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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2020 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
import Foundation
import LanguageServerProtocolExtensions
import SwiftExtensions
import TSCExtensions
import struct TSCBasic.AbsolutePath
import class TSCBasic.Process
#if compiler(>=6)
package import LanguageServerProtocol
package import SKOptions
#else
import LanguageServerProtocol
import SKOptions
#endif
/// The path to the SDK.
private let sdkpath: AbsolutePath? = {
guard Platform.current == .darwin else { return nil }
return try? AbsolutePath(
validating: Process.checkNonZeroExit(args: "/usr/bin/xcrun", "--show-sdk-path", "--sdk", "macosx")
.trimmingCharacters(in: .whitespacesAndNewlines)
)
}()
package func fallbackBuildSettings(
for uri: DocumentURI,
language: Language,
options: SourceKitLSPOptions.FallbackBuildSystemOptions
) -> FileBuildSettings? {
let args: [String]
switch language {
case .swift:
args = fallbackBuildSettingsSwift(for: uri, options: options)
case .c, .cpp, .objective_c, .objective_cpp:
args = fallbackBuildSettingsClang(for: uri, language: language, options: options)
default:
return nil
}
return FileBuildSettings(compilerArguments: args, workingDirectory: nil, isFallback: true)
}
private func fallbackBuildSettingsSwift(
for uri: DocumentURI,
options: SourceKitLSPOptions.FallbackBuildSystemOptions
) -> [String] {
var args: [String] = options.swiftCompilerFlags ?? []
if let sdkpath = AbsolutePath(validatingOrNil: options.sdk) ?? sdkpath, !args.contains("-sdk") {
args += ["-sdk", sdkpath.pathString]
}
args.append(uri.pseudoPath)
return args
}
private func fallbackBuildSettingsClang(
for uri: DocumentURI,
language: Language,
options: SourceKitLSPOptions.FallbackBuildSystemOptions
) -> [String] {
var args: [String] = []
switch language {
case .c:
args += options.cCompilerFlags ?? []
case .cpp:
args += options.cxxCompilerFlags ?? []
default:
break
}
if let sdkpath = AbsolutePath(validatingOrNil: options.sdk) ?? sdkpath, !args.contains("-isysroot") {
args += [
"-isysroot",
sdkpath.pathString,
]
}
args.append(uri.pseudoPath)
return args
}
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