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a8b61a52d3
This change includes a number of new refactoring code actions that
build on the syntax refactorings for the SwiftRefactor module of swift-syntax:
* Add digit separators to an integer literal, e.g., `1000000` ->
`1_000_000`.
* Remove digit separators from an integer literal, e.g., 1_000_000 ->
1000000.
* Format a raw string literal, e.g., `"Hello \#(world)"` ->
`##"Hello\#(world)"##`
* Migrate to new if let syntax, e.g., `if let x = x { ... }` ->
`if let x { ... }`
* Replace opaque parameters with generic parameters, e.g.,
`func f(p: some P)` --> `func f<T1: P>(p: T1)`.
This is generally easy to do, requiring one conformance to provide a name for the refactoring:
extension AddSeparatorsToIntegerLiteral: SyntaxRefactoringCodeActionProvider {
public static var title: String { "Add digit separators" }
}
77 lines
2.2 KiB
Swift
77 lines
2.2 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 - 2024 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 LanguageServerProtocol
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import SwiftRefactor
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import SwiftSyntax
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// TODO: Make the type IntegerLiteralExprSyntax.Radix conform to CaseEnumerable
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// in swift-syntax.
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extension IntegerLiteralExprSyntax.Radix {
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static var allCases: [Self] = [.binary, .octal, .decimal, .hex]
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}
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/// Syntactic code action provider to convert integer literals between
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/// different bases.
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struct ConvertIntegerLiteral: SyntaxCodeActionProvider {
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static func codeActions(in scope: SyntaxCodeActionScope) -> [CodeAction] {
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guard
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let token = scope.firstToken,
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let integerExpr = token.parent?.as(IntegerLiteralExprSyntax.self),
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let integerValue = Int(
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integerExpr.split().value.filter { $0 != "_" },
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radix: integerExpr.radix.size
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)
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else {
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return []
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}
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var actions = [CodeAction]()
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let currentRadix = integerExpr.radix
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for radix in IntegerLiteralExprSyntax.Radix.allCases {
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guard radix != currentRadix else {
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continue
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}
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//TODO: Add this to swift-syntax?
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let prefix: String
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switch radix {
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case .binary:
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prefix = "0b"
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case .octal:
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prefix = "0o"
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case .hex:
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prefix = "0x"
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case .decimal:
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prefix = ""
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}
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let convertedValue: ExprSyntax =
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"\(raw: prefix)\(raw: String(integerValue, radix: radix.size))"
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let edit = TextEdit(
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range: scope.snapshot.range(of: integerExpr),
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newText: convertedValue.description
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)
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actions.append(
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CodeAction(
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title: "Convert \(integerExpr) to \(convertedValue)",
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kind: .refactorInline,
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edit: WorkspaceEdit(changes: [scope.snapshot.uri: [edit]])
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)
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)
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}
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return actions
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}
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}
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