diff options
Diffstat (limited to 'deps/v8/src/debug/mirrors.js')
| -rw-r--r-- | deps/v8/src/debug/mirrors.js | 2439 |
1 files changed, 0 insertions, 2439 deletions
diff --git a/deps/v8/src/debug/mirrors.js b/deps/v8/src/debug/mirrors.js deleted file mode 100644 index 99b6414f3a..0000000000 --- a/deps/v8/src/debug/mirrors.js +++ /dev/null @@ -1,2439 +0,0 @@ -// Copyright 2006-2012 the V8 project authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -(function(global, utils) { -"use strict"; - -// ---------------------------------------------------------------------------- -// Imports - -var GlobalArray = global.Array; -var IsNaN = global.isNaN; -var JSONStringify = global.JSON.stringify; -var MapEntries = global.Map.prototype.entries; -var MapIteratorNext = (new global.Map).entries().next; -var SetIteratorNext = (new global.Set).values().next; -var SetValues = global.Set.prototype.values; - -// ---------------------------------------------------------------------------- - -// Mirror hierarchy: -// - Mirror -// - ValueMirror -// - UndefinedMirror -// - NullMirror -// - BooleanMirror -// - NumberMirror -// - StringMirror -// - SymbolMirror -// - ObjectMirror -// - FunctionMirror -// - UnresolvedFunctionMirror -// - ArrayMirror -// - DateMirror -// - RegExpMirror -// - ErrorMirror -// - PromiseMirror -// - MapMirror -// - SetMirror -// - IteratorMirror -// - GeneratorMirror -// - PropertyMirror -// - InternalPropertyMirror -// - FrameMirror -// - ScriptMirror -// - ScopeMirror - -macro IS_BOOLEAN(arg) -(typeof(arg) === 'boolean') -endmacro - -macro IS_DATE(arg) -(%IsDate(arg)) -endmacro - -macro IS_ERROR(arg) -(%IsJSError(arg)) -endmacro - -macro IS_GENERATOR(arg) -(%IsJSGeneratorObject(arg)) -endmacro - -macro IS_MAP(arg) -(%_IsJSMap(arg)) -endmacro - -macro IS_MAP_ITERATOR(arg) -(%IsJSMapIterator(arg)) -endmacro - -macro IS_SCRIPT(arg) -(%IsScriptWrapper(arg)) -endmacro - -macro IS_SET(arg) -(%_IsJSSet(arg)) -endmacro - -macro IS_SET_ITERATOR(arg) -(%IsJSSetIterator(arg)) -endmacro - -// Must match PropertyFilter in property-details.h -define PROPERTY_FILTER_NONE = 0; - -// Type names of the different mirrors. -var MirrorType = { - UNDEFINED_TYPE : 'undefined', - NULL_TYPE : 'null', - BOOLEAN_TYPE : 'boolean', - NUMBER_TYPE : 'number', - STRING_TYPE : 'string', - SYMBOL_TYPE : 'symbol', - OBJECT_TYPE : 'object', - FUNCTION_TYPE : 'function', - REGEXP_TYPE : 'regexp', - ERROR_TYPE : 'error', - PROPERTY_TYPE : 'property', - INTERNAL_PROPERTY_TYPE : 'internalProperty', - FRAME_TYPE : 'frame', - SCRIPT_TYPE : 'script', - CONTEXT_TYPE : 'context', - SCOPE_TYPE : 'scope', - PROMISE_TYPE : 'promise', - MAP_TYPE : 'map', - SET_TYPE : 'set', - ITERATOR_TYPE : 'iterator', - GENERATOR_TYPE : 'generator', -} - -/** - * Returns the mirror for a specified value or object. - * - * @param {value or Object} value the value or object to retrieve the mirror for - * @returns {Mirror} the mirror reflects the passed value or object - */ -function MakeMirror(value) { - var 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_SYMBOL(value)) { - mirror = new SymbolMirror(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 (%IsRegExp(value)) { - mirror = new RegExpMirror(value); - } else if (IS_ERROR(value)) { - mirror = new ErrorMirror(value); - } else if (IS_SCRIPT(value)) { - mirror = new ScriptMirror(value); - } else if (IS_MAP(value) || IS_WEAKMAP(value)) { - mirror = new MapMirror(value); - } else if (IS_SET(value) || IS_WEAKSET(value)) { - mirror = new SetMirror(value); - } else if (IS_MAP_ITERATOR(value) || IS_SET_ITERATOR(value)) { - mirror = new IteratorMirror(value); - } else if (%is_promise(value)) { - mirror = new PromiseMirror(value); - } else if (IS_GENERATOR(value)) { - mirror = new GeneratorMirror(value); - } else { - mirror = new