {
+ return this.script_break_point().condition();
+ }
+ return this.condition_;
+};
+
+
+BreakPoint.prototype.ignoreCount = function() {
+ return this.ignoreCount_;
+};
+
+
+BreakPoint.prototype.script_break_point = function() {
+ return this.script_break_point_;
+};
+
+
+BreakPoint.prototype.enable = function() {
+ this.active_ = true;
+};
+
+
+BreakPoint.prototype.disable = function() {
+ this.active_ = false;
+};
+
+
+BreakPoint.prototype.setCondition = function(condition) {
+ this.condition_ = condition;
+};
+
+
+BreakPoint.prototype.setIgnoreCount = function(ignoreCount) {
+ this.ignoreCount_ = ignoreCount;
+};
+
+
+BreakPoint.prototype.isTriggered = function(exec_state) {
+ // Break point not active - not triggered.
+ if (!this.active()) return false;
+
+ // Check for conditional break point.
+ if (this.condition()) {
+ // If break point has condition try to evaluate it in the top frame.
+ try {
+ var mirror = exec_state.frame(0).evaluate(this.condition());
+ // If no sensible mirror or non true value break point not triggered.
+ if (!(mirror instanceof ValueMirror) || !%ToBoolean(mirror.value_)) {
+ return false;
+ }
+ } catch (e) {
+ // Exception evaluating condition counts as not triggered.
+ return false;
+ }
+ }
+
+ // Update the hit count.
+ this.hit_count_++;
+ if (this.script_break_point_) {
+ this.script_break_point_.hit_count_++;
+ }
+
+ // If the break point has an ignore count it is not triggered.
+ if (this.ignoreCount_ > 0) {
+ this.ignoreCount_--;
+ return false;
+ }
+
+ // Break point triggered.
+ return true;
+};
+
+
+// Function called from the runtime when a break point is hit. Returns true if
+// the break point is triggered and supposed to break execution.
+function IsBreakPointTriggered(break_id, break_point) {
+ return break_point.isTriggered(MakeExecutionState(break_id));
+}
+
+
+// Object representing a script break point. The script is referenced by its
+// script name or script id and the break point is represented as line and
+// column.
+function ScriptBreakPoint(type, script_id_or_name, opt_line, opt_column,
+ opt_groupId) {
+ this.type_ = type;
+ if (type == Debug.ScriptBreakPointType.ScriptId) {
+ this.script_id_ = script_id_or_name;
+ } else { // type == Debug.ScriptBreakPointType.ScriptName
+ this.script_name_ = script_id_or_name;
+ }
+ this.line_ = opt_line || 0;
+ this.column_ = opt_column;
+ this.groupId_ = opt_groupId;
+ this.hit_count_ = 0;
+ this.active_ = true;
+ this.condition_ = null;
+ this.ignoreCount_ = 0;
+}
+
+
+ScriptBreakPoint.prototype.number = function() {
+ return this.number_;
+};
+
+
+ScriptBreakPoint.prototype.groupId = function() {
+ return this.groupId_;
+};
+
+
+ScriptBreakPoint.prototype.type = function() {
+ return this.type_;
+};
+
+
+ScriptBreakPoint.prototype.script_id = function() {
+ return this.script_id_;
+};
+
+
+ScriptBreakPoint.prototype.script_name = function() {
+ return this.script_name_;
+};
+
+
+ScriptBreakPoint.prototype.line = function() {
+ return this.line_;
+};
+
+
+ScriptBreakPoint.prototype.column = function() {
+ return this.column_;
+};
+
+
+ScriptBreakPoint.prototype.hit_count = function() {
+ return this.hit_count_;
+};
+
+
+ScriptBreakPoint.prototype.active = function() {
+ return this.active_;
+};
+
+
+ScriptBreakPoint.prototype.condition = function() {
+ return this.condition_;
+};
+
+
+ScriptBreakPoint.prototype.ignoreCount = function() {
+ return this.ignoreCount_;
+};
+
+
+ScriptBreakPoint.prototype.enable = function() {
+ this.active_ = true;
+};
+
+
+ScriptBreakPoint.prototype.disable = function() {
+ this.active_ = false;
+};
+
+
+ScriptBreakPoint.prototype.setCondition = function(condition) {
+ this.condition_ = condition;
+};
+
+
+ScriptBreakPoint.prototype.setIgnoreCount = function(ignoreCount) {
+ this.ignoreCount_ = ignoreCount;
+
+ // Set ignore count on all break points created from this script break point.
+ for (var i = 0; i < break_points.length; i++) {
+ if (break_points[i].script_break_point() === this) {
+ break_points[i].setIgnoreCount(ignoreCount);
+ }
+ }
+};
+
+
+// Check whether a script matches this script break point. Currently this is
+// only based on script name.
+ScriptBreakPoint.prototype.matchesScript = function(script) {
+ if (this.type_ == Debug.ScriptBreakPointType.ScriptId) {
+ return this.script_id_ == script.id;
+ } else { // this.type_ == Debug.ScriptBreakPointType.ScriptName
+ return this.script_name_ == script.name &&
+ script.line_offset <= this.line_ &&
+ this.line_ < script.line_offset + script.lineCount();
+ }
+};
+
+
+// Set the script break point in a script.
+ScriptBreakPoint.prototype.set = function (script) {
+ var column = this.column();
+ var line = this.line();
+ // If the column is undefined the break is on the line. To help locate the
+ // first piece of breakable code on the line try to find the column on the
+ // line which contains some source.
+ if (IS_UNDEFINED(column)) {
+ var source_line = script.sourceLine(this.line());
+
+ // Allocate array for caching the columns where the actual source starts.
+ if (!script.sourceColumnStart_) {
+ script.sourceColumnStart_ = new Array(script.lineCount());
+ }
+
+ // Fill cache if needed and get column where the actual source starts.
+ if (IS_UNDEFINED(script.sourceColumnStart_[line])) {
+ script.sourceColumnStart_[line] =
+ source_line.match(sourceLineBeginningSkip)[0].length;
+ }
+ column = script.sourceColumnStart_[line];
+ }
+
+ // Convert the line and column into an absolute position within the script.
+ var pos = Debug.findScriptSourcePosition(script, this.line(), column);
+
+ // If the position is not found in the script (the script might be shorter
+ // than it used to be) just ignore it.
+ if (pos === null) return;
+
+ // Create a break point object and set the break point.
+ break_point = MakeBreakPoint(pos, this.line(), this.column(), this);
+ break_point.setIgnoreCount(this.ignoreCount());
+ %SetScriptBreakPoint(script, pos, break_point);
+
+ return break_point;
+};
+
+
+// Clear all the break points created from this script break point
+ScriptBreakPoint.prototype.clear = function () {
+ var remaining_break_points = [];
+ for (var i = 0; i < break_points.length; i++) {
+ if (break_points[i].script_break_point() &&
+ break_points[i].script_break_point() === this) {
+ %ClearBreakPoint(break_points[i]);
+ } else {
+ remaining_break_points.push(break_points[i]);
+ }
+ }
+ break_points = remaining_break_points;
+};
+
+
+// Function called from runtime when a new script is compiled to set any script
+// break points set in this script.
