示例#1
0
        private static JavaScriptContext CreateHostContext(JavaScriptRuntime runtime, string[] arguments, int argumentsStart)
        {
            //
            // Create the context. Note that if we had wanted to start debugging from the very
            // beginning, we would have passed in an IDebugApplication pointer here.
            //

            JavaScriptContext context = runtime.CreateContext();

            //
            // Now set the execution context as being the current one on this thread.
            //

            using (new JavaScriptContext.Scope(context))
            {
                //
                // Create the host object the script will use.
                //

                JavaScriptValue hostObject = JavaScriptValue.CreateObject();

                //
                // Get the global object
                //

                JavaScriptValue globalObject = JavaScriptValue.GlobalObject;

                //
                // Get the name of the property ("host") that we're going to set on the global object.
                //

                JavaScriptPropertyId hostPropertyId = JavaScriptPropertyId.FromString("host");

                //
                // Set the property.
                //

                globalObject.SetProperty(hostPropertyId, hostObject, true);

                //
                // Now create the host callbacks that we're going to expose to the script.
                //

                DefineHostCallback(hostObject, "echo", echoDelegate, IntPtr.Zero);
                DefineHostCallback(hostObject, "runScript", runScriptDelegate, IntPtr.Zero);

                //
                // Create an array for arguments.
                //

                JavaScriptValue hostArguments = JavaScriptValue.CreateArray((uint)(arguments.Length - argumentsStart));

                for (int index = argumentsStart; index < arguments.Length; index++)
                {
                    //
                    // Create the argument value.
                    //

                    JavaScriptValue argument = JavaScriptValue.FromString(arguments[index]);

                    //
                    // Create the index.
                    //

                    JavaScriptValue indexValue = JavaScriptValue.FromInt32(index - argumentsStart);

                    //
                    // Set the value.
                    //

                    hostArguments.SetIndexedProperty(indexValue, argument);
                }

                //
                // Get the name of the property that we're going to set on the host object.
                //

                JavaScriptPropertyId argumentsPropertyId = JavaScriptPropertyId.FromString("arguments");

                //
                // Set the arguments property.
                //

                hostObject.SetProperty(argumentsPropertyId, hostArguments, true);
            }

            return context;
        }
 private void InitChakraRuntime()
 {
     runtime = JavaScriptRuntime.Create();
     JavaScriptContext.Current = runtime.CreateContext(); 
 }