ObjectMirror(value, MirrorType.OBJECT_TYPE); - } - - return mirror; -} - - -/** - * Returns the mirror for the undefined value. - * - * @returns {Mirror} the mirror reflects the undefined value - */ -function GetUndefinedMirror() { - return MakeMirror(UNDEFINED); -} - - -/** - * 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; -} - -// Maximum length when sending strings through the JSON protocol. -var kMaxProtocolStringLength = 80; - - -// A copy of the PropertyKind enum from property-details.h -var PropertyType = {}; -PropertyType.Data = 0; -PropertyType.Accessor = 1; - - -// 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-debug.cc. -// NOTE: these constants should be backward-compatible, so -// add new ones to the end of this list. -var ScopeType = { Global: 0, - Local: 1, - With: 2, - Closure: 3, - Catch: 4, - Block: 5, - Script: 6, - Eval: 7, - Module: 8, - }; - -/** - * 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 a symbol. - * @returns {boolean} True if the mirror reflects a symbol - */ -Mirror.prototype.isSymbol = function() { - return this instanceof SymbolMirror; -}; - - -/** - * 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 promise. - * @returns {boolean} True if the mirror reflects a promise - */ -Mirror.prototype.isPromise = function() { - return this instanceof PromiseMirror; -}; - - -/** - * Check whether the mirror reflects a generator object. - * @returns {boolean} True if the mirror reflects a generator object - */ -Mirror.prototype.isGenerator = function() { - return this instanceof GeneratorMirror; -}; - - -/** - * 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 an internal property. - * @returns {boolean} True if the mirror reflects an internal property - */ -Mirror.prototype.isInternalProperty = function() { - return this instanceof InternalPropertyMirror; -}; - - -/** - * 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; -}; - - -/** - * Check whether the mirror reflects a map. - * @returns {boolean} True if the mirror reflects a map - */ -Mirror.prototype.isMap = function() { - return this instanceof MapMirror; -}; - - -/** - * Check whether the mirror reflects a set. - * @returns {boolean} True if the mirror reflects a set - */ -Mirror.prototype.isSet = function() { - return this instanceof SetMirror; -}; - - -/** - * Check whether the mirror reflects an iterator. - * @returns {boolean} True if the mirror reflects an iterator - */ -Mirror.prototype.isIterator = function() { - return this instanceof IteratorMirror; -}; - - -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 - * @constructor - * @extends Mirror - */ -function ValueMirror(type, value) { - %_Call(Mirror, this, type); - this.value_ = value; -} -inherits(ValueMirror, Mirror); - - -/** - * 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' || - type === 'symbol'; -}; - - -/** - * 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() { - %_Call(ValueMirror, this, MirrorType.UNDEFINED_TYPE, UNDEFINED); -} -inherits(UndefinedMirror, ValueMirror); - - -UndefinedMirror.prototype.toText = function() { - return 'undefined'; -}; - - -/** - * Mirror object for null. - * @constructor - * @extends ValueMirror - */ -function NullMirror() { - %_Call(ValueMirror, this, MirrorType.NULL_TYPE, null); -} -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) { - %_Call(ValueMirror, this, MirrorType.BOOLEAN_TYPE, value); -} -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) { - %_Call(ValueMirror, this, MirrorType.NUMBER_TYPE, value); -} -inherits(NumberMirror, ValueMirror); - - -NumberMirror.prototype.toText = function() { - return '' + this.value_; -}; - - -/** - * Mirror object for string values. - * @param {string} value The string value reflected by this mirror - * @constructor - * @extends ValueMirror - */ -function