// 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. // Handle id counters. var next_handle_ = 0; var next_transient_handle_ = -1; // Mirror cache. var mirror_cache_ = []; /** * Clear the mirror handle cache. */ function ClearMirrorCache() { next_handle_ = 0; mirror_cache_ = []; } /** * Returns the mirror for a specified value or object. * * @param {value or Object} value the value or object to retreive the mirror for * @param {boolean} transient indicate whether this object is transient and * should not be added to the mirror cache. The default is not transient. * @returns {Mirror} the mirror reflects the passed value or object */ function MakeMirror(value, opt_transient) { var mirror; // Look for non transient mirrors in the mirror cache. if (!opt_transient) { for (id in mirror_cache_) { mirror = mirror_cache_[id]; if (mirror.value() === value) { return mirror; } // Special check for NaN as NaN == NaN is false. if (mirror.isNumber() && isNaN(mirror.value()) && typeof value == 'number' && isNaN(value)) { return mirror; } } } if (IS_UNDEFINED(value)) { mirror = new UndefinedMirror(); } else if (IS_NULL(value)) { mirror = new NullMirror(); } else if (IS_BOOLEAN(value)) { mirror = new BooleanMirror(value); } else if (IS_NUMBER(value)) { mirror = new NumberMirror(value); } else if (IS_STRING(value)) { mirror = new StringMirror(value); } else if (IS_ARRAY(value)) { mirror = new ArrayMirror(value); } else if (IS_DATE(value)) { mirror = new DateMirror(value); } else if (IS_FUNCTION(value)) { mirror = new FunctionMirror(value); } else if (IS_REGEXP(value)) { mirror = new RegExpMirror(value); } else if (IS_ERROR(value)) { mirror = new ErrorMirror(value); } else if (IS_SCRIPT(value)) { mirror = new ScriptMirror(value); } else { mirror = new ObjectMirror(value, OBJECT_TYPE, opt_transient); } mirror_cache_[mirror.handle()] = mirror; return mirror; } /** * Returns the mirror for a specified mirror handle. * * @param {number} handle the handle to find the mirror for * @returns {Mirror or undefiend} the mirror with the requested handle or * undefined if no mirror with the requested handle was found */ function LookupMirror(handle) { return mirror_cache_[handle]; } /** * Returns the mirror for the undefined value. * * @returns {Mirror} the mirror reflects the undefined value */ function GetUndefinedMirror() { return MakeMirror(void 0); } /** * Inherit the prototype methods from one constructor into another. * * The Function.prototype.inherits from lang.js rewritten as a standalone * function (not on Function.prototype). NOTE: If this file is to be loaded * during bootstrapping this function needs to be revritten using some native * functions as prototype setup using normal JavaScript does not work as * expected during bootstrapping (see mirror.js in r114903). * * @param {function} ctor Constructor function which needs to inherit the * prototype * @param {function} superCtor Constructor function to inherit prototype from */ function inherits(ctor, superCtor) { var tempCtor = function(){}; tempCtor.prototype = superCtor.prototype; ctor.super_ = superCtor.prototype; ctor.prototype = new tempCtor(); ctor.prototype.constructor = ctor; } // Type names of the different mirrors. var UNDEFINED_TYPE = 'undefined'; var NULL_TYPE = 'null'; var BOOLEAN_TYPE = 'boolean'; var NUMBER_TYPE = 'number'; var STRING_TYPE = 'string'; var OBJECT_TYPE = 'object'; var FUNCTION_TYPE = 'function'; var REGEXP_TYPE = 'regexp'; var ERROR_TYPE = 'error'; var PROPERTY_TYPE = 'property'; var FRAME_TYPE = 'frame'; var SCRIPT_TYPE = 'script'; var CONTEXT_TYPE = 'context'; var SCOPE_TYPE = 'scope'; // Maximum length when sending strings through the JSON protocol. var kMaxProtocolStringLength = 80; // Different kind of properties. var PropertyKind = {}; PropertyKind.Named = 1; PropertyKind.Indexed = 2; // A copy of the PropertyType enum from global.h var PropertyType = {}; PropertyType.Normal = 0; PropertyType.Field = 1; PropertyType.ConstantFunction = 2; PropertyType.Callbacks = 3; PropertyType.Handler = 4; PropertyType.Interceptor = 5; PropertyType.MapTransition = 6; PropertyType.ExternalArrayTransition = 7; PropertyType.ConstantTransition = 8; PropertyType.NullDescriptor = 9; // Different attributes for a property. var PropertyAttribute = {}; PropertyAttribute.None = NONE; PropertyAttribute.ReadOnly = READ_ONLY; PropertyAttribute.DontEnum = DONT_ENUM; PropertyAttribute.DontDelete = DONT_DELETE; // A copy of the scope types from runtime.cc. var ScopeType = { Global: 0, Local: 1, With: 2, Closure: 3, Catch: 4, Block: 5 }; // Mirror hierarchy: // - Mirror // - ValueMirror // - UndefinedMirror // - NullMirror // - NumberMirror // - StringMirror // - ObjectMirror // - FunctionMirror // - UnresolvedFunctionMirror // - ArrayMirror // - DateMirror // - RegExpMirror // - ErrorMirror // - PropertyMirror // - FrameMirror // - ScriptMirror /** * Base class for all mirror objects. * @param {string} type The type of the mirror * @constructor */ function Mirror(type) { this.type_ = type; } Mirror.prototype.type = function() { return this.type_; }; /** * Check whether the mirror reflects a value. * @returns {boolean} True if the mirror reflects a value. */ Mirror.prototype.isValue = function() { return this instanceof ValueMirror; }; /** * Check whether the mirror reflects the undefined value. * @returns {boolean} True if the mirror reflects the undefined value. */ Mirror.prototype.isUndefined = function() { return this instanceof UndefinedMirror; }; /** * Check whether the mirror reflects the null value. * @returns {boolean} True if the mirror reflects the null value */ Mirror.prototype.isNull = function() { return this instanceof NullMirror; }; /** * Check whether the mirror reflects a boolean value. * @returns {boolean} True if the mirror reflects a boolean value */ Mirror.prototype.isBoolean = function() { return this instanceof BooleanMirror; }; /** * Check whether the mirror reflects a number value. * @returns {boolean} True if the mirror reflects a number value */ Mirror.prototype.isNumber = function() { return this instanceof NumberMirror; }; /** * Check whether the mirror reflects a string value. * @returns {boolean} True if the mirror reflects a string value */ Mirror.prototype.isString = function() { return this instanceof StringMirror; }; /** * Check whether the mirror reflects an object. * @returns {boolean} True if the mirror reflects an object */ Mirror.prototype.isObject = function() { return this instanceof ObjectMirror; }; /** * Check whether the mirror reflects a function. * @returns {boolean} True if the mirror reflects a function */ Mirror.prototype.isFunction = function() { return this instanceof FunctionMirror; }; /** * Check whether the mirror reflects an unresolved function. * @returns {boolean} True if the mirror reflects an unresolved function */ Mirror.prototype.isUnresolvedFunction = function() { return this instanceof UnresolvedFunctionMirror; }; /** * Check whether the mirror reflects an array. * @returns {boolean} True if the mirror reflects an array */ Mirror.prototype.isArray = function() { return this instanceof ArrayMirror; }; /** * Check whether the mirror reflects a date. * @returns {boolean} True if the mirror