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1f02b95e55
This generally seems like the cleaner design because `SourceKitServer` is actually able to semantically inspect the message and decide whether it can be handled concurrently with other requests.
81 lines
2.6 KiB
Swift
81 lines
2.6 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 - 2018 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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public protocol MessageType: Codable {}
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/// `RequestType` with no associated type or same-type requirements. Most users should prefer
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/// `RequestType`.
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public protocol _RequestType: MessageType {
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/// The name of the request.
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static var method: String { get }
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/// *Implementation detail*. Dispatch `self` to the given handler and reply on `connection`.
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/// Only needs to be declared as a protocol requirement of `_RequestType` so we can call the implementation on `RequestType` from the underscored type.
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func _handle(
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_ handler: MessageHandler,
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id: RequestID,
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connection: Connection,
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reply: @escaping (LSPResult<ResponseType>, RequestID) -> Void
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)
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}
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/// A request, which must have a unique `method` name as well as an associated response type.
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public protocol RequestType: _RequestType {
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/// The type of of the response to this request.
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associatedtype Response: ResponseType
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}
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/// A notification, which must have a unique `method` name.
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public protocol NotificationType: MessageType {
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/// The name of the request.
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static var method: String { get }
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}
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/// A response.
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public protocol ResponseType: MessageType {}
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extension RequestType {
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public func _handle(
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_ handler: MessageHandler,
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id: RequestID,
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connection: Connection,
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reply: @escaping (LSPResult<ResponseType>, RequestID) -> Void
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) {
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handler.handle(self, id: id, from: ObjectIdentifier(connection)) { response in
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reply(response.map({ $0 as ResponseType }), id)
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}
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}
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}
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extension NotificationType {
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public func _handle(_ handler: MessageHandler, connection: Connection) {
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handler.handle(self, from: ObjectIdentifier(connection))
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}
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}
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/// A `textDocument/*` notification, which takes a text document identifier
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/// indicating which document it operates in or on.
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public protocol TextDocumentNotification: NotificationType {
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var textDocument: TextDocumentIdentifier { get }
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}
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/// A `textDocument/*` request, which takes a text document identifier
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/// indicating which document it operates in or on.
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public protocol TextDocumentRequest: RequestType {
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var textDocument: TextDocumentIdentifier { get }
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}
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