/*
* Copyright (c) 2017, 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.
*
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package com.oracle.truffle.tools.chromeinspector.instrument;
import com.oracle.truffle.api.instrumentation.TruffleInstrument;
import com.oracle.truffle.tools.chromeinspector.TypeHandler;
@TruffleInstrument.Registration(id = TypeProfileInstrument.ID, services = {Enabler.class, TypeHandler.Provider.class}, internal = true)
public final class TypeProfileInstrument extends TruffleInstrument implements Enabler, TypeHandler.Provider {
public static final String ID = "TypeProfileInstrument";
private Env env;
private TypeHandler th;
@Override
protected void onCreate(Env e) {
this.env = e;
e.registerService(this);
}
@Override
protected void onDispose(Env e) {
disable();
super.onDispose(e);
}
@Override
public void enable() {
if (th == null) {
th = new TypeHandler(env);
}
}
@Override
public void disable() {
th = null;
}
@Override
public TypeHandler getTypeHandler() {
return th;
}
}