swiftlang · d-ronnqvist · Mar 21, 2025
diff --git a/Package.swift b/Package.swift
@@ -14,6 +14,8 @@ import class Foundation.ProcessInfo
 
 let swiftSettings: [SwiftSetting] = [
     .unsafeFlags(["-Xfrontend", "-warn-long-expression-type-checking=1000"], .when(configuration: .debug)),
+
+    .enableUpcomingFeature("InternalImportsByDefault"), // SE-0409: https://github.com/swiftlang/swift-evolution/blob/main/proposals/0409-access-level-on-imports.md
 ]
 
 let package = Package(

diff --git a/Sources/SwiftDocC/Benchmark/Benchmark.swift b/Sources/SwiftDocC/Benchmark/Benchmark.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 
 /// A logger that runs benchmarks and stores the results.
 public class Benchmark: Encodable {

diff --git a/Sources/SwiftDocC/Benchmark/BenchmarkResults.swift b/Sources/SwiftDocC/Benchmark/BenchmarkResults.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 
 /// The results of a single benchmark run.
 public struct BenchmarkResults: Codable {

diff --git a/Sources/SwiftDocC/Benchmark/Metrics/Duration.swift b/Sources/SwiftDocC/Benchmark/Metrics/Duration.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 
 extension Benchmark {
     /// A duration metric in milliseconds.

diff --git a/Sources/SwiftDocC/Benchmark/Metrics/OutputSize.swift b/Sources/SwiftDocC/Benchmark/Metrics/OutputSize.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 
 extension Benchmark {
     /// Measures the total output size of a DocC archive.

diff --git a/Sources/SwiftDocC/Catalog Processing/GeneratedCurationWriter.swift b/Sources/SwiftDocC/Catalog Processing/GeneratedCurationWriter.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 import SymbolKit
 
 /// A type that writes the auto-generated curation into documentation extension files.

diff --git a/Sources/SwiftDocC/Checker/Checker.swift b/Sources/SwiftDocC/Checker/Checker.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Markdown
+public import Markdown
 
 /**
  A markup checker.

diff --git a/Sources/SwiftDocC/Checker/Checkers/AbstractContainsFormattedTextOnly.swift b/Sources/SwiftDocC/Checker/Checkers/AbstractContainsFormattedTextOnly.swift
@@ -8,8 +8,8 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
-import Markdown
+public import Foundation
+public import Markdown
 
 /**
  A document's abstract may only contain formatted text. Images and links are not allowed.

diff --git a/Sources/SwiftDocC/Checker/Checkers/DuplicateTopicsSection.swift b/Sources/SwiftDocC/Checker/Checkers/DuplicateTopicsSection.swift
@@ -8,8 +8,8 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
-import Markdown
+public import Foundation
+public import Markdown
 
 /**
  A `Document` may only have one level-2 "Topics" heading at the top level, since it serves as structured data for a documentation bundle's hierarchy.

diff --git a/Sources/SwiftDocC/Checker/Checkers/InvalidAdditionalTitle.swift b/Sources/SwiftDocC/Checker/Checkers/InvalidAdditionalTitle.swift
@@ -8,8 +8,8 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
-import Markdown
+public import Foundation
+public import Markdown
 
 /**
  A document should have a single title, i.e. a single first-level heading.

diff --git a/Sources/SwiftDocC/Checker/Checkers/MissingAbstract.swift b/Sources/SwiftDocC/Checker/Checkers/MissingAbstract.swift
@@ -8,8 +8,8 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
-import Markdown
+public import Foundation
+public import Markdown
 
 /**
  A document should have an abstract.

diff --git a/Sources/SwiftDocC/Checker/Checkers/NonInclusiveLanguageChecker.swift b/Sources/SwiftDocC/Checker/Checkers/NonInclusiveLanguageChecker.swift
@@ -8,8 +8,8 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
-import Markdown
+public import Foundation
+public import Markdown
 
 /// Checks for non-inclusive language in documentation.
 ///

diff --git a/Sources/SwiftDocC/Checker/Checkers/NonOverviewHeadingChecker.swift b/Sources/SwiftDocC/Checker/Checkers/NonOverviewHeadingChecker.swift
@@ -8,8 +8,8 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
-import Markdown
+public import Foundation
+public import Markdown
 
 public struct NonOverviewHeadingChecker: Checker {
     public var overviewHeading: Heading?

