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59 lines
2.8 KiB
59 lines
2.8 KiB
/*
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XOWA: the XOWA Offline Wiki Application
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Copyright (C) 2012-2017 gnosygnu@gmail.com
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XOWA is licensed under the terms of the General Public License (GPL) Version 3,
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or alternatively under the terms of the Apache License Version 2.0.
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You may use XOWA according to either of these licenses as is most appropriate
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for your project on a case-by-case basis.
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The terms of each license can be found in the source code repository:
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GPLv3 License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-GPLv3.txt
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Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
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*/
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package gplx;
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public class Object_ {
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public static final String Cls_val_name = "Object";
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public static final Object[] Ary_empty = new Object[0];
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public static Object[] Ary(Object... ary) {return ary;}
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public static Object[] Ary_add(Object[] lhs, Object[] rhs) {
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int lhs_len = lhs.length, rhs_len = rhs.length;
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if (lhs_len == 0) return rhs;
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else if (rhs_len == 0) return lhs;
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int rv_len = lhs_len + rhs_len;
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Object[] rv = new Object[rv_len];
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for (int i = 0; i < lhs_len; ++i)
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rv[i] = lhs[i];
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for (int i = lhs_len; i < rv_len; ++i)
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rv[i] = rhs[i - lhs_len];
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return rv;
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}
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public static boolean Eq(Object lhs, Object rhs) {
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if (lhs == null && rhs == null) return true;
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else if (lhs == null || rhs == null) return false;
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else return lhs.equals(rhs);
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}
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public static String Xto_str_or(Object v, String or) {return v == null ? or : ToString_lang(v);}
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public static String Xto_str_strict_or_null(Object v) {return v == null ? null : ToString_lang(v);}
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public static String Xto_str_strict_or_null_mark(Object v) {return v == null ? String_.Null_mark : ToString_lang(v);}
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public static String Xto_str_strict_or_empty(Object v) {return v == null ? String_.Empty : ToString_lang(v);}
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private static String ToString_lang(Object v) {
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Class<?> c = v.getClass();
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if (Type_.Eq(c, String_.Cls_ref_type)) return (String)v;
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else if (Type_.Eq(c, Bry_.Cls_ref_type)) return String_.new_u8((byte[])v);
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else return v.toString();
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}
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public static String Xto_str_loose_or(Object v, String or) { // tries to pretty-print doubles; also standardizes true/false; DATE:2014-07-14
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if (v == null) return null;
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Class<?> c = Type_.Type_by_obj(v);
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if (Type_.Eq(c, String_.Cls_ref_type)) return (String)v;
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else if (Type_.Eq(c, Bry_.Cls_ref_type)) return String_.new_u8((byte[])v);
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else if (Type_.Eq(c, Bool_.Cls_ref_type)) return Bool_.Cast(v) ? Bool_.True_str : Bool_.False_str; // always return "true" / "false"
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else if (Type_.Eq(c, Double_.Cls_ref_type)) return Double_.To_str_loose(Double_.cast(v));
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else return v.toString();
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}
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public static final Object Null = null;
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public static final byte[] Bry__null = Bry_.new_a7("null");
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} |