reflects a date */ Mirror.prototype.isDate = function() { return this instanceof DateMirror; }; /** * Check whether the mirror reflects a regular expression. * @returns {boolean} True if the mirror reflects a regular expression */ Mirror.prototype.isRegExp = function() { return this instanceof RegExpMirror; }; /** * Check whether the mirror reflects an error. * @returns {boolean} True if the mirror reflects an error */ Mirror.prototype.isError = function() { return this instanceof ErrorMirror; }; /** * Check whether the mirror reflects a property. * @returns {boolean} True if the mirror reflects a property */ Mirror.prototype.isProperty = function() { return this instanceof PropertyMirror; }; /** * Check whether the mirror reflects a stack frame. * @returns {boolean} True if the mirror reflects a stack frame */ Mirror.prototype.isFrame = function() { return this instanceof FrameMirror; }; /** * Check whether the mirror reflects a script. * @returns {boolean} True if the mirror reflects a script */ Mirror.prototype.isScript = function() { return this instanceof ScriptMirror; }; /** * Check whether the mirror reflects a context. * @returns {boolean} True if the mirror reflects a context */ Mirror.prototype.isContext = function() { return this instanceof ContextMirror; }; /** * Check whether the mirror reflects a scope. * @returns {boolean} True if the mirror reflects a scope */ Mirror.prototype.isScope = function() { return this instanceof ScopeMirror; }; /** * Allocate a handle id for this object. */ Mirror.prototype.allocateHandle_ = function() { this.handle_ = next_handle_++; }; /** * Allocate a transient handle id for this object. Transient handles are * negative. */ Mirror.prototype.allocateTransientHandle_ = function() { this.handle_ = next_transient_handle_--; }; Mirror.prototype.toText = function() { // Simpel to text which is used when on specialization in subclass. return "#<" + this.constructor.name + ">"; }; /** * Base class for all value mirror objects. * @param {string} type The type of the mirror * @param {value} value The value reflected by this mirror * @param {boolean} transient indicate whether this object is transient with a * transient handle * @constructor * @extends Mirror */ function ValueMirror(type, value, transient) { %_CallFunction(this, type, Mirror); this.value_ = value; if (!transient) { this.allocateHandle_(); } else { this.allocateTransientHandle_(); } } inherits(ValueMirror, Mirror); Mirror.prototype.handle = function() { return this.handle_; }; /** * Check whether this is a primitive value. * @return {boolean} True if the mirror reflects a primitive value */ ValueMirror.prototype.isPrimitive = function() { var type = this.type(); return type === 'undefined' || type === 'null' || type === 'boolean' || type === 'number' || type === 'string'; }; /** * Get the actual value reflected by this mirror. * @return {value} The value reflected by this mirror */ ValueMirror.prototype.value = function() { return this.value_; }; /** * Mirror object for Undefined. * @constructor * @extends ValueMirror */ function UndefinedMirror() { %_CallFunction(this, UNDEFINED_TYPE, void 0, ValueMirror); } inherits(UndefinedMirror, ValueMirror); UndefinedMirror.prototype.toText = function() { return 'undefined'; }; /** * Mirror object for null. * @constructor * @extends ValueMirror */ function NullMirror() { %_CallFunction(this, NULL_TYPE, null, ValueMirror); } inherits(NullMirror, ValueMirror); NullMirror.prototype.toText = function() { return 'null'; }; /** * Mirror object for boolean values. * @param {boolean} value The boolean value reflected by this mirror * @constructor * @extends ValueMirror */ function BooleanMirror(value) { %_CallFunction(this, BOOLEAN_TYPE, value, ValueMirror); } inherits(BooleanMirror, ValueMirror); BooleanMirror.prototype.toText = function() { return this.value_ ? 'true' : 'false'; }; /** * Mirror object for number values. * @param {number} value The number value reflected by this mirror * @constructor * @extends ValueMirror */ function NumberMirror(value) { %_CallFunction(this, NUMBER_TYPE, value, ValueMirror); } inherits(NumberMirror, ValueMirror); NumberMirror.prototype.toText = function() { return %NumberToString(this.value_); }; /** * Mirror object for string values. * @param {string} value The string value reflected by this mirror * @constructor * @extends ValueMirror */ function StringMirror(value) { %_CallFunction(this, STRING_TYPE, value, ValueMirror); } inherits(StringMirror, ValueMirror); StringMirror.prototype.length = function() { return this.value_.length; }; StringMirror.prototype.getTruncatedValue = function(maxLength) { if (maxLength != -1 && this.length() > maxLength) { return this.value_.substring(0, maxLength) + '... (length: ' + this.length() + ')'; } return this.value_; }; StringMirror.prototype.toText = function() { return this.getTruncatedValue(kMaxProtocolStringLength); }; /** * Mirror object for objects. * @param {object} value The object reflected by this mirror * @param {boolean} transient indicate whether this object is transient with a * transient handle * @constructor * @extends ValueMirror */ function ObjectMirror(value, type, transient) { %_CallFunction(this, type || OBJECT_TYPE, value, transient, ValueMirror); } inherits(ObjectMirror, ValueMirror); ObjectMirror.prototype.className = function() { return %_ClassOf(this.value_); }; ObjectMirror.prototype.constructorFunction = function() { return MakeMirror(%DebugGetProperty(this.value_, 'constructor')); }; ObjectMirror.prototype.prototypeObject = function() { return MakeMirror(%DebugGetProperty(this.value_, 'prototype')); }; ObjectMirror.prototype.protoObject = function() { return MakeMirror(%DebugGetPrototype(this.value_)); }; ObjectMirror.prototype.hasNamedInterceptor = function() { // Get information on interceptors for this object. var x = %GetInterceptorInfo(this.value_); return (x & 2) != 0; }; ObjectMirror.prototype.hasIndexedInterceptor = function() { // Get information on interceptors for this object. var x = %GetInterceptorInfo(this.value_); return (x & 1) != 0; }; /** * Return the property names for this object. * @param {number} kind Indicate whether named, indexed or both kinds of * properties are requested * @param {number} limit Limit the number of names returend to the specified value * @return {Array} Property names for this object */ ObjectMirror.prototype.propertyNames = function(kind, limit) { // Find kind and limit and allocate array for the result kind = kind || PropertyKind.Named | PropertyKind.Indexed; var propertyNames; var elementNames; var total = 0; // Find all the named properties. if (kind & PropertyKind.Named) { // Get the local property names. propertyNames = %GetLocalPropertyNames(this.value_); total += propertyNames.length; // Get names for named interceptor properties if any. if (this.hasNamedInterceptor() && (kind & PropertyKind.Named)) { var namedInterceptorNames = %GetNamedInterceptorPropertyNames(this.value_); if (namedInterceptorNames) { propertyNames = propertyNames.concat(namedInterceptorNames); total += namedInterceptorNames.length; } } } // Find all the indexed properties. if (kind & PropertyKind.Indexed) { // Get the local element