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annotate src/share/vm/ci/ciArray.hpp @ 17524:89152779163c

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Merge with jdk8-b132
author Gilles Duboscq <duboscq@ssw.jku.at>
date Wed, 15 Oct 2014 11:59:32 +0200
parents 4ca6dc0799b6
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1 /*
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Gilles Duboscq <duboscq@ssw.jku.at>
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2 * Copyright (c) 1999, 2013, 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_CI_CIARRAY_HPP
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26 #define SHARE_VM_CI_CIARRAY_HPP
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27
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28 #include "ci/ciArrayKlass.hpp"
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29 #include "ci/ciConstant.hpp"
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30 #include "ci/ciObject.hpp"
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31 #include "oops/arrayOop.hpp"
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32 #include "oops/objArrayOop.hpp"
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33 #include "oops/typeArrayOop.hpp"
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34
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35 // ciArray
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36 //
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37 // This class represents an arrayOop in the HotSpot virtual
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38 // machine.
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39 class ciArray : public ciObject {
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40 private:
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41 int _length;
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42
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43 protected:
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44 ciArray( arrayHandle h_a) : ciObject(h_a), _length(h_a()->length()) {}
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45 ciArray( objArrayHandle h_a) : ciObject(h_a), _length(h_a()->length()) {}
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46 ciArray(typeArrayHandle h_a) : ciObject(h_a), _length(h_a()->length()) {}
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47
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48 ciArray(ciKlass* klass, int len) : ciObject(klass), _length(len) {}
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49
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50 arrayOop get_arrayOop() const { return (arrayOop)get_oop(); }
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51
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52 const char* type_string() { return "ciArray"; }
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53
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54 void print_impl(outputStream* st);
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55
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56 ciConstant element_value_impl(BasicType elembt, arrayOop ary, int index);
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57
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58 public:
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59 int length() { return _length; }
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60
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61 // Convenience routines.
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62 ciArrayKlass* array_type() { return klass()->as_array_klass(); }
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63 ciType* element_type() { return array_type()->element_type(); }
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64 BasicType element_basic_type() { return element_type()->basic_type(); }
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65
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66 // Current value of an element.
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67 // Returns T_ILLEGAL if there is no element at the given index.
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68 ciConstant element_value(int index);
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69
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70 // Current value of an element at the specified offset.
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71 // Returns T_ILLEGAL if there is no element at the given offset.
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72 ciConstant element_value_by_offset(intptr_t element_offset);
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73
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74 // What kind of ciObject is this?
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75 bool is_array() { return true; }
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76 bool is_java_object() { return true; }
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77 };
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78
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79 #endif // SHARE_VM_CI_CIARRAY_HPP