+function UpdateScriptBreakPoints(script) {
+ for (var i = 0; i < script_break_points.length; i++) {
+ if (script_break_points[i].type() == Debug.ScriptBreakPointType.ScriptName &&
+ script_break_points[i].matchesScript(script)) {
+ script_break_points[i].set(script);
+ }
+ }
+}
+
+
+Debug.setListener = function(listener, opt_data) {
+ if (!IS_FUNCTION(listener) && !IS_UNDEFINED(listener) && !IS_NULL(listener)) {
+ throw new Error('Parameters have wrong types.');
+ }
+ %SetDebugEventListener(listener, opt_data);
+};
+
+
+Debug.breakExecution = function(f) {
+ %Break();
+};
+
+Debug.breakLocations = function(f) {
+ if (!IS_FUNCTION(f)) throw new Error('Parameters have wrong types.');
+ return %GetBreakLocations(f);
+};
+
+// Returns a Script object. If the parameter is a function the return value
+// is the script in which the function is defined. If the parameter is a string
+// the return value is the script for which the script name has that string
+// value. If it is a regexp and there is a unique script whose name matches
+// we return that, otherwise undefined.
+Debug.findScript = function(func_or_script_name) {
+ if (IS_FUNCTION(func_or_script_name)) {
+ return %FunctionGetScript(func_or_script_name);
+ } else if (IS_REGEXP(func_or_script_name)) {
+ var scripts = Debug.scripts();
+ var last_result = null;
+ var result_count = 0;
+ for (var i in scripts) {
+ var script = scripts[i];
+ if (func_or_script_name.test(script.name)) {
+ last_result = script;
+ result_count++;
+ }
+ }
+ // Return the unique script matching the regexp. If there are more
+ // than one we don't return a value since there is no good way to
+ // decide which one to return. Returning a "random" one, say the
+ // first, would introduce nondeterminism (or something close to it)
+ // because the order is the heap iteration order.
+ if (result_count == 1) {
+ return last_result;
+ } else {
+ return undefined;
+ }
+ } else {
+ return %GetScript(func_or_script_name);
+ }
+};
+
+// Returns the script source. If the parameter is a function the return value
+// is the script source for the script in which the function is defined. If the
+// parameter is a string the return value is the script for which the script
+// name has that string value.
+Debug.scriptSource = function(func_or_script_name) {
+ return this.findScript(func_or_script_name).source;
+};
+
+Debug.source = function(f) {
+ if (!IS_FUNCTION(f)) throw new Error('Parameters have wrong types.');
+ return %FunctionGetSourceCode(f);
+};
+
+Debug.disassemble = function(f) {
+ if (!IS_FUNCTION(f)) throw new Error('Parameters have wrong types.');
+ return %DebugDisassembleFunction(f);
+};
+
+Debug.disassembleConstructor = function(f) {
+ if (!IS_FUNCTION(f)) throw new Error('Parameters have wrong types.');
+ return %DebugDisassembleConstructor(f);
+};
+
+Debug.sourcePosition = function(f) {
+ if (!IS_FUNCTION(f)) throw new Error('Parameters have wrong types.');
+ return %FunctionGetScriptSourcePosition(f);
+};
+
+
+Debug.findFunctionSourceLocation = function(func, opt_line, opt_column) {
+ var script = %FunctionGetScript(func);
+ var script_offset = %FunctionGetScriptSourcePosition(func);
+ return script.locationFromLine(opt_line, opt_column, script_offset);
+}
+
+
+// Returns the character position in a script based on a line number and an
+// optional position within that line.
+Debug.findScriptSourcePosition = function(script, opt_line, opt_column) {
+ var location = script.locationFromLine(opt_line, opt_column);
+ return location ? location.position : null;
+}
+
+
+Debug.findBreakPoint = function(break_point_number, remove) {
+ var break_point;
+ for (var i = 0; i < break_points.length; i++) {
+ if (break_points[i].number() == break_point_number) {
+ break_point = break_points[i];
+ // Remove the break point from the list if requested.
+ if (remove) {
+ break_points.splice(i, 1);
+ }
+ break;
+ }
+ }
+ if (break_point) {
+ return break_point;
+ } else {
+ return this.findScriptBreakPoint(break_point_number, remove);
+ }
+};
+
+
+Debug.setBreakPoint = function(func, opt_line, opt_column, opt_condition) {
+ if (!IS_FUNCTION(func)) throw new Error('Parameters have wrong types.');
+ // Break points in API functions are not supported.
+ if (%FunctionIsAPIFunction(func)) {
+ throw new Error('Cannot set break point in native code.');
+ }
+ // Find source position relative to start of the function
+ var break_position =
+ this.findFunctionSourceLocation(func, opt_line, opt_column).position;
+ var source_position = break_position - this.sourcePosition(func);
+ // Find the script for the function.
+ var script = %FunctionGetScript(func);
+ // Break in builtin JavaScript code is not supported.
+ if (script.type == Debug.ScriptType.Native) {
+ throw new Error('Cannot set break point in native code.');
+ }
+ // If the script for the function has a name convert this to a script break
+ // point.
+ if (script && script.id) {
+ // Adjust the source position to be script relative.
+ source_position += %FunctionGetScriptSourcePosition(func);
+ // Find line and column for the position in the script and set a script
+ // break point from that.
+ var location = script.locationFromPosition(source_position, false);
+ return this.setScriptBreakPointById(script.id,
+ location.line, location.column,
+ opt_condition);
+ } else {
+ // Set a break point directly on the function.
+ var break_point = MakeBreakPoint(source_position, opt_line, opt_column);
+ %SetFunctionBreakPoint(func, source_position, break_point);
+ break_point.setCondition(opt_condition);
+ return break_point.number();
+ }
+};
+
+
+Debug.enableBreakPoint = function(break_point_number) {
+ var break_point = this.findBreakPoint(break_point_number, false);
+ break_point.enable();
+};
+
+
+Debug.disableBreakPoint = function(break_point_number) {
+ var break_point = this.findBreakPoint(break_point_number, false);
+ break_point.disable();
+};
+
+
+Debug.changeBreakPointCondition = function(break_point_number, condition) {
+ var break_point = this.findBreakPoint(break_point_number, false);
+ break_point.setCondition(condition);
+};
+
+
+Debug.changeBreakPointIgnoreCount = function(break_point_number, ignoreCount) {
+ if (ignoreCount < 0) {
+ throw new Error('Invalid argument');
+ }
+ var break_point = this.findBreakPoint(break_point_number, false);
+ break_point.setIgnoreCount(ignoreCount);
+};
+
+
+Debug.clearBreakPoint = function(break_point_number) {
+ var break_point = this.findBreakPoint(break_point_number, true);
+ if (break_point) {
+ return %ClearBreakPoint(break_point);
+ } else {
+ break_point = this.findScriptBreakPoint(break_point_number, true);
+ if (!break_point) {
+ throw new Error('Invalid breakpoint');
+ }
+ }
+};
+
+
+Debug.clearAllBreakPoints = function() {
+ for (var i = 0; i < break_points.length; i++) {
+ break_point = break_points[i];
+ %ClearBreakPoint(break_point);
+ }
+ break_points = [];
+};
+
+
+Debug.findScriptBreakPoint = function(break_point_number, remove) {
+ var script_break_point;
+ for (var i = 0; i < script_break_points.length; i++) {
+ if (script_break_points[i].number() == break_point_number) {
+ script_break_point = script_break_points[i];
+ // Remove the break point from the list if requested.