names. elementNames = %GetLocalElementNames(this.value_); total += elementNames.length; // Get names for indexed interceptor properties. if (this.hasIndexedInterceptor() && (kind & PropertyKind.Indexed)) { var indexedInterceptorNames = %GetIndexedInterceptorElementNames(this.value_); if (indexedInterceptorNames) { elementNames = elementNames.concat(indexedInterceptorNames); total += indexedInterceptorNames.length; } } } limit = Math.min(limit || total, total); var names = new Array(limit); var index = 0; // Copy names for named properties. if (kind & PropertyKind.Named) { for (var i = 0; index < limit && i < propertyNames.length; i++) { names[index++] = propertyNames[i]; } } // Copy names for indexed properties. if (kind & PropertyKind.Indexed) { for (var i = 0; index < limit && i < elementNames.length; i++) { names[index++] = elementNames[i]; } } return names; }; /** * Return the properties for this object as an array of PropertyMirror objects. * @param {number} kind Indicate whether named, indexed or both kinds of * properties are requested * @param {number} limit Limit the number of properties returend to the specified value * @return {Array} Property mirrors for this object */ ObjectMirror.prototype.properties = function(kind, limit) { var names = this.propertyNames(kind, limit); var properties = new Array(names.length); for (var i = 0; i < names.length; i++) { properties[i] = this.property(names[i]); } return properties; }; ObjectMirror.prototype.property = function(name) { var details = %DebugGetPropertyDetails(this.value_, %ToString(name)); if (details) { return new PropertyMirror(this, name, details); } // Nothing found. return GetUndefinedMirror(); }; /** * Try to find a property from its value. * @param {Mirror} value The property value to look for * @return {PropertyMirror} The property with the specified value. If no * property was found with the specified value UndefinedMirror is returned */ ObjectMirror.prototype.lookupProperty = function(value) { var properties = this.properties(); // Look for property value in properties. for (var i = 0; i < properties.length; i++) { // Skip properties which are defined through assessors. var property = properties[i]; if (property.propertyType() != PropertyType.Callbacks) { if (%_ObjectEquals(property.value_, value.value_)) { return property; } } } // Nothing found. return GetUndefinedMirror(); }; /** * Returns objects which has direct references to this object * @param {number} opt_max_objects Optional parameter specifying the maximum * number of referencing objects to return. * @return {Array} The objects which has direct references to this object. */ ObjectMirror.prototype.referencedBy = function(opt_max_objects) { // Find all objects with direct references to this object. var result = %DebugReferencedBy(this.value_, Mirror.prototype, opt_max_objects || 0); // Make mirrors for all the references found. for (var i = 0; i < result.length; i++) { result[i] = MakeMirror(result[i]); } return result; }; ObjectMirror.prototype.toText = function() { var name; var ctor = this.constructorFunction(); if (!ctor.isFunction()) { name = this.className(); } else { name = ctor.name(); if (!name) { name = this.className(); } } return '#<' + name + '>'; }; /** * Mirror object for functions. * @param {function} value The function object reflected by this mirror. * @constructor * @extends ObjectMirror */ function FunctionMirror(value) { %_CallFunction(this, value, FUNCTION_TYPE, ObjectMirror); this.resolved_ = true; } inherits(FunctionMirror, ObjectMirror); /** * Returns whether the function is resolved. * @return {boolean} True if the function is resolved. Unresolved functions can * only originate as functions from stack frames */ FunctionMirror.prototype.resolved = function() { return this.resolved_; }; /** * Returns the name of the function. * @return {string} Name of the function */ FunctionMirror.prototype.name = function() { return %FunctionGetName(this.value_); }; /** * Returns the inferred name of the function. * @return {string} Name of the function */ FunctionMirror.prototype.inferredName = function() { return %FunctionGetInferredName(this.value_); }; /** * Returns the source code for the function. * @return {string or undefined} The source code for the function. If the * function is not resolved undefined will be returned. */ FunctionMirror.prototype.source = function() { // Return source if function is resolved. Otherwise just fall through to // return undefined. if (this.resolved()) { return builtins.FunctionSourceString(this.value_); } }; /** * Returns the script object for the function. * @return {ScriptMirror or undefined} Script object for the function or * undefined if the function has no script */ FunctionMirror.prototype.script = function() { // Return script if function is resolved. Otherwise just fall through // to return undefined. if (this.resolved()) { var script = %FunctionGetScript(this.value_); if (script) { return MakeMirror(script); } } }; /** * Returns the script source position for the function. Only makes sense * for functions which has a script defined. * @return {Number or undefined} in-script position for the function */ FunctionMirror.prototype.sourcePosition_ = function() { // Return script if function is resolved. Otherwise just fall through // to return undefined. if (this.resolved()) { return %FunctionGetScriptSourcePosition(this.value_); } }; /** * Returns the script source location object for the function. Only makes sense * for functions which has a script defined. * @return {Location or undefined} in-script location for the function begin */ FunctionMirror.prototype.sourceLocation = function() { if (this.resolved() && this.script()) { return this.script().locationFromPosition(this.sourcePosition_(), true); } }; /** * Returns objects constructed by this function. * @param {number} opt_max_instances Optional parameter specifying the maximum * number of instances to return. * @return {Array or undefined} The objects constructed by this function. */ FunctionMirror.prototype.constructedBy = function(opt_max_instances) { if (this.resolved()) { // Find all objects constructed from this function. var result = %DebugConstructedBy(this.value_, opt_max_instances || 0); // Make mirrors for all the instances found. for (var i = 0; i < result.length; i++) { result[i] = MakeMirror(result[i]); } return result; } else { return []; } }; FunctionMirror.prototype.toText = function() { return this.source(); }; /** * Mirror object for unresolved functions. * @param {string} value The name for the unresolved function reflected by this * mirror. * @constructor * @extends ObjectMirror */ function UnresolvedFunctionMirror(value) { // Construct this using the ValueMirror as an unresolved function is not a // real object but just a string. %_CallFunction(this, FUNCTION_TYPE, value, ValueMirror); this.propertyCount_ = 0; this.elementCount_ = 0; this.resolved_ = false; } inherits(UnresolvedFunctionMirror, FunctionMirror); UnresolvedFunctionMirror.prototype.className = function() { return 'Function'; }; UnresolvedFunctionMirror.prototype.constructorFunction = function() { return GetUndefinedMirror(); }; UnresolvedFunctionMirror.prototype.prototypeObject = function() { return GetUndefinedMirror(); }; UnresolvedFunctionMirror.prototype.protoObject = function() { return GetUndefinedMirror(); }; UnresolvedFunctionMirror.prototype.name = function() { return this.value_; }; UnresolvedFunctionMirror.prototype.inferredName = function() { return undefined; }; UnresolvedFunctionMirror.prototype.propertyNames = function(kind, limit) { return []; }; /** * Mirror object for arrays. * @param {Array} value The Array object reflected by this mirror * @constructor * @extends ObjectMirror */ function ArrayMirror(value) { %_CallFunction(this, value, ObjectMirror); } inherits(ArrayMirror, ObjectMirror); ArrayMirror.prototype.length = function() { return this.value_.length; }; ArrayMirror.prototype.indexedPropertiesFromRange = function(opt_from_index, opt_to_index) { var from_index = opt_from_index || 0; var to_index = opt_to_index || this.length() - 1; if (from_index > to_index) return new Array(); var values = new Array(to_index - from_index + 1); for (var i = from_index; i <= to_index; i++) { var details = %DebugGetPropertyDetails(this.value_, %ToString(i)); var value; if (details) { value = new PropertyMirror(this, i, details); } else { value = GetUndefinedMirror(); } values[i - from_index] = value; } return values; }; /** * Mirror object for dates. * @param {Date} value The Date object reflected by this mirror * @constructor * @extends ObjectMirror */ function DateMirror(value) { %_CallFunction(this, value, ObjectMirror); } inherits(DateMirror, ObjectMirror); DateMirror.prototype.toText = function() { var s = JSON.stringify(this.value_); return s.substring(1, s.length - 1); // cut quotes }; /** * Mirror object for regular expressions. * @param {RegExp} value The RegExp object reflected by this mirror * @constructor * @extends ObjectMirror */ function RegExpMirror(value) { %_CallFunction(this, value, REGEXP_TYPE, ObjectMirror); } inherits(RegExpMirror, ObjectMirror); /** * Returns the source to the regular expression. * @return {string or undefined} The source to the regular expression */ RegExpMirror.prototype.source = function() { return this.value_.source; }; /** * Returns whether this regular expression has the global (g) flag set. * @return {boolean} Value of the global flag */ RegExpMirror.prototype.global = function() { return this.value_.global; }; /** * Returns whether this regular expression has the ignore case (i) flag set. * @return {boolean} Value of the ignore case flag */ RegExpMirror.prototype.ignoreCase = function() { return this.value_.ignoreCase; }; /** * Returns whether this regular expression has the multiline (m) flag set. * @return {boolean} Value of the multiline flag */ RegExpMirror.prototype.multiline = function() { return this.value_.multiline; }; RegExpMirror.prototype.toText = function() { // Simpel to text which is used when on specialization in subclass. return "/" + this.source() + "/"; }; /** * Mirror object for error objects. * @param {Error} value The error object reflected by this mirror * @constructor * @extends ObjectMirror */ function ErrorMirror(value) { %_CallFunction(this, value, ERROR_TYPE, ObjectMirror); } inherits(ErrorMirror, ObjectMirror); /** * Returns the message for this eror object. * @return {string or undefined} The message for this eror object */ ErrorMirror.prototype.message = function() { return this.value_.message; }; ErrorMirror.prototype.toText = function() { // Use the same text representation as in messages.js. var text; try { str = %_CallFunction(this.value_, builtins.ErrorToString); } catch (e) { str = '#'; } return str; }; /** * Base mirror object for properties. * @param {ObjectMirror} mirror The mirror object having this property * @param {string} name The name of the property * @param {Array} details Details about the property * @constructor * @extends Mirror */ function PropertyMirror(mirror, name, details) { %_CallFunction(this, PROPERTY_TYPE, Mirror); this.mirror_ = mirror; this.name_ = name; this.value_ = details[0]; this.details_ = details[1]; if (details.length > 2) { this.exception_ = details[2]; this.getter_ = details[3]; this.setter_ = details[4]; } } inherits(PropertyMirror, Mirror); PropertyMirror.prototype.isReadOnly = function() { return (this.attributes() & PropertyAttribute.ReadOnly) != 0; }; PropertyMirror.prototype.isEnum = function() { return (this.attributes() & PropertyAttribute.DontEnum) == 0; }; PropertyMirror.prototype.canDelete = function() { return (this.attributes() & PropertyAttribute.DontDelete) == 0; }; PropertyMirror.prototype.name = function() { return this.name_; }; PropertyMirror.prototype.isIndexed = function() { for (var i = 0; i < this.name_.length; i++) { if (this.name_[i] < '0' || '9' < this.name_[i]) { return false; } } return true; }; PropertyMirror.prototype.value = function() { return MakeMirror(this.value_, false); }; /** * Returns whether this property value is an exception. * @return {booolean} True if this property value is an exception */ PropertyMirror.prototype.isException = function() { return this.exception_ ? true : false; }; PropertyMirror.prototype.attributes = function() { return %DebugPropertyAttributesFromDetails(this.details_); }; PropertyMirror.prototype.propertyType = function() { return %DebugPropertyTypeFromDetails(this.details_); }; PropertyMirror.prototype.insertionIndex = function() { return %DebugPropertyIndexFromDetails(this.details_); }; /** * Returns whether this property has a getter defined through __defineGetter__. * @return {booolean} True if this property has a getter */ PropertyMirror.prototype.hasGetter = function() { return this.getter_ ? true : false; }; /** * Returns whether this property has a setter defined through __defineSetter__. * @return {booolean} True if this property has a setter */ PropertyMirror.prototype.hasSetter = function() { return this.setter_ ? true : false; }; /** * Returns the getter for this property defined through __defineGetter__. * @return {Mirror} FunctionMirror reflecting the getter function or * UndefinedMirror if there is no getter for this property */ PropertyMirror.prototype.getter = function() { if (this.hasGetter()) { return MakeMirror(this.getter_); } else { return GetUndefinedMirror(); } }; /** * Returns the setter for this property defined through __defineSetter__. * @return {Mirror} FunctionMirror reflecting the setter function or * UndefinedMirror if there is no setter for this property */ PropertyMirror.prototype.setter = function() { if (this.hasSetter()) { return MakeMirror(this.setter_); } else { return GetUndefinedMirror(); } }; /** * Returns whether this property is natively implemented by the host or a set * through JavaScript code. * @return {boolean} True if the property is * UndefinedMirror if there is no setter for this property */ PropertyMirror.prototype.isNative = function() { return (this.propertyType() == PropertyType.Interceptor) || ((this.propertyType() == PropertyType.Callbacks) && !this.hasGetter() && !this.hasSetter()); }; var kFrameDetailsFrameIdIndex = 0; var kFrameDetailsReceiverIndex = 1; var kFrameDetailsFunctionIndex = 2; var kFrameDetailsArgumentCountIndex = 3; var kFrameDetailsLocalCountIndex = 4; var kFrameDetailsSourcePositionIndex = 5; var