/// <summary>
/// Invokes a function.
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="arguments">The arguments to the call.</param>
/// <returns>The <c>Value</c> returned from the function invocation, if any.</returns>
public JavaScriptValue CallFunction(params JavaScriptValue[] arguments)
{
if (arguments.Length > UInt16.MaxValue)
{
throw new ArgumentOutOfRangeException("arguments");
}
Native.ThrowIfError(Native.JsCallFunction(this, arguments, (UInt16)arguments.Length, out JavaScriptValue returnReference));
return(returnReference);
}
public string RunScript(string script)
{
IntPtr returnValue;
try
{
JavaScriptValue result;
if (Native.JsRunScript(script, currentSourceContext++, "", out result) != JavaScriptErrorCode.NoError)
{
throw new Exception(GetErrorMessage());
}
// Execute promise tasks stored in taskQueue
while (taskQueue.Count != 0)
{
JavaScriptValue task = taskQueue.Dequeue();
JavaScriptValue promiseResult;
JavaScriptValue global;
Native.JsGetGlobalObject(out global);
JavaScriptValue[] args = new JavaScriptValue[1] {
global
};
Native.JsCallFunction(task, args, 1, out promiseResult);
}
// Convert the return value.
JavaScriptValue stringResult;
UIntPtr stringLength;
if (Native.JsConvertValueToString(result, out stringResult) != JavaScriptErrorCode.NoError)
{
return("failed to convert value to string.");
}
if (Native.JsStringToPointer(stringResult, out returnValue, out stringLength) != JavaScriptErrorCode.NoError)
{
return("failed to convert return value.");
}
}
catch (Exception e)
{
return("chakrahost: fatal error: internal error: " + e.Message);
}
return(Marshal.PtrToStringUni(returnValue));
}
public JavaScriptValue RunScriptForJavaScriptValue(string script)
{
JavaScriptValue result;
if (Native.JsRunScript(script, currentSourceContext++, string.Empty, out result) != JavaScriptErrorCode.NoError)
{
throw new Exception(GetErrorMessage());
}
// Execute promise tasks stored in taskQueue
while (taskQueue.Count != 0)
{
JavaScriptValue task = taskQueue.Dequeue();
JavaScriptValue promiseResult;
JavaScriptValue global;
Native.JsGetGlobalObject(out global);
JavaScriptValue[] args = new JavaScriptValue[1] {
global
};
Native.JsCallFunction(task, args, 1, out promiseResult);
}
return(result);
}