From 3ffc3fc8feb5fde766f5f44fd06ebc030f0721f3 Mon Sep 17 00:00:00 2001
From: Stephen Celis <stephen.celis@gmail.com>
Date: Sun, 31 Mar 2019 13:41:49 -0400
Subject: [PATCH] Swift 4 (#54)

* Swift 4 Experiment

* Test

* Test

* Bump

* Bump

* Fix
---
 Carthage/Checkouts/swift-snapshot-testing              |  2 +-
 Package.swift                                          | 10 +++++++---
 Sources/Html/Node.swift                                |  2 ++
 .../HtmlSnapshotTestingTests.swift                     |  6 +-----
 4 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/Carthage/Checkouts/swift-snapshot-testing b/Carthage/Checkouts/swift-snapshot-testing
index 1fb2e65..883f0b0 160000
--- a/Carthage/Checkouts/swift-snapshot-testing
+++ b/Carthage/Checkouts/swift-snapshot-testing
@@ -1 +1 @@
-Subproject commit 1fb2e65cf62d2f983b3cab2871cbb218ea9ee9b7
+Subproject commit 883f0b0623ae55f41f42e2399dab428017896448
diff --git a/Package.swift b/Package.swift
index 5739ced..9f8053e 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version:5.0
+// swift-tools-version:4.2
 import Foundation
 import PackageDescription
 
@@ -13,7 +13,7 @@ let package = Package(
       targets: ["HtmlSnapshotTesting"]),
   ],
   dependencies: [
-    .package(url: "https://github.com/pointfreeco/swift-snapshot-testing.git", from: "1.3.0"),
+    .package(url: "https://github.com/pointfreeco/swift-snapshot-testing.git", from: "1.5.0"),
   ],
   targets: [
     .target(
@@ -28,7 +28,11 @@ let package = Package(
     .testTarget(
       name: "HtmlSnapshotTestingTests",
       dependencies: ["HtmlSnapshotTesting"]),
-    ]
+    ],
+  swiftLanguageVersions: [
+    .version("5"),
+    .v4_2,
+  ]
 )
 
 if ProcessInfo.processInfo.environment.keys.contains("PF_DEVELOP") {
diff --git a/Sources/Html/Node.swift b/Sources/Html/Node.swift
index 6eee9aa..ce02c52 100644
--- a/Sources/Html/Node.swift
+++ b/Sources/Html/Node.swift
@@ -135,6 +135,7 @@ extension Node: ExpressibleByStringLiteral {
   }
 }
 
+#if swift(>=5.0)
 public struct NodeStringInterpolation: StringInterpolationProtocol {
   var node: Node
 
@@ -160,3 +161,4 @@ extension Node: ExpressibleByStringInterpolation {
     self = stringInterpolation.node
   }
 }
+#endif
diff --git a/Tests/HtmlSnapshotTestingTests/HtmlSnapshotTestingTests.swift b/Tests/HtmlSnapshotTestingTests/HtmlSnapshotTestingTests.swift
index 48f4ddb..3d2e523 100644
--- a/Tests/HtmlSnapshotTestingTests/HtmlSnapshotTestingTests.swift
+++ b/Tests/HtmlSnapshotTestingTests/HtmlSnapshotTestingTests.swift
@@ -3,11 +3,7 @@ import HtmlSnapshotTesting
 import SnapshotTesting
 import XCTest
 
-#if !os(Linux)
-typealias SnapshotTestCase = XCTestCase
-#endif
-
-final class SnapshotTestingTests: SnapshotTestCase {
+final class SnapshotTestingTests: XCTestCase {
   func testComplexHtml() {
     let doc: Node = .document(
       .html(