private static JavaScriptValue RunScript(JavaScriptValue callee, bool isConstructCall, JavaScriptValue[] arguments, ushort argumentCount, IntPtr callbackData)
{
if (argumentCount < 2)
{
ThrowException("not enough arguments");
return JavaScriptValue.Invalid;
}
//
// Convert filename.
//
string filename = arguments[1].ToString();
//
// Load the script from the disk.
//
string script = File.ReadAllText(filename);
if (string.IsNullOrEmpty(script))
{
ThrowException("invalid script");
return JavaScriptValue.Invalid;
}
//
// Run the script.
//
return JavaScriptContext.RunScript(script, currentSourceContext++, filename);
}
public string init()
{
JavaScriptContext context;
if (Native.JsCreateRuntime(JavaScriptRuntimeAttributes.None, null, out runtime) != JavaScriptErrorCode.NoError)
return "failed to create runtime.";
if (Native.JsCreateContext(runtime, out context) != JavaScriptErrorCode.NoError)
return "failed to create execution context.";
if (Native.JsSetCurrentContext(context) != JavaScriptErrorCode.NoError)
return "failed to set current context.";
// ES6 Promise callback
JavaScriptPromiseContinuationCallback promiseContinuationCallback = delegate (JavaScriptValue task, IntPtr callbackState)
{
promiseCallback = task;
};
if (Native.JsSetPromiseContinuationCallback(promiseContinuationCallback, IntPtr.Zero) != JavaScriptErrorCode.NoError)
return "failed to setup callback for ES6 Promise";
if (Native.JsProjectWinRTNamespace("Windows") != JavaScriptErrorCode.NoError)
return "failed to project windows namespace.";
if (Native.JsStartDebugging() != JavaScriptErrorCode.NoError)
return "failed to start debugging.";
return "NoError";
}
private static JavaScriptValue Echo(JavaScriptValue callee, bool isConstructCall, JavaScriptValue[] arguments, ushort argumentCount, IntPtr callbackData)
{
for (uint index = 1; index < argumentCount; index++)
{
if (index > 1)
{
Console.Write(" ");
}
Console.Write(arguments[index].ConvertToString().ToString());
}
Console.WriteLine();
return JavaScriptValue.Invalid;
}
private static void DefineHostCallback(JavaScriptValue globalObject, string callbackName, JavaScriptNativeFunction callback, IntPtr callbackData)
{
//
// Get property ID.
//
JavaScriptPropertyId propertyId = JavaScriptPropertyId.FromString(callbackName);
//
// Create a function
//
JavaScriptValue function = JavaScriptValue.CreateFunction(callback, callbackData);
//
// Set the property
//
globalObject.SetProperty(propertyId, function, true);
}
internal static extern JavaScriptErrorCode JsGetIndexedPropertiesExternalData(JavaScriptValue obj, IntPtr data, out JavaScriptTypedArrayType arrayType, out uint elementLength);
/// <summary>
/// Executes a script.
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="script">The script to run.</param>
/// <param name="sourceContext">
/// A cookie identifying the script that can be used by script contexts that have debugging enabled.
/// </param>
/// <param name="sourceName">The location the script came from.</param>
/// <returns>The result of the script, if any.</returns>
public static JavaScriptValue RunScript(string script, JavaScriptSourceContext sourceContext, string sourceName)
{
JavaScriptValue result;
Native.ThrowIfError(Native.JsRun(JavaScriptValue.FromString(script), sourceContext, JavaScriptValue.FromString(sourceName), JavaScriptParseScriptAttributes.JsParseScriptAttributeNone, out result));
return(result);
}
internal static extern JavaScriptErrorCode JsGetArrayBufferStorage(JavaScriptValue arrayBuffer, out byte[] buffer, out uint bufferLength);
internal static extern JavaScriptErrorCode JsCreateTypedArray(JavaScriptTypedArrayType arrayType, JavaScriptValue arrayBuffer, uint byteOffset,
uint elementLength, out JavaScriptValue result);
internal static extern JavaScriptErrorCode JsInspectableToObject([MarshalAs(UnmanagedType.IInspectable)] System.Object inspectable, out JavaScriptValue value);
internal static extern JavaScriptErrorCode JsSetObjectBeforeCollectCallback(JavaScriptValue reference, IntPtr callbackState, JavaScriptObjectBeforeCollectCallback beforeCollectCallback);
/// <summary>
/// Set the value at the specified index of an object.
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="index">The index to set.</param>
/// <param name="value">The value to set.</param>
public void SetIndexedProperty(JavaScriptValue index, JavaScriptValue value)
{
Native.ThrowIfError(Native.JsSetIndexedProperty(this, index, value));
}
internal static extern JavaScriptErrorCode JsGetUndefinedValue(out JavaScriptValue undefinedValue);
internal static extern JavaScriptErrorCode JsRunSerializedScript(string script, byte[] buffer, JavaScriptSourceContext sourceContext, string sourceUrl, out JavaScriptValue result);
internal static extern JavaScriptErrorCode JsRunScript(string script, JavaScriptSourceContext sourceContext, string sourceUrl, out JavaScriptValue result);
internal static extern JavaScriptErrorCode JsRelease(JavaScriptValue reference, out uint count);
internal static extern JavaScriptErrorCode JsAddRef(JavaScriptValue reference, out uint count);
/// <summary>
/// Sets the runtime of the current context to an exception state.
