public BaristaContext CreateContext(BaristaRuntime runtime)
{
if (runtime == null)
{
throw new ArgumentNullException(nameof(runtime));
}
if (runtime.IsDisposed)
{
throw new ObjectDisposedException(nameof(runtime));
}
var contextHandle = m_engine.JsCreateContext(runtime.Handle);
return(m_contextPool.GetOrAdd(contextHandle, () =>
{
var moduleRecordFactory = m_serviceProvider.GetRequiredService <IBaristaModuleRecordFactory>();
var valueFactoryBuilder = m_serviceProvider.GetRequiredService <IBaristaValueFactoryBuilder>();
var conversionStrategy = m_serviceProvider.GetRequiredService <IBaristaConversionStrategy>();
//For flexability, a promise task queue is not required.
var promiseTaskQueue = m_serviceProvider.GetService <IPromiseTaskQueue>();
//Set the handle that will be called prior to the engine collecting the context.
var context = new BaristaContext(m_engine, valueFactoryBuilder, conversionStrategy, moduleRecordFactory, promiseTaskQueue, contextHandle);
void beforeCollect(object sender, BaristaObjectBeforeCollectEventArgs args)
{
context.BeforeCollect -= beforeCollect;
m_contextPool.RemoveHandle(new JavaScriptContextSafeHandle(args.Handle));
}
context.BeforeCollect += beforeCollect;
return context;
}));
}
public void JsCanStartDebugging()
{
using (var runtimeHandle = Engine.JsCreateRuntime(JavaScriptRuntimeAttributes.None, null))
{
using (var contextHandle = Engine.JsCreateContext(runtimeHandle))
{
Engine.JsSetCurrentContext(contextHandle);
bool called = false;
JavaScriptDiagDebugEventCallback callback = (JavaScriptDiagDebugEventType eventType, IntPtr eventData, IntPtr callbackState) =>
{
called = true;
return(true);
};
Engine.JsDiagStartDebugging(runtimeHandle, callback, IntPtr.Zero);
//We didn't specify any breakpoints so...
Assert.False(called);
}
}
}
public void JsValueSafeHandlesAreNotSingletons()
{
using (var runtimeHandle = Engine.JsCreateRuntime(JavaScriptRuntimeAttributes.None, null))
{
using (var contextHandle = Engine.JsCreateContext(runtimeHandle))
{
Engine.JsSetCurrentContext(contextHandle);
var trueHandle = Engine.JsGetTrueValue();
var anotherTrueHandle = Engine.JsBoolToBoolean(true);
Assert.Equal(trueHandle, anotherTrueHandle);
Assert.NotSame(trueHandle, anotherTrueHandle);
}
}
}
public void JsDiagEvaluateReturnsAValue()
{
if (DebugWindowsEngine == null)
{
return;
}
string iterate = @"
var moose = 0;
for(var i = 0; i < 50; i++)
{
moose++;
}
moose;
";
int iPod = 0;
using (var runtimeHandle = Engine.JsCreateRuntime(JavaScriptRuntimeAttributes.None, null))
{
using (var contextHandle = Engine.JsCreateContext(runtimeHandle))
{
Engine.JsSetCurrentContext(contextHandle);
//Callback that is run for each breakpoint.
JavaScriptDiagDebugEventCallback callback = (JavaScriptDiagDebugEventType eventType, IntPtr eventData, IntPtr callbackState) =>
{
var evalScript = Engine.JsCreateString("i", (ulong)"i".Length);
var evalResultHandle = Engine.JsDiagEvaluate(evalScript, 0, JavaScriptParseScriptAttributes.None, false);
var handleType = Engine.JsGetValueType(evalResultHandle);
Assert.Equal(JsValueType.Object, handleType);
var valuePropertyHandle = CommonWindowsEngine.JsGetPropertyIdFromName("value");
var valueHandle = Engine.JsGetProperty(evalResultHandle, valuePropertyHandle);
iPod = Engine.JsNumberToInt(valueHandle);
evalScript.Dispose();
return(true);
};
var callbackHandle = GCHandle.Alloc(callback);
try
{
using (var ss = new ScriptSource(Engine, iterate))
{
Engine.JsDiagStartDebugging(runtimeHandle, callback, IntPtr.Zero);
var scripts = Engine.JsDiagGetScripts();
Assert.NotEqual(JavaScriptValueSafeHandle.Invalid, scripts);
var ix = Engine.JsIntToNumber(0);
var objScriptHandle = Engine.JsGetIndexedProperty(scripts, ix);
var scriptIdPropertyHandle = CommonWindowsEngine.JsGetPropertyIdFromName("scriptId");
var scriptIdHandle = Engine.JsGetProperty(objScriptHandle, scriptIdPropertyHandle);
var scriptId = Engine.JsNumberToInt(scriptIdHandle);
//Set a breakpoint with a knkown position
var breakPointHandle = Engine.JsDiagSetBreakpoint((uint)scriptId, 4, 0);
Assert.NotEqual(JavaScriptValueSafeHandle.Invalid, breakPointHandle);
var finalResult = Engine.JsCallFunction(ss.FunctionHandle, new IntPtr[] { ss.FunctionHandle.DangerousGetHandle() }, 1);
var handleType = Engine.JsGetValueType(finalResult);
Assert.Equal(JsValueType.Number, handleType);
Engine.JsDiagStopDebugging(runtimeHandle);
}
Assert.Equal(49, iPod);
}
finally
{
callbackHandle.Free();
}
}
}
}
public void JsParseScriptParsesAndReturnsAFunction()
{
if (CommonWindowsEngine == null)
{
return;
}
var script = "(()=>{return 6*7;})()";
string sourceUrl = "[eval code]";
using (var runtimeHandle = Engine.JsCreateRuntime(JavaScriptRuntimeAttributes.None, null))
{
using (var contextHandle = Engine.JsCreateContext(runtimeHandle))
{
Engine.JsSetCurrentContext(contextHandle);
var resultHandle = CommonWindowsEngine.JsParseScript(script, JavaScriptSourceContext.GetNextSourceContext(), sourceUrl);
Assert.True(resultHandle != JavaScriptValueSafeHandle.Invalid);
var handleType = Engine.JsGetValueType(resultHandle);
Assert.True(handleType == JsValueType.Function);
resultHandle.Dispose();
}
}
}
public void JsCreateStringTest()
{
var str = "Hello, World!";
using (var runtimeHandle = Engine.JsCreateRuntime(JavaScriptRuntimeAttributes.None, null))
{
using (var contextHandle = Engine.JsCreateContext(runtimeHandle))
{
Engine.JsSetCurrentContext(contextHandle);
var stringHandle = Engine.JsCreateString(str, (ulong)str.Length);
Assert.True(stringHandle != JavaScriptValueSafeHandle.Invalid);
var handleType = Engine.JsGetValueType(stringHandle);
Assert.True(handleType == JsValueType.String);
stringHandle.Dispose();
}
}
}
