Update SwiftSyntax to `fa7ff05` (#4455)

There's a new SwiftParserDiagnostics module and the rewriter visit
function signatures changed.

Package.resolved

@@ -33,7 +33,7 @@
         "repositoryURL": "https://github.com/apple/swift-syntax.git",
         "state": {
           "branch": null,
-          "revision": "60c7037405b3e0ecc4d42805bc46dbcbb947afc0",
+          "revision": "fa7ff05591294db031e3061e704994aa3b89d1bc",
           "version": null
         }
       },

Package.swift

@@ -27,7 +27,7 @@ let package = Package(
     ],
     dependencies: [
         .package(name: "swift-argument-parser", url: "https://github.com/apple/swift-argument-parser.git", .upToNextMinor(from: "1.1.3")),
-        .package(name: "SwiftSyntax", url: "https://github.com/apple/swift-syntax.git", .revision("60c7037405b3e0ecc4d42805bc46dbcbb947afc0")),
+        .package(name: "SwiftSyntax", url: "https://github.com/apple/swift-syntax.git", .revision("fa7ff05591294db031e3061e704994aa3b89d1bc")),
         .package(url: "https://github.com/jpsim/SourceKitten.git", .revision("a9e6df65d8e31e0fa6e8a05ffe40ecd54a645871")),
         .package(url: "https://github.com/jpsim/Yams.git", from: "5.0.1"),
         .package(url: "https://github.com/scottrhoyt/SwiftyTextTable.git", from: "0.9.0"),

Source/SwiftLintFramework/Extensions/SwiftLintFile+Cache.swift

@@ -4,6 +4,7 @@ import Darwin
 import Foundation
 import SourceKittenFramework
 import SwiftParser
+import SwiftParserDiagnostics
 import SwiftSyntax
 
 private typealias FileCacheKey = UUID

Source/SwiftLintFramework/Rules/Idiomatic/RedundantNilCoalescingRule.swift

@@ -54,7 +54,7 @@ private extension RedundantNilCoalescingRule {
             self.disabledRegions = disabledRegions
         }
 
-        override func visit(_ node: ExprListSyntax) -> Syntax {
+        override func visit(_ node: ExprListSyntax) -> ExprListSyntax {
             guard
                 node.count > 2,
                 let lastExpression = node.last,

Source/SwiftLintFramework/Rules/Idiomatic/ShorthandOptionalBindingRule.swift

@@ -111,7 +111,7 @@ private class Rewriter: SyntaxRewriter, ViolationsSyntaxRewriter {
         self.disabledRegions = disabledRegions
     }
 
-    override func visit(_ node: OptionalBindingConditionSyntax) -> Syntax {
+    override func visit(_ node: OptionalBindingConditionSyntax) -> OptionalBindingConditionSyntax {
         guard
             node.isShadowingOptionalBinding,
             !node.isContainedIn(regions: disabledRegions, locationConverter: locationConverter)

Source/SwiftLintFramework/Rules/Idiomatic/ToggleBoolRule.swift

@@ -62,7 +62,7 @@ private extension ToggleBoolRule {
             self.disabledRegions = disabledRegions
         }
 
-        override func visit(_ node: ExprListSyntax) -> Syntax {
+        override func visit(_ node: ExprListSyntax) -> ExprListSyntax {
             guard
                 node.hasToggleBoolViolation,
                 !node.isContainedIn(regions: disabledRegions, locationConverter: locationConverter)

Source/SwiftLintFramework/Rules/Idiomatic/UntypedErrorInCatchRule.swift

@@ -144,7 +144,7 @@ private final class UntypedErrorInCatchRuleRewriter: SyntaxRewriter, ViolationsS
         self.disabledRegions = disabledRegions
     }
 
-    override func visit(_ node: CatchClauseSyntax) -> Syntax {
+    override func visit(_ node: CatchClauseSyntax) -> CatchClauseSyntax {
         guard
             node.catchItems?.count == 1,
             let item = node.catchItems?.first,

