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Simple Language: A simple dynamic programming language to demonstrate Truffle features
author Christian Wimmer <christian.wimmer@oracle.com>
date Fri, 21 Dec 2012 10:45:37 -0800
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children 31da1716950f
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7292
213c1297a814 Simple Language: A simple dynamic programming language to demonstrate Truffle features
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1 /*
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2 * Copyright (c) 2012, 2012, Oracle and/or its affiliates. All rights reserved.
213c1297a814 Simple Language: A simple dynamic programming language to demonstrate Truffle features
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
213c1297a814 Simple Language: A simple dynamic programming language to demonstrate Truffle features
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4 *
213c1297a814 Simple Language: A simple dynamic programming language to demonstrate Truffle features
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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
213c1297a814 Simple Language: A simple dynamic programming language to demonstrate Truffle features
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7 * published by the Free Software Foundation.
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8 *
213c1297a814 Simple Language: A simple dynamic programming language to demonstrate Truffle features
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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
213c1297a814 Simple Language: A simple dynamic programming language to demonstrate Truffle features
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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,
213c1297a814 Simple Language: A simple dynamic programming language to demonstrate Truffle features
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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
213c1297a814 Simple Language: A simple dynamic programming language to demonstrate Truffle features
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21 * questions.
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22 */
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23 package com.oracle.truffle.sl;
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24
213c1297a814 Simple Language: A simple dynamic programming language to demonstrate Truffle features
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25 import java.io.*;
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26 import java.math.*;
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27 import java.util.*;
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28
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29 import com.oracle.truffle.api.frame.*;
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30 import com.oracle.truffle.sl.nodes.*;
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31 import com.oracle.truffle.sl.ops.*;
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32 import com.oracle.truffle.sl.types.*;
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33
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34 public class NodeFactory {
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35
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36 private final HashMap<String, FunctionDefinitionNode> functions;
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37 private final PrintStream printOutput;
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38
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39 private FrameDescriptor frameDescriptor;
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40 private TypedNode returnValue;
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41
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42 public NodeFactory(PrintStream printOutput) {
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43 this.functions = new HashMap<>();
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44 this.printOutput = printOutput;
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45 }
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46
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47 public FunctionDefinitionNode findFunction(String name) {
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48 return functions.get(name);
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49 }
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50
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51 public void startFunction() {
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52 frameDescriptor = new FrameDescriptor(TypesGen.TYPES);
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53 }
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54
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55 public void createFunction(StatementNode body, String name) {
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56 functions.put(name, new FunctionDefinitionNode(body, frameDescriptor, name, returnValue));
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57 }
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58
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59 public TypedNode createLocal(String name) {
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60 return ReadLocalOpFactory.create(frameDescriptor.findOrAddFrameSlot(name));
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61 }
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62
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63 public TypedNode createStringLiteral(String value) {
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64 return StringLiteralFactory.create(value);
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65 }
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66
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67 public StatementNode createAssignment(String name, TypedNode right) {
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68 return WriteLocalOpFactory.create(right, frameDescriptor.findOrAddFrameSlot(name));
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69 }
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70
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71 public StatementNode createPrint(List<TypedNode> expressions) {
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72 return new PrintNode(expressions, printOutput);
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73 }
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74
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75 public StatementNode createWhile(ConditionNode condition, StatementNode body) {
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76 return new WhileNode(condition, body);
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77 }
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78
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79 public StatementNode createBlock(List<StatementNode> statements) {
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80 return new BlockNode(statements.toArray(new StatementNode[statements.size()]));
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81 }
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82
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83 public TypedNode createBinary(String operation, TypedNode left, TypedNode right) {
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84 switch (operation) {
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85 case "+":
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86 return AddOpFactory.create(left, right);
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87 case "*":
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88 return MulOpFactory.create(left, right);
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89 case "<":
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90 return LessThanOpFactory.create(left, right);
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91 case "&&":
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92 return LogicalAndOpFactory.create(left, right);
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93 default:
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94 throw new RuntimeException("unexpected operation: " + operation);
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95 }
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96 }
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97
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98 public TypedNode createNumericLiteral(String value) {
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99 try {
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100 return IntegerLiteralFactory.create(Integer.parseInt(value));
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101 } catch (NumberFormatException ex) {
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102 return BigIntegerLiteralFactory.create(new BigInteger(value));
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103 }
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104 }
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105
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106 public TypedNode createTime() {
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107 return TimeOpFactory.create();
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108 }
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109
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110 public StatementNode createReturn(TypedNode value) {
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111 FrameSlot slot = frameDescriptor.findOrAddFrameSlot("<retval>");
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112 if (returnValue == null) {
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113 returnValue = ReadLocalOpFactory.create(slot);
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114 }
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115 StatementNode write = WriteLocalOpFactory.create(value, slot);
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116 return new ReturnNode(write);
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117 }
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118 }