/// </summary>
/// <remarks>
/// <para>
/// If the runtime of the current context is already in an exception state, this API will
/// throw <c>JsErrorInExceptionState</c>.
/// </para>
/// <para>
/// Requires an active script context.
/// </para>
/// </remarks>
/// <param name="exception">
/// The JavaScript exception to set for the runtime of the current context.
/// </param>
public static void SetException(JavaScriptValue exception)
{
Native.ThrowIfError(Native.JsSetException(exception));
}
internal static extern JavaScriptErrorCode JsInstanceOf(JavaScriptValue obj, JavaScriptValue constructor, out bool result);
internal static extern JavaScriptErrorCode JsGetNullValue(out JavaScriptValue nullValue);
internal static extern JavaScriptErrorCode JsGetContextOfObject(JavaScriptValue obj, out JavaScriptContext context);
internal static extern JavaScriptErrorCode JsGetTrueValue(out JavaScriptValue trueValue);
internal static extern JavaScriptErrorCode JsSetException(JavaScriptValue exception);
/// <summary>
/// Delete the value at the specified index of an object.
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="index">The index to delete.</param>
public void DeleteIndexedProperty(JavaScriptValue index)
{
Native.ThrowIfError(Native.JsDeleteIndexedProperty(this, index));
}
internal static extern JavaScriptErrorCode JsCreateNamedFunction(JavaScriptValue name, JavaScriptNativeFunction nativeFunction, IntPtr callbackState, out JavaScriptValue function);
internal static extern JavaScriptErrorCode JsGetDataViewStorage(JavaScriptValue dataView, out byte[] buffer, out uint bufferLength);
internal static extern JavaScriptErrorCode JsCreateArrayBuffer(uint byteLength, out JavaScriptValue result);
internal static extern JavaScriptErrorCode JsGetSymbolFromPropertyId(JavaScriptPropertyId propertyId, out JavaScriptValue symbol);
internal static extern JavaScriptErrorCode JsCreateDataView(JavaScriptValue arrayBuffer, uint byteOffset, uint byteOffsetLength, out JavaScriptValue result);
internal static extern JavaScriptErrorCode JsGetOwnPropertySymbols(JavaScriptValue obj, out JavaScriptValue propertySymbols);
internal static extern JavaScriptErrorCode JsGetTypedArrayStorage(JavaScriptValue typedArray, out byte[] buffer, out uint bufferLength, out JavaScriptTypedArrayType arrayType, out int elementSize);
public static void SetHostUrl(JavaScriptModuleRecord module, string url)
{
var value = JavaScriptValue.FromString(url);
Native.ThrowIfError(Native.JsSetModuleHostInfo(module, JavascriptModuleHostInfoKind.JsModuleHostInfo_Url, value));
}
internal static extern JavaScriptErrorCode JsCreateSymbol(JavaScriptValue description, out JavaScriptValue symbol);
internal static extern JavaScriptErrorCode JsCallFunction(JavaScriptValue function, JavaScriptValue[] arguments, ushort argumentCount, out JavaScriptValue result);
internal static extern JavaScriptErrorCode JsGetPropertyIdFromSymbol(JavaScriptValue symbol, out JavaScriptPropertyId propertyId);
internal static extern JavaScriptErrorCode JsConstructObject(JavaScriptValue function, JavaScriptValue[] arguments, ushort argumentCount, out JavaScriptValue result);
internal static extern JavaScriptErrorCode JsNumberToInt(JavaScriptValue value, out int intValue);
internal static extern JavaScriptErrorCode JsCreateFunction(JavaScriptNativeFunction nativeFunction, IntPtr externalData, out JavaScriptValue function);
internal static extern JavaScriptErrorCode JsHasIndexedPropertiesExternalData(JavaScriptValue obj, out bool value);
internal static extern JavaScriptErrorCode JsCreateURIError(JavaScriptValue message, out JavaScriptValue error);
internal static extern JavaScriptErrorCode JsGetTypedArrayInfo(JavaScriptValue typedArray, out JavaScriptTypedArrayType arrayType, out JavaScriptValue arrayBuffer, out uint byteOffset, out uint byteLength);
internal static extern JavaScriptErrorCode JsGetAndClearException(out JavaScriptValue exception);
internal static extern JavaScriptErrorCode JsRunSerializedScriptWithCallback(JavaScriptSerializedScriptLoadSourceCallback scriptLoadCallback,
JavaScriptSerializedScriptUnloadCallback scriptUnloadCallback, byte[] buffer, JavaScriptSourceContext sourceContext, string sourceUrl, out JavaScriptValue result);
/// <summary>
/// Sets an object's property.
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="id">The ID of the property.</param>
/// <param name="value">The new value of the property.</param>
/// <param name="useStrictRules">The property set should follow strict mode rules.</param>
public void SetProperty(JavaScriptPropertyId id, JavaScriptValue value, bool useStrictRules)
{
Native.ThrowIfError(Native.JsSetProperty(this, id, value, useStrictRules));
}