+ if (remove) {
+ script_break_point.clear();
+ script_break_points.splice(i,1);
+ }
+ break;
+ }
+ }
+ return script_break_point;
+}
+
+
+// Sets a breakpoint in a script identified through id or name at the
+// specified source line and column within that line.
+Debug.setScriptBreakPoint = function(type, script_id_or_name,
+ opt_line, opt_column, opt_condition,
+ opt_groupId) {
+ // Create script break point object.
+ var script_break_point =
+ new ScriptBreakPoint(type, script_id_or_name, opt_line, opt_column,
+ opt_groupId);
+
+ // Assign number to the new script break point and add it.
+ script_break_point.number_ = next_break_point_number++;
+ script_break_point.setCondition(opt_condition);
+ script_break_points.push(script_break_point);
+
+ // Run through all scripts to see if this script break point matches any
+ // loaded scripts.
+ var scripts = this.scripts();
+ for (var i = 0; i < scripts.length; i++) {
+ if (script_break_point.matchesScript(scripts[i])) {
+ script_break_point.set(scripts[i]);
+ }
+ }
+
+ return script_break_point.number();
+}
+
+
+Debug.setScriptBreakPointById = function(script_id,
+ opt_line, opt_column,
+ opt_condition, opt_groupId) {
+ return this.setScriptBreakPoint(Debug.ScriptBreakPointType.ScriptId,
+ script_id, opt_line, opt_column,
+ opt_condition, opt_groupId);
+}
+
+
+Debug.setScriptBreakPointByName = function(script_name,
+ opt_line, opt_column,
+ opt_condition, opt_groupId) {
+ return this.setScriptBreakPoint(Debug.ScriptBreakPointType.ScriptName,
+ script_name, opt_line, opt_column,
+ opt_condition, opt_groupId);
+}
+
+
+Debug.enableScriptBreakPoint = function(break_point_number) {
+ var script_break_point = this.findScriptBreakPoint(break_point_number, false);
+ script_break_point.enable();
+};
+
+
+Debug.disableScriptBreakPoint = function(break_point_number) {
+ var script_break_point = this.findScriptBreakPoint(break_point_number, false);
+ script_break_point.disable();
+};
+
+
+Debug.changeScriptBreakPointCondition = function(break_point_number, condition) {
+ var script_break_point = this.findScriptBreakPoint(break_point_number, false);
+ script_break_point.setCondition(condition);
+};
+
+
+Debug.changeScriptBreakPointIgnoreCount = function(break_point_number, ignoreCount) {
+ if (ignoreCount < 0) {
+ throw new Error('Invalid argument');
+ }
+ var script_break_point = this.findScriptBreakPoint(break_point_number, false);
+ script_break_point.setIgnoreCount(ignoreCount);
+};
+
+
+Debug.scriptBreakPoints = function() {
+ return script_break_points;
+}
+
+
+Debug.clearStepping = function() {
+ %ClearStepping();
+}
+
+Debug.setBreakOnException = function() {
+ return %ChangeBreakOnException(Debug.ExceptionBreak.All, true);
+};
+
+Debug.clearBreakOnException = function() {
+ return %ChangeBreakOnException(Debug.ExceptionBreak.All, false);
+};
+
+Debug.setBreakOnUncaughtException = function() {
+ return %ChangeBreakOnException(Debug.ExceptionBreak.Uncaught, true);
+};
+
+Debug.clearBreakOnUncaughtException = function() {
+ return %ChangeBreakOnException(Debug.ExceptionBreak.Uncaught, false);
+};
+
+Debug.showBreakPoints = function(f, full) {
+ if (!IS_FUNCTION(f)) throw new Error('Parameters have wrong types.');
+ var source = full ? this.scriptSource(f) : this.source(f);
+ var offset = full ? this.sourcePosition(f) : 0;
+ var locations = this.breakLocations(f);
+ if (!locations) return source;
+ locations.sort(function(x, y) { return x - y; });
+ var result = "";
+ var prev_pos = 0;
+ var pos;
+ for (var i = 0; i < locations.length; i++) {
+ pos = locations[i] - offset;
+ result += source.slice(prev_pos, pos);
+ result += "[B" + i + "]";
+ prev_pos = pos;
+ }
+ pos = source.length;
+ result += source.substring(prev_pos, pos);
+ return result;
+};
+
+
+// Get all the scripts currently loaded. Locating all the scripts is based on
+// scanning the heap.
+Debug.scripts = function() {
+ // Collect all scripts in the heap.
+ return %DebugGetLoadedScripts();
+}
+
+function MakeExecutionState(break_id) {
+ return new ExecutionState(break_id);
+}
+
+function ExecutionState(break_id) {
+ this.break_id = break_id;
+ this.selected_frame = 0;
+}
+
+ExecutionState.prototype.prepareStep = function(opt_action, opt_count) {
+ var action = Debug.StepAction.StepIn;
+ if (!IS_UNDEFINED(opt_action)) action = %ToNumber(opt_action);
+ var count = opt_count ? %ToNumber(opt_count) : 1;
+
+ return %PrepareStep(this.break_id, action, count);
+}
+
+ExecutionState.prototype.evaluateGlobal = function(source, disable_break) {
+ return MakeMirror(
+ %DebugEvaluateGlobal(this.break_id, source, Boolean(disable_break)));
+};
+
+ExecutionState.prototype.frameCount = function() {
+ return %GetFrameCount(this.break_id);
+};
+
+ExecutionState.prototype.threadCount = function() {
+ return %GetThreadCount(this.break_id);
+};
+
+ExecutionState.prototype.frame = function(opt_index) {
+ // If no index supplied return the selected frame.
+ if (opt_index == null) opt_index = this.selected_frame;
+ return new FrameMirror(this.break_id, opt_index);
+};
+
+ExecutionState.prototype.cframesValue = function(opt_from_index, opt_to_index) {
+ return %GetCFrames(this.break_id);
+};
+
+ExecutionState.prototype.setSelectedFrame = function(index) {
+ var i = %ToNumber(index);
+ if (i < 0 || i >= this.frameCount()) throw new Error('Illegal frame index.');
+ this.selected_frame = i;
+};
+
+ExecutionState.prototype.selectedFrame = function() {
+ return this.selected_frame;
+};
+
+ExecutionState.prototype.debugCommandProcessor = function(opt_is_running) {
+ return new DebugCommandProcessor(this, opt_is_running);
+};
+
+
+function MakeBreakEvent(exec_state, break_points_hit) {
+ return new BreakEvent(exec_state, break_points_hit);
+}
+
+
+function BreakEvent(exec_state, break_points_hit) {
+ this.exec_state_ = exec_state;
+ this.break_points_hit_ = break_points_hit;
+}
+
+
+BreakEvent.prototype.executionState = function() {
+ return this.exec_state_;
+};
+
+
+BreakEvent.prototype.eventType = function() {
+ return Debug.DebugEvent.Break;
+};
+
+
+BreakEvent.prototype.func = function() {
+ return this.exec_state_.frame(0).func();
+};
+
+
+BreakEvent.prototype.sourceLine = function() {
+ return this.exec_state_.frame(0).sourceLine();
+};
+
+
+BreakEvent.prototype.sourceColumn = function() {
+ return this.exec_state_.frame(0).sourceColumn();
+};
+
+
+BreakEvent.prototype.sourceLineText = function() {
+ return this.exec_state_.frame(0).sourceLineText();
+};
+
+
+BreakEvent.prototype.breakPointsHit = function() {
+ return this.break_points_hit_;
+};
+
+
+BreakEvent.prototype.toJSONProtocol = function() {
+ var o = { seq: next_response_seq++,
+ type: "event",
+ event: "break",
+ body: { invocationText: this.exec_state_.frame(0).invocationText(),
+ }
+ };
+
+ // Add script related information to the event if available.
