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annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/RootNode.java @ 11535:8f0fb0ade839

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Truffle: add alternate Node/RootNode constructors with SourceSection argument.
author Michael Van De Vanter <michael.van.de.vanter@oracle.com>
date Thu, 05 Sep 2013 15:03:36 -0700
parents 494b818b527c
children ac5b0f31f7a2
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1 /*
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2 * Copyright (c) 2012, 2013, 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. Oracle designates this
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8 * particular file as subject to the "Classpath" exception as provided
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9 * by Oracle in the LICENSE file that accompanied this code.
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10 *
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11 * This code is distributed in the hope that it will be useful, but WITHOUT
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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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14 * version 2 for more details (a copy is included in the LICENSE file that
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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15 * accompanied this code).
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16 *
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17 * You should have received a copy of the GNU General Public License version
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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18 * 2 along with this work; if not, write to the Free Software Foundation,
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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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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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20 *
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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22 * or visit www.oracle.com if you need additional information or have any
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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23 * questions.
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24 */
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25 package com.oracle.truffle.api.nodes;
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27 import com.oracle.truffle.api.*;
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28 import com.oracle.truffle.api.frame.*;
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30 /**
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31 * A root node is a node with a method to execute it given only a frame as a parameter. Therefore, a
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32 * root node can be used to create a call target using
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33 * {@link TruffleRuntime#createCallTarget(RootNode, FrameDescriptor)}.
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34 */
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35 public abstract class RootNode extends Node {
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36
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37 protected RootNode() {
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38 }
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39
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40 protected RootNode(SourceSection sourceSection) {
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41 super(sourceSection);
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42 }
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43
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44 /**
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45 * Executes this function using the specified frame and returns the result value.
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46 *
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47 * @param frame the frame of the currently executing guest language method
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48 * @return the value of the execution
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49 */
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50 public abstract Object execute(VirtualFrame frame);
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51
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52 private CallTarget callTarget;
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53
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54 public CallTarget getCallTarget() {
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55 return callTarget;
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56 }
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57
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58 public void setCallTarget(CallTarget callTarget) {
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59 this.callTarget = callTarget;
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60 }
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61 }