1 /* 2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_VM_CI_CISYMBOLKLASS_HPP 26 #define SHARE_VM_CI_CISYMBOLKLASS_HPP 27 28 #include "ci/ciKlass.hpp" 29 #include "ci/ciSymbol.hpp" 30 31 // ciSymbolKlass 32 // 33 // This class represents a klassOop in the HotSpot virtual machine 34 // whose Klass part in a symbolKlass. Although, in the VM 35 // Klass hierarchy, symbolKlass is a direct subclass of typeArrayKlass, 36 // we do not model this relationship in the ciObject hierarchy -- the 37 // subclassing is used to share implementation and is not of note 38 // to compiler writers. 39 class ciSymbolKlass : public ciKlass { 40 CI_PACKAGE_ACCESS 41 42 protected: 43 ciSymbolKlass(KlassHandle h_k) 44 : ciKlass(h_k, ciSymbol::make("unique_symbolKlass")) { 45 assert(get_Klass()->oop_is_symbol(), "wrong type"); 46 } 47 48 symbolKlass* get_symbolKlass() { return (symbolKlass*)get_Klass(); } 49 50 const char* type_string() { return "ciSymbolKlass"; } 51 52 public: 53 // What kind of ciObject is this? 54 bool is_symbol_klass() { return true; } 55 56 // Return the distinguished ciSymbolKlass instance. 57 static ciSymbolKlass* make(); 58 }; 59 60 #endif // SHARE_VM_CI_CISYMBOLKLASS_HPP