kFrameDetailsConstructCallIndex = 6; var kFrameDetailsAtReturnIndex = 7; var kFrameDetailsFlagsIndex = 8; var kFrameDetailsFirstDynamicIndex = 9; var kFrameDetailsNameIndex = 0; var kFrameDetailsValueIndex = 1; var kFrameDetailsNameValueSize = 2; var kFrameDetailsFlagDebuggerFrameMask = 1 << 0; var kFrameDetailsFlagOptimizedFrameMask = 1 << 1; var kFrameDetailsFlagInlinedFrameIndexMask = 7 << 2; /** * Wrapper for the frame details information retreived from the VM. The frame * details from the VM is an array with the following content. See runtime.cc * Runtime_GetFrameDetails. * 0: Id * 1: Receiver * 2: Function * 3: Argument count * 4: Local count * 5: Source position * 6: Construct call * 7: Is at return * 8: Flags (debugger frame, optimized frame, inlined frame index) * Arguments name, value * Locals name, value * Return value if any * @param {number} break_id Current break id * @param {number} index Frame number * @constructor */ function FrameDetails(break_id, index) { this.break_id_ = break_id; this.details_ = %GetFrameDetails(break_id, index); } FrameDetails.prototype.frameId = function() { %CheckExecutionState(this.break_id_); return this.details_[kFrameDetailsFrameIdIndex]; }; FrameDetails.prototype.receiver = function() { %CheckExecutionState(this.break_id_); return this.details_[kFrameDetailsReceiverIndex]; }; FrameDetails.prototype.func = function() { %CheckExecutionState(this.break_id_); return this.details_[kFrameDetailsFunctionIndex]; }; FrameDetails.prototype.isConstructCall = function() { %CheckExecutionState(this.break_id_); return this.details_[kFrameDetailsConstructCallIndex]; }; FrameDetails.prototype.isAtReturn = function() { %CheckExecutionState(this.break_id_); return this.details_[kFrameDetailsAtReturnIndex]; }; FrameDetails.prototype.isDebuggerFrame = function() { %CheckExecutionState(this.break_id_); var f = kFrameDetailsFlagDebuggerFrameMask; return (this.details_[kFrameDetailsFlagsIndex] & f) == f; }; FrameDetails.prototype.isOptimizedFrame = function() { %CheckExecutionState(this.break_id_); var f = kFrameDetailsFlagOptimizedFrameMask; return (this.details_[kFrameDetailsFlagsIndex] & f) == f; }; FrameDetails.prototype.isInlinedFrame = function() { return this.inlinedFrameIndex() > 0; }; FrameDetails.prototype.inlinedFrameIndex = function() { %CheckExecutionState(this.break_id_); var f = kFrameDetailsFlagInlinedFrameIndexMask; return (this.details_[kFrameDetailsFlagsIndex] & f) >> 2; }; FrameDetails.prototype.argumentCount = function() { %CheckExecutionState(this.break_id_); return this.details_[kFrameDetailsArgumentCountIndex]; }; FrameDetails.prototype.argumentName = function(index) { %CheckExecutionState(this.break_id_); if (index >= 0 && index < this.argumentCount()) { return this.details_[kFrameDetailsFirstDynamicIndex + index * kFrameDetailsNameValueSize + kFrameDetailsNameIndex]; } }; FrameDetails.prototype.argumentValue = function(index) { %CheckExecutionState(this.break_id_); if (index >= 0 && index < this.argumentCount()) { return this.details_[kFrameDetailsFirstDynamicIndex + index * kFrameDetailsNameValueSize + kFrameDetailsValueIndex]; } }; FrameDetails.prototype.localCount = function() { %CheckExecutionState(this.break_id_); return this.details_[kFrameDetailsLocalCountIndex]; }; FrameDetails.prototype.sourcePosition = function() { %CheckExecutionState(this.break_id_); return this.details_[kFrameDetailsSourcePositionIndex]; }; FrameDetails.prototype.localName = function(index) { %CheckExecutionState(this.break_id_); if (index >= 0 && index < this.localCount()) { var locals_offset = kFrameDetailsFirstDynamicIndex + this.argumentCount() * kFrameDetailsNameValueSize; return this.details_[locals_offset + index * kFrameDetailsNameValueSize + kFrameDetailsNameIndex]; } }; FrameDetails.prototype.localValue = function(index) { %CheckExecutionState(this.break_id_); if (index >= 0 && index < this.localCount()) { var locals_offset = kFrameDetailsFirstDynamicIndex + this.argumentCount() * kFrameDetailsNameValueSize; return this.details_[locals_offset + index * kFrameDetailsNameValueSize + kFrameDetailsValueIndex]; } }; FrameDetails.prototype.returnValue = function() { %CheckExecutionState(this.break_id_); var return_value_offset = kFrameDetailsFirstDynamicIndex + (this.argumentCount() + this.localCount()) * kFrameDetailsNameValueSize; if (this.details_[kFrameDetailsAtReturnIndex]) { return this.details_[return_value_offset]; } }; FrameDetails.prototype.scopeCount = function() { return %GetScopeCount(this.break_id_, this.frameId()); }; /** * Mirror object for stack frames. * @param {number} break_id The break id in the VM for which this frame is valid * @param {number} index The frame index (top frame is index 0) * @constructor * @extends Mirror */ function FrameMirror(break_id, index) { %_CallFunction(this, FRAME_TYPE, Mirror); this.break_id_ = break_id; this.index_ = index; this.details_ = new FrameDetails(break_id, index); } inherits(FrameMirror, Mirror); FrameMirror.prototype.index = function() { return this.index_; }; FrameMirror.prototype.func = function() { // Get the function for this frame from the VM. var f = this.details_.func(); // Create a function mirror. NOTE: MakeMirror cannot be used here as the // value returned from the VM might be a string if the function for the // frame is unresolved. if (IS_FUNCTION(f)) { return MakeMirror(f); } else { return new UnresolvedFunctionMirror(f); } }; FrameMirror.prototype.receiver = function() { return MakeMirror(this.details_.receiver()); }; FrameMirror.prototype.isConstructCall = function() { return this.details_.isConstructCall(); }; FrameMirror.prototype.isAtReturn = function() { return this.details_.isAtReturn(); }; FrameMirror.prototype.isDebuggerFrame = function() { return this.details_.isDebuggerFrame(); }; FrameMirror.prototype.isOptimizedFrame = function() { return this.details_.isOptimizedFrame(); }; FrameMirror.prototype.isInlinedFrame = function() { return this.details_.isInlinedFrame(); }; FrameMirror.prototype.inlinedFrameIndex = function() { return this.details_.inlinedFrameIndex(); }; FrameMirror.prototype.argumentCount = function() { return this.details_.argumentCount(); }; FrameMirror.prototype.argumentName = function(index) { return this.details_.argumentName(index); }; FrameMirror.prototype.argumentValue = function(index) { return MakeMirror(this.details_.argumentValue(index)); }; FrameMirror.prototype.localCount = function() { return this.details_.localCount(); }; FrameMirror.prototype.localName = function(index) { return this.details_.localName(index); }; FrameMirror.prototype.localValue = function(index) { return MakeMirror(this.details_.localValue(index)); }; FrameMirror.prototype.returnValue = function() { return MakeMirror(this.details_.returnValue()); }; FrameMirror.prototype.sourcePosition = function() { return this.details_.sourcePosition(); }; FrameMirror.prototype.sourceLocation = function() { if (this.func().resolved() && this.func().script()) { return this.func().script().locationFromPosition(this.sourcePosition(), true); } }; FrameMirror.prototype.sourceLine = function() { if (this.func().resolved()) { var location = this.sourceLocation(); if (location) { return