public JScriptAssertion(string expression, string[] assemblyNames, string[] imports)
{
if (string.IsNullOrEmpty(expression) ||
expression.TrimStart().Length == 0)
{
return;
}
ProcessDirectives(expression, ref assemblyNames, ref imports);
var engine = VsaEngine.CreateEngineAndGetGlobalScope(/* fast */ false,
assemblyNames ?? new string[0]).engine;
if (imports != null && imports.Length > 0)
{
foreach (var import in imports)
{
Import.JScriptImport(import, engine);
}
}
//
// We pick on of two expression evaluation strategies depending
// on the level of trust available. The full trust version is
// faster as it compiles the expression once into a JScript
// function and then simply invokes at the time it needs to
// evaluate the context. The partial trust strategy is slower
// as it compiles the expression each time an evaluation occurs
// using the JScript eval.
//
_evaluationStrategy = FullTrustEvaluationStrategy.IsApplicable() ? (EvaluationStrategy)
new FullTrustEvaluationStrategy(expression, engine) :
new PartialTrustEvaluationStrategy(expression, engine);
}
static javascript()
{
#if USEVSAHOST
Engine = Evaluator.Evaluator.Engine;
#else
List <string> assemblies = new List <string>(DefaultAssemblyReferences);
Assembly executingAssembly = Assembly.GetExecutingAssembly();
foreach (var name in executingAssembly.GetReferencedAssemblies())
{
string codeBase = name.CodeBase;
try
{
Assembly assembly = Assembly.Load(name);
if (assembly.GlobalAssemblyCache)
{
codeBase = Path.GetFileName(assembly.Location);
}
else
{
codeBase = assembly.Location;
}
}
catch (ChatSignal ex)
{
throw;
}
catch (Exception)
{
}
if (codeBase == null)
{
codeBase = name.Name + ".dll";
}
if (!assemblies.Contains(codeBase))
{
assemblies.Add(codeBase);
}
}
var GS = VsaEngine.CreateEngineAndGetGlobalScope(true, assemblies.ToArray());
Engine = GS.engine;
#endif
foreach (string reference in DefaultNamespaceReferences)
{
Import.JScriptImport(reference, Engine);
}
object o = Eval.JScriptEvaluate("this", Engine);
writeDebugLine("JSciptThis = " + o);
}