/// <summary>
/// Defines a new object's own property from a property descriptor
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="propertyId">The ID of the property</param>
/// <param name="propertyDescriptor">The property descriptor</param>
/// <returns>Whether the property was defined</returns>
public bool DefineProperty(JsPropertyId propertyId, JsValue propertyDescriptor)
{
bool result;
JsErrorHelpers.ThrowIfError(NativeMethods.JsDefineProperty(this, propertyId, propertyDescriptor, out result));
return(result);
}
/// <summary>
/// Converts a value to <c>Object</c> using regular JavaScript semantics
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <returns>The converted value</returns>
public JsValue ConvertToObject()
{
JsValue objectReference;
JsErrorHelpers.ThrowIfError(NativeMethods.JsConvertValueToObject(this, out objectReference));
return(objectReference);
}
/// <summary>
/// Gets a list of all properties on the object
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <returns>An array of property names</returns>
public JsValue GetOwnPropertyNames()
{
JsValue propertyNamesReference;
JsErrorHelpers.ThrowIfError(NativeMethods.JsGetOwnPropertyNames(this, out propertyNamesReference));
return(propertyNamesReference);
}
/// <summary>
/// Retrieves a <c>int</c> value of a <c>Number</c> value
/// </summary>
/// <remarks>
/// <para>
/// This function retrieves the value of a Number value. It will fail with
/// <c>InvalidArgument</c> if the type of the value is not <c>Number</c>.
/// </para>
/// <para>
/// Requires an active script context.
/// </para>
/// </remarks>
/// <returns>The <c>int</c> value</returns>
public int ToInt32()
{
int value;
JsErrorHelpers.ThrowIfError(NativeMethods.JsNumberToInt(this, out value));
return(value);
}
/// <summary>
/// Converts a value to <c>Number</c> using regular JavaScript semantics
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <returns>The converted value</returns>
public JsValue ConvertToNumber()
{
JsValue numberReference;
JsErrorHelpers.ThrowIfError(NativeMethods.JsConvertValueToNumber(this, out numberReference));
return(numberReference);
}
/// <summary>
/// Adds a reference to the object
/// </summary>
/// <remarks>
/// This only needs to be called on objects that are not going to be stored somewhere on
/// the stack. Calling AddRef ensures that the JavaScript object the value refers to will not be freed
/// until Release is called
/// </remarks>
/// <returns>The object's new reference count</returns>
public uint AddRef()
{
uint count;
JsErrorHelpers.ThrowIfError(NativeMethods.JsAddRef(this, out count));
return(count);
}
/// <summary>
/// Retrieves a <c>bool</c> value of a <c>Boolean</c> value
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <returns>The converted value</returns>
public bool ToBoolean()
{
bool value;
JsErrorHelpers.ThrowIfError(NativeMethods.JsBooleanToBool(this, out value));
return(value);
}
/// <summary>
/// Returns a exception that caused the runtime of the current context to be in the
/// exception state and resets the exception state for that runtime
/// </summary>
/// <remarks>
/// <para>
/// If the runtime of the current context is not in an exception state, this API will throw
/// <see cref="JsErrorCode.InvalidArgument"/>. If the runtime is disabled, this will return
/// an exception indicating that the script was terminated, but it will not clear the exception
/// (the exception will be cleared if the runtime is re-enabled using
/// <c>JsEnableRuntimeExecution</c>).
/// </para>
/// <para>
/// Requires an active script context.
/// </para>
/// </remarks>
/// <returns>The exception for the runtime of the current context</returns>
public static JsValue GetAndClearException()
{
JsValue exception;
JsErrorHelpers.ThrowIfError(NativeMethods.JsGetAndClearException(out exception));
return(exception);
}
/// <summary>
/// Returns a metadata relating to the exception that caused the runtime of the current context
/// to be in the exception state and resets the exception state for that runtime. The metadata
/// includes a reference to the exception itself.
/// </summary>
/// <remarks>
/// <para>
/// If the runtime of the current context is not in an exception state, this API will throw
/// <see cref="JsErrorCode.InvalidArgument"/>. If the runtime is disabled, this will return
/// an exception indicating that the script was terminated, but it will not clear the exception
/// (the exception will be cleared if the runtime is re-enabled using
/// <c>JsEnableRuntimeExecution</c>).
/// </para>
/// <para>
/// The metadata value is a javascript object with the following properties: <c>exception</c>, the
/// thrown exception object; <c>line</c>, the 0 indexed line number where the exception was thrown;
/// <c>column</c>, the 0 indexed column number where the exception was thrown; <c>length</c>, the
/// source-length of the cause of the exception; <c>source</c>, a string containing the line of
/// source code where the exception was thrown; and <c>url</c>, a string containing the name of
/// the script file containing the code that threw the exception.
