/// <summary>
/// Destroys object
/// </summary>
/// <param name="disposing">Flag, allowing destruction of
/// managed objects contained in fields of class</param>
private void Dispose(bool disposing)
{
if (_disposedFlag.Set())
{
if (disposing)
{
if (_dispatcher != null)
{
_dispatcher.Invoke(DisposeUnmanagedResources);
_dispatcher.Dispose();
_dispatcher = null;
}
if (_typeMapper != null)
{
_typeMapper.Dispose();
_typeMapper = null;
}
_promiseContinuationCallback = null;
}
else
{
DisposeUnmanagedResources();
}
}
}
/// <summary>
/// Sets a promise continuation callback function that is called by the context when a task
/// needs to be queued for future execution
/// </summary>
/// <remarks>
/// <para>
/// Requires an active script context.
/// </para>
/// </remarks>
/// <param name="promiseContinuationCallback">The callback function being set</param>
/// <param name="callbackState">User provided state that will be passed back to the callback</param>
public static void SetPromiseContinuationCallback(JsPromiseContinuationCallback promiseContinuationCallback,
IntPtr callbackState)
{
JsErrorHelpers.ThrowIfError(NativeMethods.JsSetPromiseContinuationCallback(promiseContinuationCallback,
callbackState));
}
internal static extern JsErrorCode JsSetPromiseContinuationCallback(
JsPromiseContinuationCallback promiseContinuationCallback, IntPtr callbackState);
/// <summary>
/// Sets a promise continuation callback function that is called by the context when a task
/// needs to be queued for future execution
/// </summary>
/// <remarks>
/// <para>
/// Requires an active script context.
/// </para>
/// </remarks>
/// <param name="promiseContinuationCallback">The callback function being set</param>
/// <param name="callbackState">User provided state that will be passed back to the callback</param>
public static void SetPromiseContinuationCallback(JsPromiseContinuationCallback promiseContinuationCallback, IntPtr callbackState)
{
Native.ThrowIfError(Native.JsSetPromiseContinuationCallback(promiseContinuationCallback, callbackState));
}
internal static extern JsErrorCode JsSetPromiseContinuationCallback( JsPromiseContinuationCallback promiseContinuationCallback, IntPtr callbackState);
/// <summary>
/// Constructs an instance of adapter for the ChakraCore JS engine
/// </summary>
/// <param name="settings">Settings of the ChakraCore JS engine</param>
public ChakraCoreJsEngine(ChakraCoreSettings settings)
{
#if NETFULL
Initialize();
#endif
ChakraCoreSettings chakraCoreSettings = settings ?? new ChakraCoreSettings();
JsRuntimeAttributes attributes = JsRuntimeAttributes.AllowScriptInterrupt;
if (chakraCoreSettings.DisableBackgroundWork)
{
attributes |= JsRuntimeAttributes.DisableBackgroundWork;
}
if (chakraCoreSettings.DisableEval)
{
attributes |= JsRuntimeAttributes.DisableEval;
}
if (chakraCoreSettings.DisableExecutablePageAllocation)
{
attributes |= JsRuntimeAttributes.DisableExecutablePageAllocation;
}
if (chakraCoreSettings.DisableFatalOnOOM)
{
attributes |= JsRuntimeAttributes.DisableFatalOnOOM;
}
if (chakraCoreSettings.DisableNativeCodeGeneration)
{
attributes |= JsRuntimeAttributes.DisableNativeCodeGeneration;
}
if (chakraCoreSettings.EnableExperimentalFeatures)
{
attributes |= JsRuntimeAttributes.EnableExperimentalFeatures;
}
#if NETSTANDARD1_3
_dispatcher = new ScriptDispatcher();
#else
_dispatcher = new ScriptDispatcher(chakraCoreSettings.MaxStackSize);
#endif
_promiseContinuationCallback = PromiseContinuationCallback;
try
{
_dispatcher.Invoke(() =>
{
_jsRuntime = JsRuntime.Create(attributes, null);
_jsRuntime.MemoryLimit = settings.MemoryLimit;
_jsContext = _jsRuntime.CreateContext();
if (_jsContext.IsValid)
{
_jsContext.AddRef();
}
});
}
catch (DllNotFoundException e)
{
throw WrapDllNotFoundException(e);
}
catch (Exception e)
{
throw CoreErrorHelpers.WrapEngineLoadException(e, EngineName, EngineVersion, true);
}
finally
{
if (!_jsContext.IsValid)
{
Dispose();
}
}
}
