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/*
* Copyright 2021 Google Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#if !os(WASI)
import Foundation
#else
import SwiftOverlayShims
#endif
/// FlatBuffersUtils hosts some utility functions that might be useful
public enum FlatBuffersUtils {
/// Gets the size of the prefix
/// - Parameter bb: Flatbuffer object
public static func getSizePrefix(bb: ByteBuffer) -> Int32 {
bb.read(def: Int32.self, position: bb.reader)
}
/// Removes the prefix by duplicating the Flatbuffer this call is expensive since its
/// creates a new buffer use `readPrefixedSizeCheckedRoot` instead
/// unless a completely new buffer is required
/// - Parameter bb: Flatbuffer object
///
///
public static func removeSizePrefix(bb: ByteBuffer) -> ByteBuffer {
bb.duplicate(removing: MemoryLayout<Int32>.size)
}
}
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