Mercurial > hg > blitz_condensed
annotate src/com/go/trove/classfile/CodeAssembler.java @ 0:3dc0c5604566
Initial checkin of blitz 2.0 fcs - no installer yet.
author | Dan Creswell <dan.creswell@gmail.com> |
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date | Sat, 21 Mar 2009 11:00:06 +0000 |
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1 /* ==================================================================== |
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2 * Trove - Copyright (c) 1997-2000 Walt Disney Internet Group |
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3 * ==================================================================== |
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4 * The Tea Software License, Version 1.1 |
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5 * |
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6 * Copyright (c) 2000 Walt Disney Internet Group. All rights reserved. |
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7 * |
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8 * Redistribution and use in source and binary forms, with or without |
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9 * modification, are permitted provided that the following conditions |
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10 * are met: |
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11 * |
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12 * 1. Redistributions of source code must retain the above copyright |
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13 * notice, this list of conditions and the following disclaimer. |
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14 * |
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15 * 2. Redistributions in binary form must reproduce the above copyright |
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16 * notice, this list of conditions and the following disclaimer in |
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17 * the documentation and/or other materials provided with the |
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18 * distribution. |
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19 * |
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20 * 3. The end-user documentation included with the redistribution, |
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21 * if any, must include the following acknowledgment: |
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22 * "This product includes software developed by the |
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23 * Walt Disney Internet Group (http://opensource.go.com/)." |
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24 * Alternately, this acknowledgment may appear in the software itself, |
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25 * if and wherever such third-party acknowledgments normally appear. |
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26 * |
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27 * 4. The names "Tea", "TeaServlet", "Kettle", "Trove" and "BeanDoc" must |
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28 * not be used to endorse or promote products derived from this |
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29 * software without prior written permission. For written |
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30 * permission, please contact opensource@dig.com. |
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31 * |
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32 * 5. Products derived from this software may not be called "Tea", |
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33 * "TeaServlet", "Kettle" or "Trove", nor may "Tea", "TeaServlet", |
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34 * "Kettle", "Trove" or "BeanDoc" appear in their name, without prior |
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35 * written permission of the Walt Disney Internet Group. |
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36 * |
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37 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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38 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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39 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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40 * DISCLAIMED. IN NO EVENT SHALL THE WALT DISNEY INTERNET GROUP OR ITS |
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41 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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42 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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43 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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44 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
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45 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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46 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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47 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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48 * ==================================================================== |
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49 * |
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50 * For more information about Tea, please see http://opensource.go.com/. |
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51 */ |
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52 |
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53 package com.go.trove.classfile; |
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54 |
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55 /****************************************************************************** |
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56 * CodeAssembler is a high-level interface for assembling Java Virtual Machine |
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57 * byte code. It can also be used as a visitor to a disassembler. |
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58 * |
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59 * @author Brian S O'Neill |
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60 * @version |
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61 * <!--$$Revision: 1.1 $-->, <!--$$JustDate:--> 9/07/00 <!-- $--> |
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62 */ |
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63 public interface CodeAssembler { |
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64 /** |
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65 * Returns LocalVariable references for all the parameters passed into |
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66 * the method being assembled, not including any "this" reference. |
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67 * Returns a zero-length array if there are no passed in parameters. |
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68 * |
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69 * <p>The names of the LocalVariables returned by this method are initially |
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70 * set to null. It is encouraged that a name be provided. |
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71 */ |
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72 public LocalVariable[] getParameters(); |
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73 |
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74 /** |
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75 * Creates a LocalVariable reference from a name and type. Although name |
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76 * is optional, it is encouraged that a name be provided. Names do not |
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77 * need to be unique. |
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78 * |
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79 * @param name Optional name for the LocalVariable. |
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80 * @param type The type of data that the requested LocalVariable can |
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81 * store. |
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82 */ |
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83 public LocalVariable createLocalVariable(String name, |
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84 TypeDescriptor type); |
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85 |
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86 /** |
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87 * Creates a label, whose location must be set. To create a label and |
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88 * locate it here, the following example demonstrates how the call to |
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89 * setLocation can be chained: |
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90 * |
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91 * <pre> |
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92 * CodeBuilder builder; |
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93 * ... |
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94 * Label label = builder.createLabel().setLocation(); |
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95 * </pre> |
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96 * |
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97 * @see Label#setLocation |
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98 */ |
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99 public Label createLabel(); |
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100 |
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101 /** |
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102 * Sets up an exception handler located here, the location of the next |
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103 * code to be generated. |
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104 * |
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105 * @param startLocation Location at the start of the section of |
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106 * code to be wrapped by an exception handler. |
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107 * @param endLocation Location directly after the end of the |
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108 * section of code. |
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109 * @param catchClassName The name of the type of exception to be caught; |
