1 /* |
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2 * Copyright (c) 2002, 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. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package com.sun.tools.javah; |
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27 |
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28 import java.io.OutputStream; |
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29 import java.io.PrintWriter; |
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30 import java.util.ArrayList; |
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31 import java.util.HashSet; |
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32 import java.util.List; |
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33 |
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34 import java.util.Set; |
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35 import javax.lang.model.element.Element; |
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36 import javax.lang.model.element.ExecutableElement; |
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37 import javax.lang.model.element.Modifier; |
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38 import javax.lang.model.element.Name; |
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39 import javax.lang.model.element.TypeElement; |
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40 import javax.lang.model.element.VariableElement; |
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41 import javax.lang.model.type.ArrayType; |
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42 import javax.lang.model.type.PrimitiveType; |
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43 import javax.lang.model.type.TypeKind; |
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44 import javax.lang.model.type.TypeMirror; |
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45 import javax.lang.model.type.TypeVisitor; |
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46 import javax.lang.model.util.ElementFilter; |
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47 import javax.lang.model.util.SimpleTypeVisitor9; |
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48 |
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49 import com.sun.tools.javac.util.DefinedBy; |
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50 import com.sun.tools.javac.util.DefinedBy.Api; |
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51 |
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52 /* |
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53 * <p><b>This is NOT part of any supported API. |
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54 * If you write code that depends on this, you do so at your own |
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55 * risk. This code and its internal interfaces are subject to change |
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56 * or deletion without notice.</b></p> |
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57 * |
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58 * @author Sucheta Dambalkar(Revised) |
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59 */ |
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60 public class LLNI extends Gen { |
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61 |
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62 protected final char innerDelim = '$'; /* For inner classes */ |
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63 protected Set<String> doneHandleTypes; |
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64 List<VariableElement> fields; |
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65 List<ExecutableElement> methods; |
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66 private boolean doubleAlign; |
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67 private int padFieldNum = 0; |
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68 |
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69 LLNI(boolean doubleAlign, Util util) { |
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70 super(util); |
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71 this.doubleAlign = doubleAlign; |
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72 } |
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73 |
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74 protected String getIncludes() { |
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75 return ""; |
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76 } |
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77 |
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78 protected void write(OutputStream o, TypeElement clazz) throws Util.Exit { |
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79 try { |
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80 String cname = mangleClassName(clazz.getQualifiedName().toString()); |
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81 PrintWriter pw = wrapWriter(o); |
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82 fields = ElementFilter.fieldsIn(clazz.getEnclosedElements()); |
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83 methods = ElementFilter.methodsIn(clazz.getEnclosedElements()); |
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84 generateDeclsForClass(pw, clazz, cname); |
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85 // FIXME check if errors occurred on the PrintWriter and throw exception if so |
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86 } catch (TypeSignature.SignatureException e) { |
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87 util.error("llni.sigerror", e.getMessage()); |
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88 } |
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89 } |
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90 |
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91 protected void generateDeclsForClass(PrintWriter pw, |
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92 TypeElement clazz, String cname) |
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93 throws TypeSignature.SignatureException, Util.Exit { |
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94 doneHandleTypes = new HashSet<>(); |
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95 /* The following handle types are predefined in "typedefs.h". Suppress |
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96 inclusion in the output by generating them "into the blue" here. */ |
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97 genHandleType(null, "java.lang.Class"); |
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98 genHandleType(null, "java.lang.ClassLoader"); |
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99 genHandleType(null, "java.lang.Object"); |
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100 genHandleType(null, "java.lang.String"); |
