6578152: fill_region_with_object has usability and safety issues
Reviewed-by: apetrusenko, ysr
/* * Copyright 1999-2005 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code 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 General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */// ciInstance//// This class represents an instanceOop in the HotSpot virtual// machine. This is an oop which corresponds to a non-array// instance of java.lang.Object.class ciInstance : public ciObject { CI_PACKAGE_ACCESSprotected: ciInstance(instanceHandle h_i) : ciObject(h_i) { assert(h_i()->is_instance(), "wrong type"); } ciInstance(ciKlass* klass) : ciObject(klass) {} instanceOop get_instanceOop() { return (instanceOop)get_oop(); } const char* type_string() { return "ciInstance"; } void print_impl(outputStream* st);public: // If this object is a java mirror, return the corresponding type. // Otherwise, return NULL. // (Remember that a java mirror is an instance of java.lang.Class.) ciType* java_mirror_type(); // What kind of ciObject is this? bool is_instance() { return true; } bool is_java_object() { return true; } // Constant value of a field. ciConstant field_value(ciField* field); // Constant value of a field at the specified offset. ciConstant field_value_by_offset(int field_offset);};