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110 * if null, then catch every object. |
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111 */ |
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112 public void exceptionHandler(Location startLocation, |
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113 Location endLocation, |
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114 String catchClassName); |
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115 |
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116 /** |
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117 * Map the location of the next code to be generated to a line number |
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118 * in source code. This enables line numbers in a stack trace from the |
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119 * generated code. |
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120 */ |
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121 public void mapLineNumber(int lineNumber); |
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122 |
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123 // load-constant-to-stack style instructions |
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124 |
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125 /** |
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126 * Generates code that loads a constant string value onto the stack. |
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127 * If value is null, the generated code loads a null onto the stack. |
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128 * Strings that exceed 65535 UTF encoded bytes in length are loaded by |
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129 * creating a StringBuffer, appending substrings, and then converting to a |
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130 * String. |
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131 */ |
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132 public void loadConstant(String value); |
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133 |
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134 /** |
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135 * Generates code that loads a constant boolean value onto the stack. |
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136 */ |
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137 public void loadConstant(boolean value); |
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138 |
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139 /** |
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140 * Generates code that loads a constant int, char, short or byte value |
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141 * onto the stack. |
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142 */ |
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143 public void loadConstant(int value); |
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144 |
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145 /** |
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146 * Generates code that loads a constant long value onto the stack. |
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147 */ |
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148 public void loadConstant(long value); |
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149 |
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150 /** |
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151 * Generates code that loads a constant float value onto the stack. |
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152 */ |
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153 public void loadConstant(float value); |
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154 |
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155 /** |
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156 * Generates code that loads a constant double value onto the stack. |
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157 */ |
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158 public void loadConstant(double value); |
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159 |
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160 // load-local-to-stack style instructions |
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161 |
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162 /** |
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163 * Generates code that loads a local variable onto the stack. Parameters |
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164 * passed to a method and the "this" reference are all considered local |
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165 * variables, as well as any that were created. |
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166 * |
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167 * @param local The local variable reference |
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168 */ |
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169 public void loadLocal(LocalVariable local); |
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170 |
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171 /** |
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172 * Loads a reference to "this" onto the stack. Static methods have no |
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173 * "this" reference, and an exception is thrown when attempting to |
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174 * generate "this" in a static method. |
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175 */ |
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176 public void loadThis(); |
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177 |
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178 // store-from-stack-to-local style instructions |
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179 |
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180 /** |
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181 * Generates code that pops a value off of the stack into a local variable. |
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182 * Parameters passed to a method and the "this" reference are all |
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183 * considered local variables, as well as any that were created. |
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184 * |
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185 * @param local The local variable reference |
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186 */ |
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187 public void storeLocal(LocalVariable local); |
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188 |
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189 // load-to-stack-from-array style instructions |
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190 |
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191 /** |
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192 * Generates code that loads a value from an array. An array |
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193 * reference followed by an index must be on the stack. The array |
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194 * reference and index are replaced by the value retrieved from the array |
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195 * after the generated instruction has executed. |
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196 * |
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197 * <p>The type doesn't need to be an exact match for objects. Object.class |
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198 * works fine for all objects. For primitive types, use the class that |
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199 * matches that type. For an int the type is int.class. |
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200 * |
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201 * @param type The type of data stored in the array. |
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202 */ |
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203 public void loadFromArray(Class type); |
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204 |
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205 // store-to-array-from-stack style instructions |
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206 |
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207 /** |
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208 * Generates code that stores a value to an array. An array |
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209 * reference followed by an index, followed by a value (or two if a long |
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210 * or double) must be on the stack. All items on the stack are gone |
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211 * after the generated instruction has executed. |
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212 * |
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213 * <p>The type doesn't need to be an exact match for objects. Object.class |
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214 * works fine for all objects. For primitive types, use the class that |
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215 * matches that type. For an int the type is int.class. |
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216 * |
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217 * @param type The type of data stored in the array. |
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218 */ |
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219 public void storeToArray(Class type); |
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220 |
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221 // load-field-to-stack style instructions |
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222 |
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223 /** |
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224 * Generates code that loads a value from a field from this class. |
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225 * An object reference must be on the stack. After the generated code |
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226 * has executed, the object reference is replaced by the value retrieved |
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227 * from the field. |
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228 */ |
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229 public void loadField(String fieldName, |
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230 TypeDescriptor type); |
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231 |
