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/*
* make_array.java
*
* Copyright (C) 2003-2005 Peter Graves
* $Id$
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* As a special exception, the copyright holders of this library give you
* permission to link this library with independent modules to produce an
* executable, regardless of the license terms of these independent
* modules, and to copy and distribute the resulting executable under
* terms of your choice, provided that you also meet, for each linked
* independent module, the terms and conditions of the license of that
* module. An independent module is a module which is not derived from
* or based on this library. If you modify this library, you may extend
* this exception to your version of the library, but you are not
* obligated to do so. If you do not wish to do so, delete this
* exception statement from your version.
*/
package org.armedbear.lisp;
import static org.armedbear.lisp.Lisp.*;
// ### %make-array dimensions element-type initial-element initial-element-p
// initial-contents adjustable fill-pointer displaced-to displaced-index-offset
// => new-array
public final class make_array extends Primitive
{
public make_array()
{
super("%make-array", PACKAGE_SYS, false);
}
@Override
public LispObject execute(LispObject[] args)
{
if (args.length != 9)
return error(new WrongNumberOfArgumentsException(this, 9));
LispObject dimensions = args[0];
LispObject elementType = args[1];
LispObject initialElement = args[2];
LispObject initialElementProvided = args[3];
LispObject initialContents = args[4];
LispObject adjustable = args[5];
LispObject fillPointer = args[6];
LispObject displacedTo = args[7];
LispObject displacedIndexOffset = args[8];
if (initialElementProvided != NIL && initialContents != NIL)
{
return error(new LispError("MAKE-ARRAY: cannot specify both " +
"initial element and initial contents."));
}
final int rank = dimensions.listp() ? dimensions.length() : 1;
int[] dimv = new int[rank];
if (dimensions.listp())
{
for (int i = 0; i < rank; i++)
{
LispObject dim = dimensions.car();
dimv[i] = Fixnum.getValue(dim);
dimensions = dimensions.cdr();
}
}
else
dimv[0] = Fixnum.getValue(dimensions);
if (displacedTo != NIL)
{
// FIXME Make sure element type (if specified) is compatible with
// displaced-to array.
final AbstractArray array = checkArray(displacedTo);
if (initialElementProvided != NIL)
return error(new LispError("Initial element must not be specified for a displaced array."));
if (initialContents != NIL)
return error(new LispError("Initial contents must not be specified for a displaced array."));
final int displacement;
if (displacedIndexOffset != NIL)
displacement = Fixnum.getValue(displacedIndexOffset);
else
displacement = 0;
if (rank == 1)
{
AbstractVector v;
LispObject arrayElementType = array.getElementType();
if (arrayElementType == Symbol.CHARACTER)
v = new ComplexString(dimv[0], array, displacement);
else if (arrayElementType == Symbol.BIT)
v = new ComplexBitVector(dimv[0], array, displacement);
else if (arrayElementType.equal(UNSIGNED_BYTE_8))
v = new ComplexVector_UnsignedByte8(dimv[0], array, displacement);
else if (arrayElementType.equal(UNSIGNED_BYTE_32))
v = new ComplexVector_UnsignedByte32(dimv[0], array, displacement);
else
v = new ComplexVector(dimv[0], array, displacement);
if (fillPointer != NIL)
v.setFillPointer(fillPointer);
return v;
}
return new ComplexArray(dimv, array, displacement);
}
LispObject upgradedType = getUpgradedArrayElementType(elementType);
if (rank == 0)
{
LispObject data;
if (initialElementProvided != NIL)
data = initialElement;
else
data = initialContents;
return new ZeroRankArray(upgradedType, data, adjustable != NIL);
}
if (rank == 1)
{
final int size = dimv[0];
if (size < 0 || size >= ARRAY_DIMENSION_MAX)
{
StringBuilder sb = new StringBuilder();
sb.append("The size specified for this array (");
sb.append(size);
sb.append(')');
if (size >= ARRAY_DIMENSION_MAX)
{
sb.append(" is >= ARRAY-DIMENSION-LIMIT (");
sb.append(ARRAY_DIMENSION_MAX);
sb.append(").");
}
else
sb.append(" is negative.");
return error(new LispError(sb.toString()));
}
final AbstractVector v;
final LispObject defaultInitialElement;
if (upgradedType == Symbol.CHARACTER)
{
if (fillPointer != NIL || adjustable != NIL)
v = new ComplexString(size);
else
v = new SimpleString(size);
defaultInitialElement = LispCharacter.getInstance('\0');
}
else if (upgradedType == Symbol.BIT)
{
if (fillPointer != NIL || adjustable != NIL)
v = new ComplexBitVector(size);
else
v = new SimpleBitVector(size);
defaultInitialElement = Fixnum.ZERO;
}
else if (upgradedType.equal(UNSIGNED_BYTE_8))
{
if (fillPointer != NIL || adjustable != NIL)
v = new ComplexVector_UnsignedByte8(size);
else
v = new BasicVector_UnsignedByte8(size);
defaultInitialElement = Fixnum.ZERO;
}
else if (upgradedType.equal(UNSIGNED_BYTE_16) &&
fillPointer == NIL && adjustable == NIL)
{
v = new BasicVector_UnsignedByte16(size);
defaultInitialElement = Fixnum.ZERO;
}
else if (upgradedType.equal(UNSIGNED_BYTE_32))
{
if (fillPointer != NIL || adjustable != NIL)
v = new ComplexVector_UnsignedByte32(size);
else
v = new BasicVector_UnsignedByte32(size);
defaultInitialElement = Fixnum.ZERO;
}
else if (upgradedType == NIL)
{
v = new NilVector(size);
defaultInitialElement = null;
}
else
{
if (fillPointer != NIL || adjustable != NIL)
v = new ComplexVector(size);
else
v = new SimpleVector(size);
defaultInitialElement = NIL;
}
if (initialElementProvided != NIL)
{
// Initial element was specified.
