jdk/src/hotspot/share/memory/oopFactory.cpp

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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#include "classfile/javaClasses.hpp"
#include "classfile/symbolTable.hpp"
#include "classfile/vmSymbols.hpp"
#include "gc/shared/collectedHeap.inline.hpp"
#include "memory/oopFactory.hpp"
#include "memory/resourceArea.hpp"
#include "memory/universe.hpp"
#include "oops/arrayKlass.hpp"
#include "oops/flatArrayKlass.hpp"
#include "oops/flatArrayOop.inline.hpp"
#include "oops/instanceKlass.hpp"
#include "oops/instanceOop.hpp"
#include "oops/objArrayKlass.hpp"
#include "oops/objArrayOop.inline.hpp"
#include "oops/oop.inline.hpp"
#include "oops/oopCast.inline.hpp"
#include "oops/oopsHierarchy.hpp"
#include "oops/refArrayKlass.hpp"
#include "oops/typeArrayKlass.hpp"
#include "oops/typeArrayOop.inline.hpp"
#include "runtime/handles.inline.hpp"
#include "utilities/utf8.hpp"

typeArrayOop oopFactory::new_boolArray(int length, TRAPS) {
  return Universe::boolArrayKlass()->allocate_instance(length, THREAD);
}

typeArrayOop oopFactory::new_charArray(int length, TRAPS) {
  return Universe::charArrayKlass()->allocate_instance(length, THREAD);
}

typeArrayOop oopFactory::new_floatArray(int length, TRAPS) {
  return Universe::floatArrayKlass()->allocate_instance(length, THREAD);
}

typeArrayOop oopFactory::new_doubleArray(int length, TRAPS) {
  return Universe::doubleArrayKlass()->allocate_instance(length, THREAD);
}

typeArrayOop oopFactory::new_byteArray(int length, TRAPS) {
  return Universe::byteArrayKlass()->allocate_instance(length, THREAD);
}

typeArrayOop oopFactory::new_shortArray(int length, TRAPS) {
  return Universe::shortArrayKlass()->allocate_instance(length, THREAD);
}

typeArrayOop oopFactory::new_intArray(int length, TRAPS) {
  return Universe::intArrayKlass()->allocate_instance(length, THREAD);
}

typeArrayOop oopFactory::new_longArray(int length, TRAPS) {
  return Universe::longArrayKlass()->allocate_instance(length, THREAD);
}

// create java.lang.Object[]
refArrayOop oopFactory::new_objectArray(int length, TRAPS)  {
  return Universe::objectArrayKlass()->allocate_instance(length, THREAD);
}

typeArrayOop oopFactory::new_charArray(const char* utf8_str, TRAPS) {
  int length = utf8_str == nullptr ? 0 : UTF8::unicode_length(utf8_str);
  typeArrayOop result = new_charArray(length, CHECK_NULL);
  if (length > 0) {
    UTF8::convert_to_unicode(utf8_str, result->char_at_addr(0), length);
  }
  return result;
}

typeArrayOop oopFactory::new_typeArray(BasicType type, int length, TRAPS) {
  TypeArrayKlass* klass = Universe::typeArrayKlass(type);
  return klass->allocate_instance(length, THREAD);
}

// Create a Java array that points to Symbol.
// As far as Java code is concerned, a Symbol array is either an array of
// int or long depending on pointer size.  Only stack trace elements in Throwable use
// this.  They cast Symbol* into this type.
typeArrayOop oopFactory::new_symbolArray(int length, TRAPS) {
  BasicType type = LP64_ONLY(T_LONG) NOT_LP64(T_INT);
  return new_typeArray(type, length, THREAD);
}

typeArrayOop oopFactory::new_typeArray_nozero(BasicType type, int length, TRAPS) {
  TypeArrayKlass* klass = Universe::typeArrayKlass(type);
  return klass->allocate_common(length, false, THREAD);
}

objArrayOop oopFactory::new_objArray(Klass* klass, int length, ArrayProperties properties, TRAPS) {
  assert(!klass->is_array_klass() || properties == ArrayProperties::Default(), "properties only apply to single dimension arrays");
  ArrayKlass* ak = klass->array_klass(CHECK_NULL);
  return ObjArrayKlass::cast(ak)->allocate_instance(length, properties, THREAD);
}

objArrayOop oopFactory::new_objArray(Klass* klass, int length, TRAPS) {
  return new_objArray(klass, length, ArrayProperties::Default(), THREAD);
}

refArrayOop oopFactory::new_refArray(Klass* klass, int length, ArrayProperties properties, TRAPS) {
  ArrayKlass* ak = klass->array_klass(CHECK_NULL);
  ArrayDescription ad(Klass::RefArrayKlassKind, properties, LayoutKind::REFERENCE);
  ObjArrayKlass* oak = ObjArrayKlass::cast(ak)->klass_from_description(ad, CHECK_NULL);
  // Cast below must pass because the array description required a RefArrayKlass
  RefArrayKlass* rak = RefArrayKlass::cast(oak);
  return rak->allocate_instance(length, CHECK_NULL);
}

refArrayOop oopFactory::new_refArray(Klass* klass, int length, TRAPS) {
  return new_refArray(klass, length, ArrayProperties::Default(), THREAD);
}

flatArrayOop oopFactory::new_flatArray(InlineKlass* ik, int length, ArrayProperties props, TRAPS) {
  ArrayKlass* ak = ik->array_klass(CHECK_NULL);
  ObjArrayKlass* oak = ObjArrayKlass::cast(ak)->klass_with_properties(props, CHECK_NULL);
  FlatArrayKlass* fak = FlatArrayKlass::cast(oak);

  return fak->allocate_instance(length, THREAD);
}

refArrayHandle oopFactory::new_refArray_handle(Klass* klass, int length, TRAPS) {
  refArrayOop obj = new_refArray(klass, length, CHECK_(refArrayHandle()));
  return refArrayHandle(THREAD, obj);
}