+ var script = this.func().script();
+ if (script) {
+ o.body.sourceLine = this.sourceLine(),
+ o.body.sourceColumn = this.sourceColumn(),
+ o.body.sourceLineText = this.sourceLineText(),
+ o.body.script = MakeScriptObject_(script, false);
+ }
+
+ // Add an Array of break points hit if any.
+ if (this.breakPointsHit()) {
+ o.body.breakpoints = [];
+ for (var i = 0; i < this.breakPointsHit().length; i++) {
+ // Find the break point number. For break points originating from a
+ // script break point supply the script break point number.
+ var breakpoint = this.breakPointsHit()[i];
+ var script_break_point = breakpoint.script_break_point();
+ var number;
+ if (script_break_point) {
+ number = script_break_point.number();
+ } else {
+ number = breakpoint.number();
+ }
+ o.body.breakpoints.push(number);
+ }
+ }
+ return JSON.stringify(ObjectToProtocolObject_(o));
+};
+
+
+function MakeExceptionEvent(exec_state, exception, uncaught) {
+ return new ExceptionEvent(exec_state, exception, uncaught);
+}
+
+
+function ExceptionEvent(exec_state, exception, uncaught) {
+ this.exec_state_ = exec_state;
+ this.exception_ = exception;
+ this.uncaught_ = uncaught;
+}
+
+
+ExceptionEvent.prototype.executionState = function() {
+ return this.exec_state_;
+};
+
+
+ExceptionEvent.prototype.eventType = function() {
+ return Debug.DebugEvent.Exception;
+};
+
+
+ExceptionEvent.prototype.exception = function() {
+ return this.exception_;
+}
+
+
+ExceptionEvent.prototype.uncaught = function() {
+ return this.uncaught_;
+}
+
+
+ExceptionEvent.prototype.func = function() {
+ return this.exec_state_.frame(0).func();
+};
+
+
+ExceptionEvent.prototype.sourceLine = function() {
+ return this.exec_state_.frame(0).sourceLine();
+};
+
+
+ExceptionEvent.prototype.sourceColumn = function() {
+ return this.exec_state_.frame(0).sourceColumn();
+};
+
+
+ExceptionEvent.prototype.sourceLineText = function() {
+ return this.exec_state_.frame(0).sourceLineText();
+};
+
+
+ExceptionEvent.prototype.toJSONProtocol = function() {
+ var o = new ProtocolMessage();
+ o.event = "exception";
+ o.body = { uncaught: this.uncaught_,
+ exception: MakeMirror(this.exception_)
+ };
+
+ // Exceptions might happen whithout any JavaScript frames.
+ if (this.exec_state_.frameCount() > 0) {
+ o.body.sourceLine = this.sourceLine();
+ o.body.sourceColumn = this.sourceColumn();
+ o.body.sourceLineText = this.sourceLineText();
+
+ // Add script information to the event if available.
+ var script = this.func().script();
+ if (script) {
+ o.body.script = MakeScriptObject_(script, false);
+ }
+ } else {
+ o.body.sourceLine = -1;
+ }
+
+ return o.toJSONProtocol();
+};
+
+
+function MakeCompileEvent(exec_state, script, before) {
+ return new CompileEvent(exec_state, script, before);
+}
+
+
+function CompileEvent(exec_state, script, before) {
+ this.exec_state_ = exec_state;
+ this.script_ = MakeMirror(script);
+ this.before_ = before;
+}
+
+
+CompileEvent.prototype.executionState = function() {
+ return this.exec_state_;
+};
+
+
+CompileEvent.prototype.eventType = function() {
+ if (this.before_) {
+ return Debug.DebugEvent.BeforeCompile;
+ } else {
+ return Debug.DebugEvent.AfterCompile;
+ }
+};
+
+
+CompileEvent.prototype.script = function() {
+ return this.script_;
+};
+
+
+CompileEvent.prototype.toJSONProtocol = function() {
+ var o = new ProtocolMessage();
+ o.running = true;
+ if (this.before_) {
+ o.event = "beforeCompile";
+ } else {
+ o.event = "afterCompile";
+ }
+ o.body = {};
+ o.body.script = this.script_;
+
+ return o.toJSONProtocol();
+}
+
+
+function MakeNewFunctionEvent(func) {
+ return new NewFunctionEvent(func);
+}
+
+
+function NewFunctionEvent(func) {
+ this.func = func;
+}
+
+
+NewFunctionEvent.prototype.eventType = function() {
+ return Debug.DebugEvent.NewFunction;
+};
+
+
+NewFunctionEvent.prototype.name = function() {
+ return this.func.name;
+};
+
+
+NewFunctionEvent.prototype.setBreakPoint = function(p) {
+ Debug.setBreakPoint(this.func, p || 0);
+};
+
+
+function MakeScriptCollectedEvent(exec_state, id) {
+ return new ScriptCollectedEvent(exec_state, id);
+}
+
+
+function ScriptCollectedEvent(exec_state, id) {
+ this.exec_state_ = exec_state;
+ this.id_ = id;
+}
+
+
+ScriptCollectedEvent.prototype.id = function() {
+ return this.id_;
+};
+
+
+ScriptCollectedEvent.prototype.executionState = function() {
+ return this.exec_state_;
+};
+
+
+ScriptCollectedEvent.prototype.toJSONProtocol = function() {
+ var o = new ProtocolMessage();
+ o.running = true;
+ o.event = "scriptCollected";
+ o.body = {};
+ o.body.script = { id: this.id() };
+ return o.toJSONProtocol();
+}
+
+
+function MakeScriptObject_(script, include_source) {
+ var o = { id: script.id(),
+ name: script.name(),
+ lineOffset: script.lineOffset(),
+ columnOffset: script.columnOffset(),
+ lineCount: script.lineCount(),
+ };
+ if (!IS_UNDEFINED(script.data())) {
+ o.data = script.data();
+ }
+ if (include_source) {
+ o.source = script.source();
+ }
+ return o;
+};
+
+
+function DebugCommandProcessor(exec_state, opt_is_running) {
+ this.exec_state_ = exec_state;
+ this.running_ = opt_is_running || false;
+};
+
+
+DebugCommandProcessor.prototype.processDebugRequest = function (request) {
+ return this.processDebugJSONRequest(request);
+}
+
+
+function ProtocolMessage(request) {
+ // Update sequence number.
+ this.seq = next_response_seq++;
+
+ if (request) {
+ // If message is based on a request this is a response. Fill the initial
+ // response from the request.
+ this.type = 'response';
+ this.request_seq = request.seq;
+ this.command = request.command;
+ } else {
+ // If message is not based on a request it is a dabugger generated event.
+ this.type = 'event';
+ }
+ this.success = true;
+ // Handler may set this field to control debugger state.
+ this.running = undefined;
+}
+
+
+ProtocolMessage.prototype.setOption = function(name, value) {
+ if (!this.options_) {
+ this.options_ = {};
+ }
+ this.options_[name] = value;
+}
+
+
+ProtocolMessage.prototype.failed = function(message) {
+ this.success = false;
+ this.message = message;
+}
+
+
+ProtocolMessage.prototype.toJSONProtocol = function() {
+ // Encode the protocol header.
