public Expression GenCode(RHC rhc, ObjExpr objx, GenContext context)
{
List<Expression> exprs = new List<Expression>(_exprs.count());
for (int i = 0; i < _exprs.count()-1; i++)
{
Expr e = (Expr)_exprs.nth(i);
exprs.Add(e.GenCode(RHC.Statement,objx,context));
}
exprs.Add(LastExpr.GenCode(rhc, objx, context));
return Expression.Block(exprs);
}