StringMirror(value) { - %_Call(ValueMirror, this, MirrorType.STRING_TYPE, value); -} -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 a Symbol - * @param {Object} value The Symbol - * @constructor - * @extends Mirror - */ -function SymbolMirror(value) { - %_Call(ValueMirror, this, MirrorType.SYMBOL_TYPE, value); -} -inherits(SymbolMirror, ValueMirror); - - -SymbolMirror.prototype.description = function() { - return %SymbolDescription(%ValueOf(this.value_)); -} - - -SymbolMirror.prototype.toText = function() { - return %SymbolDescriptiveString(%ValueOf(this.value_)); -} - - -/** - * Mirror object for objects. - * @param {object} value The object reflected by this mirror - * @constructor - * @extends ValueMirror - */ -function ObjectMirror(value, type) { - type = type || MirrorType.OBJECT_TYPE; - %_Call(ValueMirror, this, type, value); -} -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() { - return %GetOwnPropertyKeys(this.value_, PROPERTY_FILTER_NONE); -}; - - -/** - * 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 returned to the - specified value - * @return {Array} Property mirrors for this object - */ -ObjectMirror.prototype.properties = function() { - var names = this.propertyNames(); - var properties = new GlobalArray(names.length); - for (var i = 0; i < names.length; i++) { - properties[i] = this.property(names[i]); - } - - return properties; -}; - - -/** - * Return the internal properties for this object as an array of - * InternalPropertyMirror objects. - * @return {Array} Property mirrors for this object - */ -ObjectMirror.prototype.internalProperties = function() { - return ObjectMirror.GetInternalProperties(this.value_); -} - - -ObjectMirror.prototype.property = function(name) { - var details = %DebugGetPropertyDetails(this.value_, 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 accessors. - var property = properties[i]; - if (property.propertyType() == PropertyType.Data) { - if (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 + '>'; -}; - - -/** - * Return the internal properties of the value, such as [[PrimitiveValue]] of - * scalar wrapper objects, properties of the bound function and properties of - * the promise. - * This method is done static to be accessible from Debug API with the bare - * values without mirrors. - * @return {Array} array (possibly empty) of InternalProperty instances - */ -ObjectMirror.GetInternalProperties = function(value) { - var properties = %DebugGetInternalProperties(value); - var result = []; - for (var i = 0; i < properties.length; i += 2) { - result.push(new InternalPropertyMirror(properties[i], properties[i + 1])); - } - return result; -} - - -/** - * Mirror object for functions. - * @param {function} value The function object reflected by this mirror. - * @constructor - * @extends ObjectMirror - */ -function FunctionMirror(value) { - %_Call(ObjectMirror, this, value, MirrorType.FUNCTION_TYPE); - 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 displayName if it is set, otherwise name, otherwise inferred - * name. - * @return {string} Name of the function - */ -FunctionMirror.prototype.debugName = function() { - return %FunctionGetDebugName(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 %FunctionToString(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()) { - if (this.script_) { - return this.script_; - } - var script = %FunctionGetScript(this.value_); - if (script) { - return this.script_ = 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 position 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()) { - var script = this.script(); - if (script) { - return 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.scopeCount = function() { - if (this.resolved()) { - if (IS_UNDEFINED(this.scopeCount_)) { - this.scopeCount_ = %GetFunctionScopeCount(this.value()); - } - return