javap/src/main/java/org/apidesign/javap/TypeArray.java
branchemul
changeset 695 dbcd1a21f3f8
parent 307 eaf4e8387065
     1.1 --- a/javap/src/main/java/org/apidesign/javap/TypeArray.java	Wed Dec 12 11:04:02 2012 +0100
     1.2 +++ b/javap/src/main/java/org/apidesign/javap/TypeArray.java	Thu Feb 07 13:07:22 2013 +0100
     1.3 @@ -1,186 +1,186 @@
     1.4 -/*
     1.5 - * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
     1.6 - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 - *
     1.8 - * This code is free software; you can redistribute it and/or modify it
     1.9 - * under the terms of the GNU General Public License version 2 only, as
    1.10 - * published by the Free Software Foundation.  Oracle designates this
    1.11 - * particular file as subject to the "Classpath" exception as provided
    1.12 - * by Oracle in the LICENSE file that accompanied this code.
    1.13 - *
    1.14 - * This code is distributed in the hope that it will be useful, but WITHOUT
    1.15 - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.16 - * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.17 - * version 2 for more details (a copy is included in the LICENSE file that
    1.18 - * accompanied this code).
    1.19 - *
    1.20 - * You should have received a copy of the GNU General Public License version
    1.21 - * 2 along with this work; if not, write to the Free Software Foundation,
    1.22 - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.23 - *
    1.24 - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    1.25 - * or visit www.oracle.com if you need additional information or have any
    1.26 - * questions.
    1.27 - */
    1.28 -
    1.29 -package org.apidesign.javap;
    1.30 -
    1.31 -import static org.apidesign.javap.RuntimeConstants.ITEM_Bogus;
    1.32 -import static org.apidesign.javap.RuntimeConstants.ITEM_Integer;
    1.33 -import static org.apidesign.javap.RuntimeConstants.ITEM_Float;
    1.34 -import static org.apidesign.javap.RuntimeConstants.ITEM_Double;
    1.35 -import static org.apidesign.javap.RuntimeConstants.ITEM_Long;
    1.36 -import static org.apidesign.javap.RuntimeConstants.ITEM_Null;
    1.37 -import static org.apidesign.javap.RuntimeConstants.ITEM_InitObject;
    1.38 -import static org.apidesign.javap.RuntimeConstants.ITEM_Object;
    1.39 -import static org.apidesign.javap.RuntimeConstants.ITEM_NewObject;
    1.40 -
    1.41 -public final class TypeArray {
    1.42 -    private static final int CAPACITY_INCREMENT = 16;
    1.43 -
    1.44 -    private int[] types;
    1.45 -    private int size;
    1.46 -
    1.47 -    public TypeArray() {
    1.48 -    }
    1.49 -    
    1.50 -    public TypeArray(final TypeArray initialTypes) {
    1.51 -        setAll(initialTypes);
    1.52 -    }
    1.53 -
    1.54 -    public void add(final int newType) {
    1.55 -        ensureCapacity(size + 1);
    1.56 -        types[size++] = newType;
    1.57 -    }
    1.58 -
    1.59 -    public void addAll(final TypeArray newTypes) {
    1.60 -        addAll(newTypes.types, 0, newTypes.size);
    1.61 -    }
    1.62 -
    1.63 -    public void addAll(final int[] newTypes) {
    1.64 -        addAll(newTypes, 0, newTypes.length);
    1.65 -    }
    1.66 -
    1.67 -    public void addAll(final int[] newTypes,
    1.68 -                       final int offset,
    1.69 -                       final int count) {
    1.70 -        if (count > 0) {
    1.71 -            ensureCapacity(size + count);
    1.72 -            arraycopy(newTypes, offset, types, size, count);
    1.73 -            size += count;
    1.74 -        }
    1.75 -    }
    1.76 -
    1.77 -    public void set(final int index, final int newType) {
    1.78 -        types[index] = newType;
    1.79 -    }
    1.80 -
    1.81 -    public void setAll(final TypeArray newTypes) {
    1.82 -        setAll(newTypes.types, 0, newTypes.size);
    1.83 -    }
    1.84 -
    1.85 -    public void setAll(final int[] newTypes) {
    1.86 -        setAll(newTypes, 0, newTypes.length);
    1.87 -    }
    1.88 -
    1.89 -    public void setAll(final int[] newTypes,
    1.90 -                       final int offset,
