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src/share/vm/ci/ciArray.hpp@ac27a9c85bea (annotated)
src/share/vm/ci/ciArray.hpp
Thu, 24 May 2018 18:41:44 +0800
- author
- aoqi
- date
- Thu, 24 May 2018 18:41:44 +0800
- changeset 8856
- ac27a9c85bea
- parent 6876
- 710a3c8b516e
- permissions
- -rw-r--r--
Merge
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | * |
| aoqi@0 | 23 | */ |
| aoqi@0 | 24 | |
| aoqi@0 | 25 | #ifndef SHARE_VM_CI_CIARRAY_HPP |
| aoqi@0 | 26 | #define SHARE_VM_CI_CIARRAY_HPP |
| aoqi@0 | 27 | |
| aoqi@0 | 28 | #include "ci/ciArrayKlass.hpp" |
| aoqi@0 | 29 | #include "ci/ciConstant.hpp" |
| aoqi@0 | 30 | #include "ci/ciObject.hpp" |
| aoqi@0 | 31 | #include "oops/arrayOop.hpp" |
| aoqi@0 | 32 | #include "oops/objArrayOop.hpp" |
| aoqi@0 | 33 | #include "oops/typeArrayOop.hpp" |
| aoqi@0 | 34 | |
| aoqi@0 | 35 | // ciArray |
| aoqi@0 | 36 | // |
| aoqi@0 | 37 | // This class represents an arrayOop in the HotSpot virtual |
| aoqi@0 | 38 | // machine. |
| aoqi@0 | 39 | class ciArray : public ciObject { |
| aoqi@0 | 40 | private: |
| aoqi@0 | 41 | int _length; |
| aoqi@0 | 42 | |
| aoqi@0 | 43 | protected: |
| aoqi@0 | 44 | ciArray( arrayHandle h_a) : ciObject(h_a), _length(h_a()->length()) {} |
| aoqi@0 | 45 | ciArray( objArrayHandle h_a) : ciObject(h_a), _length(h_a()->length()) {} |
| aoqi@0 | 46 | ciArray(typeArrayHandle h_a) : ciObject(h_a), _length(h_a()->length()) {} |
| aoqi@0 | 47 | |
| aoqi@0 | 48 | ciArray(ciKlass* klass, int len) : ciObject(klass), _length(len) {} |
| aoqi@0 | 49 | |
| aoqi@0 | 50 | arrayOop get_arrayOop() const { return (arrayOop)get_oop(); } |
| aoqi@0 | 51 | |
| aoqi@0 | 52 | const char* type_string() { return "ciArray"; } |
| aoqi@0 | 53 | |
| aoqi@0 | 54 | void print_impl(outputStream* st); |
| aoqi@0 | 55 | |
| aoqi@0 | 56 | ciConstant element_value_impl(BasicType elembt, arrayOop ary, int index); |
| aoqi@0 | 57 | |
| aoqi@0 | 58 | public: |
| aoqi@0 | 59 | int length() { return _length; } |
| aoqi@0 | 60 | |
| aoqi@0 | 61 | // Convenience routines. |
| aoqi@0 | 62 | ciArrayKlass* array_type() { return klass()->as_array_klass(); } |
| aoqi@0 | 63 | ciType* element_type() { return array_type()->element_type(); } |
| aoqi@0 | 64 | BasicType element_basic_type() { return element_type()->basic_type(); } |
| aoqi@0 | 65 | |
| aoqi@0 | 66 | // Current value of an element. |
| aoqi@0 | 67 | // Returns T_ILLEGAL if there is no element at the given index. |
| aoqi@0 | 68 | ciConstant element_value(int index); |
| aoqi@0 | 69 | |
| aoqi@0 | 70 | // Current value of an element at the specified offset. |
| aoqi@0 | 71 | // Returns T_ILLEGAL if there is no element at the given offset. |
| aoqi@0 | 72 | ciConstant element_value_by_offset(intptr_t element_offset); |
| aoqi@0 | 73 | |
| aoqi@0 | 74 | // What kind of ciObject is this? |
| aoqi@0 | 75 | bool is_array() { return true; } |
| aoqi@0 | 76 | bool is_java_object() { return true; } |
| aoqi@0 | 77 | }; |
| aoqi@0 | 78 | |
| aoqi@0 | 79 | #endif // SHARE_VM_CI_CIARRAY_HPP |
