/*
 * 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.
 *
 * 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
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 */
package jdk.vm.ci.meta;

An implementation of ProfilingInfo that can used in the absence of real profile information.
/** * An implementation of {@link ProfilingInfo} that can used in the absence of real profile * information. */
public final class DefaultProfilingInfo implements ProfilingInfo { private static final ProfilingInfo[] NO_PROFILING_INFO = new ProfilingInfo[]{new DefaultProfilingInfo(TriState.TRUE), new DefaultProfilingInfo(TriState.FALSE), new DefaultProfilingInfo(TriState.UNKNOWN)}; private final TriState exceptionSeen; DefaultProfilingInfo(TriState exceptionSeen) { this.exceptionSeen = exceptionSeen; } @Override public int getCodeSize() { return 0; } @Override public JavaTypeProfile getTypeProfile(int bci) { return null; } @Override public JavaMethodProfile getMethodProfile(int bci) { return null; } @Override public double getBranchTakenProbability(int bci) { return -1; } @Override public double[] getSwitchProbabilities(int bci) { return null; } @Override public TriState getExceptionSeen(int bci) { return exceptionSeen; } @Override public TriState getNullSeen(int bci) { return TriState.UNKNOWN; } @Override public int getExecutionCount(int bci) { return -1; } public static ProfilingInfo get(TriState exceptionSeen) { return NO_PROFILING_INFO[exceptionSeen.ordinal()]; } @Override public int getDeoptimizationCount(DeoptimizationReason reason) { return 0; } @Override public boolean isMature() { return false; } @Override public String toString() { return "DefaultProfilingInfo<" + this.toString(null, "; ") + ">"; } public void setMature() { // Do nothing } public boolean setCompilerIRSize(Class<?> irType, int nodeCount) { return false; } public int getCompilerIRSize(Class<?> irType) { return -1; } }