+ var json = {};
+ json.seq= this.seq;
+ if (this.request_seq) {
+ json.request_seq = this.request_seq;
+ }
+ json.type = this.type;
+ if (this.event) {
+ json.event = this.event;
+ }
+ if (this.command) {
+ json.command = this.command;
+ }
+ if (this.success) {
+ json.success = this.success;
+ } else {
+ json.success = false;
+ }
+ if (this.body) {
+ // Encode the body part.
+ var bodyJson;
+ var serializer = MakeMirrorSerializer(true, this.options_);
+ if (this.body instanceof Mirror) {
+ bodyJson = serializer.serializeValue(this.body);
+ } else if (this.body instanceof Array) {
+ bodyJson = [];
+ for (var i = 0; i < this.body.length; i++) {
+ if (this.body[i] instanceof Mirror) {
+ bodyJson.push(serializer.serializeValue(this.body[i]));
+ } else {
+ bodyJson.push(ObjectToProtocolObject_(this.body[i], serializer));
+ }
+ }
+ } else {
+ bodyJson = ObjectToProtocolObject_(this.body, serializer);
+ }
+ json.body = bodyJson;
+ json.refs = serializer.serializeReferencedObjects();
+ }
+ if (this.message) {
+ json.message = this.message;
+ }
+ json.running = this.running;
+ return JSON.stringify(json);
+}
+
+
+DebugCommandProcessor.prototype.createResponse = function(request) {
+ return new ProtocolMessage(request);
+};
+
+
+DebugCommandProcessor.prototype.processDebugJSONRequest = function(json_request) {
+ var request; // Current request.
+ var response; // Generated response.
+ try {
+ try {
+ // Convert the JSON string to an object.
+ request = %CompileString('(' + json_request + ')', false)();
+
+ // Create an initial response.
+ response = this.createResponse(request);
+
+ if (!request.type) {
+ throw new Error('Type not specified');
+ }
+
+ if (request.type != 'request') {
+ throw new Error("Illegal type '" + request.type + "' in request");
+ }
+
+ if (!request.command) {
+ throw new Error('Command not specified');
+ }
+
+ // TODO(yurys): remove request.arguments.compactFormat check once
+ // ChromeDevTools are switched to 'inlineRefs'
+ if (request.arguments && (request.arguments.inlineRefs ||
+ request.arguments.compactFormat)) {
+ response.setOption('inlineRefs', true);
+ }
+
+ if (request.command == 'continue') {
+ this.continueRequest_(request, response);
+ } else if (request.command == 'break') {
+ this.breakRequest_(request, response);
+ } else if (request.command == 'setbreakpoint') {
+ this.setBreakPointRequest_(request, response);
+ } else if (request.command == 'changebreakpoint') {
+ this.changeBreakPointRequest_(request, response);
+ } else if (request.command == 'clearbreakpoint') {
+ this.clearBreakPointRequest_(request, response);
+ } else if (request.command == 'clearbreakpointgroup') {
+ this.clearBreakPointGroupRequest_(request, response);
+ } else if (request.command == 'backtrace') {
+ this.backtraceRequest_(request, response);
+ } else if (request.command == 'frame') {
+ this.frameRequest_(request, response);
+ } else if (request.command == 'scopes') {
+ this.scopesRequest_(request, response);
+ } else if (request.command == 'scope') {
+ this.scopeRequest_(request, response);
+ } else if (request.command == 'evaluate') {
+ this.evaluateRequest_(request, response);
+ } else if (request.command == 'lookup') {
+ this.lookupRequest_(request, response);
+ } else if (request.command == 'references') {
+ this.referencesRequest_(request, response);
+ } else if (request.command == 'source') {
+ this.sourceRequest_(request, response);
+ } else if (request.command == 'scripts') {
+ this.scriptsRequest_(request, response);
+ } else if (request.command == 'threads') {
+ this.threadsRequest_(request, response);
+ } else if (request.command == 'suspend') {
+ this.suspendRequest_(request, response);
+ } else if (request.command == 'version') {
+ this.versionRequest_(request, response);
+ } else if (request.command == 'profile') {
+ this.profileRequest_(request, response);
+ } else {
+ throw new Error('Unknown command "' + request.command + '" in request');
+ }
+ } catch (e) {
+ // If there is no response object created one (without command).
+ if (!response) {
+ response = this.createResponse();
+ }
+ response.success = false;
+ response.message = %ToString(e);
+ }
+
+ // Return the response as a JSON encoded string.
+ try {
+ if (!IS_UNDEFINED(response.running)) {
+ // Response controls running state.
+ this.running_ = response.running;
+ }
+ response.running = this.running_;
+ return response.toJSONProtocol();
+ } catch (e) {
+ // Failed to generate response - return generic error.
+ return '{"seq":' + response.seq + ',' +
+ '"request_seq":' + request.seq + ',' +
+ '"type":"response",' +
+ '"success":false,' +
+ '"message":"Internal error: ' + %ToString(e) + '"}';
+ }
+ } catch (e) {
+ // Failed in one of the catch blocks above - most generic error.
+ return '{"seq":0,"type":"response","success":false,"message":"Internal error"}';
+ }
+};
+
+
+DebugCommandProcessor.prototype.continueRequest_ = function(request, response) {
+ // Check for arguments for continue.
+ if (request.arguments) {
+ var count = 1;
+ var action = Debug.StepAction.StepIn;
+
+ // Pull out arguments.
+ var stepaction = request.arguments.stepaction;
+ var stepcount = request.arguments.stepcount;
+
+ // Get the stepcount argument if any.
+ if (stepcount) {
+ count = %ToNumber(stepcount);
+ if (count < 0) {
+ throw new Error('Invalid stepcount argument "' + stepcount + '".');
+ }
+ }
+
+ // Get the stepaction argument.
+ if (stepaction) {
+ if (stepaction == 'in') {
+ action = Debug.StepAction.StepIn;
+ } else if (stepaction == 'min') {
+ action = Debug.StepAction.StepMin;
+ } else if (stepaction == 'next') {
+ action = Debug.StepAction.StepNext;
+ } else if (stepaction == 'out') {
+ action = Debug.StepAction.StepOut;
+ } else {
+ throw new Error('Invalid stepaction argument "' + stepaction + '".');
+ }
+ }
+
+ // Setup the VM for stepping.
+ this.exec_state_.prepareStep(action, count);
+ }
+
+ // VM should be running after executing this request.
+ response.running = true;
+};
+
+
+DebugCommandProcessor.prototype.breakRequest_ = function(request, response) {
+ // Ignore as break command does not do anything when broken.
+};
+
+
+DebugCommandProcessor.prototype.setBreakPointRequest_ =
+ function(request, response) {
+ // Check for legal request.
+ if (!request.arguments) {
+ response.failed('Missing arguments');
+ return;
+ }
+
+ // Pull out arguments.
+ var type = request.arguments.type;
+ var target = request.arguments.target;
+ var line = request.arguments.line;
+ var column = request.arguments.column;
+ var enabled = IS_UNDEFINED(request.arguments.enabled) ?
+ true : request.arguments.enabled;
+ var condition = request.arguments.condition;
+ var ignoreCount = request.arguments.ignoreCount;
+ var groupId = request.arguments.groupId;
+
+ // Check for legal arguments.
