Swift Utils: make StringRef matchable in patterns

eeckstein · eeckstein · commit b5b055adcbc2 · 2022-10-20T09:20:28.000+02:00
By adding a `~=` operator with `StaticString`
diff --git a/SwiftCompilerSources/Sources/Basic/Utils.swift b/SwiftCompilerSources/Sources/Basic/Utils.swift
@@ -76,6 +76,8 @@ public struct StringRef : CustomStringConvertible, NoReflectionChildren {
   }
   
   public static func !=(lhs: StringRef, rhs: StaticString) -> Bool { !(lhs == rhs) }
+
+  public static func ~=(pattern: StaticString, value: StringRef) -> Bool { value == pattern }
 }
 
 //===----------------------------------------------------------------------===//

Original file line number	Diff line number	Diff line change
`@@ -76,6 +76,8 @@ public struct StringRef : CustomStringConvertible, NoReflectionChildren {`
`76`	`76`	`}`
`77`	`77`
`78`	`78`	`public static func !=(lhs: StringRef, rhs: StaticString) -> Bool { !(lhs == rhs) }`
	`79`	`+`
	`80`	`+ public static func ~=(pattern: StaticString, value: StringRef) -> Bool { value == pattern }`
`79`	`81`	`}`
`80`	`82`
`81`	`83`	`//===----------------------------------------------------------------------===//`