Update for 0.51.14 release

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Change Log
 
+## [0.51.14](https://github.com/nicklockwood/SwiftFormat/releases/tag/0.51.14) (2023-08-05)
+
+- Fixed regression in `unusedArguments` rule that caused used parameters to be marked unused
+- Fixed some additional cases where regex literal was mistaken for `/` operator
+- Vertical tab and form feed characters in source file no longer cause spurious errors
+
 ## [0.51.13](https://github.com/nicklockwood/SwiftFormat/releases/tag/0.51.13) (2023-07-18)
 
 - Fixed bug where importing a type caused the `redundantSelf` rule to be silently disabled

Sources/Formatter.swift

@@ -2,7 +2,7 @@
 //  Formatter.swift
 //  SwiftFormat
 //
-//  Version 0.51.13
+//  Version 0.51.14
 //
 //  Created by Nick Lockwood on 12/08/2016.
 //  Copyright 2016 Nick Lockwood

Sources/Rules.swift

@@ -4083,7 +4083,7 @@ public struct _FormatRules {
                     wasDeclaration = false
                 }
                 let token = formatter.tokens[i]
-                outer: switch token {
+                switch token {
                 case .keyword("guard"):
                     isGuard = true
                 case .keyword("let"), .keyword("var"), .keyword("func"), .keyword("for"):
@@ -4103,14 +4103,8 @@ public struct _FormatRules {
                        formatter.currentScope(at: i) == .startOfScope("[")
                     {
                         if isDeclaration {
-                            switch formatter.next(.nonSpaceOrCommentOrLinebreak, after: i) {
-                            case .endOfScope(")")?, .operator("=", .infix)?,
-                                 .delimiter(",")? where !isConditional || formatter.currentScope(at: i) == .startOfScope("("):
-                                tempLocals.insert(name)
-                                break outer
-                            default:
-                                break
-                            }
+                            tempLocals.insert(name)
+                            break
                         }
                         argNames.remove(at: index)
                         associatedData.remove(at: index)

Sources/SwiftFormat.swift

@@ -32,7 +32,7 @@
 import Foundation
 
 /// The current SwiftFormat version
-let swiftFormatVersion = "0.51.13"
+let swiftFormatVersion = "0.51.14"
 public let version = swiftFormatVersion
 
 /// The standard SwiftFormat config file name

Sources/Tokenizer.swift

@@ -2,7 +2,7 @@
 //  Tokenizer.swift
 //  SwiftFormat
 //
-//  Version 0.51.13
+//  Version 0.51.14
 //
 //  Created by Nick Lockwood on 11/08/2016.
 //  Copyright 2016 Nick Lockwood
@@ -551,10 +551,6 @@ extension UnicodeScalar {
             return false
         }
     }
-
-    var isSpaceOrLinebreak: Bool {
-        isSpace || "\n\r\u{000B}\u{000C}".unicodeScalars.contains(self)
-    }
 }
 
 // Workaround for horribly slow String.UnicodeScalarView.Subsequence perf
@@ -732,7 +728,7 @@ private extension UnicodeScalarView {
     }
 
     mutating func readToEndOfToken() -> String {
-        readCharacters { !$0.isSpaceOrLinebreak } ?? ""
+        readCharacters { !$0.isSpace && !"\n\r".unicodeScalars.contains($0) } ?? ""
     }
 }
 
@@ -742,18 +738,13 @@ private extension UnicodeScalarView {
     }
 
     mutating func parseLineBreak() -> Token? {
-        switch first {
-        case "\r":
-            removeFirst()
+        if read("\r") {
             if read("\n") {
                 return .linebreak("\r\n", 0)
             }
             return .linebreak("\r", 0)
-        case "\n", "\u{000B}", "\u{000C}":
-            return .linebreak(String(removeFirst()), 0)
-        default:
-            return nil
         }
+        return read("\n") ? .linebreak("\n", 0) : nil
     }
 
