src/share/vm/runtime/fieldType.hpp

Tue, 23 Nov 2010 13:22:55 -0800

author
stefank
date
Tue, 23 Nov 2010 13:22:55 -0800
changeset 2314
f95d63e2154a
parent 1907
c18cbe5936b8
child 2497
3582bf76420e
permissions
-rw-r--r--

6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg

     1 /*
     2  * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.
     8  *
     9  * This code is distributed in the hope that it will be useful, but WITHOUT
    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    12  * version 2 for more details (a copy is included in the LICENSE file that
    13  * accompanied this code).
    14  *
    15  * You should have received a copy of the GNU General Public License version
    16  * 2 along with this work; if not, write to the Free Software Foundation,
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    18  *
    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    20  * or visit www.oracle.com if you need additional information or have any
    21  * questions.
    22  *
    23  */
    25 #ifndef SHARE_VM_RUNTIME_FIELDTYPE_HPP
    26 #define SHARE_VM_RUNTIME_FIELDTYPE_HPP
    28 #include "memory/allocation.hpp"
    29 #include "oops/symbolOop.hpp"
    31 // Note: FieldType should be based on the SignatureIterator (or vice versa).
    32 //       In any case, this structure should be re-thought at some point.
    34 // A FieldType is used to determine the type of a field from a signature string.
    36 class FieldType: public AllStatic {
    37  private:
    38   static void skip_optional_size(symbolOop signature, int* index);
    39   static bool is_valid_array_signature(symbolOop signature);
    40  public:
    42   // Return basic type
    43   static BasicType basic_type(symbolOop signature);
    45   // Testing
    46   static bool is_array(symbolOop signature) { return signature->utf8_length() > 1 && signature->byte_at(0) == '[' && is_valid_array_signature(signature); }
    48   static bool is_obj(symbolOop signature) {
    49      int sig_length = signature->utf8_length();
    50      // Must start with 'L' and end with ';'
    51      return (sig_length >= 2 &&
    52              (signature->byte_at(0) == 'L') &&
    53              (signature->byte_at(sig_length - 1) == ';'));
    54   }
    56   // Parse field and extract array information. Works for T_ARRAY only.
    57   static BasicType get_array_info(symbolOop signature, jint* dimension, symbolOop *object_key, TRAPS);
    58 };
    60 #endif // SHARE_VM_RUNTIME_FIELDTYPE_HPP

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