Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.api/src/com/oracle/truffle/api/impl/DefaultVirtualFrame.java @ 18243:b363053f6cac
Add missing import.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Tue, 01 Jul 2014 21:44:57 +0200 |
parents | 64dcb92ee75a |
children | 94f16a759646 |
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/* * Copyright (c) 2012, 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. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * 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.api.impl; import java.util.*; import com.oracle.truffle.api.*; import com.oracle.truffle.api.frame.*; /** * This is an implementation-specific class. Do not use or instantiate it. Instead, use * {@link TruffleRuntime#createVirtualFrame(Object[], FrameDescriptor)} to create a * {@link VirtualFrame}. */ final class DefaultVirtualFrame implements VirtualFrame { private final FrameDescriptor descriptor; private final Object[] arguments; private Object[] locals; private byte[] tags; DefaultVirtualFrame(FrameDescriptor descriptor, Object[] arguments) { this.descriptor = descriptor; this.arguments = arguments; this.locals = new Object[descriptor.getSize()]; Arrays.fill(locals, descriptor.getTypeConversion().getDefaultValue()); this.tags = new byte[descriptor.getSize()]; } @Override public Object[] getArguments() { return arguments; } @Override public MaterializedFrame materialize() { return new DefaultMaterializedFrame(this); } @Override public Object getObject(FrameSlot slot) throws FrameSlotTypeException { verifyGet(slot, FrameSlotKind.Object); return locals[slot.getIndex()]; } @Override public void setObject(FrameSlot slot, Object value) { verifySet(slot, FrameSlotKind.Object); locals[slot.getIndex()] = value; } @Override public byte getByte(FrameSlot slot) throws FrameSlotTypeException { verifyGet(slot, FrameSlotKind.Byte); return (byte) locals[slot.getIndex()]; } @Override public void setByte(FrameSlot slot, byte value) { verifySet(slot, FrameSlotKind.Byte); locals[slot.getIndex()] = value; } @Override public boolean getBoolean(FrameSlot slot) throws FrameSlotTypeException { verifyGet(slot, FrameSlotKind.Boolean); return (boolean) locals[slot.getIndex()]; } @Override public void setBoolean(FrameSlot slot, boolean value) { verifySet(slot, FrameSlotKind.Boolean); locals[slot.getIndex()] = value; } @Override public int getInt(FrameSlot slot) throws FrameSlotTypeException { verifyGet(slot, FrameSlotKind.Int); return (int) locals[slot.getIndex()]; } @Override public void setInt(FrameSlot slot, int value) { verifySet(slot, FrameSlotKind.Int); locals[slot.getIndex()] = value; } @Override public long getLong(FrameSlot slot) throws FrameSlotTypeException { verifyGet(slot, FrameSlotKind.Long); return (long) locals[slot.getIndex()]; } @Override public void setLong(FrameSlot slot, long value) { verifySet(slot, FrameSlotKind.Long); locals[slot.getIndex()] = value; } @Override public float getFloat(FrameSlot slot) throws FrameSlotTypeException { verifyGet(slot, FrameSlotKind.Float); return (float) locals[slot.getIndex()]; } @Override public void setFloat(FrameSlot slot, float value) { verifySet(slot, FrameSlotKind.Float); locals[slot.getIndex()] = value; } @Override public double getDouble(FrameSlot slot) throws FrameSlotTypeException { verifyGet(slot, FrameSlotKind.Double); return (double) locals[slot.getIndex()]; } @Override public void setDouble(FrameSlot slot, double value) { verifySet(slot, FrameSlotKind.Double); locals[slot.getIndex()] = value; } @Override public FrameDescriptor getFrameDescriptor() { return this.descriptor; } @Override public Object getValue(FrameSlot slot) { int slotIndex = slot.getIndex(); if (slotIndex >= tags.length) { if (!resize()) { throw new IllegalArgumentException(String.format("The frame slot '%s' is not known by the frame descriptor.", slot)); } } return locals[slotIndex]; } private void verifySet(FrameSlot slot, FrameSlotKind accessKind) { int slotIndex = slot.getIndex(); if (slotIndex >= tags.length) { if (!resize()) { throw new IllegalArgumentException(String.format("The frame slot '%s' is not known by the frame descriptor.", slot)); } } tags[slotIndex] = (byte) accessKind.ordinal(); } private void verifyGet(FrameSlot slot, FrameSlotKind accessKind) throws FrameSlotTypeException { int slotIndex = slot.getIndex(); if (slotIndex >= tags.length) { if (!resize()) { throw new IllegalArgumentException(String.format("The frame slot '%s' is not known by the frame descriptor.", slot)); } } byte tag = tags[slotIndex]; if (accessKind == FrameSlotKind.Object ? tag != 0 : tag != accessKind.ordinal()) { if (slot.getKind() == accessKind || tag == 0) { descriptor.getTypeConversion().updateFrameSlot(this, slot, getValue(slot)); if (tags[slotIndex] == accessKind.ordinal()) { return; } } throw new FrameSlotTypeException(); } } private boolean resize() { int oldSize = tags.length; int newSize = descriptor.getSize(); if (newSize > oldSize) { locals = Arrays.copyOf(locals, newSize); Arrays.fill(locals, oldSize, newSize, descriptor.getTypeConversion().getDefaultValue()); tags = Arrays.copyOf(tags, newSize); return true; } return false; } private byte getTag(FrameSlot slot) { int slotIndex = slot.getIndex(); if (slotIndex >= tags.length) { if (!resize()) { throw new IllegalArgumentException(String.format("The frame slot '%s' is not known by the frame descriptor.", slot)); } } return tags[slotIndex]; } @Override public boolean isObject(FrameSlot slot) { return getTag(slot) == FrameSlotKind.Object.ordinal(); } @Override public boolean isByte(FrameSlot slot) { return getTag(slot) == FrameSlotKind.Byte.ordinal(); } @Override public boolean isBoolean(FrameSlot slot) { return getTag(slot) == FrameSlotKind.Boolean.ordinal(); } @Override public boolean isInt(FrameSlot slot) { return getTag(slot) == FrameSlotKind.Int.ordinal(); } @Override public boolean isLong(FrameSlot slot) { return getTag(slot) == FrameSlotKind.Long.ordinal(); } @Override public boolean isFloat(FrameSlot slot) { return getTag(slot) == FrameSlotKind.Float.ordinal(); } @Override public boolean isDouble(FrameSlot slot) { return getTag(slot) == FrameSlotKind.Double.ordinal(); } }