private static ObjectInstance __STUB__Construct(ScriptEngine engine, FunctionInstance thisObj, FunctionInstance newTarget, object[] args)
{
switch (args.Length)
{
case 0:
return(((BooleanConstructor)thisObj).Construct(false));
default:
return(((BooleanConstructor)thisObj).Construct(TypeUtilities.IsUndefined(args[0]) ? false : TypeConverter.ToBoolean(args[0])));
}
}
/// <summary>
/// Creates a new Promise instance.
/// </summary>
/// <param name="prototype"></param>
/// <param name="executor"></param>
internal PromiseInstance(ObjectInstance prototype, FunctionInstance executor) : this(prototype)
{
try
{
executor.Call(Undefined.Value, resolveFunction, rejectFunction);
}
catch (JavaScriptException ex)
{
rejectFunction.Call(Undefined.Value, ex.ErrorObject);
}
}
private static ObjectInstance __STUB__Construct(ScriptEngine engine, FunctionInstance thisObj, FunctionInstance newTarget, object[] args)
{
switch (args.Length)
{
case 0:
throw new JavaScriptException(ErrorType.TypeError, "undefined cannot be converted to an object");
default:
return(((PromiseConstructor)thisObj).Construct(TypeConverter.ToObject <FunctionInstance>(engine, args[0])));
}
}
private static ObjectInstance __STUB__Construct(ScriptEngine engine, FunctionInstance thisObj, FunctionInstance newTarget, object[] args)
{
switch (args.Length)
{
case 0:
return(((WeakMapConstructor)thisObj).Construct(Undefined.Value));
default:
return(((WeakMapConstructor)thisObj).Construct(args[0]));
}
}
public PromiseInstance Reject(object reason)
{
ClrStubFunction func = new ClrStubFunction(this.Engine.FunctionInstancePrototype, (engine, thisObj, args) =>
{
FunctionInstance resolve = (FunctionInstance)args[0];
FunctionInstance reject = (FunctionInstance)args[1];
reject.Call(thisObj, reason);
return(Undefined.Value);
});
return(this.Construct(func));
}
public void ForEach(FunctionInstance callback, object thisArg)
{
foreach (var keyValue in TypeUtilities.Iterate(Engine, Entries()))
{
var keyValueObj = keyValue as ObjectInstance;
if (keyValueObj == null)
{
throw new JavaScriptException(Engine, ErrorType.TypeError, "Invalid iterator return value.");
}
callback.Call(thisArg, keyValueObj[0], keyValueObj[1], this);
}
}
public TypedArrayInstance From(object source, FunctionInstance mapFn = null, object thisArg = null)
{
var items = TypeConverter.ToObject(Engine, source);
var iterator = TypeUtilities.GetIterator(Engine, items);
if (iterator != null)
{
// Loop.
var values = new List <object>();
foreach (var value in TypeUtilities.Iterate(Engine, iterator))
{
// Collect the values.
values.Add(value);
}
// Convert the values into a typed array instance.
var result = new TypedArrayInstance(this.InstancePrototype, this.type,
Engine.ArrayBuffer.Construct(values.Count * BytesPerElement), 0, values.Count);
for (int i = 0; i < values.Count; i++)
{
if (mapFn != null)
{
result[i] = mapFn.Call(thisArg, values[i], i);
}
else
{
result[i] = values[i];
}
}
return(result);
}
else
{
// There was no iterator symbol value, so fall back on the alternate method.
int length = TypeConverter.ToInt32(items["length"]);
var result = new TypedArrayInstance(this.InstancePrototype, this.type, Engine.ArrayBuffer.Construct(length * BytesPerElement), 0, length);
for (int i = 0; i < length; i++)
{
if (mapFn != null)
{
result[i] = mapFn.Call(thisArg, items[i], i);
}
else
{
result[i] = items[i];
}
}
return(result);
}
}
private static ObjectInstance __STUB__Construct(ScriptEngine engine, FunctionInstance thisObj, FunctionInstance newTarget, object[] args)
{
switch (args.Length)
{
case 0:
return(((RegExpConstructor)thisObj).Construct(newTarget, Undefined.Value, null));
case 1:
return(((RegExpConstructor)thisObj).Construct(newTarget, args[0], null));
default:
return(((RegExpConstructor)thisObj).Construct(newTarget, args[0], TypeUtilities.IsUndefined(args[1]) ? null : TypeConverter.ToString(args[1])));
}
}
/// <summary>
/// Calls the given user-defined function once per element in the array.
/// </summary>
/// <param name="callbackFunction"> A user-defined function that is called for each element in the
/// array. This function is called with three arguments: the value of the element, the
/// index of the element, and the array that is being operated on. </param>
/// <param name="context"> The value of <c>this</c> in the context of the callback function. </param>
public void ForEach(FunctionInstance callbackFunction, ObjectInstance context)
{
for (int i = 0; i < Length; i++)
{
// Get the value of the array element.
object elementValue = this[i];
// Only call the callback function for array elements that exist in the array.
if (elementValue != null)
{
// Call the callback function.
callbackFunction.CallFromNative("forEach", context, elementValue, i, WrappedInstance);
}
}
}
/// <summary>
/// Creates a new Promise instance.
/// </summary>
/// <param name="prototype"></param>
internal PromiseInstance(ObjectInstance prototype) : base(prototype)
{
resolveFunction = new ClrStubFunction(Engine.FunctionInstancePrototype, "", 1,
(engine, thisObj, args) =>
{
Resolve(args.Length >= 1 ? args[0] : Undefined.Value);
return(Undefined.Value);
});
rejectFunction = new ClrStubFunction(Engine.FunctionInstancePrototype, "", 1,
(engine, thisObj, args) =>
{
Reject(args.Length >= 1 ? args[0] : Undefined.Value);
return(Undefined.Value);
});
}
private static ObjectInstance __STUB__Construct(ScriptEngine engine, FunctionInstance thisObj, FunctionInstance newTarget, object[] args)
{
switch (args.Length)
{
case 0:
return(((DataViewConstructor)thisObj).Construct(null, 0, null));
case 1:
return(((DataViewConstructor)thisObj).Construct(TypeUtilities.IsUndefined(args[0]) ? null : TypeConverter.ToObject <ArrayBufferInstance>(engine, args[0]), 0, null));
case 2:
return(((DataViewConstructor)thisObj).Construct(TypeUtilities.IsUndefined(args[0]) ? null : TypeConverter.ToObject <ArrayBufferInstance>(engine, args[0]), TypeUtilities.IsUndefined(args[1]) ? 0 : TypeConverter.ToInteger(args[1]), null));
default:
return(((DataViewConstructor)thisObj).Construct(TypeUtilities.IsUndefined(args[0]) ? null : TypeConverter.ToObject <ArrayBufferInstance>(engine, args[0]), TypeUtilities.IsUndefined(args[1]) ? 0 : TypeConverter.ToInteger(args[1]), TypeUtilities.IsUndefined(args[2]) ? (int?)null : TypeConverter.ToInteger(args[2])));
}
}
// INITIALIZATION
//_________________________________________________________________________________________
/// <summary>
/// Creates a new instance of a user-defined function.
