File: RuleNameCacheGenerator.swift

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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2019 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//

import Foundation

/// Generates the rule registry file used to populate the default configuration.
final class RuleNameCacheGenerator: FileGenerator {

  /// The rules collected by scanning the formatter source code.
  let ruleCollector: RuleCollector

  /// Creates a new rule registry generator.
  init(ruleCollector: RuleCollector) {
    self.ruleCollector = ruleCollector
  }

  func write(into handle: FileHandle) throws {
    handle.write(
      """
      //===----------------------------------------------------------------------===//
      //
      // This source file is part of the Swift.org open source project
      //
      // Copyright (c) 2014 - 2019 Apple Inc. and the Swift project authors
      // Licensed under Apache License v2.0 with Runtime Library Exception
      //
      // See https://swift.org/LICENSE.txt for license information
      // See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
      //
      //===----------------------------------------------------------------------===//

      // This file is automatically generated with generate-swift-format. Do not edit!

      /// By default, the `Rule.ruleName` should be the name of the implementing rule type.
      @_spi(Testing)
      public let ruleNameCache: [ObjectIdentifier: String] = [

      """
    )

    for detectedRule in ruleCollector.allLinters.sorted(by: { $0.typeName < $1.typeName }) {
      handle.write("  ObjectIdentifier(\(detectedRule.typeName).self): \"\(detectedRule.typeName)\",\n")
    }
    handle.write("]\n")
  }
}