ciArrayKlass.cpp revision 1472:c18cbe5936b8
1/* 2 * Copyright (c) 1999, 2005, 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#include "incls/_precompiled.incl" 26#include "incls/_ciArrayKlass.cpp.incl" 27 28// ciArrayKlass 29// 30// This class represents a klassOop in the HotSpot virtual machine 31// whose Klass part in an arrayKlass. 32 33// ------------------------------------------------------------------ 34// ciArrayKlass::ciArrayKlass 35// 36// Loaded array klass. 37ciArrayKlass::ciArrayKlass(KlassHandle h_k) : ciKlass(h_k) { 38 assert(get_Klass()->oop_is_array(), "wrong type"); 39 _dimension = get_arrayKlass()->dimension(); 40} 41 42// ------------------------------------------------------------------ 43// ciArrayKlass::ciArrayKlass 44// 45// Unloaded array klass. 46ciArrayKlass::ciArrayKlass(ciSymbol* name, int dimension, ciKlass* klass) 47 : ciKlass(name, klass) { 48 _dimension = dimension; 49} 50 51// ------------------------------------------------------------------ 52// ciArrayKlass::element_type 53// 54// What type is obtained when this array is indexed once? 55ciType* ciArrayKlass::element_type() { 56 if (is_type_array_klass()) { 57 return ciType::make(as_type_array_klass()->element_type()); 58 } else { 59 return as_obj_array_klass()->element_klass()->as_klass(); 60 } 61} 62 63 64// ------------------------------------------------------------------ 65// ciArrayKlass::base_element_type 66// 67// What type is obtained when this array is indexed as many times as possible? 68ciType* ciArrayKlass::base_element_type() { 69 if (is_type_array_klass()) { 70 return ciType::make(as_type_array_klass()->element_type()); 71 } else { 72 ciKlass* ek = as_obj_array_klass()->base_element_klass(); 73 if (ek->is_type_array_klass()) { 74 return ciType::make(ek->as_type_array_klass()->element_type()); 75 } 76 return ek; 77 } 78} 79 80 81// ------------------------------------------------------------------ 82// ciArrayKlass::is_leaf_type 83bool ciArrayKlass::is_leaf_type() { 84 if (is_type_array_klass()) { 85 return true; 86 } else { 87 return as_obj_array_klass()->base_element_klass()->is_leaf_type(); 88 } 89} 90 91 92// ------------------------------------------------------------------ 93// ciArrayKlass::base_element_type 94// 95// What type is obtained when this array is indexed as many times as possible? 96ciArrayKlass* ciArrayKlass::make(ciType* element_type) { 97 if (element_type->is_primitive_type()) { 98 return ciTypeArrayKlass::make(element_type->basic_type()); 99 } else { 100 return ciObjArrayKlass::make(element_type->as_klass()); 101 } 102} 103