location.line; } } }; FrameMirror.prototype.sourceColumn = function() { if (this.func().resolved()) { var location = this.sourceLocation(); if (location) { return location.column; } } }; FrameMirror.prototype.sourceLineText = function() { if (this.func().resolved()) { var location = this.sourceLocation(); if (location) { return location.sourceText(); } } }; FrameMirror.prototype.scopeCount = function() { return this.details_.scopeCount(); }; FrameMirror.prototype.scope = function(index) { return new ScopeMirror(this, index); }; FrameMirror.prototype.evaluate = function(source, disable_break, opt_context_object) { var result = %DebugEvaluate(this.break_id_, this.details_.frameId(), this.details_.inlinedFrameIndex(), source, Boolean(disable_break), opt_context_object); return MakeMirror(result); }; FrameMirror.prototype.invocationText = function() { // Format frame invoaction (receiver, function and arguments). var result = ''; var func = this.func(); var receiver = this.receiver(); if (this.isConstructCall()) { // For constructor frames display new followed by the function name. result += 'new '; result += func.name() ? func.name() : '[anonymous]'; } else if (this.isDebuggerFrame()) { result += '[debugger]'; } else { // If the receiver has a className which is 'global' don't display it. var display_receiver = !receiver.className || (receiver.className() != 'global'); if (display_receiver) { result += receiver.toText(); } // Try to find the function as a property in the receiver. Include the // prototype chain in the lookup. var property = GetUndefinedMirror(); if (receiver.isObject()) { for (var r = receiver; !r.isNull() && property.isUndefined(); r = r.protoObject()) { property = r.lookupProperty(func); } } if (!property.isUndefined()) { // The function invoked was found on the receiver. Use the property name // for the backtrace. if (!property.isIndexed()) { if (display_receiver) { result += '.'; } result += property.name(); } else { result += '['; result += property.name(); result += ']'; } // Also known as - if the name in the function doesn't match the name // under which it was looked up. if (func.name() && func.name() != property.name()) { result += '(aka ' + func.name() + ')'; } } else { // The function invoked was not found on the receiver. Use the function // name if available for the backtrace. if (display_receiver) { result += '.'; } result += func.name() ? func.name() : '[anonymous]'; } } // Render arguments for normal frames. if (!this.isDebuggerFrame()) { result += '('; for (var i = 0; i < this.argumentCount(); i++) { if (i != 0) result += ', '; if (this.argumentName(i)) { result += this.argumentName(i); result += '='; } result += this.argumentValue(i).toText(); } result += ')'; } if (this.isAtReturn()) { result += ' returning '; result += this.returnValue().toText(); } return result; }; FrameMirror.prototype.sourceAndPositionText = function() { // Format source and position. var result = ''; var func = this.func(); if (func.resolved()) { if (func.script()) { if (func.script().name()) { result += func.script().name(); } else { result += '[unnamed]'; } if (!this.isDebuggerFrame()) { var location = this.sourceLocation(); result += ' line '; result += !IS_UNDEFINED(location) ? (location.line + 1) : '?'; result += ' column '; result += !IS_UNDEFINED(location) ? (location.column + 1) : '?'; if (!IS_UNDEFINED(this.sourcePosition())) { result += ' (position ' + (this.sourcePosition() + 1) + ')'; } } } else { result += '[no source]'; } } else { result += '[unresolved]'; } return result; }; FrameMirror.prototype.localsText = function() { // Format local variables. var result = ''; var locals_count = this.localCount(); if (locals_count > 0) { for (var i = 0; i < locals_count; ++i) { result += ' var '; result += this.localName(i); result += ' = '; result += this.localValue(i).toText(); if (i < locals_count - 1) result += '\n'; } } return result; }; FrameMirror.prototype.toText = function(opt_locals) { var result = ''; result += '#' + (this.index() <= 9 ? '0' : '') + this.index(); result += ' '; result += this.invocationText(); result += ' '; result += this.sourceAndPositionText(); if (opt_locals) { result += '\n'; result += this.localsText(); } return result; }; var kScopeDetailsTypeIndex = 0; var kScopeDetailsObjectIndex = 1; function ScopeDetails(frame, index) { this.break_id_ = frame.break_id_; this.details_ = %GetScopeDetails(frame.break_id_, frame.details_.frameId(), frame.details_.inlinedFrameIndex(), index); } ScopeDetails.prototype.type = function() { %CheckExecutionState(this.break_id_); return this.details_[kScopeDetailsTypeIndex]; }; ScopeDetails.prototype.object = function() { %CheckExecutionState(this.break_id_); return this.details_[kScopeDetailsObjectIndex]; }; /** * Mirror object for scope. * @param {FrameMirror} frame The frame this scope is a part of * @param {number} index The scope index in the frame * @constructor * @extends Mirror */ function ScopeMirror(frame, index) { %_CallFunction(this, SCOPE_TYPE, Mirror); this.frame_index_ = frame.index_; this.scope_index_ = index; this.details_ = new ScopeDetails(frame, index); } inherits(ScopeMirror, Mirror); ScopeMirror.prototype.frameIndex = function() { return this.frame_index_; }; ScopeMirror.prototype.scopeIndex = function() { return this.scope_index_; }; ScopeMirror.prototype.scopeType = function() { return this.details_.type(); }; ScopeMirror.prototype.scopeObject = function() { // For local and closure scopes create a transient mirror as these objects are // created on the fly materializing the local or closure scopes and // therefore will not preserve identity. var transient = this.scopeType() == ScopeType.Local || this.scopeType() == ScopeType.Closure; return MakeMirror(this.details_.object(), transient); }; /** * Mirror object for script source. * @param {Script} script The script object * @constructor * @extends Mirror */ function ScriptMirror(script) { %_CallFunction(this, SCRIPT_TYPE, Mirror); this.script_ = script; this.context_ = new ContextMirror(script.context_data); this.allocateHandle_(); } inherits(ScriptMirror, Mirror); ScriptMirror.prototype.value = function() { return this.script_; }; ScriptMirror.prototype.name = function() { return this.script_.name || this.script_.nameOrSourceURL(); }; ScriptMirror.prototype.id = function() { return this.script_.id; }; ScriptMirror.prototype.source = function() { return this.script_.source; }; ScriptMirror.prototype.setSource = function(source) { %DebugSetScriptSource(this.script_, source); }; ScriptMirror.prototype.lineOffset = function() { return this.script_.line_offset; }; ScriptMirror.prototype.columnOffset = function() { return this.script_.column_offset; }; ScriptMirror.prototype.data = function() { return this.script_.data; }; ScriptMirror.prototype.scriptType = function() { return this.script_.type; }; ScriptMirror.prototype.compilationType = function() { return this.script_.compilation_type; }; ScriptMirror.prototype.lineCount = function() { return this.script_.lineCount(); }; ScriptMirror.prototype.locationFromPosition = function( position, include_resource_offset) { return this.script_.locationFromPosition(position, include_resource_offset); }; ScriptMirror.prototype.sourceSlice = function (opt_from_line, opt_to_line) { return this.script_.sourceSlice(opt_from_line, opt_to_line); }; ScriptMirror.prototype.context = function() { return this.context_; }; ScriptMirror.prototype.evalFromScript = function() { return MakeMirror(this.script_.eval_from_script); }; ScriptMirror.prototype.evalFromFunctionName = function() { return MakeMirror(this.script_.eval_from_function_name); }; ScriptMirror.prototype.evalFromLocation = function() { var eval_from_script = this.evalFromScript(); if (!eval_from_script.isUndefined()) { var position = this.script_.eval_from_script_position; return eval_from_script.locationFromPosition(position, true); } }; ScriptMirror.prototype.toText = function() { var result = ''; result += this.name(); result += ' (lines: '; if (this.lineOffset() > 0) { result += this.lineOffset(); result += '-'; result += this.lineOffset() + this.lineCount() - 1; } else { result += this.lineCount(); } result += ')'; return result; }; /** * Mirror object for context. * @param {Object} data The context data * @constructor * @extends Mirror */ function ContextMirror(data) { %_CallFunction(this, CONTEXT_TYPE, Mirror); this.data_ = data; this.allocateHandle_(); } inherits(ContextMirror, Mirror); ContextMirror.prototype.data = function() { return this.data_; }; /** * Returns a mirror serializer * * @param {boolean} details Set to true to include details * @param {Object} options Options comtrolling the serialization * The following options can be set: * includeSource: include ths full source of scripts * @returns {MirrorSerializer} mirror serializer */ function MakeMirrorSerializer(details, options) { return new JSONProtocolSerializer(details, options); } /** * Object for serializing a mirror objects and its direct references. * @param {boolean} details Indicates whether to include details for the mirror * serialized * @constructor */ function JSONProtocolSerializer(details, options) { this.details_ = details; this.options_ = options; this.mirrors_ = [ ]; } /** * Returns a serialization of an object reference. The referenced object are * added to the serialization state. * * @param {Mirror} mirror The mirror to serialize * @returns {String} JSON serialization */ JSONProtocolSerializer.prototype.serializeReference = function(mirror) { return this.serialize_(mirror, true, true); }; /** * Returns a serialization of an object value. The referenced objects are * added to the serialization state. * * @param {Mirror} mirror The mirror to serialize * @returns {String} JSON serialization */ JSONProtocolSerializer.prototype.serializeValue = function(mirror) { var json = this.serialize_(mirror, false, true); return json; }; /** * Returns a serialization of all the objects referenced. * * @param {Mirror} mirror The mirror to serialize. * @returns {Array.} Array of the referenced objects converted to * protcol objects. */ JSONProtocolSerializer.prototype.serializeReferencedObjects = function() { // Collect the protocol representation of the referenced objects in an array. var content = []; // Get the number of referenced objects. var count = this.mirrors_.length; for (var i = 0; i < count; i++) { content.push(this.serialize_(this.mirrors_[i], false, false)); } return content; }; JSONProtocolSerializer.prototype.includeSource_ = function() { return this.options_ && this.options_.includeSource; }; JSONProtocolSerializer.prototype.inlineRefs_ = function() { return this.options_ && this.options_.inlineRefs; }; JSONProtocolSerializer.prototype.maxStringLength_ = function() { if (IS_UNDEFINED(this.options_) || IS_UNDEFINED(this.options_.maxStringLength)) { return kMaxProtocolStringLength; } return this.options_.maxStringLength; }; JSONProtocolSerializer.prototype.add_ = function(mirror) { // If this mirror is already in the list just return. for (var i = 0; i < this.mirrors_.length; i++) { if (this.mirrors_[i] === mirror) { return; } } // Add the mirror to the list of mirrors to be serialized. this.mirrors_.push(mirror); }; /** * Formats mirror object to protocol reference object with some data that can * be used to display the value in debugger. * @param {Mirror} mirror Mirror to serialize. * @return {Object} Protocol reference object. */ JSONProtocolSerializer.prototype.serializeReferenceWithDisplayData_ = function(mirror) { var o = {}; o.ref = mirror.handle(); o.type = mirror.type(); switch (mirror.type()) { case UNDEFINED_TYPE: case NULL_TYPE: case BOOLEAN_TYPE: case NUMBER_TYPE: o.value = mirror.value(); break; case STRING_TYPE: o.value = mirror.getTruncatedValue(this.maxStringLength_()); break; case FUNCTION_TYPE: o.name = mirror.name(); o.inferredName = mirror.inferredName(); if (mirror.script()) { o.scriptId = mirror.script().id(); } break; case ERROR_TYPE: case REGEXP_TYPE: o.value = mirror.toText(); break; case OBJECT_TYPE: o.className = mirror.className(); break; } return o; }; JSONProtocolSerializer.prototype.serialize_ = function(mirror, reference, details) { // If serializing a reference to a mirror just return the reference and add // the mirror to the referenced mirrors. if (reference && (mirror.isValue() || mirror.isScript() || mirror.isContext())) { if (this.inlineRefs_() && mirror.isValue()) { return this.serializeReferenceWithDisplayData_(mirror); } else { this.add_(mirror); return {'ref' : mirror.handle()}; } } // Collect the JSON property/value pairs. var content = {}; // Add the mirror handle. if (mirror.isValue() || mirror.isScript() || mirror.isContext()) { content.handle = mirror.handle(); } // Always add the type. content.type = mirror.type(); switch (mirror.type()) { case UNDEFINED_TYPE: case NULL_TYPE: // Undefined and null are represented just by their type. break; case BOOLEAN_TYPE: // Boolean values are simply represented by their value. content.value = mirror.value(); break; case NUMBER_TYPE: // Number values are simply represented by their value. content.value = NumberToJSON_(mirror.value()); break; case STRING_TYPE: // String values might have their value cropped to keep down size. if (this.maxStringLength_() != -1 && mirror.length() > this.maxStringLength_()) { var str = mirror.getTruncatedValue(this.maxStringLength_()); content.value = str; content.fromIndex = 0; content.toIndex = this.maxStringLength_(); } else { content.value = mirror.value(); } content.length = mirror.length(); break; case OBJECT_TYPE: case FUNCTION_TYPE: case ERROR_TYPE: case REGEXP_TYPE: // Add object representation. this.serializeObject_(mirror, content, details); break; case PROPERTY_TYPE: throw new Error('PropertyMirror cannot be serialized independeltly'); break; case FRAME_TYPE: // Add object representation. this.serializeFrame_(mirror, content); break; case SCOPE_TYPE: // Add object representation. this.serializeScope_(mirror, content); break; case SCRIPT_TYPE: // Script is represented by id, name and source attributes. if (mirror.name()) { content.name = mirror.name(); } content.id = mirror.id(); content.lineOffset = mirror.lineOffset(); content.columnOffset = mirror.columnOffset(); content.lineCount = mirror.lineCount(); if (mirror.data()) { content.data = mirror.data(); } if (this.includeSource_()) { content.source = mirror.source(); } else { var sourceStart = mirror.source().substring(0, 80); content.sourceStart = sourceStart; } content.sourceLength = mirror.source().length; content.scriptType = mirror.scriptType(); content.compilationType = mirror.compilationType(); // For compilation type eval emit information on the script from which // eval was called if a script is present. if (mirror.compilationType() == 1 && mirror.evalFromScript()) { content.evalFromScript = this.serializeReference(mirror.evalFromScript()); var evalFromLocation = mirror.evalFromLocation(); if (evalFromLocation) { content.evalFromLocation = { line: evalFromLocation.line, column: evalFromLocation.column }; } if (mirror.evalFromFunctionName()) { content.evalFromFunctionName = mirror.evalFromFunctionName(); } } if (mirror.context()) { content.context = this.serializeReference(mirror.context()); } break; case CONTEXT_TYPE: content.data = mirror.data(); break; } // Always add the text representation. content.text = mirror.toText(); // Create and return the JSON string. return content; }; /** * Serialize object information to the following JSON format. * * {"className":"", * "constructorFunction":{"ref":}, * "protoObject":{"ref":}, * "prototypeObject":{"ref":}, * "namedInterceptor":, * "indexedInterceptor":, * "properties":[]} */ JSONProtocolSerializer.prototype.serializeObject_ = function(mirror, content, details) { // Add general object properties. content.className = mirror.className(); content.constructorFunction = this.serializeReference(mirror.constructorFunction()); content.protoObject = this.serializeReference(mirror.protoObject()); content.prototypeObject = this.serializeReference(mirror.prototypeObject()); // Add flags to indicate whether there are interceptors. if (mirror.hasNamedInterceptor()) { content.namedInterceptor = true; } if (mirror.hasIndexedInterceptor()) { content.indexedInterceptor = true; } // Add function specific properties. if (mirror.isFunction()) { // Add function specific properties. content.name = mirror.name(); if (!IS_UNDEFINED(mirror.inferredName())) { content.inferredName = mirror.inferredName(); } content.resolved = mirror.resolved(); if (mirror.resolved()) { content.source = mirror.source(); } if (mirror.script()) { content.script = this.serializeReference(mirror.script()); content.scriptId = mirror.script().id(); serializeLocationFields(mirror.sourceLocation(), content); } } // Add date specific properties. if (mirror.isDate()) { // Add date specific properties. content.value = mirror.value(); } // Add actual properties - named properties followed by indexed properties. var propertyNames = mirror.propertyNames(PropertyKind.Named); var propertyIndexes = mirror.propertyNames(PropertyKind.Indexed); var p = new Array(propertyNames.length + propertyIndexes.length); for (var i = 0; i < propertyNames.length; i++) { var propertyMirror = mirror.property(propertyNames[i]); p[i] = this.serializeProperty_(propertyMirror); if (details) { this.add_(propertyMirror.value()); } } for (var i = 0; i < propertyIndexes.length; i++) { var propertyMirror = mirror.property(propertyIndexes[i]); p[propertyNames.length + i] = this.serializeProperty_(propertyMirror); if (details) { this.add_(propertyMirror.value()); } } content.properties = p; }; /** * Serialize location information to the following JSON format: * * "position":"", * "line":"", * "column":"", * * @param {SourceLocation} location The location to serialize, may be undefined. */ function serializeLocationFields (location, content) { if (!location) { return; } content.position = location.position; var line = location.line; if (!IS_UNDEFINED(line)) { content.line = line; } var column = location.column; if (!IS_UNDEFINED(column)) { content.column = column; } } /** * Serialize property information to the following JSON format for building the * array of properties. * * {"name":"", * "attributes":, * "propertyType":, * "ref":} * * If the attribute for the property is PropertyAttribute.None it is not added. * If the propertyType for the property is PropertyType.Normal it is not added. * Here are a couple of examples. * * {"name":"hello","ref":1} * {"name":"length","attributes":7,"propertyType":3,"ref":2} * * @param {PropertyMirror} propertyMirror The property to serialize. * @returns {Object} Protocol object representing the property. */ JSONProtocolSerializer.prototype.serializeProperty_ = function(propertyMirror) { var result = {}; result.name = propertyMirror.name(); var propertyValue = propertyMirror.value(); if (this.inlineRefs_() && propertyValue.isValue()) { result.value = this.serializeReferenceWithDisplayData_(propertyValue); } else { if (propertyMirror.attributes() != PropertyAttribute.None) { result.attributes = propertyMirror.attributes(); } if (propertyMirror.propertyType() != PropertyType.Normal) { result.propertyType = propertyMirror.propertyType(); } result.ref = propertyValue.handle(); } return result; }; JSONProtocolSerializer.prototype.serializeFrame_ = function(mirror, content) { content.index = mirror.index(); content.receiver = this.serializeReference(mirror.receiver()); var func = mirror.func(); content.func = this.serializeReference(func); if (func.script()) { content.script = this.serializeReference(func.script()); } content.constructCall = mirror.isConstructCall(); content.atReturn = mirror.isAtReturn(); if (mirror.isAtReturn()) { content.returnValue = this.serializeReference(mirror.returnValue()); } content.debuggerFrame = mirror.isDebuggerFrame(); var x = new Array(mirror.argumentCount()); for (var i = 0; i < mirror.argumentCount(); i++) { var arg = {}; var argument_name = mirror.argumentName(i); if (argument_name) { arg.name = argument_name; } arg.value = this.serializeReference(mirror.argumentValue(i)); x[i] = arg; } content.arguments = x; var x = new Array(mirror.localCount()); for (var i = 0; i < mirror.localCount(); i++) { var local = {}; local.name = mirror.localName(i); local.value = this.serializeReference(mirror.localValue(i)); x[i] = local; } content.locals = x; serializeLocationFields(mirror.sourceLocation(), content); var source_line_text = mirror.sourceLineText(); if (!IS_UNDEFINED(source_line_text)) { content.sourceLineText = source_line_text; } content.scopes = []; for (var i = 0; i < mirror.scopeCount(); i++) { var scope = mirror.scope(i); content.scopes.push({ type: scope.scopeType(), index: i }); } }; JSONProtocolSerializer.prototype.serializeScope_ = function(mirror, content) { content.index = mirror.scopeIndex(); content.frameIndex = mirror.frameIndex(); content.type = mirror.scopeType(); content.object = this.inlineRefs_() ? this.serializeValue(mirror.scopeObject()) : this.serializeReference(mirror.scopeObject()); }; /** * Convert a number to a protocol value. For all finite numbers the number * itself is returned. For non finite numbers NaN, Infinite and * -Infinite the string representation "NaN", "Infinite" or "-Infinite" * (not including the quotes) is returned. * * @param {number} value The number value to convert to a protocol value. * @returns {number|string} Protocol value. */ function NumberToJSON_(value) { if (isNaN(value)) { return 'NaN'; } if (!NUMBER_IS_FINITE(value)) { if (value > 0) { return 'Infinity'; } else { return '-Infinity'; } } return value; }