Package.swift

// swift-tools-version:5.10
import Foundation
import PackageDescription

#if os(Windows)
  let osIsWindows = true
#else
  let osIsWindows = false
#endif

/// Settings to be passed to swiftc for all targets.
let allTargetsSwiftSettings: [SwiftSetting] = [
  .unsafeFlags(["-warnings-as-errors"])
]

/// Dependencies for documentation extraction.
///
/// Most people don't need to extract documentation; set `HYLO_ENABLE_DOC_GENERATION` in your
/// environment if you do.
let docGenerationDependency: [Package.Dependency] =
  ProcessInfo.processInfo.environment["HYLO_ENABLE_DOC_GENERATION"] != nil
  ? [.package(url: "https://github.com/apple/swift-docc-plugin.git", from: "1.1.0")] : []

let package = Package(
  name: "Hylo",

  platforms: [
    .macOS(.v13)
  ],

  products: [
    .executable(name: "hc", targets: ["hc"]),
    .executable(name: "hylo-demangle", targets: ["hylo-demangle"]),
    .library(name: "FrontEnd", targets: ["FrontEnd"]),
  ],

  dependencies: [
    .package(
      url: "https://github.com/apple/swift-argument-parser.git",
      from: "1.1.4"),
    .package(
      url: "https://github.com/apple/swift-collections.git",
      from: "1.0.0"),
    .package(
      url: "https://github.com/apple/swift-algorithms.git",
      from: "1.2.0"),
    .package(
      url: "https://github.com/hylo-lang/Durian.git",
      from: "1.2.0"),
    .package(
      url: "https://github.com/attaswift/BigInt.git",
      from: "5.3.0"),
    .package(
      url: "https://github.com/hylo-lang/Swifty-LLVM",
      branch: "main"),
    .package(
      url: "https://github.com/apple/swift-format",
      from: "508.0.1"),
    .package(
      url: "https://github.com/SwiftPackageIndex/SPIManifest.git",
      from: "0.12.0"),
  ]
    + docGenerationDependency,

  targets: [
    // The compiler's executable target.
    .executableTarget(
      name: "hc",
      dependencies: [
        "Driver"
      ],
      swiftSettings: allTargetsSwiftSettings),

    .executableTarget(
      name: "hylo-demangle",
      dependencies: [
        "IR"
      ],
      swiftSettings: allTargetsSwiftSettings),

    .target(
      name: "Driver",
      dependencies: [
        "FrontEnd",
        "IR",
        "CodeGenLLVM",
        "StandardLibrary",
        .product(name: "ArgumentParser", package: "swift-argument-parser"),
      ],
      swiftSettings: allTargetsSwiftSettings),

    // Targets related to the compiler's internal library.
    .target(
      name: "FrontEnd",
      dependencies: [
        "Utils",
        .product(name: "Collections", package: "swift-collections"),
        .product(name: "Durian", package: "Durian"),
        .product(name: "BigInt", package: "BigInt"),
      ],
      swiftSettings: allTargetsSwiftSettings),

    .target(
      name: "IR",
      dependencies: ["Utils", "FrontEnd"],
      swiftSettings: allTargetsSwiftSettings),

    .target(
      name: "CodeGenLLVM",
      dependencies: [
        "FrontEnd",
        "IR",
        "Utils",
        .product(name: "SwiftyLLVM", package: "Swifty-LLVM"),
      ],
      path: "Sources/CodeGen/LLVM",
      swiftSettings: allTargetsSwiftSettings),

    .target(
      name: "Utils",
      dependencies: [
        .product(name: "BigInt", package: "BigInt"),
        .product(name: "Collections", package: "swift-collections"),
        .product(name: "Algorithms", package: "swift-algorithms"),
      ],
      swiftSettings: allTargetsSwiftSettings),

    .target(
      name: "TestUtils",
      dependencies: ["FrontEnd", "Driver", "Utils"],
      swiftSettings: allTargetsSwiftSettings),

    .target(
      name: "StandardLibrary",
      dependencies: ["FrontEnd", "Utils"],
      path: "StandardLibrary",
      resources: [.copy("Sources")],
      swiftSettings: allTargetsSwiftSettings),

    .plugin(
      name: "TestGeneratorPlugin", capability: .buildTool(),
      // Workaround for SPM bug; see PortableBuildToolPlugin.swift
      dependencies: osIsWindows ? [] : ["GenerateHyloFileTests"]),

    .executableTarget(
      name: "GenerateHyloFileTests",
      dependencies: [
        .product(name: "ArgumentParser", package: "swift-argument-parser"),
        "Utils",
      ],
      swiftSettings: allTargetsSwiftSettings),

    // Test targets.
    .testTarget(
      name: "UtilsTests",
      dependencies: ["Utils", .product(name: "Algorithms", package: "swift-algorithms")],
      swiftSettings: allTargetsSwiftSettings),

    .testTarget(
      name: "DriverTests",
      dependencies: ["Driver", "TestUtils"],
      swiftSettings: allTargetsSwiftSettings),

    .testTarget(
      name: "ManglingTests",
      dependencies: ["FrontEnd", "IR", "TestUtils", "StandardLibrary"],
      swiftSettings: allTargetsSwiftSettings),

    .testTarget(
      name: "HyloTests",
      dependencies: [
        "FrontEnd", "IR", "TestUtils", "StandardLibrary", "Utils",
        .product(name: "Algorithms", package: "swift-algorithms"),
      ],
      exclude: ["TestCases"],
      swiftSettings: allTargetsSwiftSettings,
      plugins: ["TestGeneratorPlugin"]),

    .testTarget(
      name: "EndToEndTests",
      dependencies: ["Driver", "TestUtils"],
      exclude: ["TestCases"],
      swiftSettings: allTargetsSwiftSettings,
      plugins: ["TestGeneratorPlugin"]),

    .testTarget(
      name: "LibraryTests",
      dependencies: ["Driver", "TestUtils"],
      exclude: ["TestCases"],
      swiftSettings: allTargetsSwiftSettings,
      plugins: ["TestGeneratorPlugin"]),
  ]
    // On Windows we have a dummy library target that can be used to build all the build tool
    // dependencies for non-reentrant builds.  See SPMBuildToolSupport/README.md for more info.
    + (osIsWindows
      ? [
        .target(
          name: "BuildToolDependencies",
          dependencies: ["GenerateHyloFileTests"],
          swiftSettings: allTargetsSwiftSettings)
      ] : []) as [PackageDescription.Target]
)