1/* valatypesymbol.vala 2 * 3 * Copyright (C) 2006-2010 Jürg Billeter 4 * Copyright (C) 2006-2008 Raffaele Sandrini 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 19 * 20 * Author: 21 * Jürg Billeter <j@bitron.ch> 22 * Raffaele Sandrini <raffaele@sandrini.ch> 23 */ 24 25using GLib; 26 27/** 28 * Represents a runtime data type. This data type may be defined in Vala source 29 * code or imported from an external library with a Vala API file. 30 */ 31public abstract class Vala.TypeSymbol : Symbol { 32 protected TypeSymbol (string? name, SourceReference? source_reference = null, Comment? comment = null) { 33 base (name, source_reference, comment); 34 } 35 36 /** 37 * Checks whether this data type has value or reference type semantics. 38 * 39 * @return true if this data type has reference type semantics 40 */ 41 public virtual bool is_reference_type () { 42 return false; 43 } 44 45 /** 46 * Checks whether this data type is equal to or a subtype of the 47 * specified data type. 48 * 49 * @param t a data type 50 * @return true if t is a supertype of this data type, false otherwise 51 */ 52 public virtual bool is_subtype_of (TypeSymbol t) { 53 return (this == t); 54 } 55 56 /** 57 * Return the index of the specified type parameter name. 58 */ 59 public virtual int get_type_parameter_index (string name) { 60 return -1; 61 } 62} 63