| /* |
| * Copyright 2024 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. |
| */ |
| |
| import Foundation |
| |
| @usableFromInline |
| enum BitWidth: UInt64, CaseIterable { |
| case w8 = 0 |
| case w16 = 1 |
| case w32 = 2 |
| case w64 = 3 |
| } |
| |
| extension BitWidth: Comparable { |
| @usableFromInline |
| static func < (lhs: BitWidth, rhs: BitWidth) -> Bool { |
| lhs.rawValue < rhs.rawValue |
| } |
| |
| @inline(__always) |
| static func widthB(_ v: Int) -> BitWidth { |
| switch v { |
| case 1: return .w8 |
| case 2: return .w16 |
| case 4: return .w32 |
| case 8: return .w64 |
| default: |
| assert(false, "We shouldn't reach here") |
| return .w64 |
| } |
| } |
| |
| @inline(__always) |
| static func max(_ lhs: BitWidth, rhs: BitWidth) -> BitWidth { |
| if lhs.rawValue > rhs.rawValue { return lhs } |
| return rhs |
| } |
| } |
