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gnosygnu_xowa/100_core/src/gplx/Object_.java

68 lines
3.2 KiB

/*
XOWA: the XOWA Offline Wiki Application
Copyright (C) 2012 gnosygnu@gmail.com
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package gplx;
public class Object_ {
public static final String Cls_val_name = "Object";
public static final Object[] Ary_empty = new Object[0];
public static Object[] Ary(Object... ary) {return ary;}
public static Object[] Ary_add(Object[] lhs, Object[] rhs) {
int lhs_len = lhs.length, rhs_len = rhs.length;
if (lhs_len == 0) return rhs;
else if (rhs_len == 0) return lhs;
int rv_len = lhs_len + rhs_len;
Object[] rv = new Object[rv_len];
for (int i = 0; i < lhs_len; ++i)
rv[i] = lhs[i];
for (int i = lhs_len; i < rv_len; ++i)
rv[i] = rhs[i - lhs_len];
return rv;
}
public static String[] Ary__to_str_ary(Object[]... ary) {
int len = ary.length;
String[] rv = new String[len];
for (int i = 0; i < len; ++i)
rv[i] = String_.Concat_with_obj("|", (Object[])ary[i]);
return rv;
}
public static boolean Eq(Object lhs, Object rhs) {
if (lhs == null && rhs == null) return true;
else if (lhs == null || rhs == null) return false;
else return lhs.equals(rhs);
}
public static String Xto_str_or(Object v, String or) {return v == null ? or : ToString_lang(v);}
public static String Xto_str_strict_or_null(Object v) {return v == null ? null : ToString_lang(v);}
public static String Xto_str_strict_or_null_mark(Object v) {return v == null ? String_.Null_mark : ToString_lang(v);}
public static String Xto_str_strict_or_empty(Object v) {return v == null ? String_.Empty : ToString_lang(v);}
private static String ToString_lang(Object v) {
Class<?> c = v.getClass();
if (Type_adp_.Eq(c, String_.Cls_ref_type)) return (String)v;
else if (Type_adp_.Eq(c, Bry_.Cls_ref_type)) return String_.new_u8((byte[])v);
else return v.toString();
}
public static String Xto_str_loose_or(Object v, String or) { // tries to pretty-print doubles; also standardizes true/false; DATE:2014-07-14
if (v == null) return null;
Class<?> c = Type_adp_.ClassOf_obj(v);
if (Type_adp_.Eq(c, String_.Cls_ref_type)) return (String)v;
else if (Type_adp_.Eq(c, Bry_.Cls_ref_type)) return String_.new_u8((byte[])v);
else if (Type_adp_.Eq(c, Bool_.Cls_ref_type)) return Bool_.cast(v) ? Bool_.True_str : Bool_.False_str; // always return "true" / "false"
else if (Type_adp_.Eq(c, Double_.Cls_ref_type)) return Double_.To_str_loose(Double_.cast(v));
else return v.toString();
}
public static final Object Null = null;
public static final byte[] Bry__null = Bry_.new_a7("null");
}