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95 lines
2.4 KiB
95 lines
2.4 KiB
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_RUNTIME_JVALUE_H_
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#define ART_RUNTIME_JVALUE_H_
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#include "base/locks.h"
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#include "base/macros.h"
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#include <stdint.h>
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#include "obj_ptr.h"
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namespace art {
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namespace mirror {
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class Object;
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} // namespace mirror
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union PACKED(alignof(mirror::Object*)) JValue {
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// We default initialize JValue instances to all-zeros.
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JValue() : j(0) {}
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template<typename T> ALWAYS_INLINE static JValue FromPrimitive(T v);
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int8_t GetB() const { return b; }
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void SetB(int8_t new_b) {
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j = ((static_cast<int64_t>(new_b) << 56) >> 56); // Sign-extend to 64 bits.
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}
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uint16_t GetC() const { return c; }
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void SetC(uint16_t new_c) {
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j = static_cast<int64_t>(new_c); // Zero-extend to 64 bits.
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}
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double GetD() const { return d; }
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void SetD(double new_d) { d = new_d; }
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float GetF() const { return f; }
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void SetF(float new_f) { f = new_f; }
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int32_t GetI() const { return i; }
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void SetI(int32_t new_i) {
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j = ((static_cast<int64_t>(new_i) << 32) >> 32); // Sign-extend to 64 bits.
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}
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int64_t GetJ() const { return j; }
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void SetJ(int64_t new_j) { j = new_j; }
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mirror::Object* GetL() const REQUIRES_SHARED(Locks::mutator_lock_) {
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return l;
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}
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ALWAYS_INLINE
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void SetL(ObjPtr<mirror::Object> new_l) REQUIRES_SHARED(Locks::mutator_lock_);
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int16_t GetS() const { return s; }
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void SetS(int16_t new_s) {
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j = ((static_cast<int64_t>(new_s) << 48) >> 48); // Sign-extend to 64 bits.
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}
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uint8_t GetZ() const { return z; }
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void SetZ(uint8_t new_z) {
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j = static_cast<int64_t>(new_z); // Zero-extend to 64 bits.
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}
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mirror::Object** GetGCRoot() { return &l; }
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private:
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uint8_t z;
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int8_t b;
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uint16_t c;
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int16_t s;
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int32_t i;
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int64_t j;
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float f;
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double d;
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mirror::Object* l;
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};
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} // namespace art
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#endif // ART_RUNTIME_JVALUE_H_
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