Mercurial > jdk8-mips64-public > hotspot / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/share/vm/runtime/fieldType.hpp	Sat Dec 01 00:00:00 2007 +0000
     1.3 @@ -0,0 +1,52 @@
     1.4 +/*
     1.5 + * Copyright 1997-2002 Sun Microsystems, Inc.  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.
    1.11 + *
    1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.15 + * version 2 for more details (a copy is included in the LICENSE file that
    1.16 + * accompanied this code).
    1.17 + *
    1.18 + * You should have received a copy of the GNU General Public License version
    1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.21 + *
    1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
    1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or
    1.24 + * have any questions.
    1.25 + *
    1.26 + */
    1.27 +
    1.28 +// Note: FieldType should be based on the SignatureIterator (or vice versa).
    1.29 +//       In any case, this structure should be re-thought at some point.
    1.30 +
    1.31 +// A FieldType is used to determine the type of a field from a signature string.
    1.32 +
    1.33 +class FieldType: public AllStatic {
    1.34 + private:
    1.35 +  static void skip_optional_size(symbolOop signature, int* index);
    1.36 +  static bool is_valid_array_signature(symbolOop signature);
    1.37 + public:
    1.38 +
    1.39 +  // Return basic type
    1.40 +  static BasicType basic_type(symbolOop signature);
    1.41 +
    1.42 +  // Testing
    1.43 +  static bool is_array(symbolOop signature) { return signature->utf8_length() > 1 && signature->byte_at(0) == '[' && is_valid_array_signature(signature); }
    1.44 +
    1.45 +  static bool is_obj(symbolOop signature) {
    1.46 +     int sig_length = signature->utf8_length();
    1.47 +     // Must start with 'L' and end with ';'
    1.48 +     return (sig_length >= 2 &&
    1.49 +             (signature->byte_at(0) == 'L') &&
    1.50 +             (signature->byte_at(sig_length - 1) == ';'));
    1.51 +  }
    1.52 +
    1.53 +  // Parse field and extract array information. Works for T_ARRAY only.
    1.54 +  static BasicType get_array_info(symbolOop signature, jint* dimension, symbolOop *object_key, TRAPS);
    1.55 +};