jdk8-mips64-public/hotspot: comparison src/share/vm/ci/ciInstanceKlass.hpp

--1:000000000000
+:f90c822e73f8
+/*
+* Copyright (c) 1999, 2013, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+* or visit www.oracle.com if you need additional information or have any
+* questions.
+*
+*/
+#ifndef SHARE_VM_CI_CIINSTANCEKLASS_HPP
+#define SHARE_VM_CI_CIINSTANCEKLASS_HPP
+#include "ci/ciConstantPoolCache.hpp"
+#include "ci/ciFlags.hpp"
+#include "ci/ciKlass.hpp"
+#include "ci/ciSymbol.hpp"
+// ciInstanceKlass
+//
+// This class represents a Klass* in the HotSpot virtual machine
+// whose Klass part is an InstanceKlass.  It may or may not
+// be loaded.
+class ciInstanceKlass : public ciKlass {
+CI_PACKAGE_ACCESS
+friend class ciBytecodeStream;
+friend class ciEnv;
+friend class ciExceptionHandler;
+friend class ciMethod;
+friend class ciField;
+private:
+jobject                _loader;
+jobject                _protection_domain;
+InstanceKlass::ClassState _init_state;           // state of class
+bool                   _is_shared;
+bool                   _has_finalizer;
+bool                   _has_subklass;
+bool                   _has_nonstatic_fields;
+bool                   _has_default_methods;
+ciFlags                _flags;
+jint                   _nonstatic_field_size;
+jint                   _nonstatic_oop_map_size;
+// Lazy fields get filled in only upon request.
+ciInstanceKlass*       _super;
+ciInstance*            _java_mirror;
+ciConstantPoolCache*   _field_cache;  // cached map index->field
+GrowableArray<ciField*>* _nonstatic_fields;
+// The possible values of the _implementor fall into following three cases:
+//   NULL: no implementor.
+//   A ciInstanceKlass that's not itself: one implementor.
+//   Itsef: more than one implementors.
+ciInstanceKlass*       _implementor;
+GrowableArray<ciField*>* _non_static_fields;
+protected:
+ciInstanceKlass(KlassHandle h_k);
+ciInstanceKlass(ciSymbol* name, jobject loader, jobject protection_domain);
+InstanceKlass* get_instanceKlass() const {
+return (InstanceKlass*)get_Klass();
+}
+oop loader();
+jobject loader_handle();
+oop protection_domain();
+jobject protection_domain_handle();
+const char* type_string() { return "ciInstanceKlass"; }
+bool is_in_package_impl(const char* packagename, int len);
+void print_impl(outputStream* st);
+ciConstantPoolCache* field_cache();
+bool is_shared() { return _is_shared; }
+void compute_shared_init_state();
+bool compute_shared_has_subklass();
+int  compute_nonstatic_fields();
+GrowableArray<ciField*>* compute_nonstatic_fields_impl(GrowableArray<ciField*>* super_fields);
+// Update the init_state for shared klasses
+void update_if_shared(InstanceKlass::ClassState expected) {
+if (_is_shared && _init_state != expected) {
+if (is_loaded()) compute_shared_init_state();
+}
+}
+public:
+// Has this klass been initialized?
+bool                   is_initialized() {
+update_if_shared(InstanceKlass::fully_initialized);
+return _init_state == InstanceKlass::fully_initialized;
+}
+// Is this klass being initialized?
+bool                   is_being_initialized() {
+update_if_shared(InstanceKlass::being_initialized);
+return _init_state == InstanceKlass::being_initialized;
+}
+// Has this klass been linked?
+bool                   is_linked() {
+update_if_shared(InstanceKlass::linked);
+return _init_state >= InstanceKlass::linked;
+}
+// General klass information.
+ciFlags                flags()          {
+assert(is_loaded(), "must be loaded");
+return _flags;
+}
+bool                   has_finalizer()  {
+assert(is_loaded(), "must be loaded");
+return _has_finalizer; }
+bool                   has_subklass()   {
