dValueArray_prims.cpp

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/* Copyright 1996 LongView Technologies L.L.C. $Revision: 1.2 $ */
/* Copyright (c) 2006, Sun Microsystems, Inc.
All rights reserved.

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# include "incls/_precompiled.incl"
# include "incls/_dValueArray_prims.cpp.incl"

TRACE_FUNC(TraceDoubleValueArrayPrims, "doubleValueArray")

int doubleValueArrayPrimitives::number_of_calls;

#define ASSERT_RECEIVER assert(receiver->is_doubleValueArray(), "receiver must be double value array")

PRIM_DECL_2(doubleValueArrayPrimitives::allocateSize, oop receiver, oop argument) {
  PROLOGUE_2("allocateSize", receiver, argument)
  assert(receiver->is_klass() && klassOop(receiver)->klass_part()->oop_is_doubleValueArray(),
         "receiver must double byte array class");
  if (!argument->is_smi())
    markSymbol(vmSymbols::first_argument_has_wrong_type());

  if (smiOop(argument)->value() < 0)
    return markSymbol(vmSymbols::negative_size());

  int length = smiOop(argument)->value();

  klassOop k        = klassOop(receiver);
  int      ni_size  = k->klass_part()->non_indexable_size();
  int      obj_size = ni_size + 1 + roundTo(length * sizeof(double), oopSize) / oopSize;
  // allocate
  doubleValueArrayOop obj = as_doubleValueArrayOop(Universe::allocate(obj_size, (memOop*)&k));
  // header
  memOop(obj)->initialize_header(true, k);
  // instance variables
  memOop(obj)->initialize_body(memOopDesc::header_size(), ni_size);
  obj->set_length(length);
  for (int index = 1; index <= length; index++) {
    obj->double_at_put(index, 0.0);
  }
  return obj;
}

PRIM_DECL_1(doubleValueArrayPrimitives::size, oop receiver) {
  PROLOGUE_1("size", receiver);
  ASSERT_RECEIVER;

  // do the operation
  return as_smiOop(doubleValueArrayOop(receiver)->length());
}

PRIM_DECL_2(doubleValueArrayPrimitives::at, oop receiver, oop index) {
  PROLOGUE_2("at", receiver, index);
  ASSERT_RECEIVER;

  // check index type
  if (!index->is_smi())
    return markSymbol(vmSymbols::first_argument_has_wrong_type());

  // check index value
  if (!doubleValueArrayOop(receiver)->is_within_bounds(smiOop(index)->value()))
     return markSymbol(vmSymbols::out_of_bounds());

  return oopFactory::new_double(doubleValueArrayOop(receiver)->double_at(smiOop(index)->value()));
}

PRIM_DECL_3(doubleValueArrayPrimitives::atPut, oop receiver, oop index, oop value) {
  PROLOGUE_3("atPut", receiver, index, value);
  ASSERT_RECEIVER;

  // check index type
  if (!index->is_smi())
    return markSymbol(vmSymbols::first_argument_has_wrong_type());

  // check value type
  if (!value->is_double())
    return markSymbol(vmSymbols::second_argument_has_wrong_type());

  // check index value
  if (!doubleValueArrayOop(receiver)->is_within_bounds(smiOop(index)->value()))
     return markSymbol(vmSymbols::out_of_bounds());

  // do the operation
  doubleValueArrayOop(receiver)->double_at_put(smiOop(index)->value(), doubleOop(value)->value());
  return receiver;
}

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