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232 /** |
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233 * Generates code that loads a value from a field from any class. |
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234 * An object reference must be on the stack. After the generated code |
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235 * has executed, the object reference is replaced by the value retrieved |
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236 * from the field. |
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237 */ |
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238 public void loadField(String className, |
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239 String fieldName, |
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240 TypeDescriptor type); |
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241 |
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242 /** |
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243 * Generates code that loads a value from a static field from this class. |
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244 * After the generated code has executed, the value retrieved is placed |
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245 * on the stack. |
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246 */ |
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247 public void loadStaticField(String fieldName, |
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248 TypeDescriptor type); |
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249 |
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250 /** |
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251 * Generates code that loads a value from a static field from any class. |
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252 * After the generated code has executed, the value retrieved is placed |
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253 * on the stack. |
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254 */ |
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255 public void loadStaticField(String className, |
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256 String fieldName, |
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257 TypeDescriptor type); |
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258 |
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259 // store-to-field-from-stack style instructions |
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260 |
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261 /** |
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262 * Generates code that stores a value into a field from this class. |
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263 * An object reference and value must be on the stack. After the generated |
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264 * code has executed, the object reference and value are gone from |
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265 * the stack. |
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266 */ |
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267 public void storeField(String fieldName, |
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268 TypeDescriptor type); |
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269 |
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270 /** |
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271 * Generates code that stores a value into a field from any class. |
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272 * An object reference and value must be on the stack. After the generated |
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273 * code has executed, the object reference and value are gone from |
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274 * the stack. |
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275 */ |
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276 public void storeField(String className, |
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277 String fieldName, |
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278 TypeDescriptor type); |
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279 |
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280 /** |
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281 * Generates code that stores a value into a field from this class. |
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282 * A value must be on the stack. After the generated |
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283 * code has executed, the value is gone from the stack. |
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284 */ |
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285 public void storeStaticField(String fieldName, |
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286 TypeDescriptor type); |
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287 |
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288 /** |
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289 * Generates code that stores a value into a field from any class. |
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290 * A value must be on the stack. After the generated |
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291 * code has executed, the value is gone from the stack. |
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292 */ |
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293 public void storeStaticField(String className, |
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294 String fieldName, |
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295 TypeDescriptor type); |
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296 |
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297 // return style instructions |
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298 |
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299 /** |
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300 * Generates code that returns void. |
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301 */ |
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302 public void returnVoid(); |
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303 |
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304 /** |
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305 * Generates code that returns an object or primitive type. The value to |
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306 * return must be on the stack. |
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307 * |
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308 * <p>The type doesn't need to be an exact match for objects. Object.class |
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309 * works fine for all objects. For primitive types, use the class that |
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310 * matches that type. For an int the type is int.class. |
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311 */ |
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312 public void returnValue(Class type); |
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313 |
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314 // numerical conversion style instructions |
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315 |
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316 /** |
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317 * Generates code that converts the value of a primitive type already |
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318 * on the stack. |
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319 */ |
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320 public void convert(Class fromType, Class toType); |
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321 |
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322 // invocation style instructions |
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323 |
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324 /** |
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325 * Generates code to invoke a virtual method in this class. The object |
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326 * reference and the method's argument(s) must be on the stack. |
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327 * |
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328 * @param ret May be null if method returns void. |
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329 * @param params May be null if method takes no parameters. |
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330 */ |
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331 public void invokeVirtual(String methodName, |
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332 TypeDescriptor ret, |
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333 TypeDescriptor[] params); |
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334 |
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335 /** |
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336 * Generates code to invoke a virtual method in any class. The object |
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337 * reference and the method's argument(s) must be on the stack. |
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338 * |
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339 * @param ret May be null if method returns void. |
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340 * @param params May be null if method takes no parameters. |
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341 */ |
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342 public void invokeVirtual(String className, |
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343 String methodName, |
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344 TypeDescriptor ret, |
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345 TypeDescriptor[] params); |
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346 |
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347 /** |
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348 * Generates code to invoke a static method in this class. The method's |
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349 * argument(s) must be on the stack. |
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350 * |
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351 * @param ret May be null if method returns void. |
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352 * @param params May be null if method takes no parameters. |
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353 */ |
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354 public void invokeStatic(String methodName, |
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355 TypeDescriptor ret, |