/// </para>
/// <para>
/// Requires an active script context.
/// </para>
/// </remarks>
/// <returns>The exception metadata for the runtime of the current context</returns>
public static JsValue JsGetAndClearExceptionWithMetadata()
{
JsValue metadata;
JsErrorHelpers.ThrowIfError(NativeMethods.JsGetAndClearExceptionWithMetadata(out metadata));
return(metadata);
}
/// <summary>
/// Creates a script context for running scripts
/// </summary>
/// <remarks>
/// Each script context has its own global object that is isolated from all other script
/// contexts.
/// </remarks>
/// <returns>The created script context</returns>
public JsContext CreateContext()
{
JsContext reference;
JsErrorHelpers.ThrowIfError(NativeMethods.JsCreateContext(this, out reference));
return(reference);
}
/// <summary>
/// Tells the runtime to do any idle processing it need to do
/// </summary>
/// <remarks>
/// <para>
/// If idle processing has been enabled for the current runtime, calling <c>Idle</c> will
/// inform the current runtime that the host is idle and that the runtime can perform
/// memory cleanup tasks.
/// </para>
/// <para>
/// <c>Idle</c> will also return the number of system ticks until there will be more idle work
/// for the runtime to do. Calling <c>Idle</c> before this number of ticks has passed will do
/// no work.
/// </para>
/// <para>
/// Requires an active script context.
/// </para>
/// </remarks>
/// <returns>
/// The next system tick when there will be more idle work to do. Returns the
/// maximum number of ticks if there no upcoming idle work to do.
/// </returns>
public static uint Idle()
{
uint ticks;
JsErrorHelpers.ThrowIfError(NativeMethods.JsIdle(out ticks));
return(ticks);
}
/// <summary>
/// Creates a new runtime
/// </summary>
/// <param name="attributes">The attributes of the runtime to be created</param>
/// <param name="threadServiceCallback">The thread service for the runtime. Can be null</param>
/// <returns>The runtime created</returns>
public static JsRuntime Create(JsRuntimeAttributes attributes, JsThreadServiceCallback threadServiceCallback)
{
JsRuntime handle;
JsErrorHelpers.ThrowIfError(NativeMethods.JsCreateRuntime(attributes, threadServiceCallback, out handle));
return(handle);
}
/// <summary>
/// Retrieves a value at the specified index of an object
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="index">The index to retrieve</param>
/// <returns>The retrieved value</returns>
public JsValue GetIndexedProperty(JsValue index)
{
JsValue propertyReference;
JsErrorHelpers.ThrowIfError(NativeMethods.JsGetIndexedProperty(this, index, out propertyReference));
return(propertyReference);
}
/// <summary>
/// Test if an object has a value at the specified index
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="index">The index to test</param>
/// <returns>Whether the object has an value at the specified index</returns>
public bool HasIndexedProperty(JsValue index)
{
bool hasProperty;
JsErrorHelpers.ThrowIfError(NativeMethods.JsHasIndexedProperty(this, index, out hasProperty));
return(hasProperty);
}
/// <summary>
/// Creates a JavaScript array object
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="length">The initial length of the array</param>
/// <returns>The new array object</returns>
public static JsValue CreateArray(uint length)
{
JsValue reference;
JsErrorHelpers.ThrowIfError(NativeMethods.JsCreateArray(length, out reference));
return(reference);
}
/// <summary>
/// Compare two JavaScript values for strict equality
/// </summary>
/// <remarks>
/// <para>
/// This function is equivalent to the "===" operator in JavaScript.
/// </para>
/// <para>
/// Requires an active script context.
/// </para>
/// </remarks>
/// <param name="other">The object to compare</param>
/// <returns>Whether the values are strictly equal</returns>
public bool StrictEquals(JsValue other)
{
bool equals;
JsErrorHelpers.ThrowIfError(NativeMethods.JsStrictEquals(this, other, out equals));
return(equals);
}
/// <summary>
/// Creates a new JavaScript URIError error object
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="message">Message for the error object</param>
/// <returns>The new error object</returns>
public static JsValue CreateUriError(JsValue message)
{
JsValue reference;
JsErrorHelpers.ThrowIfError(NativeMethods.JsCreateURIError(message, out reference));
return(reference);
}
/// <summary>
/// Creates a <c>Boolean</c> value from a <c>bool</c> value
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="value">The value to be converted</param>
/// <returns>The converted value</returns>
public static JsValue FromBoolean(bool value)
{
JsValue reference;
JsErrorHelpers.ThrowIfError(NativeMethods.JsBoolToBoolean(value, out reference));
return(reference);
}
/// <summary>
/// Releases a reference to the object
/// </summary>
/// <remarks>
/// Removes a reference that was created by AddRef.