/// </summary>
/// <param name="prototype"> The next object in the prototype chain. </param>
/// <param name="targetFunction"> The function that was bound. </param>
/// <param name="boundThis"> The value of the "this" parameter when the target function is called. </param>
/// <param name="boundArguments"> Zero or more bound argument values. </param>
internal BoundFunction(FunctionInstance targetFunction, object boundThis, object[] boundArguments)
: base(targetFunction.Prototype)
{
if (targetFunction == null)
throw new ArgumentNullException("targetFunction");
if (boundArguments == null)
boundArguments = new object[0];
this.TargetFunction = targetFunction;
this.BoundThis = boundThis;
this.BoundArguments = boundArguments;
// Add function properties.
this.FastSetProperty("name", targetFunction.Name);
this.FastSetProperty("length", Math.Max(targetFunction.Length - boundArguments.Length, 0));
this.FastSetProperty("prototype", this.Engine.Object.Construct(), PropertyAttributes.Writable);
this.InstancePrototype.FastSetProperty("constructor", this, PropertyAttributes.NonEnumerable);
}
protected virtual void ResetScriptEngine(ScriptSource source, IJinxBotClient client)
{
_jsEngine = new ScriptEngine();
_host = new JsHost(_jsEngine, client);
_jsEngine.Execute(source);
__accountCreated = GetFunc("accountCreated");
__accountCreationFailed = GetFunc("accountCreationFailed");
__adChanged = GetFunc("adChanged");
__channelDidNotExist = GetFunc("channelDidNotExist");
__channelListReceived = GetFunc("channelListReceived");
__channelWasFull = GetFunc("channelWasFull");
__channelWasRestricted = GetFunc("channelWasRestricted");
__clientCheckFailed = GetFunc("clientCheckFailed");
__clientCheckPassed = GetFunc("clientCheckPassed");
__commandSent = GetFunc("commandSent");
__connected = GetFunc("connected");
__disconnected = GetFunc("disconnected");
__enteredChat = GetFunc("enteredChat");
__error = GetFunc("error");
__friendAdded = GetFunc("friendAdded");
__friendListReceived = GetFunc("friendListReceived");
__friendMoved = GetFunc("friendMoved");
__friendRemoved = GetFunc("friendRemoved");
__friendUpdated = GetFunc("friendUpdated");
__information = GetFunc("information");
__informationReceived = GetFunc("informationReceived");
__joinedChannel = GetFunc("joinedChannel");
__loginFailed = GetFunc("loginFailed");
__loginSucceeded = GetFunc("loginSucceeded");
__messageSent = GetFunc("messageSent");
__profileLookupFailed = GetFunc("profileLookupFailed");
__serverBroadcast = GetFunc("serverBroadcast");
__serverErrorReceived = GetFunc("serverErrorReceived");
__serverNews = GetFunc("serverNews");
__userEmoted = GetFunc("userEmoted");
__userFlagsChanged = GetFunc("userFlagsChanged");
__userJoined = GetFunc("userJoined");
__userLeft = GetFunc("userLeft");
__userProfileReceived = GetFunc("userProfileReceived");
__userShown = GetFunc("userShown");
__userSpoke = GetFunc("userSpoke");
__warcraftProfileReceived = GetFunc("warcraftProfileReceived");
__whisperReceived = GetFunc("whisperReceived");
__whisperSent = GetFunc("whisperSent");
}
/// <summary>
/// Determines if at least one element of the array matches criteria defined by the given
/// user-defined function.
/// </summary>
/// <param name="callbackFunction"> A user-defined function that is called for each element in the
/// array. This function is called with three arguments: the value of the element, the
/// index of the element, and the array that is being operated on. The function should
/// return <c>true</c> or <c>false</c>. </param>
/// <param name="context"> The value of <c>this</c> in the context of the callback function. </param>
/// <returns> <c>true</c> if at least one element of the array matches criteria defined by
/// the given user-defined function; <c>false</c> otherwise. </returns>
public bool Some(FunctionInstance callbackFunction, ObjectInstance context)
{
for (int i = 0; i < Length; i++)
{
// Get the value of the array element.
object elementValue = this[i];
// Only call the callback function for array elements that exist in the array.
if (elementValue != null)
{
// Call the callback function.
if (TypeConverter.ToBoolean(callbackFunction.CallFromNative("some", context, elementValue, i, WrappedInstance)) == true)
{
return(true);
}
}
}
return(false);
}
/// <summary>
/// Creates a new Promise instance.
/// </summary>
/// <param name="prototype"></param>
/// <param name="executor"></param>
internal PromiseInstance(ObjectInstance prototype, FunctionInstance executor) : base(prototype)
{
FunctionInstance resolveFunc = new ClrStubFunction(Engine.FunctionInstancePrototype, (engine, thisObj, param) =>
{
return(Undefined.Value);
});
FunctionInstance rejectFunc = new ClrStubFunction(Engine.FunctionInstancePrototype, (engine, thisObj, param) =>
{
return(Undefined.Value);
});
try
{
executor.Call(Undefined.Value, resolveFunc, rejectFunc);
}
catch (JavaScriptException ex)
{
rejectFunc.Call(Undefined.Value, ex.ErrorObject);
}
}
/// <summary>
/// Creates a new Promise instance.
