dvander@161: /* vim: set ts=4 sw=4 tw=99 et:
dvander@54:  *
dvander@12:  * Copyright (C) 2012 David Anderson
dvander@12:  *
dvander@161:  * This file is part of SourcePawn.
dvander@12:  *
dvander@161:  * SourcePawn is free software: you can redistribute it and/or modify it under
dvander@12:  * the terms of the GNU General Public License as published by the Free
dvander@12:  * Software Foundation, either version 3 of the License, or (at your option)
dvander@12:  * any later version.
dvander@12:  * 
dvander@161:  * SourcePawn is distributed in the hope that it will be useful, but WITHOUT ANY
dvander@12:  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
dvander@12:  * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
dvander@12:  *
dvander@12:  * You should have received a copy of the GNU General Public License along with
dvander@161:  * SourcePawn. If not, see http://www.gnu.org/licenses/.
dvander@12:  */
dvander@12: #ifndef _include_jitcraft_fixedarray_h_
dvander@12: #define _include_jitcraft_fixedarray_h_
dvander@12: 
dvander@12: #include "Heap.h"
dvander@12: 
dvander@59: namespace ke {
dvander@12: 
dvander@12: // A fixed-length array that contains Object * slots.
dvander@12: class FixedArray : public Object
dvander@12: {
dvander@13:     uint32 length_;
dvander@12: 
dvander@12:   private:
dvander@12:     Object **vec() {
dvander@12:         return reinterpret_cast<Object **>(this + 1);
dvander@12:     }
dvander@12: 
dvander@12:   public:
dvander@12:     static FixedArray *New(Zone *zone, unsigned length, Heap::Tenure tenure);
dvander@12: 
dvander@12:     unsigned length() {
dvander@13:         return length_;
dvander@12:     }
dvander@12:     Object *at(size_t i) {
dvander@12:         assert(i < length());
dvander@12:         return vec()[i];
dvander@12:     }
dvander@12:     void set(Zone *zone, size_t i, Object *obj) {
dvander@12:         assert(i < length());
dvander@12:         write(zone, &vec()[i], obj);
dvander@12:     }
dvander@161:     size_t objSize() {
dvander@161:         return SizeFor(length());
dvander@161:     }
dvander@12: 
dvander@12:     static size_t SizeFor(unsigned length) {
dvander@12:         return sizeof(FixedArray) + sizeof(Object *) * length;
dvander@12:     }
dvander@12: 
dvander@12:     static inline FixedArray *cast(Object *obj) {
dvander@35:         assert(!obj || obj->is(MapKind_FixedArray));
dvander@12:         return reinterpret_cast<FixedArray *>(obj);
dvander@12:     }
dvander@12: };
dvander@12: 
dvander@12: // A fixed-length array containing raw bytes.
dvander@12: class ByteArray : public Object
dvander@12: {
dvander@13:     uint32 length_;
dvander@12: 
dvander@12:   public:
dvander@21:     static ByteArray *New(Zone *zone, unsigned length, Heap::Tenure tenure = Heap::Tenure_Default);
dvander@85:     static ByteArray *New(Zone *zone, Handle<Map> map, unsigned length, Heap::Tenure tenure = Heap::Tenure_Default);
dvander@12: 
dvander@12:     unsigned length() {
dvander@13:         return length_;
dvander@12:     }
dvander@47:     Address raw() {
dvander@12:         return reinterpret_cast<uint8 *>(this + 1);
dvander@12:     }
dvander@161:     size_t objSize() {
dvander@161:         return SizeFor(length());
dvander@161:     }
dvander@12: 
dvander@12:     static size_t SizeFor(unsigned length) {
dvander@161:         return sizeof(ByteArray) + sizeof(uint8) * length;
dvander@12:     }
dvander@12: 
dvander@12:     static inline ByteArray *cast(Object *obj) {
dvander@35:         assert(!obj || obj->is(MapKind_ByteArray));
dvander@12:         return reinterpret_cast<ByteArray *>(obj);
dvander@12:     }
dvander@12: };
dvander@12: 
dvander@12: }
dvander@12: 
dvander@12: #endif // _include_jitcraft_fixedarray_h_