Add initializer without rawValue argument name. (#61)

pointfreeco · Nov 16, 2022 · 33f44ce · 33f44ce
1 parent a375f1f
commit 33f44ce
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diff --git a/Sources/Tagged/Tagged.swift b/Sources/Tagged/Tagged.swift
@@ -6,6 +6,10 @@ public struct Tagged<Tag, RawValue> {
     self.rawValue = rawValue
   }
 
+  public init(_ rawValue: RawValue) {
+    self.rawValue = rawValue
+  }
+
   public func map<B>(_ f: (RawValue) -> B) -> Tagged<Tag, B> {
     return .init(rawValue: f(self.rawValue))
   }

diff --git a/Tests/TaggedTests/TaggedTests.swift b/Tests/TaggedTests/TaggedTests.swift
@@ -5,6 +5,12 @@ enum Tag {}
 struct Unit: Error {}
 
 final class TaggedTests: XCTestCase {
+  func testInit() {
+    let int1 = Tagged<Self, Int>(rawValue: 42)
+    let int2 = Tagged<Self, Int>(1729)
+    XCTAssertNotEqual(int1, int2)
+  }
+
   func testCustomStringConvertible() {
     XCTAssertEqual("1", Tagged<Tag, Int>(rawValue: 1).description)
   }