Files
sourcekit-lsp/Sources/SKCore/BuildSystem.swift
Alex Hoppen a799da39aa Implement a syntactic workspace-wide test index
This workspace-wide syntactic test index is used for two purposes:
- It is used for XCTests instead of the semantic index for files that have on-disk or in-memory modifications to files
- It is uses for swift-testing tests, which are only discovered syntactically.

rdar://119191037
2024-04-23 09:25:31 -07:00

106 lines
4.5 KiB
Swift

//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2020 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 BuildServerProtocol
import LanguageServerProtocol
import struct TSCBasic.AbsolutePath
/// Defines how well a `BuildSystem` can handle a file with a given URI.
public enum FileHandlingCapability: Comparable, Sendable {
/// The build system can't handle the file at all
case unhandled
/// The build system has fallback build settings for the file
case fallback
/// The build system knows how to handle the file
case handled
}
/// Provider of FileBuildSettings and other build-related information.
///
/// The primary role of the build system is to answer queries for
/// FileBuildSettings and to notify its delegate when they change. The
/// BuildSystem is also the source of related information, such as where the
/// index datastore is located.
///
/// For example, a SwiftPMWorkspace provides compiler arguments for the files
/// contained in a SwiftPM package root directory.
public protocol BuildSystem: AnyObject, Sendable {
/// The root of the project that this build system manages. For example, for SwiftPM packages, this is the folder
/// containing Package.swift. For compilation databases it is the root folder based on which the compilation database
/// was found.
var projectRoot: AbsolutePath { get async }
/// The path to the raw index store data, if any.
var indexStorePath: AbsolutePath? { get async }
/// The path to put the index database, if any.
var indexDatabasePath: AbsolutePath? { get async }
/// Path remappings for remapping index data for local use.
var indexPrefixMappings: [PathPrefixMapping] { get async }
/// Delegate to handle any build system events such as file build settings initial reports as well as changes.
///
/// The build system must not retain the delegate because the delegate can be the `BuildSystemManager`, which could
/// result in a retain cycle `BuildSystemManager` -> `BuildSystem` -> `BuildSystemManager`.
var delegate: BuildSystemDelegate? { get async }
/// Set the build system's delegate.
///
/// - Note: Needed so we can set the delegate from a different actor isolation
/// context.
func setDelegate(_ delegate: BuildSystemDelegate?) async
/// Retrieve build settings for the given document with the given source
/// language.
///
/// Returns `nil` if the build system can't provide build settings for this
/// file or if it hasn't computed build settings for the file yet.
func buildSettings(for document: DocumentURI, language: Language) async throws -> FileBuildSettings?
/// Register the given file for build-system level change notifications, such
/// as command line flag changes, dependency changes, etc.
///
/// IMPORTANT: When first receiving a register request, the `BuildSystem` MUST asynchronously
/// inform its delegate of any initial settings for the given file via the
/// `fileBuildSettingsChanged` method, even if unavailable.
func registerForChangeNotifications(for: DocumentURI) async
/// Unregister the given file for build-system level change notifications,
/// such as command line flag changes, dependency changes, etc.
func unregisterForChangeNotifications(for: DocumentURI) async
/// Called when files in the project change.
func filesDidChange(_ events: [FileEvent]) async
func fileHandlingCapability(for uri: DocumentURI) async -> FileHandlingCapability
/// Returns the list of files that might contain test cases.
///
/// The returned file list is an over-approximation. It might contain tests from non-test targets or files that don't
/// actually contain any tests. Keeping this list as minimal as possible helps reduce the amount of work that the
/// syntactic test indexer needs to perform.
func testFiles() async -> [DocumentURI]
/// Adds a callback that should be called when the value returned by `testFiles()` changes.
///
/// The callback might also be called without an actual change to `testFiles`.
func addTestFilesDidChangeCallback(_ callback: @Sendable @escaping () async -> Void) async
}
public let buildTargetsNotSupported =
ResponseError.methodNotFound(BuildTargets.method)