     mutating func parseDelimiter() -> Token? {
@@ -1476,10 +1467,8 @@ public func tokenize(_ source: String) -> [Token] {
             return
         }
         guard let prevNonSpaceIndex = index(of: .nonSpaceOrCommentOrLinebreak, before: i) else {
-            if string == "/" {
-                tokens[i] = .startOfScope("/")
-            } else if tokens.count > i + 1 {
-                tokens[i] = .operator(string, .prefix)
+            if tokens.count > i + 1 {
+                tokens[i] = string == "/" ? .startOfScope("/") : .operator(string, .prefix)
             }
             return
         }
@@ -1549,8 +1538,11 @@ public func tokenize(_ source: String) -> [Token] {
             guard let nextNonSpaceToken =
                 index(of: .nonSpaceOrCommentOrLinebreak, after: i).map({ tokens[$0] })
             else {
+                if prevToken.isLvalue {
+                    type = .postfix
+                    break
+                }
                 if token == .operator("/", .none),
-                   prevToken.isSpaceOrLinebreak ||
                    prevNonSpaceToken.isOperator(ofType: .infix) || (
                        prevNonSpaceToken.isUnwrapOperator &&
                            prevNonSpaceIndex > 0 &&
@@ -1562,9 +1554,6 @@ public func tokenize(_ source: String) -> [Token] {
                    ].contains(prevNonSpaceToken)
                 {
                     tokens[i] = .startOfScope("/")
-                } else if prevToken.isLvalue {
-                    type = .postfix
-                    break
                 }
                 return
             }
@@ -1875,12 +1864,6 @@ public func tokenize(_ source: String) -> [Token] {
         token = tokens[count - 1]
         switch token {
         case .startOfScope("/"):
-            if let next = characters.first, next.isSpaceOrLinebreak {
-                // Misidentified as regex
-                token = .operator("/", .none)
-                tokens[count - 1] = token
-                return
-            }
             scopeIndexStack.append(count - 1)
             let start = characters
             processStringBody(regex: true, hashCount: 0)

SwiftFormat.podspec.json

@@ -1,6 +1,6 @@
 {
   "name": "SwiftFormat",
-  "version": "0.51.13",
+  "version": "0.51.14",
   "license": {
     "type": "MIT",
     "file": "LICENSE.md"
@@ -10,7 +10,7 @@
   "authors": "Nick Lockwood",
   "source": {
     "git": "https://github.com/nicklockwood/SwiftFormat.git",
-    "tag": "0.51.13"
+    "tag": "0.51.14"
   },
   "default_subspecs": "Core",
   "subspecs": [

SwiftFormat.xcodeproj/project.pbxproj

@@ -1111,7 +1111,7 @@
 					"@loader_path/Frameworks",
 				);
 				MACOSX_DEPLOYMENT_TARGET = 10.14;
-				MARKETING_VERSION = 0.51.13;
+				MARKETING_VERSION = 0.51.14;
 				MODULE_VERIFIER_SUPPORTED_LANGUAGES = "objective-c objective-c++";
 				MODULE_VERIFIER_SUPPORTED_LANGUAGE_STANDARDS = "gnu99 gnu++11";
 				PRODUCT_BUNDLE_IDENTIFIER = com.charcoaldesign.SwiftFormat;
@@ -1144,7 +1144,7 @@
 					"@loader_path/Frameworks",
 				);
 				MACOSX_DEPLOYMENT_TARGET = 10.14;
-				MARKETING_VERSION = 0.51.13;
+				MARKETING_VERSION = 0.51.14;
 				MODULE_VERIFIER_SUPPORTED_LANGUAGES = "objective-c objective-c++";
 				MODULE_VERIFIER_SUPPORTED_LANGUAGE_STANDARDS = "gnu99 gnu++11";
 				PRODUCT_BUNDLE_IDENTIFIER = com.charcoaldesign.SwiftFormat;
@@ -1251,7 +1251,7 @@
 					"@executable_path/../Frameworks",
 				);
 				MACOSX_DEPLOYMENT_TARGET = 10.14;
-				MARKETING_VERSION = 0.51.13;
+				MARKETING_VERSION = 0.51.14;
 				PRODUCT_BUNDLE_IDENTIFIER = "com.charcoaldesign.SwiftFormat-for-Xcode";
 				PRODUCT_NAME = "SwiftFormat for Xcode";
 				PROVISIONING_PROFILE_SPECIFIER = "";
@@ -1282,7 +1282,7 @@
 					"@executable_path/../Frameworks",
 				);
 				MACOSX_DEPLOYMENT_TARGET = 10.14;
-				MARKETING_VERSION = 0.51.13;
+				MARKETING_VERSION = 0.51.14;
 				PRODUCT_BUNDLE_IDENTIFIER = "com.charcoaldesign.SwiftFormat-for-Xcode";
 				PRODUCT_NAME = "SwiftFormat for Xcode";
 				PROVISIONING_PROFILE_SPECIFIER = "";
@@ -1310,7 +1310,7 @@
 					"@executable_path/../../../../Frameworks",
 				);
 				MACOSX_DEPLOYMENT_TARGET = 10.14;
-				MARKETING_VERSION = 0.51.13;
+				MARKETING_VERSION = 0.51.14;
 				PRODUCT_BUNDLE_IDENTIFIER = "com.charcoaldesign.SwiftFormat-for-Xcode.SourceEditorExtension";
 				PRODUCT_NAME = SwiftFormat;
 				PROVISIONING_PROFILE_SPECIFIER = "";
@@ -1340,7 +1340,7 @@
 					"@executable_path/../../../../Frameworks",
 				);
 				MACOSX_DEPLOYMENT_TARGET = 10.14;
-				MARKETING_VERSION = 0.51.13;
+				MARKETING_VERSION = 0.51.14;
 				PRODUCT_BUNDLE_IDENTIFIER = "com.charcoaldesign.SwiftFormat-for-Xcode.SourceEditorExtension";
 				PRODUCT_NAME = SwiftFormat;
 				PROVISIONING_PROFILE_SPECIFIER = "";

