Merge pull request #889 from Quick/wasm

Experimental SwiftWasm support

Author: ikesyo

.github/workflows/wasm.yml

@@ -0,0 +1,17 @@
+name: SwiftWasm
+
+on:
+  pull_request:
+    paths:
+      - .github/workflows/wasm.yml
+  schedule:
+    - cron: "0 0 * * 1"
+  workflow_dispatch:
+
+jobs:
+  test:
+    name: Test SwiftWasm
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: swiftwasm/[email protected]

Sources/Nimble/Adapters/NMBExpectation.swift

@@ -1,3 +1,5 @@
+#if !os(WASI)
+
 #if canImport(Darwin) && !SWIFT_PACKAGE
 import class Foundation.NSObject
 import typealias Foundation.TimeInterval
@@ -150,3 +152,5 @@ public class NMBExpectation: NSObject {
 }
 
 #endif
+
+#endif // #if !os(WASI)

Sources/Nimble/Adapters/NimbleEnvironment.swift

@@ -1,10 +1,15 @@
+#if !os(WASI)
 import Dispatch
-import class Foundation.NSObject
 import class Foundation.Thread
+#endif
+import class Foundation.NSObject
 
 /// "Global" state of Nimble is stored here. Only DSL functions should access / be aware of this
 /// class' existence
 internal class NimbleEnvironment: NSObject {
+    #if os(WASI)
+    static var activeInstance: NimbleEnvironment = NimbleEnvironment()
+    #else
     static var activeInstance: NimbleEnvironment {
         get {
             let env = Thread.current.threadDictionary["NimbleEnvironment"]
@@ -20,6 +25,7 @@ internal class NimbleEnvironment: NSObject {
             Thread.current.threadDictionary["NimbleEnvironment"] = newValue
         }
     }
+    #endif
 
     // swiftlint:disable:next todo
     // TODO: eventually migrate the global to this environment value
@@ -29,15 +35,19 @@ internal class NimbleEnvironment: NSObject {
     }
 
     var suppressTVOSAssertionWarning: Bool = false
+    #if !os(WASI)
     var awaiter: Awaiter
+    #endif
 
     override init() {
+        #if !os(WASI)
         let timeoutQueue = DispatchQueue.global(qos: .userInitiated)
         awaiter = Awaiter(
             waitLock: AssertionWaitLock(),
             asyncQueue: .main,
             timeoutQueue: timeoutQueue
         )
+        #endif
 
         super.init()
     }

Sources/Nimble/DSL+Wait.swift

@@ -1,3 +1,5 @@
+#if !os(WASI)
+
 import Dispatch
 import Foundation
 
@@ -117,3 +119,5 @@ internal func blockedRunLoopErrorMessageFor(_ fnName: String, leeway: DispatchTi
 public func waitUntil(timeout: DispatchTimeInterval = AsyncDefaults.timeout, file: FileString = #file, line: UInt = #line, action: @escaping (@escaping () -> Void) -> Void) {
     NMBWait.until(timeout: timeout, file: file, line: line, action: action)
 }
+
+#endif // #if !os(WASI)

Sources/Nimble/Matchers/Async.swift

@@ -1,3 +1,5 @@
+#if !os(WASI)
+
 import Foundation
 import Dispatch
 
@@ -180,3 +182,5 @@ extension Expectation {
         return toNever(predicate, until: until, pollInterval: pollInterval, description: description)
     }
 }
+
+#endif // #if !os(WASI)

Sources/Nimble/Matchers/BeginWith.swift

@@ -17,12 +17,12 @@ public func beginWith(_ startingElement: Any) -> Predicate<NMBOrderedCollection>
     return Predicate.simple("begin with <\(startingElement)>") { actualExpression in
         guard let collection = try actualExpression.evaluate() else { return .fail }
         guard collection.count > 0 else { return .doesNotMatch }
-        #if os(Linux)
+        #if os(macOS) || os(iOS) || os(tvOS) || os(watchOS)
+            let collectionValue = collection.object(at: 0) as AnyObject
+        #else
             guard let collectionValue = collection.object(at: 0) as? NSObject else {
                 return .fail
             }
-        #else
-            let collectionValue = collection.object(at: 0) as AnyObject
         #endif
         return PredicateStatus(bool: collectionValue.isEqual(startingElement))
     }

Sources/Nimble/Matchers/EndWith.swift

@@ -25,12 +25,12 @@ public func endWith(_ endingElement: Any) -> Predicate<NMBOrderedCollection> {
         guard let collection = try actualExpression.evaluate() else { return .fail }
 
         guard collection.count > 0 else { return PredicateStatus(bool: false) }
-        #if os(Linux)
+        #if os(macOS) || os(iOS) || os(tvOS) || os(watchOS)
+            let collectionValue = collection.object(at: collection.count - 1) as AnyObject
+        #else
             guard let collectionValue = collection.object(at: collection.count - 1) as? NSObject else {
                 return .fail
             }
-        #else
-            let collectionValue = collection.object(at: collection.count - 1) as AnyObject
         #endif
 
         return PredicateStatus(bool: collectionValue.isEqual(endingElement))

Sources/Nimble/Matchers/MatcherProtocols.swift

@@ -46,13 +46,15 @@ public protocol NMBDoubleConvertible {
 extension NSNumber: NMBDoubleConvertible {
 }
 
+#if !os(WASI)
 private let dateFormatter: DateFormatter = {
     let formatter = DateFormatter()
     formatter.dateFormat = "yyyy-MM-dd HH:mm:ss.SSSS"
     formatter.locale = Locale(identifier: "en_US_POSIX")
 
     return formatter
 }()
+#endif
 
 extension Date: NMBDoubleConvertible {
     public var doubleValue: CDouble {
@@ -66,6 +68,7 @@ extension NSDate: NMBDoubleConvertible {
     }
 }
 
+#if !os(WASI)
 extension Date: TestOutputStringConvertible {
     public var testDescription: String {
         return dateFormatter.string(from: self)
@@ -77,6 +80,7 @@ extension NSDate: TestOutputStringConvertible {
         return dateFormatter.string(from: Date(timeIntervalSinceReferenceDate: self.timeIntervalSinceReferenceDate))
     }
 }
+#endif
 
 #if canImport(Darwin)
 /// Protocol for types to support beLessThan(), beLessThanOrEqualTo(),

Sources/Nimble/Matchers/PostNotification.swift

@@ -1,3 +1,5 @@
+#if !os(WASI)
+
 #if canImport(Foundation)
 import Foundation
 
@@ -97,4 +99,6 @@ public func postDistributedNotifications<Out>(
 }
 #endif
 
-#endif
+#endif // #if canImport(Foundation)
+
+#endif // #if !os(WASI)

Sources/Nimble/Utils/Await.swift

@@ -1,3 +1,5 @@
+#if !os(WASI)
+
 import CoreFoundation
 import Dispatch
 import Foundation
@@ -369,3 +371,5 @@ internal func pollBlock(
 
         return result
 }
+
+#endif // #if !os(WASI)