annotate src/share/vm/runtime/fieldType.hpp @ 1972:f95d63e2154a

6989984: Use standard include model for Hospot Summary: Replaced MakeDeps and the includeDB files with more standardized solutions. Reviewed-by: coleenp, kvn, kamg
author stefank
date Tue, 23 Nov 2010 13:22:55 -0800
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1 /*
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2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #ifndef SHARE_VM_RUNTIME_FIELDTYPE_HPP
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26 #define SHARE_VM_RUNTIME_FIELDTYPE_HPP
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27
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28 #include "memory/allocation.hpp"
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29 #include "oops/symbolOop.hpp"
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30
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31 // Note: FieldType should be based on the SignatureIterator (or vice versa).
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32 // In any case, this structure should be re-thought at some point.
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33
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34 // A FieldType is used to determine the type of a field from a signature string.
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35
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36 class FieldType: public AllStatic {
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37 private:
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38 static void skip_optional_size(symbolOop signature, int* index);
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39 static bool is_valid_array_signature(symbolOop signature);
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40 public:
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41
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42 // Return basic type
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43 static BasicType basic_type(symbolOop signature);
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44
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45 // Testing
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46 static bool is_array(symbolOop signature) { return signature->utf8_length() > 1 && signature->byte_at(0) == '[' && is_valid_array_signature(signature); }
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47
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48 static bool is_obj(symbolOop signature) {
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49 int sig_length = signature->utf8_length();
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50 // Must start with 'L' and end with ';'
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51 return (sig_length >= 2 &&
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52 (signature->byte_at(0) == 'L') &&
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53 (signature->byte_at(sig_length - 1) == ';'));
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54 }
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55
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56 // Parse field and extract array information. Works for T_ARRAY only.
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57 static BasicType get_array_info(symbolOop signature, jint* dimension, symbolOop *object_key, TRAPS);
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58 };
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59
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60 #endif // SHARE_VM_RUNTIME_FIELDTYPE_HPP