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annotate graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/builtins/SLBuiltinNode.java @ 19312:a8d128366ebf

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author Andreas Woess <andreas.woess@jku.at>
date Thu, 12 Feb 2015 04:01:46 +0100
parents 301fea50e42e
children
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1 /*
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2 * Copyright (c) 2012, 2014, 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
71991b7a0f14 SL: Enhanced SimpleLanguage with support for if statements, function calls, function caching + inlining and builtins.
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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
71991b7a0f14 SL: Enhanced SimpleLanguage with support for if statements, function calls, function caching + inlining and builtins.
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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
71991b7a0f14 SL: Enhanced SimpleLanguage with support for if statements, function calls, function caching + inlining and builtins.
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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
71991b7a0f14 SL: Enhanced SimpleLanguage with support for if statements, function calls, function caching + inlining and builtins.
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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.sl.builtins;
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24
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25 import com.oracle.truffle.api.dsl.*;
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26 import com.oracle.truffle.api.source.*;
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27 import com.oracle.truffle.sl.nodes.*;
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28 import com.oracle.truffle.sl.runtime.*;
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29
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30 /**
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31 * Base class for all builtin functions. It contains the Truffle DSL annotation {@link NodeChild}
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32 * that defines the function arguments.<br>
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33 * Builtin functions need access to the {@link SLContext}. Instead of defining a Java field manually
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34 * and setting it in a constructor, we use the Truffle DSL annotation {@link NodeField} that
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35 * generates the field and constructor automatically.
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36 * <p>
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37 * The builtin functions are registered in {@link SLContext#installBuiltins}. Every builtin node
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38 * subclass is instantiated there, wrapped into a function, and added to the
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39 * {@link SLFunctionRegistry}. This ensures that builtin functions can be called like user-defined
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40 * functions; there is no special function lookup or call node for builtin functions.
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41 */
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42 @NodeChild(value = "arguments", type = SLExpressionNode[].class)
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43 @NodeField(name = "context", type = SLContext.class)
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44 @GenerateNodeFactory
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45 public abstract class SLBuiltinNode extends SLExpressionNode {
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46
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47 public SLBuiltinNode(SourceSection src) {
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48 super(src);
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49 }
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50
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51 /**
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52 * Accessor for the {@link SLContext}. The implementation of this method is generated
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53 * automatically based on the {@link NodeField} annotation on the class.
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54 */
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55 public abstract SLContext getContext();
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56 }