+ if (!type || IS_UNDEFINED(target)) {
+ response.failed('Missing argument "type" or "target"');
+ return;
+ }
+ if (type != 'function' && type != 'handle' &&
+ type != 'script' && type != 'scriptId') {
+ response.failed('Illegal type "' + type + '"');
+ return;
+ }
+
+ // Either function or script break point.
+ var break_point_number;
+ if (type == 'function') {
+ // Handle function break point.
+ if (!IS_STRING(target)) {
+ response.failed('Argument "target" is not a string value');
+ return;
+ }
+ var f;
+ try {
+ // Find the function through a global evaluate.
+ f = this.exec_state_.evaluateGlobal(target).value();
+ } catch (e) {
+ response.failed('Error: "' + %ToString(e) +
+ '" evaluating "' + target + '"');
+ return;
+ }
+ if (!IS_FUNCTION(f)) {
+ response.failed('"' + target + '" does not evaluate to a function');
+ return;
+ }
+
+ // Set function break point.
+ break_point_number = Debug.setBreakPoint(f, line, column, condition);
+ } else if (type == 'handle') {
+ // Find the object pointed by the specified handle.
+ var handle = parseInt(target, 10);
+ var mirror = LookupMirror(handle);
+ if (!mirror) {
+ return response.failed('Object #' + handle + '# not found');
+ }
+ if (!mirror.isFunction()) {
+ return response.failed('Object #' + handle + '# is not a function');
+ }
+
+ // Set function break point.
+ break_point_number = Debug.setBreakPoint(mirror.value(),
+ line, column, condition);
+ } else if (type == 'script') {
+ // set script break point.
+ break_point_number =
+ Debug.setScriptBreakPointByName(target, line, column, condition,
+ groupId);
+ } else { // type == 'scriptId.
+ break_point_number =
+ Debug.setScriptBreakPointById(target, line, column, condition, groupId);
+ }
+
+ // Set additional break point properties.
+ var break_point = Debug.findBreakPoint(break_point_number);
+ if (ignoreCount) {
+ Debug.changeBreakPointIgnoreCount(break_point_number, ignoreCount);
+ }
+ if (!enabled) {
+ Debug.disableBreakPoint(break_point_number);
+ }
+
+ // Add the break point number to the response.
+ response.body = { type: type,
+ breakpoint: break_point_number }
+
+ // Add break point information to the response.
+ if (break_point instanceof ScriptBreakPoint) {
+ if (break_point.type() == Debug.ScriptBreakPointType.ScriptId) {
+ response.body.type = 'scriptId';
+ response.body.script_id = break_point.script_id();
+ } else {
+ response.body.type = 'scriptName';
+ response.body.script_name = break_point.script_name();
+ }
+ response.body.line = break_point.line();
+ response.body.column = break_point.column();
+ } else {
+ response.body.type = 'function';
+ }
+};
+
+
+DebugCommandProcessor.prototype.changeBreakPointRequest_ = function(request, response) {
+ // Check for legal request.
+ if (!request.arguments) {
+ response.failed('Missing arguments');
+ return;
+ }
+
+ // Pull out arguments.
+ var break_point = %ToNumber(request.arguments.breakpoint);
+ var enabled = request.arguments.enabled;
+ var condition = request.arguments.condition;
+ var ignoreCount = request.arguments.ignoreCount;
+
+ // Check for legal arguments.
+ if (!break_point) {
+ response.failed('Missing argument "breakpoint"');
+ return;
+ }
+
+ // Change enabled state if supplied.
+ if (!IS_UNDEFINED(enabled)) {
+ if (enabled) {
+ Debug.enableBreakPoint(break_point);
+ } else {
+ Debug.disableBreakPoint(break_point);
+ }
+ }
+
+ // Change condition if supplied
+ if (!IS_UNDEFINED(condition)) {
+ Debug.changeBreakPointCondition(break_point, condition);
+ }
+
+ // Change ignore count if supplied
+ if (!IS_UNDEFINED(ignoreCount)) {
+ Debug.changeBreakPointIgnoreCount(break_point, ignoreCount);
+ }
+}
+
+
+DebugCommandProcessor.prototype.clearBreakPointGroupRequest_ = function(request, response) {
+ // Check for legal request.
+ if (!request.arguments) {
+ response.failed('Missing arguments');
+ return;
+ }
+
+ // Pull out arguments.
+ var group_id = request.arguments.groupId;
+
+ // Check for legal arguments.
+ if (!group_id) {
+ response.failed('Missing argument "groupId"');
+ return;
+ }
+
+ var cleared_break_points = [];
+ var new_script_break_points = [];
+ for (var i = 0; i < script_break_points.length; i++) {
+ var next_break_point = script_break_points[i];
+ if (next_break_point.groupId() == group_id) {
+ cleared_break_points.push(next_break_point.number());
+ next_break_point.clear();
+ } else {
+ new_script_break_points.push(next_break_point);
+ }
+ }
+ script_break_points = new_script_break_points;
+
+ // Add the cleared break point numbers to the response.
+ response.body = { breakpoints: cleared_break_points };
+}
+
+
+DebugCommandProcessor.prototype.clearBreakPointRequest_ = function(request, response) {
+ // Check for legal request.
+ if (!request.arguments) {
+ response.failed('Missing arguments');
+ return;
+ }
+
+ // Pull out arguments.
+ var break_point = %ToNumber(request.arguments.breakpoint);
+
+ // Check for legal arguments.
+ if (!break_point) {
+ response.failed('Missing argument "breakpoint"');
+ return;
+ }
+
+ // Clear break point.
+ Debug.clearBreakPoint(break_point);
+
+ // Add the cleared break point number to the response.
+ response.body = { breakpoint: break_point }
+}
+
+
+DebugCommandProcessor.prototype.backtraceRequest_ = function(request, response) {
+ // Get the number of frames.
+ var total_frames = this.exec_state_.frameCount();
+
+ // Create simple response if there are no frames.
+ if (total_frames == 0) {
+ response.body = {
+ totalFrames: total_frames
+ }
+ return;
+ }
+
+ // Default frame range to include in backtrace.
+ var from_index = 0
+ var to_index = kDefaultBacktraceLength;
+
+ // Get the range from the arguments.
+ if (request.arguments) {
+ if (request.arguments.fromFrame) {
+ from_index = request.arguments.fromFrame;
+ }
+ if (request.arguments.toFrame) {
+ to_index = request.arguments.toFrame;
+ }
+ if (request.arguments.bottom) {
+ var tmp_index = total_frames - from_index;
+ from_index = total_frames - to_index
+ to_index = tmp_index;
+ }
+ if (from_index < 0 || to_index < 0) {
+ return response.failed('Invalid frame number');
+ }
+ }
+
+ // Adjust the index.
+ to_index = Math.min(total_frames, to_index);
+
+ if (to_index <= from_index) {
+ var error = 'Invalid frame range';
+ return response.failed(error);
+ }
+
+ // Create the response body.
+ var frames = [];
+ for (var i = from_index; i < to_index; i++) {
+ frames.push(this.exec_state_.frame(i));
+ }
+ response.body = {
+ fromFrame: from_index,
+ toFrame: to_index,
+ totalFrames: total_frames,
+ frames: frames
+ }
+};
+
+
+DebugCommandProcessor.prototype.backtracec = function(cmd, args) {
+ return this.exec_state_.cframesValue();
+};
+
+
+DebugCommandProcessor.prototype.frameRequest_ = function(request, response) {
+ // No frames no source.