/// </summary>
/// <param name="prototype"></param>
/// <param name="executor"></param>
internal PromiseInstance(ObjectInstance prototype, FunctionInstance executor)
: base(prototype)
{
FunctionInstance resolveFunc = new ClrStubFunction(Engine.FunctionInstancePrototype, (engine, thisObj, param) =>
{
return Undefined.Value;
});
FunctionInstance rejectFunc = new ClrStubFunction(Engine.FunctionInstancePrototype, (engine, thisObj, param) =>
{
return Undefined.Value;
});
try
{
executor.Call(Undefined.Value, resolveFunc, rejectFunc);
}
catch (JavaScriptException ex)
{
rejectFunc.Call(Undefined.Value, ex.ErrorObject);
}
}
// INITIALIZATION
//_________________________________________________________________________________________
/// <summary>
/// Creates a new instance of a user-defined function.
/// </summary>
/// <param name="prototype"> The next object in the prototype chain. </param>
/// <param name="targetFunction"> The function that was bound. </param>
/// <param name="boundThis"> The value of the "this" parameter when the target function is called. </param>
/// <param name="boundArguments"> Zero or more bound argument values. </param>
internal BoundFunction(FunctionInstance targetFunction, object boundThis, object[] boundArguments)
: base(targetFunction.Prototype)
{
if (targetFunction == null)
{
throw new ArgumentNullException("targetFunction");
}
if (boundArguments == null)
{
boundArguments = new object[0];
}
this.TargetFunction = targetFunction;
this.BoundThis = boundThis;
this.BoundArguments = boundArguments;
// Add function properties.
this.FastSetProperty("name", targetFunction.Name);
this.FastSetProperty("length", Math.Max(targetFunction.Length - boundArguments.Length, 0));
this.FastSetProperty("prototype", this.Engine.Object.Construct(), PropertyAttributes.Writable);
this.InstancePrototype.FastSetProperty("constructor", this, PropertyAttributes.NonEnumerable);
}
/// <summary>
/// Returns a copy of this string with text replaced using a replacement function.
/// </summary>
/// <param name="thisObject"> The string that is being operated on. </param>
/// <param name="substr"> The text to search for. </param>
/// <param name="replaceFunction"> A function that is called to produce the text to replace
/// for every successful match. </param>
/// <returns> A copy of this string with text replaced. </returns>
public static string Replace(string thisObject, string substr, FunctionInstance replaceFunction)
{
// Find the first occurrance of substr.
int start = thisObject.IndexOf(substr, StringComparison.Ordinal);
if (start == -1)
{
return(thisObject);
}
int end = start + substr.Length;
// Get the replacement text from the provided function.
var replaceText = TypeConverter.ToString(replaceFunction.CallFromNative("replace", null, substr, start, thisObject));
// Replace only the first match.
var result = new System.Text.StringBuilder(thisObject.Length + (replaceText.Length - substr.Length));
result.Append(thisObject, 0, start);
result.Append(replaceText);
result.Append(thisObject, end, thisObject.Length - end);
return(result.ToString());
}
/// <summary>
/// Creates an object, using this function as the constructor.
/// </summary>
/// <param name="newTarget"> The value of 'new.target'. </param>
/// <param name="argumentValues"> An array of argument values to pass to the function. </param>
/// <returns> The object that was created. </returns>
public override ObjectInstance ConstructLateBound(FunctionInstance newTarget, params object[] argumentValues)
{
// Append the provided argument values to the end of the existing bound argument values.
var resultingArgumentValues = argumentValues;
if (this.BoundArguments.Length > 0)
{
if (argumentValues == null || argumentValues.Length == 0)
{
resultingArgumentValues = this.BoundArguments;
}
else
{
resultingArgumentValues = new object[this.BoundArguments.Length + argumentValues.Length];
Array.Copy(this.BoundArguments, resultingArgumentValues, this.BoundArguments.Length);
Array.Copy(argumentValues, 0, resultingArgumentValues, this.BoundArguments.Length, argumentValues.Length);
}
}
// Call the target function.
return(this.TargetFunction.ConstructLateBound(newTarget, resultingArgumentValues));
}
/// <summary>
/// Accumulates a single value by calling a user-defined function for each element
/// (starting with the last element in the array).
/// </summary>
/// <param name="callbackFunction"> A user-defined function that is called for each element
/// in the array. This function is called with four arguments: the current accumulated
/// value, the value of the element, the index of the element, and the array that is being
/// operated on. The return value for this function is the new accumulated value and is
/// passed to the next invocation of the function. </param>
/// <param name="initialValue"> The initial accumulated value. </param>
/// <returns> The accumulated value returned from the last invocation of the callback
/// function. </returns>
public object ReduceRight(FunctionInstance callbackFunction, object initialValue)
{
// If an initial value is not provided, the initial value is the last (defined) element.
int i = Length - 1;
object accumulatedValue = initialValue;
if (accumulatedValue == null)
{
// Scan for a defined element.
for (; i >= 0; i--)
{
if (this[i] != null)
{
accumulatedValue = this[i--];
break;
}
}
if (accumulatedValue == null)
{
throw new JavaScriptException(ErrorType.TypeError, "Reduce of empty array with no initial value");
}
}
// Scan from high to to low.
for (; i >= 0; i--)
{
// Get the value of the array element.
object elementValue = this[i];
// Only call the callback function for array elements that exist in the array.
if (elementValue != null)
{
// Call the callback function.
accumulatedValue = callbackFunction.CallFromNative("reduceRight", Undefined.Value, accumulatedValue, elementValue, i, WrappedInstance);
}
}
return(accumulatedValue);
}
// INITIALIZATION
//_________________________________________________________________________________________
/// <summary>
/// Creates a new instance of a user-defined function.
