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This defines away an entire class of data races if delegate callbacks are delivered out-of-order. If we aren’t providing the new build settings in the delegate callback, then it doesn’t matter if two `fileBuildSettingsChanged` calls change order since they don’t carry any state.
39 lines
1.7 KiB
Swift
39 lines
1.7 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 - 2019 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 BuildServerProtocol
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import LanguageServerProtocol
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/// Handles build system events, such as file build settings changes.
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public protocol BuildSystemDelegate: AnyObject {
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/// Notify the delegate that the build targets have changed.
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///
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/// The callee should request new sources and outputs for the build targets of
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/// interest.
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func buildTargetsChanged(_ changes: [BuildTargetEvent]) async
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/// Notify the delegate that the given files' build settings have changed.
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func fileBuildSettingsChanged(_ changedFiles: Set<DocumentURI>) async
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/// Notify the delegate that the dependencies of the given files have changed
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/// and that ASTs may need to be refreshed. If the given set is empty, assume
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/// that all watched files are affected.
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///
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/// The callee should refresh ASTs unless it is able to determine that a
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/// refresh is not necessary.
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func filesDependenciesUpdated(_ changedFiles: Set<DocumentURI>) async
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/// Notify the delegate that the file handling capability of this build system
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/// for some file has changed. The delegate should discard any cached file
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/// handling capability.
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func fileHandlingCapabilityChanged() async
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}
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