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356 TypeDescriptor[] params); |
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357 |
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358 /** |
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359 * Generates code to invoke a static method in any class. The method's |
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360 * argument(s) must be on the stack. |
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361 * |
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362 * @param ret May be null if method returns void. |
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363 * @param params May be null if method takes no parameters. |
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364 */ |
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365 public void invokeStatic(String className, |
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366 String methodName, |
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367 TypeDescriptor ret, |
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368 TypeDescriptor[] params); |
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369 |
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370 /** |
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371 * Generates code to invoke an interface method in any class. The object |
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372 * reference and the method's argument(s) must be on the stack. |
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373 * |
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374 * @param ret May be null if method returns void. |
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375 * @param params May be null if method takes no parameters. |
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376 */ |
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377 public void invokeInterface(String className, |
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378 String methodName, |
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379 TypeDescriptor ret, |
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380 TypeDescriptor[] params); |
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381 |
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382 /** |
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383 * Generates code to invoke a private method in this class. |
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384 * The object reference and the method's argument(s) must be on the stack. |
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385 * |
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386 * @param ret May be null if method returns void. |
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387 * @param params May be null if method takes no parameters. |
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388 */ |
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389 public void invokePrivate(String methodName, |
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390 TypeDescriptor ret, |
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391 TypeDescriptor[] params); |
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392 |
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393 /** |
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394 * Generates code to invoke a method in the super class. |
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395 * The object reference and the method's argument(s) must be on the stack. |
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396 * |
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397 * @param ret May be null if method returns void. |
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398 * @param params May be null if method takes no parameters. |
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399 */ |
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400 public void invokeSuper(String superClassName, |
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401 String methodName, |
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402 TypeDescriptor ret, |
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403 TypeDescriptor[] params); |
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404 |
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405 /** |
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406 * Generates code to invoke a class constructor in this class. The object |
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407 * reference and the constructor's argument(s) must be on the stack. |
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408 * |
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409 * @param params May be null if constructor takes no parameters. |
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410 */ |
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411 public void invokeConstructor(TypeDescriptor[] params); |
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412 |
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413 /** |
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414 * Generates code to invoke a class constructor in any class. The object |
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415 * reference and the constructor's argument(s) must be on the stack. |
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416 * |
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417 * @param params May be null if constructor takes no parameters. |
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418 */ |
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419 public void invokeConstructor(String className, TypeDescriptor[] params); |
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420 |
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421 /** |
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422 * Generates code to invoke a super class constructor. The object |
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423 * reference and the constructor's argument(s) must be on the stack. |
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424 * |
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425 * @param params May be null if constructor takes no parameters. |
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426 */ |
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427 public void invokeSuperConstructor(TypeDescriptor[] params); |
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428 |
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429 // creation style instructions |
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430 |
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431 /** |
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432 * Generates code to create a new object. Unless the new object is an |
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433 * array, it is invalid until a constructor method is invoked on it. |
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434 * When creating arrays, the size for each dimension must be on the |
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435 * operand stack. |
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436 * |
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437 * @see #invokeConstructor |
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438 */ |
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439 public void newObject(TypeDescriptor type); |
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440 |
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441 // stack operation style instructions |
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442 |
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443 /** |
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444 * Generates code for the dup instruction. |
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445 */ |
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446 public void dup(); |
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447 |
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448 /** |
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449 * Generates code for the dup_x1 instruction. |
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450 */ |
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451 public void dupX1(); |
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452 |
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453 /** |
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454 * Generates code for the dup_x2 instruction. |
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455 */ |
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456 public void dupX2(); |
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457 |
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458 /** |
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459 * Generates code for the dup2 instruction. |
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460 */ |
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461 public void dup2(); |
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462 |
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463 /** |
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464 * Generates code for the dup2_x1 instruction. |
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465 */ |
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466 public void dup2X1(); |
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467 |
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468 /** |
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469 * Generates code for the dup2_x2 instruction. |
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470 */ |
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471 public void dup2X2(); |
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472 |
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473 /** |
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474 * Generates code for the pop instruction. |
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475 */ |
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476 public void pop(); |
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477 |
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478 /** |
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479 * Generates code for the pop2 instruction. |
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480 */ |
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481 public void pop2(); |
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482 |
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483 /** |
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484 * Generates code for the swap instruction. |
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485 */ |
