mirror of
https://github.com/apple/sourcekit-lsp.git
synced 2026-06-24 12:21:58 +02:00
Rintaro Ishizaki
64aa354caf
When the client opts in to `workspace/tests/refresh` or `workspace/playgrounds/refresh` via experimental client capabilities, SourceKit-LSP now maintains a proactive cache of the current test and playground lists and sends the corresponding `workspace/.../refresh` notification whenever the cache changes. `workspaceTests()` / `workspacePlaygrounds()` then serve subsequent fetch requests directly from the cache. Add `EntryPointManager`: runs background scans, stores the results, fires callbacks on changes: - Start scanning when build targets are updated including initial updates, any watched files are changed, and index is updated. - Send '/refresh' server initiated requests when the cache has changed. - Coalesces rapid invalidations by cancelling any in-flight refresh task. Also: - Simplify `SourceKitIndexDelegate` from an `actor` with `AtomicInt32` to a plain `class`, since it is only called from IndexStoreDB's internal serial dispatch queue.
59 lines
1.9 KiB
Swift
59 lines
1.9 KiB
Swift
//===----------------------------------------------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2020 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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import Dispatch
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import IndexStoreDB
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@_spi(SourceKitLSP) import LanguageServerProtocolExtensions
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@_spi(SourceKitLSP) import SKLogging
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import SwiftExtensions
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@_spi(SourceKitLSP) import ToolsProtocolsSwiftExtensions
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/// `IndexDelegate` for the SourceKit workspace.
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class SourceKitIndexDelegate: IndexDelegate {
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let callback: @Sendable () async -> Void
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/// The count of pending unit events. Whenever this transitions to 0, it represents a time where
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/// the index finished processing known events. Of course, that may have already changed by the
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/// time we are notified.
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var pendingUnitCount = 0
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package init(callback: @escaping @Sendable () async -> Void) {
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self.callback = callback
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}
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package func processingAddedPending(_ count: Int) {
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pendingUnitCount += count
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}
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package func processingCompleted(_ count: Int) {
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pendingUnitCount -= count
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if pendingUnitCount == 0 {
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indexChanged()
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}
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if pendingUnitCount < 0 {
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// Technically this is not data race safe because `pendingUnitCount` might change between the check and us setting
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// it to 0. But then, this should never happen anyway, so it's fine.
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logger.fault("pendingUnitCount dropped below zero: \(self.pendingUnitCount)")
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pendingUnitCount = 0
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indexChanged()
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}
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}
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private func indexChanged() {
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Task { [callback] in
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logger.debug("IndexStoreDB changed")
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await callback()
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}
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}
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}
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