1 /* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 import java.util.*; 18 19 public class CFunc { 20 21 String original; 22 23 CType ftype; 24 String fname; 25 26 List<String> argNames = new ArrayList<String>(); 27 List<CType> argTypes = new ArrayList<CType>(); 28 29 boolean hasPointerArg = false; 30 boolean hasTypedPointerArg = false; 31 32 public CFunc(String original) { 33 this.original = original; 34 } 35 36 public String getOriginal() { 37 return original; 38 } 39 40 public void setName(String fname) { 41 this.fname = fname; 42 } 43 44 public String getName() { 45 return fname; 46 } 47 48 public void setType(CType ftype) { 49 this.ftype = ftype; 50 } 51 52 public CType getType() { 53 return ftype; 54 } 55 56 public void addArgument(String argName, CType argType) { 57 argNames.add(argName); 58 argTypes.add(argType); 59 60 if (argType.isPointer()) { 61 hasPointerArg = true; 62 } 63 if (argType.isTypedPointer()) { 64 hasTypedPointerArg = true; 65 } 66 } 67 68 public int getNumArgs() { 69 return argNames.size(); 70 } 71 72 public int getArgIndex(String name) { 73 int len = argNames.size(); 74 for (int i = 0; i < len; i++) { 75 if (name.equals(argNames.get(i))) { 76 return i; 77 } 78 } 79 return -1; 80 } 81 82 public String getArgName(int index) { 83 return argNames.get(index); 84 } 85 86 public CType getArgType(int index) { 87 return argTypes.get(index); 88 } 89 90 public boolean hasPointerArg() { 91 return hasPointerArg; 92 } 93 94 public boolean hasTypedPointerArg() { 95 return hasTypedPointerArg; 96 } 97 98 @Override 99 public String toString() { 100 String s = "Function " + fname + " returns " + ftype + ": "; 101 for (int i = 0; i < argNames.size(); i++) { 102 if (i > 0) { 103 s += ", "; 104 } 105 s += argTypes.get(i) + " " + argNames.get(i); 106 } 107 return s; 108 } 109 110 public static CFunc parseCFunc(String s) { 111 CFunc cfunc = new CFunc(s); 112 String[] tokens = s.split("\\s"); 113 114 int i = 0; 115 CType ftype = new CType(); 116 String ftypeName = tokens[i++]; 117 if (ftypeName.equals("const")) { 118 ftype.setIsConst(true); 119 ftypeName = tokens[i++]; 120 } 121 ftype.setBaseType(ftypeName); 122 123 String fname = tokens[i++]; 124 if (fname.equals("*")) { 125 ftype.setIsPointer(true); 126 fname = tokens[i++]; 127 } 128 129 cfunc.setName(fname); 130 cfunc.setType(ftype); 131 132 while (i < tokens.length) { 133 String tok = tokens[i++]; 134 135 if (tok.equals("(")) { 136 continue; 137 } 138 if (tok.equals(")")) { 139 break; 140 } 141 142 CType argType = new CType(); 143 144 String argTypeName = tok; 145 String argName = ""; 146 147 if (argTypeName.equals("const")) { 148 argType.setIsConst(true); 149 argTypeName = tokens[i++]; 150 } 151 argType.setBaseType(argTypeName); 152 153 if (argTypeName.equals("void")) { 154 break; 155 } 156 157 argName = tokens[i++]; 158 if (argName.startsWith("*")) { 159 argType.setIsPointer(true); 160 argName = argName.substring(1, argName.length()); 161 } 162 if (argName.endsWith(",")) { 163 argName = argName.substring(0, argName.length() - 1); 164 } 165 166 cfunc.addArgument(argName, argType); 167 } 168 169 return cfunc; 170 } 171 } 172
