public virtual String Evaluate(string expr)
{
var engine = (INeedEngine)this;
var result = Eval.JScriptEvaluate(expr, engine.GetEngine());
return(Convert.ToString(result, true));
}
public override bool Eval(object context)
{
//
// Following is equivalent to calling apply in JScript.
// See http://msdn.microsoft.com/en-us/library/84ht5z59.aspx.
//
object result = LateBinding.CallValue(
DefaultThisObject(Engine),
_function, /* args */ new object[] { context, context },
/* construct */ false, /* brackets */ false, Engine);
return(Convert.ToBoolean(result));
}
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 */);
}
}