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101 genHandleType(null, "java.lang.Thread"); |
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102 genHandleType(null, "java.lang.ThreadGroup"); |
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103 genHandleType(null, "java.lang.Throwable"); |
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104 |
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105 pw.println("/* LLNI Header for class " + clazz.getQualifiedName() + " */" + lineSep); |
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106 pw.println("#ifndef _Included_" + cname); |
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107 pw.println("#define _Included_" + cname); |
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108 pw.println("#include \"typedefs.h\""); |
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109 pw.println("#include \"llni.h\""); |
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110 pw.println("#include \"jni.h\"" + lineSep); |
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111 |
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112 forwardDecls(pw, clazz); |
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113 structSectionForClass(pw, clazz, cname); |
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114 methodSectionForClass(pw, clazz, cname); |
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115 pw.println("#endif"); |
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116 } |
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117 |
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118 protected void genHandleType(PrintWriter pw, String clazzname) { |
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119 String cname = mangleClassName(clazzname); |
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120 if (!doneHandleTypes.contains(cname)) { |
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121 doneHandleTypes.add(cname); |
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122 if (pw != null) { |
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123 pw.println("#ifndef DEFINED_" + cname); |
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124 pw.println(" #define DEFINED_" + cname); |
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125 pw.println(" GEN_HANDLE_TYPES(" + cname + ");"); |
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126 pw.println("#endif" + lineSep); |
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127 } |
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128 } |
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129 } |
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130 |
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131 protected String mangleClassName(String s) { |
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132 return s.replace('.', '_') |
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133 .replace('/', '_') |
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134 .replace(innerDelim, '_'); |
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135 } |
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136 |
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137 protected void forwardDecls(PrintWriter pw, TypeElement clazz) |
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138 throws TypeSignature.SignatureException { |
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139 TypeElement object = elems.getTypeElement("java.lang.Object"); |
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140 if (clazz.equals(object)) |
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141 return; |
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142 |
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143 genHandleType(pw, clazz.getQualifiedName().toString()); |
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144 TypeElement superClass = (TypeElement) (types.asElement(clazz.getSuperclass())); |
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145 |
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146 if (superClass != null) { |
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147 String superClassName = superClass.getQualifiedName().toString(); |
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148 forwardDecls(pw, superClass); |
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149 } |
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150 |
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151 for (VariableElement field: fields) { |
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152 |
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153 if (!field.getModifiers().contains(Modifier.STATIC)) { |
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154 TypeMirror t = types.erasure(field.asType()); |
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155 TypeSignature newTypeSig = new TypeSignature(elems); |
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156 String tname = newTypeSig.qualifiedTypeName(t); |
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157 String sig = newTypeSig.getTypeSignature(tname); |
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158 |
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159 if (sig.charAt(0) != '[') |
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160 forwardDeclsFromSig(pw, sig); |
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161 } |
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162 } |
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163 |
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164 for (ExecutableElement method: methods) { |
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165 |
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166 if (method.getModifiers().contains(Modifier.NATIVE)) { |
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167 TypeMirror retType = types.erasure(method.getReturnType()); |
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168 String typesig = signature(method); |
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169 TypeSignature newTypeSig = new TypeSignature(elems); |
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170 String sig = newTypeSig.getTypeSignature(typesig, retType); |
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171 |
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172 if (sig.charAt(0) != '[') |
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173 forwardDeclsFromSig(pw, sig); |
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174 |
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175 } |
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176 } |
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177 } |
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178 |
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179 protected void forwardDeclsFromSig(PrintWriter pw, String sig) { |
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180 int len = sig.length(); |