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486 public void swap(); |
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487 |
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488 /** |
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489 * Generates code for a swap2 instruction. |
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490 */ |
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491 public void swap2(); |
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492 |
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493 // flow control instructions |
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494 |
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495 /** |
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496 * Generates code that performs an unconditional branch to the specified |
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497 * location. |
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498 * |
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499 * @param location The location to branch to |
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500 */ |
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501 public void branch(Location location); |
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502 |
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503 /** |
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504 * Generates code that performs a conditional branch based on the |
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505 * value of an object on the stack. A branch is performed based on whether |
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506 * the object reference on the stack is null or not. |
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507 * |
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508 * @param location The location to branch to |
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509 * @param choice If true, do branch when null, else branch when not null |
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510 */ |
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511 public void ifNullBranch(Location location, boolean choice); |
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512 |
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513 /** |
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514 * Generates code that performs a conditional branch based on the value of |
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515 * two object references on the stack. A branch is performed based on |
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516 * whether the two objects are equal. |
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517 * |
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518 * @param location The location to branch to |
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519 * @param choice If true, branch when equal, else branch when not equal |
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520 */ |
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521 public void ifEqualBranch(Location location, boolean choice); |
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522 |
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parents:
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523 /** |
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524 * Generates code the performs a conditional branch based on a comparison |
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525 * between an int value on the stack and zero. The int value on the |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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526 * stack is on the left side of the comparison expression. |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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527 * |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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528 * @param location The location to branch to |
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|
529 * @param choice One of "==", "!=", "<", ">=", ">" or "<=" |
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530 * @exception IllegalArgumentException When the choice is not valid |
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531 */ |
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532 public void ifZeroComparisonBranch(Location location, String choice) |
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533 throws IllegalArgumentException; |
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534 |
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535 /** |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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536 * Generates code the performs a conditional branch based on a comparison |
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537 * between two int values on the stack. The first int value on the stack |
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538 * is on the left side of the comparison expression. |
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parents:
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539 * |
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540 * @param location The location to branch to |
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541 * @param choice One of "==", "!=", "<", ">=", ">" or "<=" |
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542 * @exception IllegalArgumentException When the choice is not valid |
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parents:
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543 */ |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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544 public void ifComparisonBranch(Location location, String choice) |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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parents:
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545 throws IllegalArgumentException; |
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parents:
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546 |
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|
547 /** |
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548 * Generates code for a switch statement. The generated code is either a |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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parents:
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549 * lookupswitch or tableswitch. The choice of which switch type to generate |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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550 * is made based on the amount of bytes to be generated. A tableswitch |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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parents:
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551 * is usually smaller, unless the cases are sparse. |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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parents:
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552 * |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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parents:
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|
553 * <p>The key value to switch on must already be on the stack when this |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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554 * instruction executes. |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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|
555 * |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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556 * @param cases The values to match on. The array length must be the same |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff
changeset
|
557 * as for locations. |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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parents:
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|
558 * @param locations The locations to branch to for each case. |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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|
559 * The array length must be the same as for cases. |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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560 * @param defaultLocation The location to branch to if the key on |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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changeset
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561 * the stack was not matched. |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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|
562 */ |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff
changeset
|
563 public void switchBranch(int[] cases, |
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Dan Creswell <dan.creswell@gmail.com>
parents:
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|
564 Location[] locations, Location defaultLocation); |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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|
565 |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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|
566 /** |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff
changeset
|
567 * Generates code that performs a subroutine branch to the specified |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff
changeset
|
568 * location. The instruction generated is either jsr or jsr_w. It is most |
3dc0c5604566
Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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changeset
|
569 * often used for implementing a finally block. |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff
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|
570 * |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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571 * @param Location The location to branch to |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff
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|
572 */ |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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parents:
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|
573 public void jsr(Location location); |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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parents:
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|
574 |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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changeset
|
575 /** |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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changeset
