| /* |
| * Copyright 1997-2002 Sun Microsystems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| * |
| */ |
| |
| // Note: FieldType should be based on the SignatureIterator (or vice versa). |
| // In any case, this structure should be re-thought at some point. |
| |
| // A FieldType is used to determine the type of a field from a signature string. |
| |
| class FieldType: public AllStatic { |
| private: |
| static void skip_optional_size(symbolOop signature, int* index); |
| static bool is_valid_array_signature(symbolOop signature); |
| public: |
| |
| // Return basic type |
| static BasicType basic_type(symbolOop signature); |
| |
| // Testing |
| static bool is_array(symbolOop signature) { return signature->utf8_length() > 1 && signature->byte_at(0) == '[' && is_valid_array_signature(signature); } |
| |
| static bool is_obj(symbolOop signature) { |
| int sig_length = signature->utf8_length(); |
| // Must start with 'L' and end with ';' |
| return (sig_length >= 2 && |
| (signature->byte_at(0) == 'L') && |
| (signature->byte_at(sig_length - 1) == ';')); |
| } |
| |
| // Parse field and extract array information. Works for T_ARRAY only. |
| static BasicType get_array_info(symbolOop signature, jint* dimension, symbolOop *object_key, TRAPS); |
| }; |