diff --git a/Sources/SwiftDocC/Checker/Checkers/SeeAlsoInTopicsHeadingChecker.swift b/Sources/SwiftDocC/Checker/Checkers/SeeAlsoInTopicsHeadingChecker.swift
@@ -8,8 +8,8 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
-import Markdown
+public import Foundation
+public import Markdown
 
 public struct SeeAlsoInTopicsHeadingChecker: Checker {
     public var seeAlsoInTopicsHeadings: [Heading] = []

diff --git a/Sources/SwiftDocC/Converter/DocumentationContextConverter.swift b/Sources/SwiftDocC/Converter/DocumentationContextConverter.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 
 /// A converter from documentation nodes to render nodes.
 ///

diff --git a/Sources/SwiftDocC/Converter/DocumentationNodeConverter.swift b/Sources/SwiftDocC/Converter/DocumentationNodeConverter.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 
 /// A converter from documentation nodes to render nodes.
 public struct DocumentationNodeConverter {

diff --git a/Sources/SwiftDocC/Converter/RenderNode+Coding.swift b/Sources/SwiftDocC/Converter/RenderNode+Coding.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 
 /// An environmental variable to control the output formatting of the encoded render JSON.
 ///

diff --git a/Sources/SwiftDocC/Converter/Rewriter/RenderNodeTransformer.swift b/Sources/SwiftDocC/Converter/Rewriter/RenderNodeTransformer.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 
 /// An object that modifies a render node by applying transformations to it.
 open class RenderNodeTransformer {

diff --git a/Sources/SwiftDocC/Converter/TopicRenderReferenceEncoder.swift b/Sources/SwiftDocC/Converter/TopicRenderReferenceEncoder.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 
 /// A thread-safe cache for encoded render references.
 public typealias RenderReferenceCache = Synchronized<[String: (reference: Data, overrides: [VariantOverride])]>

diff --git a/...iftDocC/DocumentationService/Convert/Symbol Link Resolution/DocCSymbolRepresentable.swift b/...iftDocC/DocumentationService/Convert/Symbol Link Resolution/DocCSymbolRepresentable.swift
@@ -9,7 +9,7 @@
 */
 
 import Foundation
-import SymbolKit
+public import SymbolKit
 
 /// A type that can be converted to a DocC symbol.
 @available(*, deprecated, message: "This deprecated API will be removed after 6.2 is released")

diff --git a/Sources/SwiftDocC/DocumentationService/DocumentationServer+createDefaultServer.swift b/Sources/SwiftDocC/DocumentationService/DocumentationServer+createDefaultServer.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 
 public extension DocumentationServer {
     /// Creates a server configured with default services.

diff --git a/Sources/SwiftDocC/DocumentationService/Models/DocumentationServer+Message.swift b/Sources/SwiftDocC/DocumentationService/Models/DocumentationServer+Message.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 
 public extension DocumentationServer {
     /// A message that can be provided to a documentation service.

diff --git a/Sources/SwiftDocC/DocumentationService/Models/DocumentationServer.swift b/Sources/SwiftDocC/DocumentationService/Models/DocumentationServer.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 
 /// A server that provides documentation-related services.
 ///

diff --git a/Sources/SwiftDocC/DocumentationService/Models/DocumentationServerProtocol.swift b/Sources/SwiftDocC/DocumentationService/Models/DocumentationServerProtocol.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 
 /// Protocol for request-response based servers.
 public protocol DocumentationServerProtocol {

diff --git a/Sources/SwiftDocC/DocumentationService/Models/Services/Convert/ConvertRequest.swift b/Sources/SwiftDocC/DocumentationService/Models/Services/Convert/ConvertRequest.swift
@@ -9,7 +9,7 @@
 */
 
 import SymbolKit
-import Foundation
+public import Foundation
 
 /// A request to convert in-memory documentation.
 public struct ConvertRequest: Codable {

diff --git a/Sources/SwiftDocC/DocumentationService/Models/Services/Convert/ConvertResponse.swift b/Sources/SwiftDocC/DocumentationService/Models/Services/Convert/ConvertResponse.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 
 /// A response for a successful documentation conversion.
 ///

diff --git a/Sources/SwiftDocC/Indexing/Navigator/NavigatorIndex.swift b/Sources/SwiftDocC/Indexing/Navigator/NavigatorIndex.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 import Crypto
 
 /// A protocol to provide data to be indexed.

diff --git a/Sources/SwiftDocC/Indexing/Navigator/NavigatorItem.swift b/Sources/SwiftDocC/Indexing/Navigator/NavigatorItem.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 
 /// Unpacks data as a `T` value
 /// - Note: To save space and avoid padding the data, we unpack data without requiring alignment.