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181 int i = sig.charAt(0) == '(' ? 1 : 0; |
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182 |
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183 /* Skip the initial "(". */ |
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184 while (i < len) { |
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185 if (sig.charAt(i) == 'L') { |
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186 int j = i + 1; |
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187 while (sig.charAt(j) != ';') j++; |
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188 genHandleType(pw, sig.substring(i + 1, j)); |
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189 i = j + 1; |
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190 } else { |
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191 i++; |
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192 } |
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193 } |
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194 } |
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195 |
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196 protected void structSectionForClass(PrintWriter pw, |
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197 TypeElement jclazz, String cname) { |
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198 |
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199 String jname = jclazz.getQualifiedName().toString(); |
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200 |
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201 if (cname.equals("java_lang_Object")) { |
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202 pw.println("/* struct java_lang_Object is defined in typedefs.h. */"); |
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203 pw.println(); |
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204 return; |
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205 } |
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206 pw.println("#if !defined(__i386)"); |
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207 pw.println("#pragma pack(4)"); |
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208 pw.println("#endif"); |
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209 pw.println(); |
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210 pw.println("struct " + cname + " {"); |
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211 pw.println(" ObjHeader h;"); |
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212 pw.print(fieldDefs(jclazz, cname)); |
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213 |
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214 if (jname.equals("java.lang.Class")) |
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215 pw.println(" Class *LLNI_mask(cClass);" + |
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216 " /* Fake field; don't access (see oobj.h) */"); |
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217 pw.println("};" + lineSep + lineSep + "#pragma pack()"); |
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218 pw.println(); |
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219 return; |
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220 } |
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221 |
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222 private static class FieldDefsRes { |
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223 public String className; /* Name of the current class. */ |
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224 public FieldDefsRes parent; |
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225 public String s; |
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226 public int byteSize; |
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227 public boolean bottomMost; |
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228 public boolean printedOne = false; |
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229 |
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230 FieldDefsRes(TypeElement clazz, FieldDefsRes parent, boolean bottomMost) { |
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231 this.className = clazz.getQualifiedName().toString(); |
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232 this.parent = parent; |
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233 this.bottomMost = bottomMost; |
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234 int byteSize = 0; |
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235 if (parent == null) this.s = ""; |
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236 else this.s = parent.s; |
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237 } |
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238 } |
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239 |
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240 /* Returns "true" iff added a field. */ |
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241 private boolean doField(FieldDefsRes res, VariableElement field, |
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242 String cname, boolean padWord) { |
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243 |
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244 String fieldDef = addStructMember(field, cname, padWord); |
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245 if (fieldDef != null) { |
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246 if (!res.printedOne) { /* add separator */ |
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247 if (res.bottomMost) { |
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248 if (res.s.length() != 0) |
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249 res.s = res.s + " /* local members: */" + lineSep; |
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250 } else { |
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251 res.s = res.s + " /* inherited members from " + |
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252 res.className + ": */" + lineSep; |
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253 } |
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254 res.printedOne = true; |
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255 } |
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256 res.s = res.s + fieldDef; |
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257 return true; |
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258 } |
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259 |
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260 // Otherwise. |
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261 return false; |
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262 } |
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263 |
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264 private int doTwoWordFields(FieldDefsRes res, TypeElement clazz, |
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265 int offset, String cname, boolean padWord) { |
