Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.object.basic/src/com/oracle/truffle/object/basic/DefaultStrategy.java @ 21080:3253fe1bed41
Remove CompressedNullCheckOp, merge functionality into regular NullCheckOp.
author | Roland Schatz <roland.schatz@oracle.com> |
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date | Wed, 22 Apr 2015 16:46:57 +0200 |
parents | 2c3666f44855 |
children |
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/* * Copyright (c) 2014, 2014, 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. */ package com.oracle.truffle.object.basic; import java.util.*; import com.oracle.truffle.api.object.*; import com.oracle.truffle.object.*; import com.oracle.truffle.object.ShapeImpl.BaseAllocator; class DefaultStrategy implements LayoutStrategy { public boolean updateShape(DynamicObject object) { assert object.getShape().isValid(); return false; } public Shape returnCached(Shape newShape) { assert newShape.isValid(); return newShape; } private static boolean assertLocationInRange(Shape shape, Location location) { BasicLayout layout = (BasicLayout) shape.getLayout(); assert (shape.getPrimitiveFieldSize() + ((LocationImpl) location).primitiveFieldCount() <= layout.getPrimitiveFieldCount()); assert (shape.getObjectFieldSize() + ((LocationImpl) location).objectFieldCount() <= layout.getObjectFieldCount()); return true; } public Shape ensureSpace(Shape shape, Location location) { Objects.requireNonNull(location); assert assertLocationInRange(shape, location); return shape; } public boolean isAutoExtArray() { return false; } public Property generalizeProperty(DynamicObject object, Property oldProperty, Object value) { Shape oldShape = object.getShape(); Location oldLocation = oldProperty.getLocation(); Location newLocation = ((BasicAllocator) oldShape.allocator()).locationForValueUpcast(value, oldLocation); Property newProperty = oldProperty.relocate(newLocation); Shape newShape = oldShape.replaceProperty(oldProperty, newProperty); newProperty.setSafe(object, value, oldShape, newShape); return newProperty; } public Property generalizeProperty(DynamicObject object, Property oldProperty, Object value, Shape currentShape, Shape oldNewShape) { Location oldLocation = oldProperty.getLocation(); Location newLocation = ((BasicAllocator) currentShape.allocator()).locationForValueUpcast(value, oldLocation); Property newProperty = oldProperty.relocate(newLocation); Shape newShape = oldNewShape.replaceProperty(oldProperty, newProperty); newProperty.setSafe(object, value, currentShape, newShape); return newProperty; } public BaseAllocator createAllocator(Shape shape) { return new DefaultAllocatorImpl((ShapeImpl) shape); } public BaseAllocator createAllocator(Layout layout) { return new DefaultAllocatorImpl((LayoutImpl) layout); } public static class DefaultAllocatorImpl extends BasicAllocator { protected DefaultAllocatorImpl(LayoutImpl layout) { super(layout); } protected DefaultAllocatorImpl(ShapeImpl shape) { super(shape); } @Override public Location locationForValue(Object value, boolean useFinal, boolean nonNull) { return super.newDualLocationForValue(value); } @Override public Location declaredLocation(Object value) { return super.newDeclaredDualLocation(value); } } }