diff --git a/Sources/SwiftDocC/Indexing/Navigator/NavigatorTree.swift b/Sources/SwiftDocC/Indexing/Navigator/NavigatorTree.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 
 /// Defines an object that can be represented as raw Data and therefore serialized to/deserialized from disk.
 public protocol Serializable: LMDBData, RawRepresentable where RawValue == Data {}

diff --git a/Sources/SwiftDocC/Infrastructure/Bundle Assets/BundleData.swift b/Sources/SwiftDocC/Infrastructure/Bundle Assets/BundleData.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 
 /// The data associated with a documentation resource, for a specific trait collection.
 public struct BundleData {

diff --git a/Sources/SwiftDocC/Infrastructure/Bundle Assets/DataAssetManager.swift b/Sources/SwiftDocC/Infrastructure/Bundle Assets/DataAssetManager.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 
 /// A container for a collection of data. Each data can have multiple variants.
 struct DataAssetManager {

diff --git a/Sources/SwiftDocC/Infrastructure/Communication/WebKitCommunicationBridge.swift b/Sources/SwiftDocC/Infrastructure/Communication/WebKitCommunicationBridge.swift
@@ -11,7 +11,7 @@
 // The WebKitCommunicationBridge is only available on platforms that support WebKit.
 #if canImport(WebKit)
 import Foundation
-import WebKit
+public import WebKit
 
 /// Provides bi-directional communication with a documentation renderer via JavaScript calls in a web view.
 public struct WebKitCommunicationBridge: CommunicationBridge {

diff --git a/Sources/SwiftDocC/Infrastructure/Context/DocumentationContext+Configuration.swift b/Sources/SwiftDocC/Infrastructure/Context/DocumentationContext+Configuration.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 import SymbolKit
 
 extension DocumentationContext {

diff --git a/Sources/SwiftDocC/Infrastructure/ConvertActionConverter.swift b/Sources/SwiftDocC/Infrastructure/ConvertActionConverter.swift
@@ -11,7 +11,7 @@
 import Foundation
 
 #if canImport(os)
-import os
+package import os
 #endif
 
 package enum ConvertActionConverter {

diff --git a/Sources/SwiftDocC/Infrastructure/Diagnostics/Diagnostic.swift b/Sources/SwiftDocC/Infrastructure/Diagnostics/Diagnostic.swift
@@ -8,9 +8,9 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
-import Markdown
-import SymbolKit
+public import Foundation
+public import Markdown
+public import SymbolKit
 
 /// A diagnostic explains a problem or issue that needs the end-user's attention.
 public struct Diagnostic {

diff --git a/Sources/SwiftDocC/Infrastructure/Diagnostics/DiagnosticConsoleWriter.swift b/Sources/SwiftDocC/Infrastructure/Diagnostics/DiagnosticConsoleWriter.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 import Markdown
 
 /// Writes diagnostic messages to a text output stream.

diff --git a/Sources/SwiftDocC/Infrastructure/Diagnostics/DiagnosticFileWriter.swift b/Sources/SwiftDocC/Infrastructure/Diagnostics/DiagnosticFileWriter.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 
 /// A diagnostic consumer that writes detailed diagnostic information to a file.
 ///

diff --git a/Sources/SwiftDocC/Infrastructure/Diagnostics/DiagnosticNote.swift b/Sources/SwiftDocC/Infrastructure/Diagnostics/DiagnosticNote.swift
@@ -8,8 +8,8 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
-import Markdown
+public import Foundation
+public import Markdown
 
 /**
  A diagnostic note is a simple string message that should appear somewhere in a document.

diff --git a/Sources/SwiftDocC/Infrastructure/Diagnostics/Replacement.swift b/Sources/SwiftDocC/Infrastructure/Diagnostics/Replacement.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Markdown
+public import Markdown
 import SymbolKit
 
 /**

diff --git a/Sources/SwiftDocC/Infrastructure/DocumentationBundle.swift b/Sources/SwiftDocC/Infrastructure/DocumentationBundle.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 
 /// A collection of the build inputs for a unit of documentation.
 ///

diff --git a/Sources/SwiftDocC/Infrastructure/DocumentationBundleFileTypes.swift b/Sources/SwiftDocC/Infrastructure/DocumentationBundleFileTypes.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 
 /// A collection of functions to check if a file is one of the documentation bundle files types.
 public enum DocumentationBundleFileTypes {

diff --git a/Sources/SwiftDocC/Infrastructure/DocumentationContext.swift b/Sources/SwiftDocC/Infrastructure/DocumentationContext.swift
@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-import Foundation
+public import Foundation
 import Markdown
 import SymbolKit