Source/SwiftLintFramework/Rules/Lint/AnyObjectProtocolRule.swift

@@ -72,7 +72,7 @@ private extension AnyObjectProtocolRule {
             self.disabledRegions = disabledRegions
         }
 
-        override func visit(_ node: InheritedTypeSyntax) -> Syntax {
+        override func visit(_ node: InheritedTypeSyntax) -> InheritedTypeSyntax {
             let typeName = node.typeName
             guard
                 typeName.is(ClassRestrictionTypeSyntax.self),

Source/SwiftLintFramework/Rules/Lint/LowerACLThanParentRule.swift

@@ -87,7 +87,7 @@ private extension LowerACLThanParentRule {
             self.disabledRegions = disabledRegions
         }
 
-        override func visit(_ node: DeclModifierSyntax) -> Syntax {
+        override func visit(_ node: DeclModifierSyntax) -> DeclModifierSyntax {
             guard
                 node.isHigherACLThanParent,
                 !node.isContainedIn(regions: disabledRegions, locationConverter: locationConverter)

Source/SwiftLintFramework/Rules/Style/ClosureSpacingRule.swift

@@ -82,7 +82,7 @@ private final class ClosureSpacingRuleRewriter: SyntaxRewriter, ViolationsSyntax
 
     override func visit(_ node: ClosureExprSyntax) -> ExprSyntax {
         var node = node
-        node.statements = visit(node.statements).as(CodeBlockItemListSyntax.self)!
+        node.statements = visit(node.statements)
 
         guard
             !node.isContainedIn(regions: disabledRegions, locationConverter: locationConverter),

Source/SwiftLintFramework/Rules/Style/EmptyEnumArgumentsRule.swift

@@ -144,7 +144,7 @@ private extension EmptyEnumArgumentsRule {
             self.disabledRegions = disabledRegions
         }
 
-        override func visit(_ node: CaseItemSyntax) -> Syntax {
+        override func visit(_ node: CaseItemSyntax) -> CaseItemSyntax {
             guard
                 let (violationPosition, newPattern) = node.pattern.emptyEnumArgumentsViolation(rewrite: true),
                 !node.isContainedIn(regions: disabledRegions, locationConverter: locationConverter)
@@ -153,10 +153,10 @@ private extension EmptyEnumArgumentsRule {
             }
 
             correctionPositions.append(violationPosition)
-            return super.visit(Syntax(node.withPattern(newPattern)))
+            return super.visit(node.withPattern(newPattern))
         }
 
-        override func visit(_ node: MatchingPatternConditionSyntax) -> Syntax {
+        override func visit(_ node: MatchingPatternConditionSyntax) -> MatchingPatternConditionSyntax {
             guard
                 let (violationPosition, newPattern) = node.pattern.emptyEnumArgumentsViolation(rewrite: true),
                 !node.isContainedIn(regions: disabledRegions, locationConverter: locationConverter)
@@ -165,7 +165,7 @@ private extension EmptyEnumArgumentsRule {
             }
 
             correctionPositions.append(violationPosition)
-            return super.visit(Syntax(node.withPattern(newPattern)))
+            return super.visit(node.withPattern(newPattern))
         }
     }
 }

Source/SwiftLintFramework/Rules/Style/ProtocolPropertyAccessorsOrderRule.swift

@@ -61,7 +61,7 @@ private extension ProtocolPropertyAccessorsOrderRule {
             self.disabledRegions = disabledRegions
         }
 
-        override func visit(_ node: AccessorBlockSyntax) -> Syntax {
+        override func visit(_ node: AccessorBlockSyntax) -> AccessorBlockSyntax {
             guard
                 node.hasViolation,
                 !node.isContainedIn(regions: disabledRegions, locationConverter: locationConverter)

Source/SwiftLintFramework/Rules/Style/SelfBindingRule.swift

@@ -94,7 +94,7 @@ private final class SelfBindingRuleRewriter: SyntaxRewriter, ViolationsSyntaxRew
         self.disabledRegions = disabledRegions
     }
 