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266 boolean first = true; |
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267 List<VariableElement> fields = ElementFilter.fieldsIn(clazz.getEnclosedElements()); |
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268 |
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269 for (VariableElement field: fields) { |
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270 TypeKind tk = field.asType().getKind(); |
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271 boolean twoWords = (tk == TypeKind.LONG || tk == TypeKind.DOUBLE); |
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272 if (twoWords && doField(res, field, cname, first && padWord)) { |
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273 offset += 8; first = false; |
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274 } |
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275 } |
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276 return offset; |
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277 } |
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278 |
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279 String fieldDefs(TypeElement clazz, String cname) { |
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280 FieldDefsRes res = fieldDefs(clazz, cname, true); |
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281 return res.s; |
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282 } |
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283 |
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284 FieldDefsRes fieldDefs(TypeElement clazz, String cname, |
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285 boolean bottomMost){ |
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286 FieldDefsRes res; |
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287 int offset; |
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288 boolean didTwoWordFields = false; |
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289 |
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290 TypeElement superclazz = (TypeElement) types.asElement(clazz.getSuperclass()); |
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291 |
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292 if (superclazz != null) { |
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293 String supername = superclazz.getQualifiedName().toString(); |
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294 res = new FieldDefsRes(clazz, |
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295 fieldDefs(superclazz, cname, false), |
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296 bottomMost); |
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297 offset = res.parent.byteSize; |
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298 } else { |
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299 res = new FieldDefsRes(clazz, null, bottomMost); |
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300 offset = 0; |
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301 } |
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302 |
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303 List<VariableElement> fields = ElementFilter.fieldsIn(clazz.getEnclosedElements()); |
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304 |
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305 for (VariableElement field: fields) { |
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306 |
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307 if (doubleAlign && !didTwoWordFields && (offset % 8) == 0) { |
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308 offset = doTwoWordFields(res, clazz, offset, cname, false); |
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309 didTwoWordFields = true; |
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310 } |
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311 |
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312 TypeKind tk = field.asType().getKind(); |
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313 boolean twoWords = (tk == TypeKind.LONG || tk == TypeKind.DOUBLE); |
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314 |
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315 if (!doubleAlign || !twoWords) { |
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316 if (doField(res, field, cname, false)) offset += 4; |
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317 } |
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318 |
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319 } |
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320 |
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321 if (doubleAlign && !didTwoWordFields) { |
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322 if ((offset % 8) != 0) offset += 4; |
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323 offset = doTwoWordFields(res, clazz, offset, cname, true); |
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324 } |
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325 |
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326 res.byteSize = offset; |
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327 return res; |
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328 } |
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329 |
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330 /* OVERRIDE: This method handles instance fields */ |
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331 protected String addStructMember(VariableElement member, String cname, |
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332 boolean padWord) { |
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333 String res = null; |
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334 |
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335 if (member.getModifiers().contains(Modifier.STATIC)) { |
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336 res = addStaticStructMember(member, cname); |
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337 // if (res == null) /* JNI didn't handle it, print comment. */ |
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338 // res = " /* Inaccessible static: " + member + " */" + lineSep; |
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339 } else { |
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340 TypeMirror mt = types.erasure(member.asType()); |
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341 if (padWord) res = " java_int padWord" + padFieldNum++ + ";" + lineSep; |
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342 res = " " + llniType(mt, false, false) + " " + llniFieldName(member); |
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343 if (isLongOrDouble(mt)) res = res + "[2]"; |
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344 res = res + ";" + lineSep; |
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345 } |