    1.91 -                       final int count) {
    1.92 -        if (count > 0) {
    1.93 -            ensureCapacity(count);
    1.94 -            arraycopy(newTypes, offset, types, 0, count);
    1.95 -            size = count;
    1.96 -        } else {
    1.97 -            clear();
    1.98 -        }
    1.99 -    }
   1.100 -
   1.101 -    public void setSize(final int newSize) {
   1.102 -        if (size != newSize) {
   1.103 -            ensureCapacity(newSize);
   1.104 -
   1.105 -            for (int i = size; i < newSize; ++i) {
   1.106 -                types[i] = 0;
   1.107 -            }
   1.108 -            size = newSize;
   1.109 -        }
   1.110 -    }
   1.111 -
   1.112 -    public void clear() {
   1.113 -        size = 0;
   1.114 -    }
   1.115 -
   1.116 -    public int getSize() {
   1.117 -        return size;
   1.118 -    }
   1.119 -
   1.120 -    public int get(final int index) {
   1.121 -        return types[index];
   1.122 -    }
   1.123 -
   1.124 -    public static String typeString(final int type) {
   1.125 -        switch (type & 0xff) {
   1.126 -            case ITEM_Bogus:
   1.127 -                return "_top_";
   1.128 -            case ITEM_Integer:
   1.129 -                return "_int_";
   1.130 -            case ITEM_Float:
   1.131 -                return "_float_";
   1.132 -            case ITEM_Double:
   1.133 -                return "_double_";
   1.134 -            case ITEM_Long:
   1.135 -                return "_long_";
   1.136 -            case ITEM_Null:
   1.137 -                return "_null_";
   1.138 -            case ITEM_InitObject: // UninitializedThis
   1.139 -                return "_init_";
   1.140 -            case ITEM_Object:
   1.141 -                return "_object_";
   1.142 -            case ITEM_NewObject: // Uninitialized
   1.143 -                return "_new_";
   1.144 -            default:
   1.145 -                throw new IllegalArgumentException("Unknown type");
   1.146 -        }
   1.147 -    }
   1.148 -
   1.149 -    @Override
   1.150 -    public String toString() {
   1.151 -        final StringBuilder sb = new StringBuilder("[");
   1.152 -        if (size > 0) {
   1.153 -            sb.append(typeString(types[0]));
   1.154 -            for (int i = 1; i < size; ++i) {
   1.155 -                sb.append(", ");
   1.156 -                sb.append(typeString(types[i]));
   1.157 -            }
   1.158 -        }
   1.159 -
   1.160 -        return sb.append(']').toString();
   1.161 -    }
   1.162 -
   1.163 -    private void ensureCapacity(final int minCapacity) {
   1.164 -        if ((minCapacity == 0)
   1.165 -                || (types != null) && (minCapacity <= types.length)) {
   1.166 -            return;
   1.167 -        }
   1.168 -
   1.169 -        final int newCapacity =
   1.170 -                ((minCapacity + CAPACITY_INCREMENT - 1) / CAPACITY_INCREMENT)
   1.171 -                    * CAPACITY_INCREMENT;
   1.172 -        final int[] newTypes = new int[newCapacity];
   1.173 -
   1.174 -        if (size > 0) {
   1.175 -            arraycopy(types, 0, newTypes, 0, size);
   1.176 -        }
   1.177 -
   1.178 -        types = newTypes;
   1.179 -    }
   1.180 -
   1.181 -    // no System.arraycopy
   1.182 -    private void arraycopy(final int[] src, final int srcPos,
   1.183 -                           final int[] dest, final int destPos,
   1.184 -                           final int length) {
   1.185 -        for (int i = 0; i < length; ++i) {
   1.186 -            dest[destPos + i] = src[srcPos + i];
   1.187 -        }
   1.188 -    }
   1.189 -}
   1.190 +/*
   1.191 + * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
   1.192 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   1.193 + *
   1.194 + * This code is free software; you can redistribute it and/or modify it
   1.195 + * under the terms of the GNU General Public License version 2 only, as
   1.196 + * published by the Free Software Foundation.  Oracle designates this
   1.197 + * particular file as subject to the "Classpath" exception as provided
   1.198 + * by Oracle in the LICENSE file that accompanied this code.