this.scopeCount_; - } else { - return 0; - } -}; - - -FunctionMirror.prototype.scope = function(index) { - if (this.resolved()) { - return new ScopeMirror(UNDEFINED, this, UNDEFINED, index); - } -}; - - -FunctionMirror.prototype.toText = function() { - return this.source(); -}; - - -FunctionMirror.prototype.context = function() { - if (this.resolved()) { - if (!this._context) - this._context = new ContextMirror(%FunctionGetContextData(this.value_)); - return this._context; - } -}; - - -/** - * 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. - %_Call(ValueMirror, this, MirrorType.FUNCTION_TYPE, value); - 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.debugName = 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) { - %_Call(ObjectMirror, this, value); -} -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 GlobalArray(); - var values = new GlobalArray(to_index - from_index + 1); - for (var i = from_index; i <= to_index; i++) { - var details = %DebugGetPropertyDetails(this.value_, TO_STRING(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) { - %_Call(ObjectMirror, this, value); -} -inherits(DateMirror, ObjectMirror); - - -DateMirror.prototype.toText = function() { - var s = JSONStringify(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) { - %_Call(ObjectMirror, this, value, MirrorType.REGEXP_TYPE); -} -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; -}; - - -/** - * Returns whether this regular expression has the sticky (y) flag set. - * @return {boolean} Value of the sticky flag - */ -RegExpMirror.prototype.sticky = function() { - return this.value_.sticky; -}; - - -/** - * Returns whether this regular expression has the unicode (u) flag set. - * @return {boolean} Value of the unicode flag - */ -RegExpMirror.prototype.unicode = function() { - return this.value_.unicode; -}; - - -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) { - %_Call(ObjectMirror, this, value, MirrorType.ERROR_TYPE); -} -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 { - text = %ErrorToString(this.value_); - } catch (e) { - text = '#<Error>'; - } - return text; -}; - - -/** - * Mirror object for a Promise object. - * @param {Object} value The Promise object - * @constructor - * @extends ObjectMirror - */ -function PromiseMirror(value) { - %_Call(ObjectMirror, this, value, MirrorType.PROMISE_TYPE); -} -inherits(PromiseMirror, ObjectMirror); - - -function PromiseGetStatus_(value) { - var status = %PromiseStatus(value); - if (status == 0) return "pending"; - if (status == 1) return "resolved"; - return "rejected"; -} - - -function PromiseGetValue_(value) { - return %PromiseResult(value); -} - - -PromiseMirror.prototype.status = function() { - return PromiseGetStatus_(this.value_); -}; - - -PromiseMirror.prototype.promiseValue = function() { - return MakeMirror(PromiseGetValue_(this.value_)); -}; - - -function MapMirror(value) { - %_Call(ObjectMirror, this, value, MirrorType.MAP_TYPE); -} -inherits(MapMirror, ObjectMirror); - - -/** - * Returns an array of key/value pairs of a map. - * This will keep keys alive for WeakMaps. - * - * @param {number=} opt_limit Max elements to return. - * @returns {Array.<Object>} Array of key/value pairs of a map. - */ -MapMirror.prototype.entries = function(opt_limit) { - var result = []; - - if (IS_WEAKMAP(this.value_)) { - var entries = %GetWeakMapEntries(this.value_, opt_limit || 0); - for (var i = 0; i < entries.length; i += 2) { - result.push({ - key: entries[i], - value: entries[i + 1] - }); - } - return result; - } - - var iter = %_Call(MapEntries, this.value_); - var next; - while ((!opt_limit || result.length < opt_limit) && - !