//TODO: reorganize switch
public override void Evaluate(IScriptContext context)
{
switch (_operation)
{
case "break":
if (context.Result == null)
{
context.Result = RuntimeHost.NullValue;
}
context.SetBreak(true);
break;
case "continue":
if (context.Result == null)
{
context.Result = RuntimeHost.NullValue;
}
context.SetContinue(true);
break;
case "return":
_expression.Evaluate(context);
context.SetReturn(true);
break;
case "throw":
_expression.Evaluate(context);
throw (Exception)context.Result;
default:
throw new ScriptSyntaxErrorException(_operation);
}
}
public override void Evaluate(IScriptContext context)
{
_name.Evaluate(context);
context.CreateScope(RuntimeHost.ScopeFactory.Create(ScopeTypes.Using, context.Scope, context.Result));
_statement.Evaluate(context);
context.RemoveLocalScope();
}
public object Invoke(IScriptContext context, object[] args)
{
bool scopeOwner = false;
if (args != null)
{
if (args.Length > 1)
{
throw new ArgumentException("Number of arguments ");
}
if (args.Length == 1)
{
var assigner = args[0] as ISupportAssign;
if (assigner == null)
{
throw new NotSupportedException("Given type of argument is not supported");
}
assigner.AssignTo(context.CreateScope());
scopeOwner = true;
}
}
try
{
context.ResetControlFlags();
_metaProg.Evaluate(context);
return(context.Result);
}
finally
{
if (scopeOwner)
{
context.RemoveLocalScope();
}
context.ResetControlFlags();
}
}
protected static bool CheckCondition(ScriptAst cond, IScriptContext context)
{
cond.Evaluate(context);
return (bool)context.Result;
}
protected static bool CheckCondition(ScriptAst cond, IScriptContext context)
{
cond.Evaluate(context);
return((bool)context.Result);
}