/// </remarks>
/// <returns>The object's new reference count</returns>
public uint Release()
{
uint count;
JsErrorHelpers.ThrowIfError(NativeMethods.JsRelease(this, out count));
return(count);
}
/// <summary>
/// Creates a <c>Number</c> value from a <c>double</c> value
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="value">The value to be converted</param>
/// <returns>The new <c>Number</c> value</returns>
public static JsValue FromDouble(double value)
{
JsValue reference;
JsErrorHelpers.ThrowIfError(NativeMethods.JsDoubleToNumber(value, out reference));
return(reference);
}
/// <summary>
/// Retrieves a <c>double</c> value of a <c>Number</c> value
/// </summary>
/// <remarks>
/// <para>
/// This function retrieves the value of a Number value. It will fail with
/// <c>InvalidArgument</c> if the type of the value is not <c>Number</c>.
/// </para>
/// <para>
/// Requires an active script context.
/// </para>
/// </remarks>
/// <returns>The <c>double</c> value</returns>
public double ToDouble()
{
double value;
JsErrorHelpers.ThrowIfError(NativeMethods.JsNumberToDouble(this, out value));
return(value);
}
/// <summary>
/// Creates a <c>Number</c> value from a <c>int</c> value
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="value">The value to be converted</param>
/// <returns>The new <c>Number</c> value</returns>
public static JsValue FromInt32(int value)
{
JsValue reference;
JsErrorHelpers.ThrowIfError(NativeMethods.JsIntToNumber(value, out reference));
return(reference);
}
/// <summary>
/// Converts a value to <c>Boolean</c> using regular JavaScript semantics
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <returns>The converted value</returns>
public JsValue ConvertToBoolean()
{
JsValue booleanReference;
JsErrorHelpers.ThrowIfError(NativeMethods.JsConvertValueToBoolean(this, out booleanReference));
return(booleanReference);
}
/// <summary>
/// Creates a new <c>Object</c>
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <returns>The new <c>Object</c></returns>
public static JsValue CreateObject()
{
JsValue reference;
JsErrorHelpers.ThrowIfError(NativeMethods.JsCreateObject(out reference));
return(reference);
}
/// <summary>
/// Converts a value to <c>String</c> using regular JavaScript semantics
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <returns>The converted value</returns>
public JsValue ConvertToString()
{
JsValue stringReference;
JsErrorHelpers.ThrowIfError(NativeMethods.JsConvertValueToString(this, out stringReference));
return(stringReference);
}
/// <summary>
/// Creates a new <c>Object</c> that stores some external data
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="data">External data that the object will represent. May be null.</param>
/// <param name="finalizer">The callback for when the object is finalized. May be null.</param>
/// <returns>The new <c>Object</c></returns>
public static JsValue CreateExternalObject(IntPtr data, JsFinalizeCallback finalizer)
{
JsValue reference;
JsErrorHelpers.ThrowIfError(NativeMethods.JsCreateExternalObject(data, finalizer, out reference));
return(reference);
}
/// <summary>
/// Gets a property descriptor for an object's own property
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="propertyId">The ID of the property</param>
/// <returns>The property descriptor</returns>
public JsValue GetOwnPropertyDescriptor(JsPropertyId propertyId)
{
JsValue descriptorReference;
JsErrorHelpers.ThrowIfError(NativeMethods.JsGetOwnPropertyDescriptor(this, propertyId, out descriptorReference));
return(descriptorReference);
}
/// <summary>
/// Creates a new JavaScript function
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="function">The method to call when the function is invoked</param>
/// <param name="callbackData">Data to be provided to all function callbacks</param>
/// <returns>The new function object</returns>
public static JsValue CreateFunction(JsNativeFunction function, IntPtr callbackData)
{
JsValue reference;
JsErrorHelpers.ThrowIfError(NativeMethods.JsCreateFunction(function, callbackData, out reference));
return(reference);
}
/// <summary>
/// Determines whether an object has a property
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="propertyId">The ID of the property</param>
/// <returns>Whether the object (or a prototype) has the property</returns>
public bool HasProperty(JsPropertyId propertyId)
{
bool hasProperty;
JsErrorHelpers.ThrowIfError(NativeMethods.JsHasProperty(this, propertyId, out hasProperty));
return(hasProperty);
}
/// <summary>
/// Deletes an object's property
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="propertyId">The ID of the property</param>
/// <param name="useStrictRules">The property set should follow strict mode rules</param>
/// <returns>Whether the property was deleted</returns>
public JsValue DeleteProperty(JsPropertyId propertyId, bool useStrictRules)
{
JsValue returnReference;
JsErrorHelpers.ThrowIfError(NativeMethods.JsDeleteProperty(this, propertyId, useStrictRules, out returnReference));
return(returnReference);
}
