Freeze the Mach namespace, as it should only ever be used as a namespace

loffgren · loffgren · commit 13bf719c29fa · 2023-02-10T18:04:55.000-08:00
diff --git a/Sources/System/MachPort.swift b/Sources/System/MachPort.swift
@@ -23,6 +23,7 @@ private func _machPrecondition(
   precondition(kr == expected, file: file, line: line)
 }
 
+@frozen
 public enum Mach {
   @_moveOnly
   public struct Port<RightType: MachPortRight> {

Original file line number	Diff line number	Diff line change
`@@ -23,6 +23,7 @@ private func _machPrecondition(`
`23`	`23`	`precondition(kr == expected, file: file, line: line)`
`24`	`24`	`}`
`25`	`25`
	`26`	`+@frozen`
`26`	`27`	`public enum Mach {`
`27`	`28`	`@_moveOnly`
`28`	`29`	`public struct Port<RightType: MachPortRight> {`