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annotate graal/com.oracle.graal.java/src/com/oracle/graal/java/GraphBuilderPlugin.java @ 19050:75da87c96605

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initial commit of GraphBuilderPhase plugins
author Doug Simon <doug.simon@oracle.com>
date Sat, 31 Jan 2015 00:30:00 +0100
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children 69f2926cd2ab
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19050
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1 /*
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2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.graal.java;
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24
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25 import com.oracle.graal.api.meta.*;
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26 import com.oracle.graal.compiler.common.*;
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27 import com.oracle.graal.nodes.*;
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28
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29 /**
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30 * Extensions for handling certain bytecode instructions while building a
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31 * {@linkplain StructuredGraph graph} from a bytecode stream.
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32 */
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33 public interface GraphBuilderPlugin {
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34
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35 /**
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36 * Processes an invocation parsed in a bytecode stream and add nodes to a graph being
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37 * constructed that implement the semantics of the invocation.
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38 *
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39 * @param builder object being used to build a graph
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40 * @param args the arguments to the invocation
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41 */
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42 boolean handleInvocation(GraphBuilderContext builder, ValueNode[] args);
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43
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44 /**
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45 * Gets the target method handled by {@link #handleInvocation(GraphBuilderContext, ValueNode[])}
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46 * .
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47 */
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48 ResolvedJavaMethod getInvocationTarget(MetaAccessProvider metaAccess);
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49
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50 static ResolvedJavaMethod resolveTarget(MetaAccessProvider metaAccess, Class<?> clazz, String methodName, Class<?>... parameterTypes) {
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51 try {
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52 return metaAccess.lookupJavaMethod(methodName.equals("<init>") ? clazz.getDeclaredConstructor(parameterTypes) : clazz.getDeclaredMethod(methodName, parameterTypes));
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53 } catch (NoSuchMethodException | SecurityException e) {
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54 throw new GraalInternalError(e);
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55 }
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56 }
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57 }