vm/memory/oopFactory.hpp

/*
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 * 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
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#ifndef SHARE_VM_MEMORY_OOPFACTORY_HPP
#define SHARE_VM_MEMORY_OOPFACTORY_HPP

#include "classfile/symbolTable.hpp"
#include "classfile/systemDictionary.hpp"
#include "memory/referenceType.hpp"
#include "memory/universe.hpp"
#include "oops/klassOop.hpp"
#include "oops/objArrayKlass.hpp"
#include "oops/oop.hpp"
#include "oops/typeArrayKlass.hpp"
#include "utilities/growableArray.hpp"

// oopFactory is a class used for creating new objects.

class vframeArray;

class oopFactory: AllStatic {
 public:
  // Basic type leaf array allocation
  static typeArrayOop    new_boolArray  (int length, TRAPS) { return typeArrayKlass::cast(Universe::boolArrayKlassObj  ())->allocate(length, CHECK_NULL); }
  static typeArrayOop    new_charArray  (int length, TRAPS) { return typeArrayKlass::cast(Universe::charArrayKlassObj  ())->allocate(length, CHECK_NULL); }
  static typeArrayOop    new_singleArray(int length, TRAPS) { return typeArrayKlass::cast(Universe::singleArrayKlassObj())->allocate(length, CHECK_NULL); }
  static typeArrayOop    new_doubleArray(int length, TRAPS) { return typeArrayKlass::cast(Universe::doubleArrayKlassObj())->allocate(length, CHECK_NULL); }
  static typeArrayOop    new_byteArray  (int length, TRAPS) { return typeArrayKlass::cast(Universe::byteArrayKlassObj  ())->allocate(length, CHECK_NULL); }
  static typeArrayOop    new_shortArray (int length, TRAPS) { return typeArrayKlass::cast(Universe::shortArrayKlassObj ())->allocate(length, CHECK_NULL); }
  static typeArrayOop    new_intArray   (int length, TRAPS) { return typeArrayKlass::cast(Universe::intArrayKlassObj   ())->allocate(length, CHECK_NULL); }
  static typeArrayOop    new_longArray  (int length, TRAPS) { return typeArrayKlass::cast(Universe::longArrayKlassObj  ())->allocate(length, CHECK_NULL); }

  // create java.lang.Object[]
  static objArrayOop     new_objectArray(int length, TRAPS)  {
    return objArrayKlass::
      cast(Universe::objectArrayKlassObj())->allocate(length, CHECK_NULL);
  }

  static typeArrayOop    new_charArray           (const char* utf8_str,  TRAPS);
  static typeArrayOop    new_permanent_charArray (int length, TRAPS);
  static typeArrayOop    new_permanent_byteArray (int length, TRAPS);  // used for class file structures
  static typeArrayOop    new_permanent_shortArray(int length, TRAPS);  // used for class file structures
  static typeArrayOop    new_permanent_intArray  (int length, TRAPS);  // used for class file structures

  static typeArrayOop    new_typeArray(BasicType type, int length, TRAPS);
  static typeArrayOop    new_typeArray_nozero(BasicType type, int length, TRAPS);

  // Constant pools
  static constantPoolOop      new_constantPool     (int length,
                                                    bool is_conc_safe,
                                                    TRAPS);
  static constantPoolCacheOop new_constantPoolCache(int length,
                                                    TRAPS);

  // Instance classes
  static klassOop        new_instanceKlass(Symbol* name,
                                           int vtable_len, int itable_len,
                                           int static_field_size,
                                           unsigned int nonstatic_oop_map_count,
                                           AccessFlags access_flags,
                                           ReferenceType rt,
                                           KlassHandle host_klass, TRAPS);

  // Methods
private:
  static constMethodOop  new_constMethod(int byte_code_size,
                                         int compressed_line_number_size,
                                         int localvariable_table_length,
                                         int exception_table_length,
                                         int checked_exceptions_length,
                                         bool is_conc_safe,
                                         TRAPS);
public:
  // Set is_conc_safe for methods which cannot safely be
  // processed by concurrent GC even after the return of
  // the method.
  static methodOop       new_method(int byte_code_size,
                                    AccessFlags access_flags,
                                    int compressed_line_number_size,
                                    int localvariable_table_length,
                                    int exception_table_length,
                                    int checked_exceptions_length,
                                    bool is_conc_safe,
                                    TRAPS);

  // Method Data containers
  static methodDataOop   new_methodData(methodHandle method, TRAPS);

  // System object arrays
  static objArrayOop     new_system_objArray(int length, TRAPS);

  // Regular object arrays
  static objArrayOop     new_objArray(klassOop klass, int length, TRAPS);

  // For compiled ICs
  static compiledICHolderOop new_compiledICHolder(methodHandle method, KlassHandle klass, TRAPS);
};

#endif // SHARE_VM_MEMORY_OOPFACTORY_HPP