97 lines
3.0 KiB
Haxe
97 lines
3.0 KiB
Haxe
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/*
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* Copyright (C)2005-2019 Haxe Foundation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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package haxe.io;
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typedef ArrayBufferViewData = ArrayBufferViewImpl;
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class ArrayBufferViewImpl {
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public var bytes:haxe.io.Bytes;
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public var byteOffset:Int;
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public var byteLength:Int;
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public function new(bytes, pos, length) {
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this.bytes = bytes;
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this.byteOffset = pos;
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this.byteLength = length;
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}
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public function sub(begin:Int, ?length:Int) {
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if (length == null)
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length = byteLength - begin;
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if (begin < 0 || length < 0 || begin + length > byteLength)
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throw Error.OutsideBounds;
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return new ArrayBufferViewImpl(bytes, byteOffset + begin, length);
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}
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public function subarray(?begin:Int, ?end:Int) {
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if (begin == null)
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begin = 0;
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if (end == null)
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end = byteLength - begin;
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return sub(begin, end - begin);
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}
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}
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abstract ArrayBufferView(ArrayBufferViewData) {
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public var buffer(get, never):haxe.io.Bytes;
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public var byteOffset(get, never):Int;
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public var byteLength(get, never):Int;
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public inline function new(size:Int) {
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this = new ArrayBufferViewData(haxe.io.Bytes.alloc(size), 0, size);
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}
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inline function get_byteOffset():Int
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return this.byteOffset;
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inline function get_byteLength():Int
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return this.byteLength;
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inline function get_buffer():haxe.io.Bytes
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return this.bytes;
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public inline function sub(begin:Int, ?length:Int):ArrayBufferView {
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return fromData(this.sub(begin, length));
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}
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public inline function subarray(?begin:Int, ?end:Int):ArrayBufferView {
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return fromData(this.subarray(begin, end));
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}
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public inline function getData():ArrayBufferViewData {
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return this;
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}
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public static inline function fromData(a:ArrayBufferViewData):ArrayBufferView {
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return cast a;
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}
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public static function fromBytes(bytes:haxe.io.Bytes, pos = 0, ?length:Int):ArrayBufferView {
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if (length == null)
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length = bytes.length - pos;
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if (pos < 0 || length < 0 || pos + length > bytes.length)
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throw Error.OutsideBounds;
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return fromData(new ArrayBufferViewData(bytes, pos, length));
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}
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}
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