+ if (this.exec_state_.frameCount() == 0) {
+ return response.failed('No frames');
+ }
+
+ // With no arguments just keep the selected frame.
+ if (request.arguments) {
+ var index = request.arguments.number;
+ if (index < 0 || this.exec_state_.frameCount() <= index) {
+ return response.failed('Invalid frame number');
+ }
+
+ this.exec_state_.setSelectedFrame(request.arguments.number);
+ }
+ response.body = this.exec_state_.frame();
+};
+
+
+DebugCommandProcessor.prototype.frameForScopeRequest_ = function(request) {
+ // Get the frame for which the scope or scopes are requested. With no frameNumber
+ // argument use the currently selected frame.
+ if (request.arguments && !IS_UNDEFINED(request.arguments.frameNumber)) {
+ frame_index = request.arguments.frameNumber;
+ if (frame_index < 0 || this.exec_state_.frameCount() <= frame_index) {
+ return response.failed('Invalid frame number');
+ }
+ return this.exec_state_.frame(frame_index);
+ } else {
+ return this.exec_state_.frame();
+ }
+}
+
+
+DebugCommandProcessor.prototype.scopesRequest_ = function(request, response) {
+ // No frames no scopes.
+ if (this.exec_state_.frameCount() == 0) {
+ return response.failed('No scopes');
+ }
+
+ // Get the frame for which the scopes are requested.
+ var frame = this.frameForScopeRequest_(request);
+
+ // Fill all scopes for this frame.
+ var total_scopes = frame.scopeCount();
+ var scopes = [];
+ for (var i = 0; i < total_scopes; i++) {
+ scopes.push(frame.scope(i));
+ }
+ response.body = {
+ fromScope: 0,
+ toScope: total_scopes,
+ totalScopes: total_scopes,
+ scopes: scopes
+ }
+};
+
+
+DebugCommandProcessor.prototype.scopeRequest_ = function(request, response) {
+ // No frames no scopes.
+ if (this.exec_state_.frameCount() == 0) {
+ return response.failed('No scopes');
+ }
+
+ // Get the frame for which the scope is requested.
+ var frame = this.frameForScopeRequest_(request);
+
+ // With no scope argument just return top scope.
+ var scope_index = 0;
+ if (request.arguments && !IS_UNDEFINED(request.arguments.number)) {
+ scope_index = %ToNumber(request.arguments.number);
+ if (scope_index < 0 || frame.scopeCount() <= scope_index) {
+ return response.failed('Invalid scope number');
+ }
+ }
+
+ response.body = frame.scope(scope_index);
+};
+
+
+DebugCommandProcessor.prototype.evaluateRequest_ = function(request, response) {
+ if (!request.arguments) {
+ return response.failed('Missing arguments');
+ }
+
+ // Pull out arguments.
+ var expression = request.arguments.expression;
+ var frame = request.arguments.frame;
+ var global = request.arguments.global;
+ var disable_break = request.arguments.disable_break;
+
+ // The expression argument could be an integer so we convert it to a
+ // string.
+ try {
+ expression = String(expression);
+ } catch(e) {
+ return response.failed('Failed to convert expression argument to string');
+ }
+
+ // Check for legal arguments.
+ if (!IS_UNDEFINED(frame) && global) {
+ return response.failed('Arguments "frame" and "global" are exclusive');
+ }
+
+ // Global evaluate.
+ if (global) {
+ // Evaluate in the global context.
+ response.body =
+ this.exec_state_.evaluateGlobal(expression, Boolean(disable_break));
+ return;
+ }
+
+ // Default value for disable_break is true.
+ if (IS_UNDEFINED(disable_break)) {
+ disable_break = true;
+ }
+
+ // No frames no evaluate in frame.
+ if (this.exec_state_.frameCount() == 0) {
+ return response.failed('No frames');
+ }
+
+ // Check whether a frame was specified.
+ if (!IS_UNDEFINED(frame)) {
+ var frame_number = %ToNumber(frame);
+ if (frame_number < 0 || frame_number >= this.exec_state_.frameCount()) {
+ return response.failed('Invalid frame "' + frame + '"');
+ }
+ // Evaluate in the specified frame.
+ response.body = this.exec_state_.frame(frame_number).evaluate(
+ expression, Boolean(disable_break));
+ return;
+ } else {
+ // Evaluate in the selected frame.
+ response.body = this.exec_state_.frame().evaluate(
+ expression, Boolean(disable_break));
+ return;
+ }
+};
+
+
+DebugCommandProcessor.prototype.lookupRequest_ = function(request, response) {
+ if (!request.arguments) {
+ return response.failed('Missing arguments');
+ }
+
+ // Pull out arguments.
+ var handles = request.arguments.handles;
+
+ // Check for legal arguments.
+ if (IS_UNDEFINED(handles)) {
+ return response.failed('Argument "handles" missing');
+ }
+
+ // Set 'includeSource' option for script lookup.
+ if (!IS_UNDEFINED(request.arguments.includeSource)) {
+ includeSource = %ToBoolean(request.arguments.includeSource);
+ response.setOption('includeSource', includeSource);
+ }
+
+ // Lookup handles.
+ var mirrors = {};
+ for (var i = 0; i < handles.length; i++) {
+ var handle = handles[i];
+ var mirror = LookupMirror(handle);
+ if (!mirror) {
+ return response.failed('Object #' + handle + '# not found');
+ }
+ mirrors[handle] = mirror;
+ }
+ response.body = mirrors;
+};
+
+
+DebugCommandProcessor.prototype.referencesRequest_ =
+ function(request, response) {
+ if (!request.arguments) {
+ return response.failed('Missing arguments');
+ }
+
+ // Pull out arguments.
+ var type = request.arguments.type;
+ var handle = request.arguments.handle;
+
+ // Check for legal arguments.
+ if (IS_UNDEFINED(type)) {
+ return response.failed('Argument "type" missing');
+ }
+ if (IS_UNDEFINED(handle)) {
+ return response.failed('Argument "handle" missing');
+ }
+ if (type != 'referencedBy' && type != 'constructedBy') {
+ return response.failed('Invalid type "' + type + '"');
+ }
+
+ // Lookup handle and return objects with references the object.
+ var mirror = LookupMirror(handle);
+ if (mirror) {
+ if (type == 'referencedBy') {
+ response.body = mirror.referencedBy();
+ } else {
+ response.body = mirror.constructedBy();
+ }
+ } else {
+ return response.failed('Object #' + handle + '# not found');
+ }
+};
+
+
+DebugCommandProcessor.prototype.sourceRequest_ = function(request, response) {
+ // No frames no source.
+ if (this.exec_state_.frameCount() == 0) {
+ return response.failed('No source');
+ }
+
+ var from_line;
+ var to_line;
+ var frame = this.exec_state_.frame();
+ if (request.arguments) {
+ // Pull out arguments.
+ from_line = request.arguments.fromLine;
+ to_line = request.arguments.toLine;
+
+ if (!IS_UNDEFINED(request.arguments.frame)) {
+ var frame_number = %ToNumber(request.arguments.frame);
+ if (frame_number < 0 || frame_number >= this.exec_state_.frameCount()) {
+ return response.failed('Invalid frame "' + frame + '"');
+ }
+ frame = this.exec_state_.frame(frame_number);
+ }
+ }
+
+ // Get the script selected.
