From d1ddd524b2e26fa030d554fd84f8a58ddc60dc31 Mon Sep 17 00:00:00 2001
From: cnkwocha <ci_nkwocha@apple.com>
Date: Wed, 4 Dec 2024 10:45:45 +0000
Subject: [PATCH 1/5] Enable strict concurrency

Motivation:

To catch potential data races at build time.

Modifications:

- Enable strict concurrency in Package.swift. (No further modifications were made as no warnings/errors were thrown.)

Result:

Strict concurrency adoption.
---
 Package.swift | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Package.swift b/Package.swift
index dacc987..80da2b4 100644
--- a/Package.swift
+++ b/Package.swift
@@ -45,3 +45,9 @@ let package = Package(
         ),
     ]
 )
+
+for target in package.targets {
+    var settings = target.swiftSettings ?? []
+    settings.append(.enableExperimentalFeature("StrictConcurrency=complete"))
+    target.swiftSettings = settings
+}

From 85245dd2404341d20a4f2cf6f670fbcd551e286a Mon Sep 17 00:00:00 2001
From: cnkwocha <ci_nkwocha@apple.com>
Date: Wed, 4 Dec 2024 11:21:23 +0000
Subject: [PATCH 2/5] Add `Sendable` conformance to `StructuredFieldType`

---
 Sources/StructuredFieldValues/StructuredFieldValue.swift | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Sources/StructuredFieldValues/StructuredFieldValue.swift b/Sources/StructuredFieldValues/StructuredFieldValue.swift
index ad1370d..c9b3324 100644
--- a/Sources/StructuredFieldValues/StructuredFieldValue.swift
+++ b/Sources/StructuredFieldValues/StructuredFieldValue.swift
@@ -22,7 +22,7 @@ public protocol StructuredFieldValue: Codable {
 }
 
 /// The kinds of header fields used in HTTP Structured Headers.
-public enum StructuredFieldType {
+public enum StructuredFieldType: Sendable {
     /// An item field consists of a single item, optionally with parameters.
     case item
 

From e3f15afecf4218c6d290d385e55e027323b0d02d Mon Sep 17 00:00:00 2001
From: cnkwocha <ci_nkwocha@apple.com>
Date: Wed, 4 Dec 2024 13:33:03 +0000
Subject: [PATCH 3/5] Copy over `CommandLine.arguments` instead of referencing

---
 Sources/sh-parser/main.swift | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Sources/sh-parser/main.swift b/Sources/sh-parser/main.swift
index 54a1366..0c00063 100644
--- a/Sources/sh-parser/main.swift
+++ b/Sources/sh-parser/main.swift
@@ -21,8 +21,9 @@ struct Flags {
     init() {
         // Default to item
         self.headerType = .item
+        let arguments = CommandLine.arguments
 
-        for argument in CommandLine.arguments.dropFirst() {
+        for argument in arguments.dropFirst() {
             switch argument {
             case "--dictionary":
                 self.headerType = .dictionary

From b694b362714e87000598fea45829376968f82eae Mon Sep 17 00:00:00 2001
From: cnkwocha <ci_nkwocha@apple.com>
Date: Wed, 4 Dec 2024 15:59:46 +0000
Subject: [PATCH 4/5] Mark `Flags` as `Sendable`

---
 Sources/sh-parser/main.swift | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Sources/sh-parser/main.swift b/Sources/sh-parser/main.swift
index 0c00063..1b352d5 100644
--- a/Sources/sh-parser/main.swift
+++ b/Sources/sh-parser/main.swift
@@ -15,7 +15,7 @@
 import Foundation
 import RawStructuredFieldValues
 
-struct Flags {
+struct Flags: Sendable {
     var headerType: HeaderType
 
     init() {

From 8f0c94c7bded14d1c18538795c3bc24cddfcc3a0 Mon Sep 17 00:00:00 2001
From: cnkwocha <ci_nkwocha@apple.com>
Date: Wed, 4 Dec 2024 17:03:14 +0000
Subject: [PATCH 5/5] Swap concurrency-unsafe `CommandLine.arguments` with
 `ProcessInfo.processInfo.arguments`

---
 Sources/sh-parser/main.swift | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Sources/sh-parser/main.swift b/Sources/sh-parser/main.swift
index 1b352d5..21f305c 100644
--- a/Sources/sh-parser/main.swift
+++ b/Sources/sh-parser/main.swift
@@ -15,13 +15,13 @@
 import Foundation
 import RawStructuredFieldValues
 
-struct Flags: Sendable {
+struct Flags {
     var headerType: HeaderType
 
     init() {
         // Default to item
         self.headerType = .item
-        let arguments = CommandLine.arguments
+        let arguments = ProcessInfo.processInfo.arguments
 
         for argument in arguments.dropFirst() {
             switch argument {