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Ian Rogers306057f2012-11-26 12:45:53 -08001/*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
Brian Carlstromfc0e3212013-07-17 14:40:12 -070017#ifndef ART_RUNTIME_JVALUE_H_
18#define ART_RUNTIME_JVALUE_H_
Ian Rogers306057f2012-11-26 12:45:53 -080019
20#include "base/macros.h"
21
Ian Rogers62d6c772013-02-27 08:32:07 -080022#include <stdint.h>
23
Ian Rogers306057f2012-11-26 12:45:53 -080024namespace art {
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080025namespace mirror {
Ian Rogers306057f2012-11-26 12:45:53 -080026class Object;
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080027} // namespace mirror
Ian Rogers306057f2012-11-26 12:45:53 -080028
29union PACKED(4) JValue {
30 // We default initialize JValue instances to all-zeros.
31 JValue() : j(0) {}
32
33 int8_t GetB() const { return b; }
34 void SetB(int8_t new_b) {
Douglas Leung44f10192015-09-23 16:42:08 -070035 j = ((static_cast<int64_t>(new_b) << 56) >> 56); // Sign-extend to 64 bits.
Ian Rogers306057f2012-11-26 12:45:53 -080036 }
37
38 uint16_t GetC() const { return c; }
39 void SetC(uint16_t new_c) { c = new_c; }
40
41 double GetD() const { return d; }
42 void SetD(double new_d) { d = new_d; }
43
44 float GetF() const { return f; }
45 void SetF(float new_f) { f = new_f; }
46
47 int32_t GetI() const { return i; }
Douglas Leung44f10192015-09-23 16:42:08 -070048 void SetI(int32_t new_i) {
49 j = ((static_cast<int64_t>(new_i) << 32) >> 32); // Sign-extend to 64 bits.
50 }
Ian Rogers306057f2012-11-26 12:45:53 -080051
52 int64_t GetJ() const { return j; }
53 void SetJ(int64_t new_j) { j = new_j; }
54
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080055 mirror::Object* GetL() const { return l; }
56 void SetL(mirror::Object* new_l) { l = new_l; }
Ian Rogers306057f2012-11-26 12:45:53 -080057
58 int16_t GetS() const { return s; }
59 void SetS(int16_t new_s) {
Douglas Leung44f10192015-09-23 16:42:08 -070060 j = ((static_cast<int64_t>(new_s) << 48) >> 48); // Sign-extend to 64 bits.
Ian Rogers306057f2012-11-26 12:45:53 -080061 }
62
63 uint8_t GetZ() const { return z; }
64 void SetZ(uint8_t new_z) { z = new_z; }
65
Mingyao Yang1f2d3ba2015-05-18 12:12:50 -070066 mirror::Object** GetGCRoot() { return &l; }
67
Ian Rogers306057f2012-11-26 12:45:53 -080068 private:
69 uint8_t z;
70 int8_t b;
71 uint16_t c;
72 int16_t s;
73 int32_t i;
74 int64_t j;
75 float f;
76 double d;
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080077 mirror::Object* l;
Ian Rogers306057f2012-11-26 12:45:53 -080078};
79
80} // namespace art
81
Brian Carlstromfc0e3212013-07-17 14:40:12 -070082#endif // ART_RUNTIME_JVALUE_H_