+ var script = frame.func().script();
+ if (!script) {
+ return response.failed('No source');
+ }
+
+ // Get the source slice and fill it into the response.
+ var slice = script.sourceSlice(from_line, to_line);
+ if (!slice) {
+ return response.failed('Invalid line interval');
+ }
+ response.body = {};
+ response.body.source = slice.sourceText();
+ response.body.fromLine = slice.from_line;
+ response.body.toLine = slice.to_line;
+ response.body.fromPosition = slice.from_position;
+ response.body.toPosition = slice.to_position;
+ response.body.totalLines = script.lineCount();
+};
+
+
+DebugCommandProcessor.prototype.scriptsRequest_ = function(request, response) {
+ var types = ScriptTypeFlag(Debug.ScriptType.Normal);
+ var includeSource = false;
+ var idsToInclude = null;
+ if (request.arguments) {
+ // Pull out arguments.
+ if (!IS_UNDEFINED(request.arguments.types)) {
+ types = %ToNumber(request.arguments.types);
+ if (isNaN(types) || types < 0) {
+ return response.failed('Invalid types "' + request.arguments.types + '"');
+ }
+ }
+
+ if (!IS_UNDEFINED(request.arguments.includeSource)) {
+ includeSource = %ToBoolean(request.arguments.includeSource);
+ response.setOption('includeSource', includeSource);
+ }
+
+ if (IS_ARRAY(request.arguments.ids)) {
+ idsToInclude = {};
+ var ids = request.arguments.ids;
+ for (var i = 0; i < ids.length; i++) {
+ idsToInclude[ids[i]] = true;
+ }
+ }
+ }
+
+ // Collect all scripts in the heap.
+ var scripts = %DebugGetLoadedScripts();
+
+ response.body = [];
+
+ for (var i = 0; i < scripts.length; i++) {
+ if (idsToInclude && !idsToInclude[scripts[i].id]) {
+ continue;
+ }
+ if (types & ScriptTypeFlag(scripts[i].type)) {
+ response.body.push(MakeMirror(scripts[i]));
+ }
+ }
+};
+
+
+DebugCommandProcessor.prototype.threadsRequest_ = function(request, response) {
+ // Get the number of threads.
+ var total_threads = this.exec_state_.threadCount();
+
+ // Get information for all threads.
+ var threads = [];
+ for (var i = 0; i < total_threads; i++) {
+ var details = %GetThreadDetails(this.exec_state_.break_id, i);
+ var thread_info = { current: details[0],
+ id: details[1]
+ }
+ threads.push(thread_info);
+ }
+
+ // Create the response body.
+ response.body = {
+ totalThreads: total_threads,
+ threads: threads
+ }
+};
+
+
+DebugCommandProcessor.prototype.suspendRequest_ = function(request, response) {
+ response.running = false;
+};
+
+
+DebugCommandProcessor.prototype.versionRequest_ = function(request, response) {
+ response.body = {
+ V8Version: %GetV8Version()
+ }
+};
+
+
+DebugCommandProcessor.prototype.profileRequest_ = function(request, response) {
+ if (!request.arguments) {
+ return response.failed('Missing arguments');
+ }
+ var modules = parseInt(request.arguments.modules);
+ if (isNaN(modules)) {
+ return response.failed('Modules is not an integer');
+ }
+ if (request.arguments.command == 'resume') {
+ %ProfilerResume(modules);
+ } else if (request.arguments.command == 'pause') {
+ %ProfilerPause(modules);
+ } else {
+ return response.failed('Unknown command');
+ }
+ response.body = {};
+};
+
+
+// Check whether the previously processed command caused the VM to become
+// running.
+DebugCommandProcessor.prototype.isRunning = function() {
+ return this.running_;
+}
+
+
+DebugCommandProcessor.prototype.systemBreak = function(cmd, args) {
+ return %SystemBreak();
+};
+
+
+function NumberToHex8Str(n) {
+ var r = "";
+ for (var i = 0; i < 8; ++i) {
+ var c = hexCharArray[n & 0x0F]; // hexCharArray is defined in uri.js
+ r = c + r;
+ n = n >>> 4;
+ }
+ return r;
+};
+
+DebugCommandProcessor.prototype.formatCFrames = function(cframes_value) {
+ var result = "";
+ if (cframes_value == null || cframes_value.length == 0) {
+ result += "(stack empty)";
+ } else {
+ for (var i = 0; i < cframes_value.length; ++i) {
+ if (i != 0) result += "\n";
+ result += this.formatCFrame(cframes_value[i]);
+ }
+ }
+ return result;
+};
+
+
+DebugCommandProcessor.prototype.formatCFrame = function(cframe_value) {
+ var result = "";
+ result += "0x" + NumberToHex8Str(cframe_value.address);
+ if (!IS_UNDEFINED(cframe_value.text)) {
+ result += " " + cframe_value.text;
+ }
+ return result;
+}
+
+
+/**
+ * Convert an Object to its debugger protocol representation. The representation
+ * may be serilized to a JSON object using JSON.stringify().
+ * This implementation simply runs through all string property names, converts
+ * each property value to a protocol value and adds the property to the result
+ * object. For type "object" the function will be called recursively. Note that
+ * circular structures will cause infinite recursion.
+ * @param {Object} object The object to format as protocol object.
+ * @param {MirrorSerializer} mirror_serializer The serializer to use if any
+ * mirror objects are encountered.
+ * @return {Object} Protocol object value.
+ */
+function ObjectToProtocolObject_(object, mirror_serializer) {
+ var content = {};
+ for (var key in object) {
+ // Only consider string keys.
+ if (typeof key == 'string') {
+ // Format the value based on its type.
+ var property_value_json = ValueToProtocolValue_(object[key],
+ mirror_serializer);
+ // Add the property if relevant.
+ if (!IS_UNDEFINED(property_value_json)) {
+ content[key] = property_value_json;
+ }
+ }
+ }
+
+ return content;
+}
+
+
+/**
+ * Convert an array to its debugger protocol representation. It will convert
+ * each array element to a protocol value.
+ * @param {Array} array The array to format as protocol array.
+ * @param {MirrorSerializer} mirror_serializer The serializer to use if any
+ * mirror objects are encountered.
+ * @return {Array} Protocol array value.
+ */
+function ArrayToProtocolArray_(array, mirror_serializer) {
+ var json = [];
+ for (var i = 0; i < array.length; i++) {
+ json.push(ValueToProtocolValue_(array[i], mirror_serializer));
+ }
+ return json;
+}
+
+
+/**
+ * Convert a value to its debugger protocol representation.
+ * @param {*} value The value to format as protocol value.
+ * @param {MirrorSerializer} mirror_serializer The serializer to use if any
+ * mirror objects are encountered.
+ * @return {*} Protocol value.
+ */
+function ValueToProtocolValue_(value, mirror_serializer) {
+ // Format the value based on its type.
+ var json;
+ switch (typeof value) {
+ case 'object':
+ if (value instanceof Mirror) {
+ json = mirror_serializer.serializeValue(value);
+ } else if (IS_ARRAY(value)){
+ json = ArrayToProtocolArray_(value, mirror_serializer);
+ } else {
+ json = ObjectToProtocolObject_(value, mirror_serializer);
+ }
+ break;
+
+ case 'boolean':
+ case 'string':
+ case 'number':
+ json = value;
+ break
+
+ default:
+ json = null;
+ }
+ return json;
+}