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ByteBuffer-conversions.swift
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ByteBuffer-conversions.swift
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//===----------------------------------------------------------------------===//
//
// This source file is part of the SwiftNIO open source project
//
// Copyright (c) 2020 Apple Inc. and the SwiftNIO project authors
// Licensed under Apache License v2.0
//
// See LICENSE.txt for license information
// See CONTRIBUTORS.txt for the list of SwiftNIO project authors
//
// SPDX-License-Identifier: Apache-2.0
//
//===----------------------------------------------------------------------===//
#if canImport(Dispatch)
import Dispatch
#endif
extension Array where Element == UInt8 {
/// Creates a `[UInt8]` from the given buffer. The entire readable portion of the buffer will be read.
/// - parameter buffer: The buffer to read.
@inlinable
public init(buffer: ByteBuffer) {
var buffer = buffer
self = buffer.readBytes(length: buffer.readableBytes)!
}
}
extension String {
/// Creates a `String` from a given `ByteBuffer`. The entire readable portion of the buffer will be read.
/// - parameter buffer: The buffer to read.
@inlinable
public init(buffer: ByteBuffer) {
var buffer = buffer
self = buffer.readString(length: buffer.readableBytes)!
}
/// Creates a `String` from a given `Int` with a given base (`radix`), padded with zeroes to the provided `padding` size.
///
/// - parameters:
/// - radix: radix base to use for conversion.
/// - padding: the desired lenght of the resulting string.
@inlinable
internal init<Value>(_ value: Value, radix: Int, padding: Int) where Value: BinaryInteger {
let formatted = String(value, radix: radix)
self = String(repeating: "0", count: padding - formatted.count) + formatted
}
}
#if canImport(Dispatch)
extension DispatchData {
/// Creates a `DispatchData` from a given `ByteBuffer`. The entire readable portion of the buffer will be read.
/// - parameter buffer: The buffer to read.
@inlinable
public init(buffer: ByteBuffer) {
var buffer = buffer
self = buffer.readDispatchData(length: buffer.readableBytes)!
}
}
#endif