(next = iter.next()).done) { - result.push({ - key: next.value[0], - value: next.value[1] - }); - } - return result; -}; - - -function SetMirror(value) { - %_Call(ObjectMirror, this, value, MirrorType.SET_TYPE); -} -inherits(SetMirror, ObjectMirror); - - -function IteratorGetValues_(iter, next_function, opt_limit) { - var result = []; - var next; - while ((!opt_limit || result.length < opt_limit) && - !(next = %_Call(next_function, iter)).done) { - result.push(next.value); - } - return result; -} - - -/** - * Returns an array of elements of a set. - * This will keep elements alive for WeakSets. - * - * @param {number=} opt_limit Max elements to return. - * @returns {Array.<Object>} Array of elements of a set. - */ -SetMirror.prototype.values = function(opt_limit) { - if (IS_WEAKSET(this.value_)) { - return %GetWeakSetValues(this.value_, opt_limit || 0); - } - - var iter = %_Call(SetValues, this.value_); - return IteratorGetValues_(iter, SetIteratorNext, opt_limit); -}; - - -function IteratorMirror(value) { - %_Call(ObjectMirror, this, value, MirrorType.ITERATOR_TYPE); -} -inherits(IteratorMirror, ObjectMirror); - - -/** - * Returns a preview of elements of an iterator. - * Does not change the backing iterator state. - * - * @param {number=} opt_limit Max elements to return. - * @returns {Array.<Object>} Array of elements of an iterator. - */ -IteratorMirror.prototype.preview = function(opt_limit) { - if (IS_MAP_ITERATOR(this.value_)) { - return IteratorGetValues_(%MapIteratorClone(this.value_), - MapIteratorNext, - opt_limit); - } else if (IS_SET_ITERATOR(this.value_)) { - return IteratorGetValues_(%SetIteratorClone(this.value_), - SetIteratorNext, - opt_limit); - } -}; - - -/** - * Mirror object for a Generator object. - * @param {Object} data The Generator object - * @constructor - * @extends Mirror - */ -function GeneratorMirror(value) { - %_Call(ObjectMirror, this, value, MirrorType.GENERATOR_TYPE); -} -inherits(GeneratorMirror, ObjectMirror); - - -function GeneratorGetStatus_(value) { - var continuation = %GeneratorGetContinuation(value); - if (continuation < -1) return "running"; - if (continuation == -1) return "closed"; - return "suspended"; -} - - -GeneratorMirror.prototype.status = function() { - return GeneratorGetStatus_(this.value_); -}; - - -GeneratorMirror.prototype.sourcePosition_ = function() { - return %GeneratorGetSourcePosition(this.value_); -}; - - -GeneratorMirror.prototype.sourceLocation = function() { - var pos = this.sourcePosition_(); - if (!IS_UNDEFINED(pos)) { - var script = this.func().script(); - if (script) { - return script.locationFromPosition(pos, true); - } - } -}; - - -GeneratorMirror.prototype.func = function() { - if (!this.func_) { - this.func_ = MakeMirror(%GeneratorGetFunction(this.value_)); - } - return this.func_; -}; - - -GeneratorMirror.prototype.receiver = function() { - if (!this.receiver_) { - this.receiver_ = MakeMirror(%GeneratorGetReceiver(this.value_)); - } - return this.receiver_; -}; - - -GeneratorMirror.prototype.scopeCount = function() { - // This value can change over time as the underlying generator is suspended - // at different locations. - return %GetGeneratorScopeCount(this.value()); -}; - - -GeneratorMirror.prototype.scope = function(index) { - return new ScopeMirror(UNDEFINED, UNDEFINED, this, index); -}; - - -GeneratorMirror.prototype.allScopes = function() { - var scopes = []; - for (let i = 0; i < this.scopeCount(); i++) { - scopes.push(this.scope(i)); - } - return scopes; -}; - - -/** - * 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) { - %_Call(Mirror, this, MirrorType.PROPERTY_TYPE); - this.mirror_ = mirror; - this.name_ = name; - this.value_ = details[0]; - this.details_ = details[1]; - this.is_interceptor_ = details[2]; - if (details.length > 3) { - this.exception_ = details[3]; - this.getter_ = details[4]; - this.setter_ = details[5]; - } -} -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.toText = function() { - if (IS_SYMBOL(this.name_)) return %SymbolDescriptiveString(this.name_); - 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 {boolean} 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 %DebugPropertyKindFromDetails(this.details_); -}; - - -/** - * Returns whether this property has a getter defined through __defineGetter__. - * @return {boolean} 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 {boolean} 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.is_interceptor_ || - ((this.propertyType() == PropertyType.Accessor) && - !this.hasGetter() && !this.hasSetter()); -}; - - -/** - * Mirror object for internal properties. Internal property reflects properties - * not accessible from user code such as [[BoundThis]] in bound function. - * Their names are merely symbolic. - * @param {string} name The name of the property - * @param {value} property value - * @constructor - * @extends Mirror - */ -function InternalPropertyMirror(name, value) { - %_Call(Mirror, this, MirrorType.INTERNAL_PROPERTY_TYPE); - this.name_ = name; - this.value_ = value; -} -inherits(InternalPropertyMirror, Mirror); - - -InternalPropertyMirror.prototype.name = function() { - return this.name_; -}; - - -InternalPropertyMirror.prototype.value = function() { - return MakeMirror(this.value_, false); -}; - - -var kFrameDetailsFrameIdIndex = 0; -var kFrameDetailsReceiverIndex = 1; -var kFrameDetailsFunctionIndex = 2; -var kFrameDetailsScriptIndex = 3; -var kFrameDetailsArgumentCountIndex = 4; -var kFrameDetailsLocalCountIndex = 5; -var kFrameDetailsSourcePositionIndex = 6; -var kFrameDetailsConstructCallIndex = 7; -var kFrameDetailsAtReturnIndex = 8; -var kFrameDetailsFlagsIndex = 9; -var kFrameDetailsFirstDynamicIndex = 10; - -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: Script - * 4: Argument count - * 5: Local count - * 6: Source position - * 7: Construct call - * 8: Is at return - * 9: 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.script = function() { - %CheckExecutionState(this.break_id_); - return this.details_[kFrameDetailsScriptIndex]; -}; - - -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() { - if (IS_UNDEFINED(this.scopeCount_)) { - this.scopeCount_ = %GetScopeCount(this.break_id_, this.frameId()); - } - return this.scopeCount_; -}; - - -/** - * 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) { - %_Call(Mirror, this, MirrorType.FRAME_TYPE); - this.break_id_ = break_id; - this.index_ = index; - this.details_ = new FrameDetails(break_id, index); -} -inherits(FrameMirror, Mirror); - - -FrameMirror.prototype.details = function() { - return this.details_; -}; - - -FrameMirror.prototype.index = function() { - return this.index_; -}; - - -FrameMirror.prototype.func = function() { - if (this.func_) { - return this.func_; - } - - // 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 this.func_ = MakeMirror(f); - } else { - return new UnresolvedFunctionMirror(f); - } -}; - - -FrameMirror.prototype.script = function() { - if (!this.script_) { - this.script_ = MakeMirror(this.details_.script()); - } - - return this.script_; -} - - -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() { - var script = this.script(); - if (script) { - return script.locationFromPosition(this.sourcePosition(), true); - } -}; - - -FrameMirror.prototype.sourceLine = function() { - var location = this.sourceLocation(); - if (location) { - return location.line; - } -}; - - -FrameMirror.prototype.sourceColumn = function() { - var location = this.sourceLocation(); - if (location) { - return location.column; - } -}; - - -FrameMirror.prototype.sourceLineText = function() { - 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, UNDEFINED, UNDEFINED, index); -}; - - -FrameMirror.prototype.allScopes = function(opt_ignore_nested_scopes) { - var scopeDetails = %GetAllScopesDetails(this.break_id_, - this.details_.frameId(), - this.details_.inlinedFrameIndex(), - !!opt_ignore_nested_scopes); - var result = []; - for (var i = 0; i < scopeDetails.length; ++i) { - result.push(new ScopeMirror(this, UNDEFINED, UNDEFINED, i, - scopeDetails[i])); - } - return result; -}; - - -FrameMirror.prototype.evaluate = function(source, throw_on_side_effect = false) { - return MakeMirror(%DebugEvaluate(this.break_id_, - this.details_.frameId(), - this.details_.inlinedFrameIndex(), - source, - throw_on_side_effect)); -}; - - -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.toText(); - } else { - result += '['; - result += property.toText(); - 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()) { - var script = func.script(); - if (script) { - if (script.name()) { - result += 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.restart = function() { - var result = %LiveEditRestartFrame(this.break_id_, this.index_); - if (IS_UNDEFINED(result)) { - result = "Failed to find requested frame"; - } - 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; -}; - - -// This indexes correspond definitions in debug-scopes.h. -var kScopeDetailsTypeIndex = 0; -var kScopeDetailsObjectIndex = 1; -var kScopeDetailsNameIndex = 2; -var kScopeDetailsStartPositionIndex = 3; -var kScopeDetailsEndPositionIndex = 4; -var kScopeDetailsFunctionIndex = 5; - -function ScopeDetails(frame, fun, gen, index, opt_details) { - if (frame) { - this.break_id_ = frame.break_id_; - this.details_ = opt_details || - %GetScopeDetails(frame.break_id_, - frame.details_.frameId(), - frame.details_.inlinedFrameIndex(), - index); - this.frame_id_ = frame.details_.frameId(); - this.inlined_frame_id_ = frame.details_.inlinedFrameIndex(); - } else if (fun) { - this.details_ = opt_details || %GetFunctionScopeDetails(fun.value(), index); - this.fun_value_ = fun.value(); - this.break_id_ = UNDEFINED; - } else { - this.details_ = - opt_details || %GetGeneratorScopeDetails(gen.value(), index); - this.gen_value_ = gen.value(); - this.break_id_ = UNDEFINED; - } - this.index_ = index; -} - - -ScopeDetails.prototype.type = function() { - if (!IS_UNDEFINED(this.break_id_)) { - %CheckExecutionState(this.break_id_); - } - return this.details_[kScopeDetailsTypeIndex]; -}; - - -ScopeDetails.prototype.object = function() { - if (!IS_UNDEFINED(this.break_id_)) { - %CheckExecutionState(this.break_id_); - } - return this.details_[kScopeDetailsObjectIndex]; -}; - - -ScopeDetails.prototype.name = function() { - if (!IS_UNDEFINED(this.break_id_)) { - %CheckExecutionState(this.break_id_); - } - return this.details_[kScopeDetailsNameIndex]; -}; - - -ScopeDetails.prototype.startPosition = function() { - if (!IS_UNDEFINED(this.break_id_)) { - %CheckExecutionState(this.break_id_); - } - return this.details_[kScopeDetailsStartPositionIndex]; -} - - -ScopeDetails.prototype.endPosition = function() { - if (!IS_UNDEFINED(this.break_id_)) { - %CheckExecutionState(this.break_id_); - } - return this.details_[kScopeDetailsEndPositionIndex]; -} - -ScopeDetails.prototype.func = function() { - if (!IS_UNDEFINED(this.break_id_)) { - %CheckExecutionState(this.break_id_); - } - return this.details_[kScopeDetailsFunctionIndex]; -} - - -ScopeDetails.prototype.setVariableValueImpl = function(name, new_value) { - var raw_res; - if (!IS_UNDEFINED(this.break_id_)) { - %CheckExecutionState(this.break_id_); - raw_res = %SetScopeVariableValue(this.break_id_, this.frame_id_, - this.inlined_frame_id_, this.index_, name, new_value); - } else if (!IS_UNDEFINED(this.fun_value_)) { - raw_res = %SetScopeVariableValue(this.fun_value_, null, null, this.index_, - name, new_value); - } else { - raw_res = %SetScopeVariableValue(this.gen_value_, null, null, this.index_, - name, new_value); - } - if (!raw_res) throw %make_error(kDebugger, "Failed