public override object Evaluate(Environment env)
{
object result = 0;
bool flag = true;
while (flag)
{
try
{
GuardValue guard = ((GuardNode)this[0]).Test(env);
flag = guard.GuardExpression;
if (flag)
{
result = guard.GuardBody;
}
}
catch (JumpSignal signal)
{
switch (signal.SignalType)
{
case JumpSignal.BreakSignal: return(result);
case JumpSignal.ContinueSignal: break;
default: throw;
}
}
}
return(result);
}
public override object Evaluate(Environment env)
{
object result = 0;
foreach (IAstNode node in this)
{
GuardNode guard = (GuardNode)node;
GuardValue guardResult = guard.Test(env);
if (guardResult.GuardExpression)
{
result = guardResult.GuardBody;
if (((AstLeaf)((BlockNode)guard.Body).Ending).Token.Text == ".")
{
break;
}
}
}
return(result);
}
public override object Evaluate(Environment env)
{
Environment inner = new Environment(env);
object expression = Expression.Evaluate(inner), result = 0;
foreach (IAstNode node in Guards)
{
GuardNode guard = (GuardNode)node;
GuardValue guardResult = (guard).Test(env, expression);
if (guardResult.GuardExpression)
{
result = guardResult.GuardBody;
if (((AstLeaf)((BlockNode)guard.Body).Ending).Token.Text == ".")
{
break;
}
}
}
return(result);
}