1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
//===----------------------------------------------------------------------===//
//
// 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 Foundation
import SKLogging
@_spi(RawSyntax) import SwiftSyntax
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 = nameForSnippet(rawPlaceholder) 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
}
/// Parse a SourceKit placeholder and extract the display name suitable for a
/// LSP snippet.
fileprivate func nameForSnippet(_ text: String) -> String? {
var text = text
return text.withSyntaxText {
guard let data = RawEditorPlaceholderData(syntaxText: $0) else {
return nil
}
return String(syntaxText: data.typeForExpansionText ?? data.displayText)
}
}
|
