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annotate graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/controlflow/SLBlockNode.java @ 13836:64c77f0577bb

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More documentation and improvements of Simple Language
author Christian Wimmer <christian.wimmer@oracle.com>
date Thu, 30 Jan 2014 17:53:27 -0800
parents b16ec83edc73
children afd6fa5e8229
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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
213c1297a814 Simple Language: A simple dynamic programming language to demonstrate Truffle features
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
213c1297a814 Simple Language: A simple dynamic programming language to demonstrate Truffle features
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
213c1297a814 Simple Language: A simple dynamic programming language to demonstrate Truffle features
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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).
213c1297a814 Simple Language: A simple dynamic programming language to demonstrate Truffle features
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14 *
213c1297a814 Simple Language: A simple dynamic programming language to demonstrate Truffle features
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15 * You should have received a copy of the GNU General Public License version
213c1297a814 Simple Language: A simple dynamic programming language to demonstrate Truffle features
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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
213c1297a814 Simple Language: A simple dynamic programming language to demonstrate Truffle features
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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.nodes.controlflow;
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24
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25 import com.oracle.truffle.api.frame.*;
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26 import com.oracle.truffle.api.nodes.*;
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27 import com.oracle.truffle.sl.nodes.*;
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28
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29 /**
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30 * A statement node that just executes a list of other statements.
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31 */
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32 @NodeInfo(shortName = "block")
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33 public class SLBlockNode extends SLStatementNode {
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34
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35 /**
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36 * The array of child nodes. The annotation {@link com.oracle.truffle.api.nodes.Node.Children
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37 * Children} informs Truffle that the field contains multiple children. It is a Truffle
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38 * requirement that the field is {@code final} and an array of nodes.
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39 */
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40 @Children private final SLStatementNode[] bodyNodes;
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41
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42 public SLBlockNode(SLStatementNode[] bodyNodes) {
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43 /*
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44 * It is a Truffle requirement to call adoptChildren(), which performs all the necessary
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45 * steps to add the new children to the node tree.
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46 */
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47 this.bodyNodes = adoptChildren(bodyNodes);
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48 }
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49
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50 /**
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51 * Execute all child statements. The annotation {@link ExplodeLoop} triggers full unrolling of
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52 * the loop during compilation. This allows the {@link SLStatementNode#executeVoid} method of
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53 * all children to be inlined.
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54 */
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55 @Override
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56 @ExplodeLoop
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57 public void executeVoid(VirtualFrame frame) {
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58 for (SLStatementNode statement : bodyNodes) {
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59 statement.executeVoid(frame);
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60 }
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61 }
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62 }