sourcepawn2: jitcraft/FixedArray.cpp@75e385f68b7e

     1 /*

     2  * Copyright (C) 2012 David Anderson

     3  *

     4  * This file is part of JITCraft.

     5  *

     6  * JITCraft is free software: you can redistribute it and/or modify it under

     7  * the terms of the GNU General Public License as published by the Free

     8  * Software Foundation, either version 3 of the License, or (at your option)

     9  * any later version.

    10  *

    11  * Foobar is distributed in the hope that it will be useful, but WITHOUT ANY

    12  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

    13  * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

    14  *

    15  * You should have received a copy of the GNU General Public License along with

    16  * JITCraft. If not, see http://www.gnu.org/licenses/.

    17  */

    18 #include <limits.h>

    19 #include "FixedArray.h"

    20 #include "Zone.h"

    22 using namespace jc;

    24 static const unsigned kMaxFixedArrayLength = ((INT_MAX - sizeof(FixedArray)) / sizeof(jc::Object *));

    26 void

    27 FixedArray::init(unsigned length)

    28 {

    29     WRITE_FIELD(length, length);

    30 }

    32 FixedArray *

    33 FixedArray::New(Zone *zone, unsigned length, Heap::Tenure tenure)

    34 {

    35     // :TODO: error...

    36     if (length >= kMaxFixedArrayLength) {

    37         assert(false);

    38         return NULL;

    39     }

    41     Object *obj = zone->allocate(MapKind_FixedArray, SizeFor(length), tenure);

    42     if (!obj)

    43         return NULL;

    45     FixedArray *array = FixedArray::cast(obj);

    46     array->init(length);

    47     return array;

    48 }

    50 void

    51 ByteArray::init(unsigned length)

    52 {

    53     WRITE_FIELD(length, length);

    54 }

    56 ByteArray *

    57 ByteArray::New(Zone *zone, unsigned length, Heap::Tenure tenure)

    58 {

    59     // :TODO: error...

    60     if (length >= kMaxFixedArrayLength) {

    61         assert(false);

    62         return NULL;

    63     }

    65     Object *obj = zone->allocate(MapKind_ByteArray, SizeFor(length), tenure);

    66     if (!obj)

    67         return NULL;

    69     ByteArray *array = ByteArray::cast(obj);

    70     array->init(length);

    71     return array;

    72 }

author	David Anderson <dvander@alliedmods.net>
	Sat Jun 30 19:38:53 2012 -0700 (2012-06-30)
changeset 12	75e385f68b7e
child 13	627b6b94e774
permissions	-rw-r--r--