to set variable value"); -}; - - -/** - * Mirror object for scope of frame or function. Either frame or function must - * be specified. - * @param {FrameMirror} frame The frame this scope is a part of - * @param {FunctionMirror} function The function this scope is a part of - * @param {GeneratorMirror} gen The generator this scope is a part of - * @param {number} index The scope index in the frame - * @param {Array=} opt_details Raw scope details data - * @constructor - * @extends Mirror - */ -function ScopeMirror(frame, fun, gen, index, opt_details) { - %_Call(Mirror, this, MirrorType.SCOPE_TYPE); - if (frame) { - this.frame_index_ = frame.index_; - } else { - this.frame_index_ = UNDEFINED; - } - this.scope_index_ = index; - this.details_ = new ScopeDetails(frame, fun, gen, index, opt_details); -} -inherits(ScopeMirror, Mirror); - - -ScopeMirror.prototype.details = function() { - return this.details_; -}; - - -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, closure and script scopes create a mirror - // as these objects are created on the fly materializing the local - // or closure scopes and therefore will not preserve identity. - return MakeMirror(this.details_.object()); -}; - - -ScopeMirror.prototype.setVariableValue = function(name, new_value) { - this.details_.setVariableValueImpl(name, new_value); -}; - - -/** - * Mirror object for script source. - * @param {Script} script The script object - * @constructor - * @extends Mirror - */ -function ScriptMirror(script) { - %_Call(Mirror, this, MirrorType.SCRIPT_TYPE); - this.script_ = script; - this.context_ = new ContextMirror(script.context_data); -} -inherits(ScriptMirror, Mirror); - - -ScriptMirror.prototype.value = function() { - return this.script_; -}; - - -ScriptMirror.prototype.name = function() { - return this.script_.name || this.script_.source_url; -}; - - -ScriptMirror.prototype.id = function() { - return this.script_.id; -}; - - -ScriptMirror.prototype.source = function() { - return this.script_.source; -}; - - -ScriptMirror.prototype.setSource = function(source) { - if (!IS_STRING(source)) throw %make_error(kDebugger, "Source is not a string"); - %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 %ScriptLineCount(this.script_); -}; - - -ScriptMirror.prototype.locationFromPosition = function( - position, include_resource_offset) { - return %ScriptPositionInfo(this.script_, position, !!include_resource_offset); -}; - - -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) { - %_Call(Mirror, this, MirrorType.CONTEXT_TYPE); - this.data_ = data; -} -inherits(ContextMirror, Mirror); - - -ContextMirror.prototype.data = function() { - return this.data_; -}; - -// ---------------------------------------------------------------------------- -// Exports - -utils.InstallConstants(global, [ - "MakeMirror", MakeMirror, - "ScopeType", ScopeType, - "PropertyType", PropertyType, - "PropertyAttribute", PropertyAttribute, - "Mirror", Mirror, - "ValueMirror", ValueMirror, - "UndefinedMirror", UndefinedMirror, - "NullMirror", NullMirror, - "BooleanMirror", BooleanMirror, - "NumberMirror", NumberMirror, - "StringMirror", StringMirror, - "SymbolMirror", SymbolMirror, - "ObjectMirror", ObjectMirror, - "FunctionMirror", FunctionMirror, - "UnresolvedFunctionMirror", UnresolvedFunctionMirror, - "ArrayMirror", ArrayMirror, - "DateMirror", DateMirror, - "RegExpMirror", RegExpMirror, - "ErrorMirror", ErrorMirror, - "PromiseMirror", PromiseMirror, - "MapMirror", MapMirror, - "SetMirror", SetMirror, - "IteratorMirror", IteratorMirror, - "GeneratorMirror", GeneratorMirror, - "PropertyMirror", PropertyMirror, - "InternalPropertyMirror", InternalPropertyMirror, - "FrameMirror", FrameMirror, - "ScriptMirror", ScriptMirror, - "ScopeMirror", ScopeMirror, - "FrameDetails", FrameDetails, -]); - -}) |