   1.199 + *
   1.200 + * This code is distributed in the hope that it will be useful, but WITHOUT
   1.201 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   1.202 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   1.203 + * version 2 for more details (a copy is included in the LICENSE file that
   1.204 + * accompanied this code).
   1.205 + *
   1.206 + * You should have received a copy of the GNU General Public License version
   1.207 + * 2 along with this work; if not, write to the Free Software Foundation,
   1.208 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   1.209 + *
   1.210 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   1.211 + * or visit www.oracle.com if you need additional information or have any
   1.212 + * questions.
   1.213 + */
   1.214 +
   1.215 +package org.apidesign.javap;
   1.216 +
   1.217 +import static org.apidesign.javap.RuntimeConstants.ITEM_Bogus;
   1.218 +import static org.apidesign.javap.RuntimeConstants.ITEM_Integer;
   1.219 +import static org.apidesign.javap.RuntimeConstants.ITEM_Float;
   1.220 +import static org.apidesign.javap.RuntimeConstants.ITEM_Double;
   1.221 +import static org.apidesign.javap.RuntimeConstants.ITEM_Long;
   1.222 +import static org.apidesign.javap.RuntimeConstants.ITEM_Null;
   1.223 +import static org.apidesign.javap.RuntimeConstants.ITEM_InitObject;
   1.224 +import static org.apidesign.javap.RuntimeConstants.ITEM_Object;
   1.225 +import static org.apidesign.javap.RuntimeConstants.ITEM_NewObject;
   1.226 +
   1.227 +public final class TypeArray {
   1.228 +    private static final int CAPACITY_INCREMENT = 16;
   1.229 +
   1.230 +    private int[] types;
   1.231 +    private int size;
   1.232 +
   1.233 +    public TypeArray() {
   1.234 +    }
   1.235 +    
   1.236 +    public TypeArray(final TypeArray initialTypes) {
   1.237 +        setAll(initialTypes);
   1.238 +    }
   1.239 +
   1.240 +    public void add(final int newType) {
   1.241 +        ensureCapacity(size + 1);
   1.242 +        types[size++] = newType;
   1.243 +    }
   1.244 +
   1.245 +    public void addAll(final TypeArray newTypes) {
   1.246 +        addAll(newTypes.types, 0, newTypes.size);
   1.247 +    }
   1.248 +
   1.249 +    public void addAll(final int[] newTypes) {
   1.250 +        addAll(newTypes, 0, newTypes.length);
   1.251 +    }
   1.252 +
   1.253 +    public void addAll(final int[] newTypes,
   1.254 +                       final int offset,
   1.255 +                       final int count) {
   1.256 +        if (count > 0) {
   1.257 +            ensureCapacity(size + count);
   1.258 +            arraycopy(newTypes, offset, types, size, count);
   1.259 +            size += count;
   1.260 +        }
   1.261 +    }
   1.262 +
   1.263 +    public void set(final int index, final int newType) {
   1.264 +        types[index] = newType;
   1.265 +    }
   1.266 +
   1.267 +    public void setAll(final TypeArray newTypes) {
   1.268 +        setAll(newTypes.types, 0, newTypes.size);
   1.269 +    }
   1.270 +
   1.271 +    public void setAll(final int[] newTypes) {
   1.272 +        setAll(newTypes, 0, newTypes.length);
   1.273 +    }
   1.274 +
   1.275 +    public void setAll(final int[] newTypes,
   1.276 +                       final int offset,
   1.277 +                       final int count) {
   1.278 +        if (count > 0) {
   1.279 +            ensureCapacity(count);
   1.280 +            arraycopy(newTypes, offset, types, 0, count);
