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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 SWBProtocol
import SWBUtil
public import SWBMacro
/// Build properties, such as build settings, which are imparted recursively onto any clients.
///
/// Build settings defined by this object will override settings defined in the client target itself, so merging requires
/// `$(inherited)` to be present in the build setting value.
public final class ImpartedBuildProperties: ProjectModelItem {
/// The (cached) parsed build settings table.
public var buildSettings: MacroValueAssignmentTable { return buildSettingsCache.getValue(self) }
private let buildSettingsCache = LazyCache { (buildProperties: ImpartedBuildProperties) -> MacroValueAssignmentTable in
return BuildConfiguration.createTableFromUserSettings(buildProperties.buildSettingsData, namespace: buildProperties.namespace)
}
private let buildSettingsData: [String: PropertyListItem]
/// The namespace to use for lazily parsing build settings.
private let namespace: MacroNamespace
@_spi(Testing) public init(_ model: SWBProtocol.ImpartedBuildProperties, _ pifLoader: PIFLoader) {
self.namespace = pifLoader.userNamespace
self.buildSettingsData = BuildConfiguration.convertMacroBindingSourceToPlistDictionary(model.buildSettings)
}
init(fromDictionary pifDict: ProjectModelItemPIF, withPIFLoader pifLoader: PIFLoader) throws {
// buildSettings is required.
guard case let .plDict(settingsDict)? = pifDict[PIFKey_BuildConfiguration_buildSettings] else {
throw PIFParsingError.missingRequiredKey(keyName: PIFKey_BuildConfiguration_buildSettings, objectType: Self.self)
}
// Create the macro assignment table.
namespace = pifLoader.userNamespace
buildSettingsData = settingsDict
}
/// Returns `true` if there are no declared properties.
public var isEmpty: Bool {
return buildSettingsData.isEmpty
}
}
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