public CCFixture()
{
runtime = JsRuntime.Create(JsRuntimeAttributes.AllowScriptInterrupt);
context = runtime.CreateContext();
context.AddRef();
typeMapper = new TypeMapper();
}
public async Task TestFunction()
{
using (var runtime = JsRuntime.Create())
{
var called = false;
var context = runtime.CreateContext();
await context.DeclareFunctionAsync("run", () => called = true);
await context.EvalAsync("run()");
Assert.True(called, "the run function was not callded.");
}
}
public async Task TestFunctionReturn()
{
const string expected = "foobar";
using (var runtime = JsRuntime.Create())
{
var context = runtime.CreateContext();
await context.DeclareFunctionAsync("run", () => expected);
var result = await context.EvalAsync <string>("run()");
Assert.Equal(expected, result);
}
}
public async Task TestJsProxy()
{
using (var runtime = JsRuntime.Create())
{
var context = runtime.CreateContext();
var instance = new TestClass();
await context.SetGlobalAsync("item", instance);
await context.EvalAsync("item.call()");
Assert.True(instance.IsCalled);
await context.EvalAsync("item.isCalled = false");
Assert.False(instance.IsCalled);
}
}
/// <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)
{
ChakraCoreSettings chakraCoreSettings = settings ?? new ChakraCoreSettings();
JsRuntimeAttributes attributes = JsRuntimeAttributes.None;
if (chakraCoreSettings.DisableBackgroundWork)
{
attributes |= JsRuntimeAttributes.DisableBackgroundWork;
}
if (chakraCoreSettings.DisableNativeCodeGeneration)
{
attributes |= JsRuntimeAttributes.DisableNativeCodeGeneration;
}
if (chakraCoreSettings.DisableEval)
{
attributes |= JsRuntimeAttributes.DisableEval;
}
if (chakraCoreSettings.EnableExperimentalFeatures)
{
attributes |= JsRuntimeAttributes.EnableExperimentalFeatures;
}
_externalObjectFinalizeCallback = ExternalObjectFinalizeCallback;
_dispatcher.Invoke(() =>
{
try
{
_jsRuntime = JsRuntime.Create(attributes, null);
_jsContext = _jsRuntime.CreateContext();
_jsContext.AddRef();
}
catch (Exception e)
{
throw new JsEngineLoadException(
string.Format(CoreStrings.Runtime_JsEngineNotLoaded,
EngineName, e.Message), EngineName, EngineVersion, e);
}
});
}
/// <summary>
///
/// </summary>
/// <param name="e"></param>
protected async override void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
try
{
var js = new FileInfo(@"test.js");
using (var runtime = JsRuntime.Create())
{
runtime.AllocatingMemory += this.Runtime_MemoryEvent;
runtime.CollectingGarbage += this.Runtime_CollectingGarbage;
using (runtime.CreateContext().Use(true))
{
try
{
var obj = JsExternalObject.Create(this);
obj.ExternalData = 12;
obj.ExternalData = 100;
JsContext.StartDebugging();
var func = JsFunction.Create(saf);
var console = Opportunity.ChakraBridge.WinRT.Browser.Console.GetOrCreate();
console.Logging += Con_Logging;
var c2 = Opportunity.ChakraBridge.WinRT.Browser.Console.GetOrCreate();
JsValue.GlobalObject["func"] = func;
JsContext.RunScript("console.log(1,'2',{});func(1,'2',{});new func();", js.Name);
}
catch (Exception)
{
var error = JsContext.LastError;
}
}
}
}
catch (Exception)
{
}
}
public Runtime(IServiceProvider serviceProvider)
{
runtime = JsRuntime.Create(JsRuntimeAttributes.AllowScriptInterrupt);
this.serviceProvider = serviceProvider;
}
/// <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();
}
}
}
static void Main(string[] args)
{
using (JsRuntime runtime = JsRuntime.Create())
{
JsContext context = runtime.CreateContext();
context.AddRef();
JsSourceContext sourceContext = JsSourceContext.FromIntPtr(IntPtr.Zero);
var moduleManager = new EsModuleManager(() => sourceContext++);
var scope = new JsScope(context);
try
{
JsValue moduleNamespace;
// It's not working. Always returns a result equal to `undefined`.
JsValue resultValue = moduleManager.EvaluateModuleCode(
@"import * as geometry from './geometry/geometry.js';
new geometry.Square(15).area;",
"Files/main-with-return-value.js",
out moduleNamespace
);
WriteLine("Return value: {0}", resultValue.ConvertToString().ToString());
// It's works. We can return the result value by using the default export.
moduleManager.EvaluateModuleCode(
@"import * as geometry from './geometry/geometry.js';
export default new geometry.Square(20).area;",
"Files/main-with-default-export.js",
out moduleNamespace
);
JsPropertyId defaultPropertyId = JsPropertyId.FromString("default");
JsValue defaultPropertyValue = moduleNamespace.GetProperty(defaultPropertyId);
WriteLine("Default export: {0}", defaultPropertyValue.ConvertToString().ToString());
// It's works. We can return the result value by using the named export.
moduleManager.EvaluateModuleCode(
@"import * as geometry from './geometry/geometry.js';
export let squareArea = new geometry.Square(25).area;",
"Files/main-with-named-export.js",
out moduleNamespace
);
JsPropertyId squareAreaPropertyId = JsPropertyId.FromString("squareArea");
JsValue squareAreaPropertyValue = moduleNamespace.GetProperty(squareAreaPropertyId);
WriteLine("Named export: {0}", squareAreaPropertyValue.ConvertToString().ToString());
}
catch (JsException e)
{
WriteLine("During working of JavaScript engine an error occurred.");
WriteLine();
Write(e.Message);
var scriptException = e as JsScriptException;
if (scriptException != null)
{
WriteLine();
JsValue errorValue = scriptException.Metadata.GetProperty("exception");
JsValueType errorValueType = errorValue.ValueType;
if (errorValueType == JsValueType.Error || errorValueType == JsValueType.Object)
{
JsValue messageValue;
JsPropertyId stackPropertyId = JsPropertyId.FromString("stack");
if (errorValue.HasProperty(stackPropertyId))
{
messageValue = errorValue.GetProperty(stackPropertyId);
}
else
{
messageValue = errorValue.GetProperty("message");
}
WriteLine(messageValue.ToString());
}
else if (errorValueType == JsValueType.String)
{
WriteLine(errorValue.ToString());
}
else
{
WriteLine(errorValue.ConvertToString().ToString());
}
}
}
finally
{
scope.Dispose();
moduleManager?.Dispose();
context.Release();
}
}
}