-    override func visit(_ node: OptionalBindingConditionSyntax) -> Syntax {
+    override func visit(_ node: OptionalBindingConditionSyntax) -> OptionalBindingConditionSyntax {
         guard
             let identifierPattern = node.pattern.as(IdentifierPatternSyntax.self),
             identifierPattern.identifier.text != bindIdentifier,

Source/SwiftLintFramework/Rules/Style/TrailingCommaRule.swift

@@ -126,7 +126,7 @@ private extension TrailingCommaRule {
             self.disabledRegions = disabledRegions
         }
 
-        override func visit(_ node: DictionaryElementListSyntax) -> Syntax {
+        override func visit(_ node: DictionaryElementListSyntax) -> DictionaryElementListSyntax {
             guard let lastElement = node.last,
                     !lastElement.isContainedIn(regions: disabledRegions, locationConverter: locationConverter) else {
                 return super.visit(node)
@@ -163,7 +163,7 @@ private extension TrailingCommaRule {
             }
         }
 
-        override func visit(_ node: ArrayElementListSyntax) -> Syntax {
+        override func visit(_ node: ArrayElementListSyntax) -> ArrayElementListSyntax {
             guard let lastElement = node.last,
                   !lastElement.isContainedIn(regions: disabledRegions, locationConverter: locationConverter) else {
                 return super.visit(node)

Source/SwiftLintFramework/Rules/Style/UnneededParenthesesInClosureArgumentRule.swift

@@ -109,7 +109,7 @@ private final class Rewriter: SyntaxRewriter, ViolationsSyntaxRewriter {
         self.disabledRegions = disabledRegions
     }
 
-    override func visit(_ node: ClosureSignatureSyntax) -> Syntax {
+    override func visit(_ node: ClosureSignatureSyntax) -> ClosureSignatureSyntax {
         guard
             let clause = node.input?.as(ParameterClauseSyntax.self),
             !clause.parameterList.contains(where: { $0.type != nil }),

bazel/SwiftSyntax.BUILD

@@ -48,6 +48,7 @@ swift_library(
     deps = [
         ":SwiftBasicFormat",
         ":SwiftParser",
+        ":SwiftParserDiagnostics",
         ":SwiftSyntax",
     ],
 )
@@ -63,12 +64,25 @@ swift_library(
     ],
 )
 
+swift_library(
+    name = "SwiftParserDiagnostics",
+    srcs = glob(["Sources/SwiftParserDiagnostics/**/*.swift"]),
+    module_name = "SwiftParserDiagnostics",
+    deps = [
+        ":SwiftBasicFormat",
+        ":SwiftDiagnostics",
+        ":SwiftParser",
+        ":SwiftSyntax",
+    ],
+)
+
 opt_wrapper(
     name = "optlibs",
     visibility = ["//visibility:public"],
     deps = [
         ":SwiftOperators",
         ":SwiftParser",
+        ":SwiftParserDiagnostics",
         ":SwiftSyntax",
         ":SwiftSyntaxBuilder",
     ],

bazel/repos.bzl

@@ -20,10 +20,10 @@ def swiftlint_repos():
 
     http_archive(
         name = "com_github_apple_swift_syntax",
-        sha256 = "a4b0527ff3d0f4d002c85b246fde52552d2cfbbfa2329a298a2ee44aa66ded9a",
+        sha256 = "6962cd269321a23a2e4b3738a870afe30b2c99dfb48f53b9898bdab4e2a8d4d7",
         build_file = "@SwiftLint//bazel:SwiftSyntax.BUILD",
-        strip_prefix = "swift-syntax-60c7037405b3e0ecc4d42805bc46dbcbb947afc0",
+        strip_prefix = "swift-syntax-fa7ff05591294db031e3061e704994aa3b89d1bc",
-        url = "https://github.com/apple/swift-syntax/archive/60c7037405b3e0ecc4d42805bc46dbcbb947afc0.tar.gz",
+        url = "https://github.com/apple/swift-syntax/archive/fa7ff05591294db031e3061e704994aa3b89d1bc.tar.gz",
     )
 
     http_archive(