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346 return res; |
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347 } |
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348 |
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349 static private final boolean isWindows = |
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350 System.getProperty("os.name").startsWith("Windows"); |
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351 |
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352 /* |
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353 * This method only handles static final fields. |
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354 */ |
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355 protected String addStaticStructMember(VariableElement field, String cname) { |
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356 String res = null; |
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357 Object exp = null; |
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358 |
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359 if (!field.getModifiers().contains(Modifier.STATIC)) |
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360 return res; |
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361 if (!field.getModifiers().contains(Modifier.FINAL)) |
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362 return res; |
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363 |
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364 exp = field.getConstantValue(); |
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365 |
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366 if (exp != null) { |
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367 /* Constant. */ |
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368 |
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369 String cn = cname + "_" + field.getSimpleName(); |
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370 String suffix = null; |
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371 long val = 0; |
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372 /* Can only handle int, long, float, and double fields. */ |
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373 if (exp instanceof Byte |
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374 || exp instanceof Short |
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375 || exp instanceof Integer) { |
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376 suffix = "L"; |
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377 val = ((Number)exp).intValue(); |
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378 } |
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379 else if (exp instanceof Long) { |
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380 // Visual C++ supports the i64 suffix, not LL |
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381 suffix = isWindows ? "i64" : "LL"; |
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382 val = ((Long)exp).longValue(); |
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383 } |
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384 else if (exp instanceof Float) suffix = "f"; |
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385 else if (exp instanceof Double) suffix = ""; |
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386 else if (exp instanceof Character) { |
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387 suffix = "L"; |
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388 Character ch = (Character) exp; |
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389 val = ((int) ch) & 0xffff; |
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390 } |
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391 if (suffix != null) { |
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392 // Some compilers will generate a spurious warning |
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393 // for the integer constants for Integer.MIN_VALUE |
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394 // and Long.MIN_VALUE so we handle them specially. |
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395 if ((suffix.equals("L") && (val == Integer.MIN_VALUE)) || |
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396 (suffix.equals("LL") && (val == Long.MIN_VALUE))) { |
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397 res = " #undef " + cn + lineSep |
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398 + " #define " + cn |
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399 + " (" + (val + 1) + suffix + "-1)" + lineSep; |
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400 } else if (suffix.equals("L") || suffix.endsWith("LL")) { |
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401 res = " #undef " + cn + lineSep |
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402 + " #define " + cn + " " + val + suffix + lineSep; |
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403 } else { |
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404 res = " #undef " + cn + lineSep |
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405 + " #define " + cn + " " + exp + suffix + lineSep; |
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406 } |
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407 } |
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408 } |
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409 return res; |
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410 } |
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411 |
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412 protected void methodSectionForClass(PrintWriter pw, |
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413 TypeElement clazz, String cname) |
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414 throws TypeSignature.SignatureException, Util.Exit { |
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415 String methods = methodDecls(clazz, cname); |
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416 |
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417 if (methods.length() != 0) { |
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418 pw.println("/* Native method declarations: */" + lineSep); |
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419 pw.println("#ifdef __cplusplus"); |
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420 pw.println("extern \"C\" {"); |
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421 pw.println("#endif" + lineSep); |
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422 pw.println(methods); |
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423 pw.println("#ifdef __cplusplus"); |
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424 pw.println("}"); |
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425 pw.println("#endif"); |
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426 } |
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427 } |