/// </summary>
/// <param name="prototype"> The next object in the prototype chain. </param>
/// <param name="targetFunction"> The function that was bound. </param>
/// <param name="boundThis"> The value of the "this" parameter when the target function is called. </param>
/// <param name="boundArguments"> Zero or more bound argument values. </param>
internal BoundFunction(FunctionInstance targetFunction, object boundThis, object[] boundArguments)
: base(targetFunction.Prototype)
{
if (targetFunction == null)
throw new ArgumentNullException("targetFunction");
if (boundArguments == null)
boundArguments = new object[0];
this.TargetFunction = targetFunction;
this.BoundThis = boundThis;
this.BoundArguments = boundArguments;
// Add function properties.
this.FastSetProperty("name", targetFunction.Name);
this.FastSetProperty("length", Math.Max(targetFunction.Length - boundArguments.Length, 0));
this.FastSetProperty("prototype", this.Engine.Object.Construct(), PropertyAttributes.Writable);
this.InstancePrototype.FastSetProperty("constructor", this, PropertyAttributes.NonEnumerable);
// Caller and arguments cannot be accessed.
var thrower = new ThrowTypeErrorFunction(this.Engine.Function, "The 'caller' or 'arguments' properties cannot be accessed on a bound function.");
var accessor = new PropertyAccessorValue(thrower, thrower);
this.FastSetProperty("caller", accessor, PropertyAttributes.IsAccessorProperty, overwriteAttributes: true);
this.FastSetProperty("arguments", accessor, PropertyAttributes.IsAccessorProperty, overwriteAttributes: true);
}
/// <summary>
/// Creates an object, using this function as the constructor.
/// </summary>
/// <param name="newTarget"> The value of 'new.target'. </param>
/// <param name="argumentValues"> An array of argument values. </param>
/// <returns> The object that was created. </returns>
public override ObjectInstance ConstructLateBound(FunctionInstance newTarget, params object[] argumentValues)
{
object result;
if (argumentValues.Length == 0 && this.WrappedType.IsValueType)
{
result = Activator.CreateInstance(this.WrappedType);
}
else
{
if (this.constructBinder == null)
{
throw new JavaScriptException(ErrorType.TypeError, string.Format("The type '{0}' has no public constructors", this.WrappedType));
}
result = this.constructBinder.Call(this.Engine, this, argumentValues);
}
if (result is ObjectInstance)
{
return((ObjectInstance)result);
}
return(new ClrInstanceWrapper(this.Engine, result));
}
private RegExpInstance Construct(FunctionInstance newTarget, object patternOrRegExp, string flags = null)
{
var prototype = (newTarget["prototype"] as ObjectInstance) ?? this.InstancePrototype;
if (patternOrRegExp is RegExpInstance regExp)
{
// new RegExp(regExp, flags)
if (flags != null)
{
return(new RegExpInstance(prototype, regExp.Source, flags));
}
return(new RegExpInstance(prototype, regExp));
}
else if (patternOrRegExp is ObjectInstance regExpLike && TypeConverter.ToBoolean(regExpLike[Symbol.Match]))
{
// new RegExp(regExp-like, flags)
var pattern = TypeConverter.ToString(regExpLike["source"], string.Empty);
if (flags == null)
{
flags = TypeConverter.ToString(regExpLike["flags"], null);
}
return(new RegExpInstance(prototype, pattern, flags));
}
/// <summary>
/// Creates an object, using this function as the constructor.
/// </summary>
/// <param name="newTarget"> The value of 'new.target'. </param>
/// <param name="argumentValues"> An array of argument values. </param>
/// <returns> The object that was created. </returns>
public override ObjectInstance ConstructLateBound(FunctionInstance newTarget, params object[] argumentValues)
{
// Create a new object and set the prototype to the instance prototype of the function.
var newObject = ObjectInstance.CreateRawObject(newTarget.InstancePrototype);
// Run the function, with the new object as the "this" keyword.
var context = ExecutionContext.CreateConstructContext(
engine: this.Engine,
parentScope: this.ParentScope,
thisValue: newObject,
executingFunction: this,
newTarget: newTarget,
functionContainer: null);
var result = this.body(context, argumentValues);
// Return the result of the function if it is an object.
if (result is ObjectInstance)
{
return((ObjectInstance)result);
}
// Otherwise, return the new object.
return(newObject);
}
/// <summary>
/// Creates a new array with the results of calling the given function on every element in
/// this array.
/// </summary>
/// <param name="callbackFunction"> A user-defined function that is called for each element
/// in the array. This function is called with three arguments: the value of the element,
/// the index of the element, and the array that is being operated on. The value that is
/// returned from this function is stored in the resulting array. </param>
/// <param name="context"> The value of <c>this</c> in the context of the callback function. </param>
/// <returns> A new array with the results of calling the given function on every element
/// in the array. </returns>
public ObjectInstance Map(FunctionInstance callbackFunction, ObjectInstance context)
{
// Create a new array to hold the new values.
// The length of the output array is always equal to the length of the input array.
var resultArray = new T[Length];
for (int i = 0; i < Length; i++)
{
// Get the value of the array element.
object elementValue = this[i];
// Only call the callback function for array elements that exist in the array.
if (elementValue != null)
{
// Call the callback function.
object result = callbackFunction.CallFromNative("map", context, elementValue, i, WrappedInstance);
// Store the result.
resultArray[i] = ConvertValue(result);
}
}
return(ConstructArray(resultArray));
}
/// <summary>
/// Returns an index in the typed array, if an element in the typed array satisfies the
/// provided testing function. Otherwise -1 is returned.
/// </summary>
/// <param name="callbackFunction"> A user-defined function that is called for each element in the
/// array. This function is called with three arguments: the value of the element, the
/// index of the element, and the array that is being operated on. The function should
/// return <c>true</c> or <c>false</c>. </param>
/// <param name="context"> The value of <c>this</c> in the context of the callback function. </param>
/// <returns> The first element that results in the callback returning <c>true</c>. </returns>
public int FindIndex(FunctionInstance callbackFunction, ObjectInstance context)
{
for (int i = 0; i < Length; i++)
{
// Get the value of the array element.
object elementValue = this[i];
// Only call the callback function for array elements that exist in the array.
if (elementValue != null)
{
// Call the callback function.
bool result = TypeConverter.ToBoolean(callbackFunction.CallFromNative("findIndex", context, elementValue, i, WrappedInstance));
// Return if the result was true.
if (result == true)
{
return(i);
}
}
}
// No matches, return undefined.
return(-1);
}
/// <summary>
/// Returns a copy of the given string with text replaced using a regular expression.
