89 lines
3.1 KiB
C++
89 lines
3.1 KiB
C++
/*
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* Copyright (c) 1999, 2017, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "precompiled.hpp"
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#include "classfile/javaClasses.hpp"
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#include "memory/universe.inline.hpp"
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#include "runtime/reflectionUtils.hpp"
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KlassStream::KlassStream(InstanceKlass* klass, bool local_only,
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bool classes_only, bool walk_defaults) {
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_klass = _base_klass = klass;
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_base_class_search_defaults = false;
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_defaults_checked = false;
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if (classes_only) {
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_interfaces = Universe::the_empty_klass_array();
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} else {
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_interfaces = klass->transitive_interfaces();
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}
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_interface_index = _interfaces->length();
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_local_only = local_only;
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_classes_only = classes_only;
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_walk_defaults = walk_defaults;
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}
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bool KlassStream::eos() {
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if (index() >= 0) return false;
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if (_local_only) return true;
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if (!_klass->is_interface() && _klass->super() != NULL) {
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// go up superclass chain (not for interfaces)
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_klass = InstanceKlass::cast(_klass->super());
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// Next for method walks, walk default methods
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} else if (_walk_defaults && (_defaults_checked == false) && (_base_klass->default_methods() != NULL)) {
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_base_class_search_defaults = true;
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_klass = _base_klass;
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_defaults_checked = true;
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} else {
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// Next walk transitive interfaces
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if (_interface_index > 0) {
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_klass = InstanceKlass::cast(_interfaces->at(--_interface_index));
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} else {
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return true;
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}
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}
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_index = length();
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next();
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return eos();
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}
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GrowableArray<FilteredField*> *FilteredFieldsMap::_filtered_fields =
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new (ResourceObj::C_HEAP, mtInternal) GrowableArray<FilteredField*>(3,true);
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void FilteredFieldsMap::initialize() {
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int offset = reflect_ConstantPool::oop_offset();
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_filtered_fields->append(new FilteredField(SystemDictionary::reflect_ConstantPool_klass(), offset));
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offset = reflect_UnsafeStaticFieldAccessorImpl::base_offset();
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_filtered_fields->append(new FilteredField(SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(), offset));
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}
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int FilteredFieldStream::field_count() {
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int numflds = 0;
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for (;!eos(); next()) {
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numflds++;
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}
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return numflds;
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}
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