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428 |
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429 protected String methodDecls(TypeElement clazz, String cname) |
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430 throws TypeSignature.SignatureException, Util.Exit { |
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431 |
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432 String res = ""; |
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433 for (ExecutableElement method: methods) { |
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434 if (method.getModifiers().contains(Modifier.NATIVE)) |
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435 res = res + methodDecl(method, clazz, cname); |
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436 } |
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437 return res; |
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438 } |
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439 |
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440 protected String methodDecl(ExecutableElement method, |
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441 TypeElement clazz, String cname) |
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442 throws TypeSignature.SignatureException, Util.Exit { |
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443 String res = null; |
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444 |
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445 TypeMirror retType = types.erasure(method.getReturnType()); |
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446 String typesig = signature(method); |
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447 TypeSignature newTypeSig = new TypeSignature(elems); |
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448 String sig = newTypeSig.getTypeSignature(typesig, retType); |
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449 boolean longName = needLongName(method, clazz); |
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450 |
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451 if (sig.charAt(0) != '(') |
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452 util.error("invalid.method.signature", sig); |
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453 |
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454 |
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455 res = "JNIEXPORT " + jniType(retType) + " JNICALL" + lineSep + jniMethodName(method, cname, longName) |
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456 + "(JNIEnv *, " + cRcvrDecl(method, cname); |
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457 List<? extends VariableElement> params = method.getParameters(); |
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458 List<TypeMirror> argTypes = new ArrayList<>(); |
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459 for (VariableElement p: params){ |
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460 argTypes.add(types.erasure(p.asType())); |
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461 } |
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462 |
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463 /* It would have been nice to include the argument names in the |
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464 declaration, but there seems to be a bug in the "BinaryField" |
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465 class, causing the getArguments() method to return "null" for |
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466 most (non-constructor) methods. */ |
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467 for (TypeMirror argType: argTypes) |
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468 res = res + ", " + jniType(argType); |
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469 res = res + ");" + lineSep; |
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470 return res; |
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471 } |
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472 |
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473 protected final boolean needLongName(ExecutableElement method, |
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474 TypeElement clazz) { |
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475 Name methodName = method.getSimpleName(); |
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476 for (ExecutableElement memberMethod: methods) { |
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477 if ((memberMethod != method) && |
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478 memberMethod.getModifiers().contains(Modifier.NATIVE) && |
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479 (methodName.equals(memberMethod.getSimpleName()))) |
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480 return true; |
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481 } |
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482 return false; |
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483 } |
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484 |
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485 protected final String jniMethodName(ExecutableElement method, String cname, |
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486 boolean longName) |
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487 throws TypeSignature.SignatureException { |
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488 String res = "Java_" + cname + "_" + method.getSimpleName(); |
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489 |
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490 if (longName) { |
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491 TypeMirror mType = types.erasure(method.getReturnType()); |
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492 List<? extends VariableElement> params = method.getParameters(); |
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493 List<TypeMirror> argTypes = new ArrayList<>(); |
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494 for (VariableElement param: params) { |
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495 argTypes.add(types.erasure(param.asType())); |
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496 } |
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497 |
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498 res = res + "__"; |
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499 for (TypeMirror t: argTypes) { |
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500 String tname = t.toString(); |
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501 TypeSignature newTypeSig = new TypeSignature(elems); |
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502 String sig = newTypeSig.getTypeSignature(tname); |
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503 res = res + nameToIdentifier(sig); |
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504 } |
