public MetaObject Defer(params MetaObject[] args)
{
return(MakeDeferred(
Restrictions.Combine(args),
args
));
}
public MetaObject Defer(MetaObject target, params MetaObject[] args)
{
ContractUtils.RequiresNotNull(target, "target");
if (args == null)
{
return(MakeDeferred(
target.Restrictions,
target
));
}
else
{
return(MakeDeferred(
target.Restrictions.Merge(Restrictions.Combine(args)),
args.AddFirst(target)
));
}
}
public static MetaObject CreateThrow(MetaObject target, MetaObject[] args, Type exception, params Expression[] exceptionArgs)
{
ContractUtils.RequiresNotNull(target, "target");
ContractUtils.RequiresNotNull(exception, "exception");
Type[] argTypes = exceptionArgs != null?exceptionArgs.Map((arg) => arg.Type) : Type.EmptyTypes;
ConstructorInfo constructor = exception.GetConstructor(argTypes);
if (constructor == null)
{
throw new ArgumentException(Strings.TypeDoesNotHaveConstructorForTheSignature);
}
return(new MetaObject(
Expression.Throw(
Expression.New(
exception.GetConstructor(argTypes),
exceptionArgs
)
),
target.Restrictions.Merge(Restrictions.Combine(args))
));
}