128 lines
2.9 KiB
C++
128 lines
2.9 KiB
C++
/*
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* Copyright (C) 2011 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_PRIMITIVE_H_
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#define ART_RUNTIME_PRIMITIVE_H_
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#include <sys/types.h>
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#include "base/logging.h"
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#include "base/macros.h"
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#include "mirror/object_reference.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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class Primitive {
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public:
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enum Type {
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kPrimNot = 0,
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kPrimBoolean,
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kPrimByte,
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kPrimChar,
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kPrimShort,
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kPrimInt,
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kPrimLong,
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kPrimFloat,
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kPrimDouble,
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kPrimVoid,
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};
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static Type GetType(char type) {
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switch (type) {
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case 'B':
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return kPrimByte;
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case 'C':
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return kPrimChar;
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case 'D':
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return kPrimDouble;
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case 'F':
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return kPrimFloat;
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case 'I':
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return kPrimInt;
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case 'J':
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return kPrimLong;
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case 'S':
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return kPrimShort;
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case 'Z':
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return kPrimBoolean;
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case 'V':
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return kPrimVoid;
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default:
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return kPrimNot;
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}
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}
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static size_t ComponentSize(Type type) {
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switch (type) {
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case kPrimVoid: return 0;
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case kPrimBoolean:
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case kPrimByte: return 1;
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case kPrimChar:
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case kPrimShort: return 2;
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case kPrimInt:
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case kPrimFloat: return 4;
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case kPrimLong:
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case kPrimDouble: return 8;
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case kPrimNot: return sizeof(mirror::HeapReference<mirror::Object>);
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default:
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LOG(FATAL) << "Invalid type " << static_cast<int>(type);
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return 0;
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}
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}
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static size_t FieldSize(Type type) {
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return ComponentSize(type) <= 4 ? 4 : 8;
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}
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static const char* Descriptor(Type type) {
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switch (type) {
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case kPrimBoolean:
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return "Z";
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case kPrimByte:
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return "B";
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case kPrimChar:
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return "C";
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case kPrimShort:
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return "S";
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case kPrimInt:
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return "I";
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case kPrimFloat:
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return "F";
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case kPrimLong:
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return "J";
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case kPrimDouble:
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return "D";
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case kPrimVoid:
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return "V";
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default:
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LOG(FATAL) << "Primitive char conversion on invalid type " << static_cast<int>(type);
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return NULL;
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}
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}
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private:
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DISALLOW_IMPLICIT_CONSTRUCTORS(Primitive);
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};
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std::ostream& operator<<(std::ostream& os, const Primitive::Type& state);
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} // namespace art
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#endif // ART_RUNTIME_PRIMITIVE_H_
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