   1.281 +            size = count;
   1.282 +        } else {
   1.283 +            clear();
   1.284 +        }
   1.285 +    }
   1.286 +
   1.287 +    public void setSize(final int newSize) {
   1.288 +        if (size != newSize) {
   1.289 +            ensureCapacity(newSize);
   1.290 +
   1.291 +            for (int i = size; i < newSize; ++i) {
   1.292 +                types[i] = 0;
   1.293 +            }
   1.294 +            size = newSize;
   1.295 +        }
   1.296 +    }
   1.297 +
   1.298 +    public void clear() {
   1.299 +        size = 0;
   1.300 +    }
   1.301 +
   1.302 +    public int getSize() {
   1.303 +        return size;
   1.304 +    }
   1.305 +
   1.306 +    public int get(final int index) {
   1.307 +        return types[index];
   1.308 +    }
   1.309 +
   1.310 +    public static String typeString(final int type) {
   1.311 +        switch (type & 0xff) {
   1.312 +            case ITEM_Bogus:
   1.313 +                return "_top_";
   1.314 +            case ITEM_Integer:
   1.315 +                return "_int_";
   1.316 +            case ITEM_Float:
   1.317 +                return "_float_";
   1.318 +            case ITEM_Double:
   1.319 +                return "_double_";
   1.320 +            case ITEM_Long:
   1.321 +                return "_long_";
   1.322 +            case ITEM_Null:
   1.323 +                return "_null_";
   1.324 +            case ITEM_InitObject: // UninitializedThis
   1.325 +                return "_init_";
   1.326 +            case ITEM_Object:
   1.327 +                return "_object_";
   1.328 +            case ITEM_NewObject: // Uninitialized
   1.329 +                return "_new_";
   1.330 +            default:
   1.331 +                throw new IllegalArgumentException("Unknown type");
   1.332 +        }
   1.333 +    }
   1.334 +
   1.335 +    @Override
   1.336 +    public String toString() {
   1.337 +        final StringBuilder sb = new StringBuilder("[");
   1.338 +        if (size > 0) {
   1.339 +            sb.append(typeString(types[0]));
   1.340 +            for (int i = 1; i < size; ++i) {
   1.341 +                sb.append(", ");
   1.342 +                sb.append(typeString(types[i]));
   1.343 +            }
   1.344 +        }
   1.345 +
   1.346 +        return sb.append(']').toString();
   1.347 +    }
   1.348 +
   1.349 +    private void ensureCapacity(final int minCapacity) {
   1.350 +        if ((minCapacity == 0)
   1.351 +                || (types != null) && (minCapacity <= types.length)) {
   1.352 +            return;
   1.353 +        }
   1.354 +
   1.355 +        final int newCapacity =
   1.356 +                ((minCapacity + CAPACITY_INCREMENT - 1) / CAPACITY_INCREMENT)
   1.357 +                    * CAPACITY_INCREMENT;
   1.358 +        final int[] newTypes = new int[newCapacity];
   1.359 +
   1.360 +        if (size > 0) {
   1.361 +            arraycopy(types, 0, newTypes, 0, size);
   1.362 +        }
   1.363 +
   1.364 +        types = newTypes;
   1.365 +    }
   1.366 +
   1.367 +    // no System.arraycopy
   1.368 +    private void arraycopy(final int[] src, final int srcPos,
   1.369 +                           final int[] dest, final int destPos,
   1.370 +                           final int length) {
   1.371 +        for (int i = 0; i < length; ++i) {
   1.372 +            dest[destPos + i] = src[srcPos + i];
   1.373 +        }
   1.374 +    }
   1.375 +}