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https://github.com/apple/sourcekit-lsp.git
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08f1595b5b
Instead of returning `nil` to indicate that the position conversion failed, log a fault and perform a best-effort recovery. I think this allows us to perform better recovery and also makes code calling these position conversions a lot simpler because it doesn’t need to make decisions about what to do if position conversions fail.
49 lines
1.9 KiB
Swift
49 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 Foundation
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import LSPLogging
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import LanguageServerProtocol
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import SourceKitD
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import SwiftBasicFormat
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extension SwiftLanguageService {
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public func completion(_ req: CompletionRequest) async throws -> CompletionList {
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let snapshot = try documentManager.latestSnapshot(req.textDocument.uri)
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let completionPos = await adjustPositionToStartOfIdentifier(req.position, in: snapshot)
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let offset = snapshot.utf8Offset(of: completionPos)
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let filterText = String(snapshot.text[snapshot.indexOf(utf8Offset: offset)..<snapshot.index(of: req.position)])
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let options = req.sourcekitlspOptions ?? serverOptions.completionOptions
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let clientSupportsSnippets =
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capabilityRegistry.clientCapabilities.textDocument?.completion?.completionItem?.snippetSupport ?? false
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let buildSettings = await buildSettings(for: snapshot.uri)
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let inferredIndentationWidth = BasicFormat.inferIndentation(of: await syntaxTreeManager.syntaxTree(for: snapshot))
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return try await CodeCompletionSession.completionList(
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sourcekitd: sourcekitd,
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snapshot: snapshot,
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indentationWidth: inferredIndentationWidth,
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completionPosition: completionPos,
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completionUtf8Offset: offset,
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cursorPosition: req.position,
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compileCommand: buildSettings,
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options: options,
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clientSupportsSnippets: clientSupportsSnippets,
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filterText: filterText
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)
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}
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}
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