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//
// ByteVectorExt.swift
//
// Created by Giles Payne on 2020/01/04.
//
import Foundation
public extension ByteVector {
convenience init(_ array:[Int8]) {
let data = array.withUnsafeBufferPointer { Data(buffer: $0) }
self.init(data:data);
}
convenience init(_ array:[UInt8]) {
let data = array.withUnsafeBufferPointer { Data(buffer: $0) }
self.init(data:data);
}
subscript(index: Int) -> Int8 {
get {
return self.get(index)
}
}
var array: [Int8] {
get {
var ret = Array<Int8>(repeating: 0, count: data.count/MemoryLayout<Int8>.stride)
_ = ret.withUnsafeMutableBytes { data.copyBytes(to: $0) }
return ret
}
}
var unsignedArray: [UInt8] {
get {
var ret = Array<UInt8>(repeating: 0, count: data.count/MemoryLayout<UInt8>.stride)
_ = ret.withUnsafeMutableBytes { data.copyBytes(to: $0) }
return ret
}
}
}
extension ByteVector : Sequence {
public typealias Iterator = ByteVectorIterator
public func makeIterator() -> ByteVectorIterator {
return ByteVectorIterator(self)
}
}
public struct ByteVectorIterator: IteratorProtocol {
public typealias Element = Int8
let byteVector: ByteVector
var pos = 0
init(_ byteVector: ByteVector) {
self.byteVector = byteVector
}
mutating public func next() -> Int8? {
guard pos >= 0 && pos < byteVector.length
else { return nil }
pos += 1
return byteVector.get(pos - 1)
}
}
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