+assert(is_loaded(), "must be loaded");
+if (_is_shared && !_has_subklass) {
+if (flags().is_final()) {
+return false;
+} else {
+return compute_shared_has_subklass();
+}
+}
+return _has_subklass;
+}
+jint                   size_helper()  {
+return (Klass::layout_helper_size_in_bytes(layout_helper())
+>> LogHeapWordSize);
+}
+jint                   nonstatic_field_size()  {
+assert(is_loaded(), "must be loaded");
+return _nonstatic_field_size; }
+jint                   has_nonstatic_fields()  {
+assert(is_loaded(), "must be loaded");
+return _has_nonstatic_fields; }
+jint                   nonstatic_oop_map_size()  {
+assert(is_loaded(), "must be loaded");
+return _nonstatic_oop_map_size; }
+ciInstanceKlass*       super();
+jint                   nof_implementors() {
+ciInstanceKlass* impl;
+assert(is_loaded(), "must be loaded");
+impl = implementor();
+if (impl == NULL) {
+return 0;
+} else if (impl != this) {
+return 1;
+} else {
+return 2;
+}
+}
+bool has_default_methods()  {
+assert(is_loaded(), "must be loaded");
+return _has_default_methods;
+}
+ciInstanceKlass* get_canonical_holder(int offset);
+ciField* get_field_by_offset(int field_offset, bool is_static);
+ciField* get_field_by_name(ciSymbol* name, ciSymbol* signature, bool is_static);
+GrowableArray<ciField*>* non_static_fields();
+// total number of nonstatic fields (including inherited):
+int nof_nonstatic_fields() {
+if (_nonstatic_fields == NULL)
+return compute_nonstatic_fields();
+else
+return _nonstatic_fields->length();
+}
+// nth nonstatic field (presented by ascending address)
+ciField* nonstatic_field_at(int i) {
+assert(_nonstatic_fields != NULL, "");
+return _nonstatic_fields->at(i);
+}
+ciInstanceKlass* unique_concrete_subklass();
+bool has_finalizable_subclass();
+bool contains_field_offset(int offset) {
+return instanceOopDesc::contains_field_offset(offset, nonstatic_field_size());
+}
+// Get the instance of java.lang.Class corresponding to
+// this klass.  This instance is used for locking of
+// synchronized static methods of this klass.
+ciInstance*            java_mirror();
+// Java access flags
+bool is_public      () { return flags().is_public(); }
+bool is_final       () { return flags().is_final(); }
+bool is_super       () { return flags().is_super(); }
+bool is_interface   () { return flags().is_interface(); }
+bool is_abstract    () { return flags().is_abstract(); }
+ciMethod* find_method(ciSymbol* name, ciSymbol* signature);
+// Note:  To find a method from name and type strings, use ciSymbol::make,
+// but consider adding to vmSymbols.hpp instead.
+bool is_leaf_type();
+ciInstanceKlass* implementor();
+// Is the defining class loader of this class the default loader?
+bool uses_default_loader() const;
+bool is_java_lang_Object() const;
+BasicType box_klass_type() const;
+bool is_box_klass() const;
+bool is_boxed_value_offset(int offset) const;
+// Is this klass in the given package?
+bool is_in_package(const char* packagename) {
+return is_in_package(packagename, (int) strlen(packagename));
+}
+bool is_in_package(const char* packagename, int len);
+// What kind of ciObject is this?
+bool is_instance_klass() const { return true; }
+bool is_java_klass() const     { return true; }
+virtual ciKlass* exact_klass() {
+if (is_loaded() && is_final() && !is_interface()) {
+return this;
+}
+return NULL;
+}
+// Dump the current state of this klass for compilation replay.
+virtual void dump_replay_data(outputStream* out);
+};
+#endif // SHARE_VM_CI_CIINSTANCEKLASS_HPP

Mercurial > jdk8-mips64-public > hotspot / file comparison

comparison: src/share/vm/ci/ciInstanceKlass.hpp

src/share/vm/ci/ciInstanceKlass.hpp