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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2019 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 LSPLogging
@_spi(SourceKitLSP) import SwiftRefactor
func rewriteSourceKitPlaceholders(in string: String, clientSupportsSnippets: Bool) -> String {
var result = string
var index = 1
while let start = result.range(of: "<#") {
guard let end = result[start.upperBound...].range(of: "#>") else {
logger.fault("Invalid placeholder in \(string)")
return string
}
let rawPlaceholder = String(result[start.lowerBound..<end.upperBound])
guard let displayName = EditorPlaceholderData(text: rawPlaceholder)?.nameForSnippet else {
logger.fault("Failed to decode placeholder \(rawPlaceholder) in \(string)")
return string
}
let snippet = clientSupportsSnippets ? "${\(index):\(displayName)}" : ""
result.replaceSubrange(start.lowerBound..<end.upperBound, with: snippet)
index += 1
}
return result
}
fileprivate extension EditorPlaceholderData {
var nameForSnippet: Substring {
switch self {
case .basic(text: let text): return text
case .typed(text: let text, type: _): return text
}
}
}
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