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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift open source project
//
// Copyright (c) 2025 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
public import SWBUtil
public import SWBMacro
public final class SwiftHeaderToolSpec : CommandLineToolSpec, SpecImplementationType, @unchecked Sendable {
public static let identifier = "com.apple.build-tools.swift-header-tool"
public override func resolveExecutionDescription(_ cbc: CommandBuildContext, _ delegate: any DiagnosticProducingDelegate, lookup: ((MacroDeclaration) -> MacroExpression?)? = nil) -> String {
"Merge Objective-C generated interface headers"
}
public static func construct(registry: SpecRegistry, proxy: SpecProxy) -> Spec {
return SwiftHeaderToolSpec(registry, proxy, ruleInfoTemplate: [], commandLineTemplate: [])
}
public override func constructTasks(_ cbc: CommandBuildContext, _ delegate: any TaskGenerationDelegate) async {
// FIXME: We should ensure this cannot happen.
fatalError("unexpected direct invocation")
}
/// Construct a new task to run the Swift header tool.
public func constructSwiftHeaderToolTask(_ cbc: CommandBuildContext, _ delegate: any TaskGenerationDelegate, inputs: [String: Path], outputPath: Path, mustPrecede: [any PlannedTask] = []) {
let inputPaths = inputs.values.sorted()
let commandLine = ["builtin-swiftHeaderTool"] + (!cbc.producer.isApplePlatform ? ["-single"] : []) + inputs.sorted(byKey: <).flatMap { (arch, path) in ["-arch", arch, path.str] } + ["-o", outputPath.str]
delegate.createTask(type: self, ruleInfo: ["SwiftMergeGeneratedHeaders", outputPath.str] + inputPaths.map { $0.str }, commandLine: commandLine, environment: environmentFromSpec(cbc, delegate), workingDirectory: cbc.producer.defaultWorkingDirectory, inputs: inputPaths, outputs: [outputPath], mustPrecede: mustPrecede, action: delegate.taskActionCreationDelegate.createSwiftHeaderToolTaskAction(), execDescription: resolveExecutionDescription(cbc, delegate), preparesForIndexing: true, enableSandboxing: enableSandboxing, additionalTaskOrderingOptions: [.compilationRequirement, .blockedByTargetHeaders])
}
}
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