/// </summary>
/// <param name="input"> The string on which to perform the search. </param>
/// <param name="replaceFunction"> A function that is called to produce the text to replace
/// for every successful match. </param>
/// <returns> A copy of the given string with text replaced using a regular expression. </returns>
public string Replace(string input, FunctionInstance replaceFunction)
{
return(this.value.Replace(input, match =>
{
// Set the deprecated RegExp properties.
this.Engine.RegExp.SetDeprecatedProperties(input, match);
object[] parameters = new object[match.Groups.Count + 2];
for (int i = 0; i < match.Groups.Count; i++)
{
if (match.Groups[i].Success == false)
{
parameters[i] = Undefined.Value;
}
else
{
parameters[i] = match.Groups[i].Value;
}
}
parameters[match.Groups.Count] = match.Index;
parameters[match.Groups.Count + 1] = input;
return TypeConverter.ToString(replaceFunction.CallFromNative("replace", null, parameters));
}, this.Global == true ? int.MaxValue : 1));
}
public void Load(string url, FunctionInstance callback)
{
new Thread((ThreadStart)delegate
{
string data = null;
try
{
data = webClient.DownloadString(url);
}
catch (Exception e)
{
scriptRunner.Execute(callback, data, new JavaScriptException(Engine, "Error", "Error in download", e));
}
})
{
Name = "JsLoader"
}.Start();
}
/// <summary>
/// Creates a new PropertyAccessorValue instance.
/// </summary>
/// <param name="getter"> The getter function, or <c>null</c> if no getter was provided. </param>
/// <param name="setter"> The setter function, or <c>null</c> if no setter was provided. </param>
public PropertyAccessorValue(FunctionInstance getter, FunctionInstance setter)
{
this.getter = getter;
this.setter = setter;
}
/// <summary>
/// Creates a new PropertyDescriptor instance with a getter function and, optionally, a
/// setter function.
/// </summary>
/// <param name="getter"> The function to call to retrieve the property value. </param>
/// <param name="setter"> The function to call to set the property value. </param>
/// <param name="attributes"> The property attributes (whether the property is writable or
/// not is implied by whether there is a setter function). </param>
public PropertyDescriptor(FunctionInstance getter, FunctionInstance setter, PropertyAttributes attributes)
: this(new PropertyAccessorValue(getter, setter), attributes)
{
}
public TypedArrayInstance From(object source, FunctionInstance mapFn = null, object thisArg = null)
{
var items = TypeConverter.ToObject(Engine, source);
var iterator = TypeUtilities.GetIterator(Engine, items);
if (iterator != null)
{
// Loop.
var values = new List<object>();
foreach (var value in TypeUtilities.Iterate(Engine, iterator))
{
// Collect the values.
values.Add(value);
}
// Convert the values into a typed array instance.
var result = new TypedArrayInstance(this.InstancePrototype, this.type,
Engine.ArrayBuffer.Construct(values.Count * BytesPerElement), 0, values.Count);
for (int i = 0; i < values.Count; i++)
{
if (mapFn != null)
result[i] = mapFn.Call(thisArg, values[i], i);
else
result[i] = values[i];
}
return result;
}
else
{
// There was no iterator symbol value, so fall back on the alternate method.
int length = TypeConverter.ToInt32(items["length"]);
var result = new TypedArrayInstance(this.InstancePrototype, this.type, Engine.ArrayBuffer.Construct(length * BytesPerElement), 0, length);
for (int i = 0; i < length; i++)
{
if (mapFn != null)
result[i] = mapFn.Call(thisArg, items[i], i);
else
result[i] = items[i];
}
return result;
}
}
private void SetInterval(int id, FunctionInstance function, double delay, DateTime previous)
{
var self = this;
var finnishTime = previous.AddMilliseconds(delay);
Task.Factory.StartNew(() =>
{
self.cancellationTokenSource.Token.ThrowIfCancellationRequested();
TimeSpan timeout = finnishTime - DateTime.Now;
if (timeout < TimeSpan.Zero)
timeout = TimeSpan.Zero;
self.cancellationTokenSource.Token.WaitHandle.WaitOne(timeout);
self.cancellationTokenSource.Token.ThrowIfCancellationRequested();
lock (self)
{
if (!self.intervals.Contains(id))
return;
}
self.scriptRunner.BeginInvoke(delegate
{
function.Call(self.Engine.Global);
});
SetInterval(id, function, delay, finnishTime);
}, self.cancellationTokenSource.Token);
}
public static int SetInterval(ScriptEngine engine, FunctionInstance function, double delay)
{
var self = timeoutHandlers[engine];
int id;
lock (self)
{
do
{
id = self.nextId++;
} while (self.timeouts.Contains(id) || self.intervals.Contains(id));
self.intervals.Add(id);
}
self.SetInterval(id, function, delay, DateTime.Now);
return id;
}
public static ArrayInstance From(ScriptEngine engine, ObjectInstance iterable, FunctionInstance mapFunction, object thisArg)
{
var result = new List <object>();
var iterator = TypeUtilities.GetIterator(engine, iterable);
if (iterator != null)
{
// Initialize the array from an iterator.
int index = 0;
foreach (var item in TypeUtilities.Iterate(engine, iterator))
{
object mappedValue = mapFunction?.Call(thisArg ?? Undefined.Value, item, index) ?? item;
result.Add(mappedValue);
index++;
}
}
else
{
// Initialize the array from an array-like object.
uint length = ArrayInstance.GetLength(iterable);
for (int i = 0; i < length; i++)
{
object mappedValue = mapFunction?.Call(thisArg ?? Undefined.Value, iterable[i], i) ?? iterable[i];
result.Add(mappedValue);
}
}
return(engine.Array.New(result.ToArray()));
}
private static ObjectInstance __STUB__Construct(ScriptEngine engine, FunctionInstance thisObj, FunctionInstance newTarget, object[] args)
{
switch (args.Length)
{
case 0:
return(((FunctionConstructor)thisObj).Construct(new string[0]));
default:
return(((FunctionConstructor)thisObj).Construct(TypeConverter.ConvertParameterArrayTo <string>(engine, args, 0)));
}
}
public static ArrayInstance Map(ObjectInstance thisObj, FunctionInstance callbackFunction, [DefaultParameterValue(null)] ObjectInstance context = null)
{
// callbackFunction must be a valid function.
if (callbackFunction == null)
throw new JavaScriptException(thisObj.Engine, "TypeError", "Invalid callback function");
// Get the length of the array.
uint arrayLength = GetLength(thisObj);
// This method only supports arrays of length up to 2^31-1.
if (arrayLength > int.MaxValue)
throw new JavaScriptException(thisObj.Engine, "RangeError", "The array is too long");
// Create a new array to hold the new values.
