private object EvalJScript(string src)
{
var engine = Engine;
try
{
With.JScriptWith(this, Engine);
return(Eval.JScriptEvaluate(src, "unsafe", engine));
}
finally
{
engine.PopScriptObject(/* with */);
}
}
/// <summary> Создание экземпляра класса </summary>
/// <param name="reff">Список ссылок на дополнительные сборки</param>
public JS(params string[] reff)
{
//VsaEngine.CreateEngineAndGetGlobalScope(false, new[] { "System.dll"});
var v = new List <string>()
{
"mscorlib.dll", "System.dll", "System.Xml.dll", "System.Data.dll", "System.Drawing.dll", "System.Windows.Forms.dll" /*, AppContext.AppFullFileName */
};
if (reff != null)
{
v.AddRange(reff);
}
var gs = (GlobalScope)JSContext._type("Microsoft.JScript.Vsa.VsaEngine").InvokeMember("CreateEngineAndGetGlobalScope", BindingFlags.InvokeMethod, Type.DefaultBinder, null, new object[] { false, v.ToArray() }); //fast=false иначе with(this){x=0} throw stackowerflowexception
Import.JScriptImport("System", gs.engine); //для имён с '.' ("System.Collections" и т.п.) - не работает
_scope = new GlobalScope(gs, gs.engine);
gs.engine.PushScriptObject(_scope);
With.JScriptWith(new JSContext(), _scope.engine);//по умолчанию используется стандартный контекст
}
public override bool Eval(object context)
{
VsaEngine engine = Engine;
//
// Following is equivalent to calling eval in JScript,
// with the value of the context variable established at the
// global scope in order for it to be available to the
// expression source.
//
_contextField.SetValue(_scope, context);
try
{
With.JScriptWith(context, engine);
return(Convert.ToBoolean(Microsoft.JScript.Eval.JScriptEvaluate(_expression, engine)));
}
finally
{
engine.PopScriptObject(/* with */);
}
}
public JS SetContext(object ext = null)
{
_scope.engine.PopScriptObject();//удаляем старый контекст
With.JScriptWith(ext ?? new JSContext(), _scope.engine);
return(this);
}
