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The recommended way forward is to use the SyntaxClassifier on the Swift side. By removing the C++ SyntaxClassifier, we can also eliminate the -force-libsyntax-based-processing option that was used to bootstrap incremental parsing and would generate the syntax map from a syntax tree.
81 lines
3.1 KiB
Swift
81 lines
3.1 KiB
Swift
//===--------------------- SwiftLang.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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// This file provides Swift language support by invoking SourceKit internally.
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//===----------------------------------------------------------------------===//
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import Foundation
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enum SourceKitdError: Error, CustomStringConvertible {
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case EditorOpenError(message: String)
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case EditorCloseError(message: String)
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var description: String {
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switch self {
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case .EditorOpenError(let message):
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return "cannot open document: \(message)"
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case .EditorCloseError(let message):
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return "cannot close document: \(message)"
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}
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}
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}
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public class SwiftLang {
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fileprivate static func parse(content: String, name: String, isURL: Bool) throws -> String {
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let Service = SourceKitdService()
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let Request = SourceKitdRequest(uid: .request_EditorOpen)
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if isURL {
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Request.addParameter(.key_SourceFile, value: content)
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} else {
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Request.addParameter(.key_SourceText, value: content)
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}
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Request.addParameter(.key_Name, value: name)
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Request.addParameter(.key_SyntaxTreeTransferMode,
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value: .kind_SyntaxTreeFull)
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Request.addParameter(.key_EnableSyntaxMap, value: 0)
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Request.addParameter(.key_EnableStructure, value: 0)
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Request.addParameter(.key_SyntacticOnly, value: 1)
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// FIXME: SourceKitd error handling.
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let Resp = Service.sendSyn(request: Request)
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if Resp.isError {
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throw SourceKitdError.EditorOpenError(message: Resp.description)
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}
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let CloseReq = SourceKitdRequest(uid: .request_EditorClose)
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CloseReq.addParameter(.key_Name, value: name)
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let CloseResp = Service.sendSyn(request: CloseReq)
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if CloseResp.isError {
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throw SourceKitdError.EditorCloseError(message: CloseResp.description)
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}
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return Resp.value.getString(.key_SerializedSyntaxTree)
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}
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/// Parses the Swift file at the provided URL into a `Syntax` tree in Json
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/// serialization format by querying SourceKitd service. This function isn't
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/// thread safe.
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/// - Parameter url: The URL you wish to parse.
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/// - Returns: The syntax tree in Json format string.
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public static func parse(_ url: URL) throws -> String {
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let Path = url.path
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return try parse(content: Path, name: Path, isURL: true)
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}
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/// Parses a given source buffer into a `Syntax` tree in Json serialization
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/// format by querying SourceKitd service. This function isn't thread safe.
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/// - Parameter source: The source buffer you wish to parse.
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/// - Returns: The syntax tree in Json format string.
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public static func parse(_ source: String) throws -> String {
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return try parse(content: source, name: "foo", isURL: false)
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}
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}
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