// The length of the output array is always equal to the length of the input array.
var resultArray = new ArrayInstance(thisObj.Engine.Array.InstancePrototype, arrayLength, arrayLength);
for (int i = 0; i < arrayLength; i++)
{
// Get the value of the array element.
object elementValue = thisObj[(uint)i];
// Only call the callback function for array elements that exist in the array.
if (elementValue != null)
{
// Call the callback function.
object result = callbackFunction.CallLateBound(context, elementValue, i, thisObj);
// Store the result.
resultArray[(uint)i] = result;
}
}
return resultArray;
}
public static object ReduceRight(ObjectInstance thisObj, FunctionInstance callbackFunction, [DefaultParameterValue(null)] object initialValue = null)
{
// callbackFunction must be a valid function.
if (callbackFunction == null)
throw new JavaScriptException(thisObj.Engine, "TypeError", "Invalid callback function");
// Get the length of the array.
uint arrayLength = GetLength(thisObj);
// This method only supports arrays of length up to 2^31-1.
if (arrayLength > int.MaxValue)
throw new JavaScriptException(thisObj.Engine, "RangeError", "The array is too long");
// If an initial value is not provided, the initial value is the last (defined) element.
int i = (int)arrayLength - 1;
object accumulatedValue = initialValue;
if (accumulatedValue == null)
{
// Scan for a defined element.
for (; i >= 0; i--)
{
if (thisObj[(uint)i] != null)
{
accumulatedValue = thisObj[(uint)(i--)];
break;
}
}
if (accumulatedValue == null)
throw new JavaScriptException(thisObj.Engine, "TypeError", "Reduce of empty array with no initial value");
}
// Scan from high to to low.
for (; i >= 0; i--)
{
// Get the value of the array element.
object elementValue = thisObj[(uint)i];
// Only call the callback function for array elements that exist in the array.
if (elementValue != null)
{
// Call the callback function.
accumulatedValue = callbackFunction.CallLateBound(Undefined.Value, accumulatedValue, elementValue, i, thisObj);
}
}
return accumulatedValue;
}
public void Exists(string path, FunctionInstance callback) {
ThreadPool.QueueUserWorkItem(new WaitCallback(ExistsAsync), new object[] { path, callback });
}
/// <summary>
/// Returns a copy of this string with text replaced using a replacement function.
/// </summary>
/// <param name="substr"> The text to search for. </param>
/// <param name="replaceFunction"> A function that is called to produce the text to replace
/// for every successful match. </param>
/// <returns> A copy of this string with text replaced. </returns>
public static string Replace(string thisObject, string substr, FunctionInstance replaceFunction)
{
// Find the first occurrance of substr.
int start = thisObject.IndexOf(substr, StringComparison.Ordinal);
if (start == -1)
return thisObject;
int end = start + substr.Length;
// Get the replacement text from the provided function.
var replaceText = TypeConverter.ToString(replaceFunction.CallFromNative("replace", null, substr, start, thisObject));
// Replace only the first match.
var result = new System.Text.StringBuilder(thisObject.Length + (replaceText.Length - substr.Length));
result.Append(thisObject, 0, start);
result.Append(replaceText);
result.Append(thisObject, end, thisObject.Length - end);
return result.ToString();
}
public static void ForEach(ObjectInstance thisObj, FunctionInstance callbackFunction, [DefaultParameterValue(null)] ObjectInstance context = null)
{
// callbackFunction must be a valid function.
if (callbackFunction == null)
throw new JavaScriptException(thisObj.Engine, "TypeError", "Invalid callback function");
// Get the length of the array.
uint arrayLength = GetLength(thisObj);
// This method only supports arrays of length up to 2^31-1.
if (arrayLength > int.MaxValue)
throw new JavaScriptException(thisObj.Engine, "RangeError", "The array is too long");
for (int i = 0; i < arrayLength; i++)
{
// Get the value of the array element.
object elementValue = thisObj[(uint)i];
// Only call the callback function for array elements that exist in the array.
if (elementValue != null)
{
// Call the callback function.
callbackFunction.CallFromNative("forEach", context, elementValue, i, thisObj);
}
}
}
public BinHeapInstance Construct(FunctionInstance func)
{
return new BinHeapInstance(InstancePrototype, func);
}
public FuncExe(FunctionInstance instance)
{
_instance = instance;
}
/// <summary>
/// Returns a copy of this string with text replaced using a regular expression and a
/// replacement function.