v.fill(initialElement);
}
else if (initialContents != NIL)
{
if (initialContents.listp())
{
LispObject list = initialContents;
for (int i = 0; i < size; i++)
{
v.aset(i, list.car());
list = list.cdr();
}
}
else if (initialContents.vectorp())
{
for (int i = 0; i < size; i++)
v.aset(i, initialContents.elt(i));
}
else
return type_error(initialContents, Symbol.SEQUENCE);
}
else
{
if (defaultInitialElement != null)
v.fill(defaultInitialElement);
}
if (fillPointer != NIL)
v.setFillPointer(fillPointer);
return v;
}
// rank > 1
AbstractArray array;
if (adjustable == NIL)
{
if (upgradedType.equal(UNSIGNED_BYTE_8))
{
if (initialContents != NIL)
{
array = new SimpleArray_UnsignedByte8(dimv, initialContents);
}
else
{
array = new SimpleArray_UnsignedByte8(dimv);
if (initialElementProvided != NIL)
array.fill(initialElement);
else
array.fill(Fixnum.ZERO);
}
}
else if (upgradedType.equal(UNSIGNED_BYTE_16))
{
if (initialContents != NIL)
{
array = new SimpleArray_UnsignedByte16(dimv, initialContents);
}
else
{
array = new SimpleArray_UnsignedByte16(dimv);
if (initialElementProvided != NIL)
array.fill(initialElement);
else
array.fill(Fixnum.ZERO);
}
}
else if (upgradedType.equal(UNSIGNED_BYTE_32))
{
if (initialContents != NIL)
{
array = new SimpleArray_UnsignedByte32(dimv, initialContents);
}
else
{
array = new SimpleArray_UnsignedByte32(dimv);
if (initialElementProvided != NIL)
array.fill(initialElement);
else
array.fill(Fixnum.ZERO);
}
}
else
{
if (initialContents != NIL)
{
array = new SimpleArray_T(dimv, upgradedType, initialContents);
}
else
{
array = new SimpleArray_T(dimv, upgradedType);
if (initialElementProvided != NIL)
array.fill(initialElement);
else
array.fill(NIL);
}
}
}
else
{
// Adjustable.
if (upgradedType.equal(UNSIGNED_BYTE_8))
{
if (initialContents != NIL)
{
array = new ComplexArray_UnsignedByte8(dimv, initialContents);
}
else
{
array = new ComplexArray_UnsignedByte8(dimv);
if (initialElementProvided != NIL)
array.fill(initialElement);
else
array.fill(Fixnum.ZERO);
}
}
else if (upgradedType.equal(UNSIGNED_BYTE_32))
{
if (initialContents != NIL)
{
array = new ComplexArray_UnsignedByte32(dimv, initialContents);
}
else
{
array = new ComplexArray_UnsignedByte32(dimv);
if (initialElementProvided != NIL)
array.fill(initialElement);
else
array.fill(Fixnum.ZERO);
}
}
else
{
if (initialContents != NIL)
{
array = new ComplexArray(dimv, upgradedType, initialContents);
}
else
{
array = new ComplexArray(dimv, upgradedType);
if (initialElementProvided != NIL)
array.fill(initialElement);
else
array.fill(NIL);
}
}
}
return array;
}
private static final Primitive _MAKE_ARRAY = new make_array();
}
