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annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/CallTarget.java @ 7530:5e3d1a68664e

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author Doug Simon <doug.simon@oracle.com>
date Wed, 23 Jan 2013 16:34:57 +0100
parents a4b84ba6dc2e
children 494b818b527c
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a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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1 /*
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2 * Copyright (c) 2012, 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.truffle.api;
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24
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25 import com.oracle.truffle.api.frame.*;
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27 /**
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28 * Represents the target of a call. Instances of this interface can be created using the
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29 * {@link TruffleRuntime#createCallTarget(com.oracle.truffle.api.nodes.RootNode, FrameDescriptor)}
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30 * method.
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31 */
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32 public abstract class CallTarget {
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33
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34 /**
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35 * Calls this target as a root method and without arguments.
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36 *
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37 * @return the return result of the call
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38 */
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39 public final Object call() {
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40 return call(null, Arguments.EMPTY_ARGUMENTS);
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41 }
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43 /**
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44 * Calls this target with a caller frame and no arguments.
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45 *
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46 * @param caller the caller frame
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47 * @return the return result of the call
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48 */
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49 public final Object call(PackedFrame caller) {
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50 return call(caller, Arguments.EMPTY_ARGUMENTS);
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51 }
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53 /**
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54 * Calls this target as a root method passing arguments.
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55 *
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56 * @param arguments the arguments that should be passed to the callee
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57 * @return the return result of the call
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58 */
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59 public final Object call(Arguments arguments) {
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60 return call(null, arguments);
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61 }
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63 /**
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64 * Calls this target passing a caller frame and arguments.
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65 *
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66 * @param caller the caller frame
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67 * @param arguments the arguments that should be passed to the callee
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68 * @return the return result of the call
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69 */
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70 public abstract Object call(PackedFrame caller, Arguments arguments);
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71 }