|
576 * Generates code that returns from a subroutine invoked by jsr. |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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parents:
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|
577 * |
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parents:
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578 * @param local The local variable reference that contains the return |
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parents:
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579 * address. The local variable must be of an object type. |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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580 */ |
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Dan Creswell <dan.creswell@gmail.com>
parents:
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|
581 public void ret(LocalVariable local); |
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Dan Creswell <dan.creswell@gmail.com>
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|
582 |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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583 // math instructions |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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parents:
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584 |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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parents:
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|
585 /** |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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parents:
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changeset
|
586 * Generates code for either a unary or binary math operation on one |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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parents:
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|
587 * or two values pushed on the stack. |
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parents:
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588 * |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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589 * <p>Pass in an opcode from the the Opcode class. The only valid math |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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parents:
diff
changeset
|
590 * opcodes are: |
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parents:
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|
591 * |
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|
592 * <pre> |
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Dan Creswell <dan.creswell@gmail.com>
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|
593 * IADD, ISUB, IMUL, IDIV, IREM, INEG, IAND, IOR, IXOR, ISHL, ISHR, IUSHR |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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parents:
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594 * LADD, LSUB, LMUL, LDIV, LREM, LNEG, LAND, LOR, LXOR, LSHL, LSHR, LUSHR |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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parents:
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changeset
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595 * FADD, FSUB, FMUL, FDIV, FREM, FNEG |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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changeset
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596 * DADD, DSUB, DMUL, DDIV, DREM, DNEG |
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diff
changeset
|
597 * |
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parents:
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|
598 * LCMP |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff
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599 * FCMPG, FCMPL |
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600 * DCMPG, DCMPL |
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601 * </pre> |
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602 * |
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603 * A not operation (~) is performed by doing a loadConstant with either |
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604 * -1 or -1L followed by math(Opcode.IXOR) or math(Opcode.LXOR). |
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605 * |
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606 * @param opcode An opcode from the Opcode class. |
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607 * @exception IllegalArgumentException When the opcode selected is not |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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608 * a math operation. |
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609 * @see Opcode |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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610 */ |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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611 public void math(byte opcode); |
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612 |
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Dan Creswell <dan.creswell@gmail.com>
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613 // miscellaneous instructions |
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Dan Creswell <dan.creswell@gmail.com>
parents:
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614 |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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615 /** |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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616 * Generates code for an arraylength instruction. The object to get the |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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617 * length from must already be on the stack. |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
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618 */ |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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619 public void arrayLength(); |
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parents:
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620 |
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621 /** |
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Dan Creswell <dan.creswell@gmail.com>
parents:
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622 * Generates code that throws an exception. The object to throw must |
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623 * already be on the stack. |
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Dan Creswell <dan.creswell@gmail.com>
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624 */ |
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625 public void throwObject(); |
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626 |
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627 /** |
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628 * Generates code that performs an object cast operation. The object |
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629 * to check must already be on the stack. |
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parents:
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630 */ |
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631 public void checkCast(TypeDescriptor type); |
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632 |
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633 /** |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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634 * Generates code that performs an instanceof operation. The object to |
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635 * check must already be on the stack. |
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636 */ |
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637 public void instanceOf(TypeDescriptor type); |
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638 |
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639 /** |
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640 * Generates code that increments a local integer variable by a signed |
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parents:
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641 * constant amount. |
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642 */ |
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643 public void integerIncrement(LocalVariable local, int amount); |
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644 |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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645 /** |
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646 * Generates code to enter the monitor on an object loaded on the stack. |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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647 */ |
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648 public void monitorEnter(); |
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649 |
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650 /** |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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651 * Generates code to exit the monitor on an object loaded on the stack. |
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652 */ |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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653 public void monitorExit(); |
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654 |
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655 /** |
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parents:
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changeset
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656 * Generates an instruction that does nothing. (No-OPeration) |
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Dan Creswell <dan.creswell@gmail.com>
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657 */ |
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658 public void nop(); |
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659 |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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660 /** |
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661 * Generates a breakpoint instruction for use in a debugging environment. |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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662 */ |
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663 public void breakpoint(); |
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664 } |