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505 } |
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506 return res; |
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507 } |
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508 |
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509 // copied from JNI.java |
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510 protected final String jniType(TypeMirror t) throws Util.Exit { |
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511 TypeElement throwable = elems.getTypeElement("java.lang.Throwable"); |
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512 TypeElement jClass = elems.getTypeElement("java.lang.Class"); |
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513 TypeElement jString = elems.getTypeElement("java.lang.String"); |
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514 Element tclassDoc = types.asElement(t); |
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515 |
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516 switch (t.getKind()) { |
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517 case ARRAY: { |
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518 TypeMirror ct = ((ArrayType) t).getComponentType(); |
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519 switch (ct.getKind()) { |
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520 case BOOLEAN: return "jbooleanArray"; |
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521 case BYTE: return "jbyteArray"; |
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522 case CHAR: return "jcharArray"; |
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523 case SHORT: return "jshortArray"; |
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524 case INT: return "jintArray"; |
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525 case LONG: return "jlongArray"; |
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526 case FLOAT: return "jfloatArray"; |
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527 case DOUBLE: return "jdoubleArray"; |
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528 case ARRAY: |
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529 case DECLARED: return "jobjectArray"; |
|
530 default: throw new Error(ct.toString()); |
|
531 } |
|
532 } |
|
533 |
|
534 case VOID: return "void"; |
|
535 case BOOLEAN: return "jboolean"; |
|
536 case BYTE: return "jbyte"; |
|
537 case CHAR: return "jchar"; |
|
538 case SHORT: return "jshort"; |
|
539 case INT: return "jint"; |
|
540 case LONG: return "jlong"; |
|
541 case FLOAT: return "jfloat"; |
|
542 case DOUBLE: return "jdouble"; |
|
543 |
|
544 case DECLARED: { |
|
545 if (tclassDoc.equals(jString)) |
|
546 return "jstring"; |
|
547 else if (types.isAssignable(t, throwable.asType())) |
|
548 return "jthrowable"; |
|
549 else if (types.isAssignable(t, jClass.asType())) |
|
550 return "jclass"; |
|
551 else |
|
552 return "jobject"; |
|
553 } |
|
554 } |
|
555 |
|
556 util.bug("jni.unknown.type"); |
|
557 return null; /* dead code. */ |
|
558 } |
|
559 |
|
560 protected String llniType(TypeMirror t, boolean handleize, boolean longDoubleOK) { |
|
561 String res = null; |
|
562 |
|
563 switch (t.getKind()) { |
|
564 case ARRAY: { |
|
565 TypeMirror ct = ((ArrayType) t).getComponentType(); |
|
566 switch (ct.getKind()) { |
|
567 case BOOLEAN: res = "IArrayOfBoolean"; break; |
|
568 case BYTE: res = "IArrayOfByte"; break; |
|
569 case CHAR: res = "IArrayOfChar"; break; |
|
570 case SHORT: res = "IArrayOfShort"; break; |
|
571 case INT: res = "IArrayOfInt"; break; |
|
572 case LONG: res = "IArrayOfLong"; break; |
|
573 case FLOAT: res = "IArrayOfFloat"; break; |
|
574 case DOUBLE: res = "IArrayOfDouble"; break; |
|
575 case ARRAY: |
|
576 case DECLARED: res = "IArrayOfRef"; break; |
|
577 default: throw new Error(ct.getKind() + " " + ct); |
|
578 } |
|
579 if (!handleize) res = "DEREFERENCED_" + res; |
|
580 break; |
|
581 } |
|
582 |
|
583 case VOID: |
|
584 res = "void"; |
|
585 break; |
|
586 |
|
587 case BOOLEAN: |
|
588 case BYTE: |
|
589 case CHAR: |
|
590 case SHORT: |
|
591 case INT: |
|
592 res = "java_int" ; |
|
593 break; |
|
594 |
|
595 case LONG: |
|
596 res = longDoubleOK ? "java_long" : "val32 /* java_long */"; |
|
597 break; |
|
598 |
|
599 case FLOAT: |
|
600 res = "java_float"; |
|
601 break; |
|
602 |
|
603 case DOUBLE: |
|
604 res = longDoubleOK ? "java_double" : "val32 /* java_double */"; |
|
605 break; |
|
606 |
|
607 case DECLARED: |
|
608 TypeElement e = (TypeElement) types.asElement(t); |
|
609 res = "I" + mangleClassName(e.getQualifiedName().toString()); |
|
610 if (!handleize) res = "DEREFERENCED_" + res; |
|
611 break; |
|
612 |
|
613 default: |
|
614 throw new Error(t.getKind() + " " + t); // FIXME |
|
615 } |
|
616 |
|
617 return res; |
|
618 } |
|
619 |
|
620 protected final String cRcvrDecl(Element field, String cname) { |
|
621 return (field.getModifiers().contains(Modifier.STATIC) ? "jclass" : "jobject"); |
|
622 } |
|
623 |
|
624 protected String maskName(String s) { |
|
625 return "LLNI_mask(" + s + ")"; |
|
626 } |
|
627 |
|
628 protected String llniFieldName(VariableElement field) { |
|
629 return maskName(field.getSimpleName().toString()); |
|
630 } |
|
631 |
|
632 protected final boolean isLongOrDouble(TypeMirror t) { |
|
633 TypeVisitor<Boolean,Void> v = new SimpleTypeVisitor9<Boolean,Void>() { |
|
634 @DefinedBy(Api.LANGUAGE_MODEL) |
|
635 public Boolean defaultAction(TypeMirror t, Void p){ |
|
636 return false; |
|
637 } |
|
638 @DefinedBy(Api.LANGUAGE_MODEL) |
|
639 public Boolean visitArray(ArrayType t, Void p) { |
|
640 return visit(t.getComponentType(), p); |
|
641 } |
|
642 @DefinedBy(Api.LANGUAGE_MODEL) |
|
643 public Boolean visitPrimitive(PrimitiveType t, Void p) { |
|
644 TypeKind tk = t.getKind(); |
|
645 return (tk == TypeKind.LONG || tk == TypeKind.DOUBLE); |
|
646 } |
|
647 }; |
|
648 return v.visit(t, null); |
|
649 } |
|
650 |
|
651 /* Do unicode to ansi C identifier conversion. |
|
652 %%% This may not be right, but should be called more often. */ |
|
653 protected final String nameToIdentifier(String name) { |
|
654 int len = name.length(); |
|
655 StringBuilder buf = new StringBuilder(len); |
|
656 for (int i = 0; i < len; i++) { |
|
657 char c = name.charAt(i); |
|
658 if (isASCIILetterOrDigit(c)) |
|
659 buf.append(c); |
|
660 else if (c == '/') |
|
661 buf.append('_'); |
|
662 else if (c == '.') |
|
663 buf.append('_'); |
|
664 else if (c == '_') |
|
665 buf.append("_1"); |
|
666 else if (c == ';') |
|
667 buf.append("_2"); |
|
668 else if (c == '[') |
|
669 buf.append("_3"); |
|
670 else |
|
671 buf.append("_0" + ((int)c)); |
|
672 } |
|
673 return new String(buf); |
|
674 } |
|
675 |
|
676 protected final boolean isASCIILetterOrDigit(char c) { |
|
677 if (((c >= 'A') && (c <= 'Z')) || |
|
678 ((c >= 'a') && (c <= 'z')) || |
|
679 ((c >= '0') && (c <= '9'))) |
|
680 return true; |
|
681 else |
|
682 return false; |
|
683 } |
|
684 } |
|
685 |
|