/// </summary>
/// <param name="thisObject"> The string that is being operated on. </param>
/// <param name="regExp"> The regular expression to search for. </param>
/// <param name="replaceFunction"> A function that is called to produce the text to replace
/// for every successful match. </param>
/// <returns> A copy of this string with text replaced using a regular expression. </returns>
public static string Replace(string thisObject, RegExpInstance regExp, FunctionInstance replaceFunction)
{
return(regExp.Replace(thisObject, replaceFunction));
}
public static int SetTimeout(ScriptEngine engine, FunctionInstance function, double delay)
{
var self = timeoutHandlers[engine];
var finnishTime = DateTime.Now.AddMilliseconds(delay);
int id;
lock (self)
{
do
{
id = self.nextId++;
} while (self.timeouts.Contains(id) || self.intervals.Contains(id));
self.timeouts.Add(id);
}
Task.Factory.StartNew(() =>
{
self.cancellationTokenSource.Token.ThrowIfCancellationRequested();
TimeSpan timeout = finnishTime - DateTime.Now;
if (timeout < TimeSpan.Zero)
timeout = TimeSpan.Zero;
self.cancellationTokenSource.Token.WaitHandle.WaitOne(timeout);
self.cancellationTokenSource.Token.ThrowIfCancellationRequested();
lock (self)
{
if (!self.timeouts.Contains(id))
return;
self.timeouts.Remove(id);
}
self.scriptRunner.BeginInvoke(delegate
{
function.Call(self.Engine.Global);
});
}, self.cancellationTokenSource.Token);
return id;
}
private static ObjectInstance __STUB__Construct(ScriptEngine engine, FunctionInstance thisObj, FunctionInstance newTarget, object[] args)
{
return(((SymbolConstructor)thisObj).Construct());
}
private static ObjectInstance __STUB__Construct(ScriptEngine engine, FunctionInstance thisObj, FunctionInstance newTarget, object[] args)
{
switch (args.Length)
{
case 0:
return(((ArrayConstructor)thisObj).Construct(newTarget, new object[0]));
default:
return(((ArrayConstructor)thisObj).Construct(newTarget, args));
}
}
public void Listen(string eventName, FunctionInstance fn)
{
if (!events.ContainsKey(eventName))
events.Add(eventName, new List<FunctionInstance>());
events[eventName].Add(fn);
}
private void Initialize()
{
Require = new RequireFunction(this);
}
/// <summary>
/// Returns a copy of the given string with text replaced using a regular expression.
/// </summary>
/// <param name="input"> The string on which to perform the search. </param>
/// <param name="replaceFunction"> A function that is called to produce the text to replace
/// for every successful match. </param>
/// <returns> A copy of the given string with text replaced using a regular expression. </returns>
public string Replace(string input, FunctionInstance replaceFunction)
{
return this.value.Replace(input, match =>
{
// Set the deprecated RegExp properties.
this.Engine.RegExp.SetDeprecatedProperties(input, match);
object[] parameters = new object[match.Groups.Count + 2];
for (int i = 0; i < match.Groups.Count; i++)
{
if (match.Groups[i].Success == false)
parameters[i] = Undefined.Value;
else
parameters[i] = match.Groups[i].Value;
}
parameters[match.Groups.Count] = match.Index;
parameters[match.Groups.Count + 1] = input;
return TypeConverter.ToString(replaceFunction.CallFromNative("replace", null, parameters));
}, this.Global == true ? int.MaxValue : 1);
}
public BinHeapInstance(ObjectInstance prototype, FunctionInstance func)
: base(prototype)
{
_heap = new List<ObjectInstance>();
_func = func;
}
/// <summary>
/// Creates a new PropertyDescriptor instance with a getter function and, optionally, a
/// setter function.
/// </summary>
/// <param name="getter"> The function to call to retrieve the property value. </param>
/// <param name="setter"> The function to call to set the property value. </param>
/// <param name="attributes"> The property attributes (whether the property is writable or
/// not is implied by whether there is a setter function). </param>
public PropertyDescriptor(FunctionInstance getter, FunctionInstance setter, PropertyAttributes attributes)
: this(new PropertyAccessorValue(getter, setter), attributes)
{
}
// INITIALIZATION
//_________________________________________________________________________________________
/// <summary>
/// Creates a new Function object.
/// </summary>
/// <param name="prototype"> The next object in the prototype chain. </param>
/// <param name="instancePrototype"> The prototype for instances created by this function. </param>
internal FunctionConstructor(ObjectInstance prototype, FunctionInstance instancePrototype)
: base(prototype, "Function", instancePrototype)
{
}
public void NextTick(FunctionInstance callback)
{
// node.js actually performs these callbacks at the end of the current tick, which
// is nearly as fast as calling them synchronous regarding reaction time. We could
// also do this with a seperate queue, though for now it's just an immediate.
(Context.GetModule("timers") as Timers).SetImmediate(callback, new object[] { });
}
// OBJECT SERIALIZATION AND DESERIALIZATION
//_________________________________________________________________________________________
/// <summary>
/// Creates a property descriptor from an object containing any of the following
/// properties: configurable, writable, enumerable, value, get, set.
/// </summary>
/// <param name="obj"> The object to get the property values from. </param>
/// <param name="defaults"> The values to use if the relevant value is not specified. </param>
/// <returns> A PropertyDescriptor that corresponds to the object. </returns>
public static PropertyDescriptor FromObject(ObjectInstance obj, PropertyDescriptor defaults)
{
if (obj == null)
{
return(PropertyDescriptor.Undefined);
}
// Read configurable attribute.
bool configurable = defaults.IsConfigurable;
if (obj.HasProperty("configurable"))
{
configurable = TypeConverter.ToBoolean(obj["configurable"]);
}
// Read writable attribute.
bool writable = defaults.IsWritable;
if (obj.HasProperty("writable"))
{
writable = TypeConverter.ToBoolean(obj["writable"]);
}
// Read enumerable attribute.
bool enumerable = defaults.IsEnumerable;
if (obj.HasProperty("enumerable"))
{
enumerable = TypeConverter.ToBoolean(obj["enumerable"]);
}
// Read property value.
object value = defaults.Value;
if (obj.HasProperty("value"))
{
value = obj["value"];
}
// The descriptor is an accessor if get or set is present.
bool isAccessor = false;
// Read get accessor.
FunctionInstance getter = defaults.Getter;
if (obj.HasProperty("get"))
{
if (obj.HasProperty("value"))
{
throw new JavaScriptException(obj.Engine, ErrorType.TypeError, "Property descriptors cannot have both 'get' and 'value' set");
}
if (obj.HasProperty("writable"))
{
throw new JavaScriptException(obj.Engine, ErrorType.TypeError, "Property descriptors with 'get' or 'set' defined must not have 'writable' set");
}
if (obj["get"] is FunctionInstance)
{
getter = (FunctionInstance)obj["get"];
}
else if (TypeUtilities.IsUndefined(obj["get"]) == true)
{
getter = null;
}
else
{
throw new JavaScriptException(obj.Engine, ErrorType.TypeError, "Property descriptor 'get' must be a function");
}
isAccessor = true;
}
// Read set accessor.