Tests/RulesTests+Linebreaks.swift

@@ -10,30 +10,52 @@ import XCTest
 @testable import SwiftFormat
 
 class LinebreakTests: RulesTests {
-    // MARK: - linebreaks
+    // MARK: - trailingSpace
 
-    func testCarriageReturn() {
-        let input = "foo\rbar"
+    // truncateBlankLines = true
+
+    func testTrailingSpace() {
+        let input = "foo  \nbar"
         let output = "foo\nbar"
-        testFormatting(for: input, output, rule: FormatRules.linebreaks)
+        testFormatting(for: input, output, rule: FormatRules.trailingSpace)
     }
 
-    func testCarriageReturnLinefeed() {
-        let input = "foo\r\nbar"
-        let output = "foo\nbar"
-        testFormatting(for: input, output, rule: FormatRules.linebreaks)
+    func testTrailingSpaceAtEndOfFile() {
+        let input = "foo  "
+        let output = "foo"
+        testFormatting(for: input, output, rule: FormatRules.trailingSpace)
     }
 
-    func testVerticalTab() {
-        let input = "foo\u{000B}bar"
-        let output = "foo\nbar"
-        testFormatting(for: input, output, rule: FormatRules.linebreaks)
+    func testTrailingSpaceInMultilineComments() {
+        let input = "/* foo  \n bar  */"
+        let output = "/* foo\n bar  */"
+        testFormatting(for: input, output, rule: FormatRules.trailingSpace)
     }
 
-    func testFormfeed() {
-        let input = "foo\u{000C}bar"
-        let output = "foo\nbar"
-        testFormatting(for: input, output, rule: FormatRules.linebreaks)
+    func testTrailingSpaceInSingleLineComments() {
+        let input = "// foo  \n// bar  "
+        let output = "// foo\n// bar"
+        testFormatting(for: input, output, rule: FormatRules.trailingSpace)
+    }
+
+    func testTruncateBlankLine() {
+        let input = "foo {\n    // bar\n    \n    // baz\n}"
+        let output = "foo {\n    // bar\n\n    // baz\n}"
+        testFormatting(for: input, output, rule: FormatRules.trailingSpace)
+    }
+
+    func testTrailingSpaceInArray() {
+        let input = "let foo = [\n    1,\n    \n    2,\n]"
+        let output = "let foo = [\n    1,\n\n    2,\n]"
+        testFormatting(for: input, output, rule: FormatRules.trailingSpace, exclude: ["redundantSelf"])
+    }
+
+    // truncateBlankLines = false
+
+    func testNoTruncateBlankLine() {
+        let input = "foo {\n    // bar\n    \n    // baz\n}"
+        let options = FormatOptions(truncateBlankLines: false)
+        testFormatting(for: input, rule: FormatRules.trailingSpace, options: options)
     }
 
     // MARK: - consecutiveBlankLines

Tests/RulesTests+Redundancy.swift

@@ -6482,34 +6482,6 @@ class RedundancyTests: RulesTests {
         testFormatting(for: input, output, rule: FormatRules.unusedArguments)
     }
 
-    func testClosureArgumentUsedInGuardNotRemoved() {
-        let input = """
-        bar(for: quux) { _, _, foo in
-            guard
-                let baz = quux.baz,
-                foo.contains(where: { $0.baz == baz })
-            else {
-                return
-            }
-        }
-        """
-        testFormatting(for: input, rule: FormatRules.unusedArguments)
-    }
-
-    func testClosureArgumentUsedInIfNotRemoved() {
-        let input = """
-        foo = { reservations, _ in
-            if let reservations, eligibleToShow(
-                reservations,
-                accountService: accountService
-            ) {
-                coordinator.startFlow()
-            }
-        }
-        """
-        testFormatting(for: input, rule: FormatRules.unusedArguments)
-    }
-
     // init
 
     func testParameterUsedInInit() {
@@ -7095,23 +7067,6 @@ class RedundancyTests: RulesTests {
         testFormatting(for: input, output, rule: FormatRules.unusedArguments)
     }
 
-    func testFunctionArgumentUsedInGuardNotRemoved() {
-        let input = """
-        func scrollViewDidEndDecelerating(_ visibleDayRange: DayRange) {
-            guard
-                store.state.request.isIdle,
-                let nextDayToLoad = store.state.request.nextCursor?.lowerBound,
-                visibleDayRange.upperBound.distance(to: nextDayToLoad) < 30
-            else {
-                return
-            }
-
-            store.handle(.loadNext)
-        }
-        """
-        testFormatting(for: input, rule: FormatRules.unusedArguments)
-    }
-
     // functions (closure-only)
 
     func testNoMarkFunctionArgument() {