FunctionInstance setter = defaults.Setter;
if (obj.HasProperty("set"))
{
if (obj.HasProperty("value"))
{
throw new JavaScriptException(obj.Engine, ErrorType.TypeError, "Property descriptors cannot have both 'set' and 'value' set");
}
if (obj.HasProperty("writable"))
{
throw new JavaScriptException(obj.Engine, ErrorType.TypeError, "Property descriptors with 'get' or 'set' defined must not have 'writable' set");
}
if (obj["set"] is FunctionInstance)
{
setter = (FunctionInstance)obj["set"];
}
else if (TypeUtilities.IsUndefined(obj["set"]) == true)
{
setter = null;
}
else
{
throw new JavaScriptException(obj.Engine, ErrorType.TypeError, "Property descriptor 'set' must be a function");
}
isAccessor = true;
}
// Build up the attributes enum.
PropertyAttributes attributes = PropertyAttributes.Sealed;
if (configurable == true)
{
attributes |= PropertyAttributes.Configurable;
}
if (writable == true)
{
attributes |= PropertyAttributes.Writable;
}
if (enumerable == true)
{
attributes |= PropertyAttributes.Enumerable;
}
// Either a value or an accessor is possible.
object descriptorValue = value;
if (isAccessor == true)
{
descriptorValue = new PropertyAccessorValue(getter, setter);
}
// Create the new property descriptor.
return(new PropertyDescriptor(descriptorValue, attributes));
}
public static bool Some(ObjectInstance thisObj, FunctionInstance callbackFunction, [DefaultParameterValue(null)] ObjectInstance context = null)
{
// callbackFunction must be a valid function.
if (callbackFunction == null)
throw new JavaScriptException(thisObj.Engine, "TypeError", "Invalid callback function");
// Get the length of the array.
uint arrayLength = GetLength(thisObj);
// This method only supports arrays of length up to 2^31-1.
if (arrayLength > int.MaxValue)
throw new JavaScriptException(thisObj.Engine, "RangeError", "The array is too long");
for (int i = 0; i < arrayLength; i++)
{
// Get the value of the array element.
object elementValue = thisObj[(uint)i];
// Only call the callback function for array elements that exist in the array.
if (elementValue != null)
{
// Call the callback function.
if (TypeConverter.ToBoolean(callbackFunction.CallLateBound(context, elementValue, i, thisObj)) == true)
return true;
}
}
return false;
}
public static ObjectInstance Sort([JSParameter(JSParameterFlags.Mutated)] ObjectInstance thisObj, FunctionInstance comparisonFunction = null)
{
// Get the length of the array.
uint arrayLength = GetLength(thisObj);
// An array of size 1 or less is already sorted.
if (arrayLength <= 1)
return thisObj;
// Create a comparer delegate.
Func<object, object, double> comparer;
if (comparisonFunction == null)
comparer = (a, b) =>
{
if (a == null && b == null)
return 0f;
if (a == null)
return 1f;
if (b == null)
return -1f;
if (a == Undefined.Value && b == Undefined.Value)
return 0f;
if (a == Undefined.Value)
return 1f;
if (b == Undefined.Value)
return -1f;
return string.Compare(TypeConverter.ToString(a), TypeConverter.ToString(b), StringComparison.Ordinal);
};
else
comparer = (a, b) =>
{
if (a == null && b == null)
return 0f;
if (a == null)
return 1f;
if (b == null)
return -1f;
if (a == Undefined.Value && b == Undefined.Value)
return 0f;
if (a == Undefined.Value)
return 1f;
if (b == Undefined.Value)
return -1f;
return TypeConverter.ToNumber(comparisonFunction.CallLateBound(thisObj.Engine.Global, a, b));
};
try
{
// Sort the array.
QuickSort(thisObj, comparer, 0, arrayLength - 1);
}
catch (IndexOutOfRangeException)
{
throw new JavaScriptException(thisObj.Engine, "TypeError", "Invalid comparison function");
}
return thisObj;
}
void Xhr(ObjectInstance href, ObjectInstance type, FunctionInstance callback, FunctionInstance errorCallback)
{
var filename = href.ToString();
var referencingFile = currentFiles.Peek();
try
{
var file = referencingFile.Directory.GetFile(filename);
var content = file.OpenRead().ReadToEnd();
callback.Call(Null.Value, content, DateTime.MinValue);
}
catch (FileNotFoundException ex)
{
throw FileNotFoundExceptionWithSourceFilename(referencingFile, ex);
}
catch (DirectoryNotFoundException ex)
{
throw DirectoryNotFoundExceptionWithSourceFilename(referencingFile, ex);
}
}
public void Ignore(string eventName, FunctionInstance fn)
{
if (events.ContainsKey(eventName))
events[eventName].Remove(fn);
}
/// <summary>
/// Returns a copy of this string with text replaced using a regular expression and a
/// replacement function.
/// </summary>
/// <param name="regExp"> The regular expression to search for. </param>
/// <param name="replaceFunction"> A function that is called to produce the text to replace
/// for every successful match. </param>
/// <returns> A copy of this string with text replaced using a regular expression. </returns>
public static string Replace(string thisObject, RegExpInstance regExp, FunctionInstance replaceFunction)
{
return regExp.Replace(thisObject, replaceFunction);
}
public static ArrayInstance Filter(ObjectInstance thisObj, FunctionInstance callbackFunction, [DefaultParameterValue(null)] ObjectInstance context = null)
{
// callbackFunction must be a valid function.
if (callbackFunction == null)
throw new JavaScriptException(thisObj.Engine, "TypeError", "Invalid callback function");
// Get the length of the array.
uint arrayLength = GetLength(thisObj);
// This method only supports arrays of length up to 2^31-1.
if (arrayLength > int.MaxValue)
throw new JavaScriptException(thisObj.Engine, "RangeError", "The array is too long");
// Create a new array to hold the new values.
var result = thisObj.Engine.Array.New();
for (int i = 0; i < arrayLength; i++)
{
// Get the value of the array element.
object elementValue = thisObj[(uint)i];
// Only call the callback function for array elements that exist in the array.
if (elementValue != null)
{
// Call the callback function.
bool includeInArray = TypeConverter.ToBoolean(callbackFunction.CallLateBound(context, elementValue, i, thisObj));
// Store the result if the callback function returned true.
if (includeInArray == true)
result.Push(elementValue);
}
}
return result;
}
