Fix Xcode 13.0 compilation (#247)

Author: Ignacio Bonafonte

Package.resolved

@@ -70,7 +70,7 @@ internal struct DDSpan: Encodable {
         self.spanID = spanData.spanId
         self.parentID = spanData.parentSpanId
 
-        if let type = spanData.attributes["type"] {
+        if spanData.attributes["type"] != nil {
             self.name = spanData.name
         } else {
             self.name = spanData.name + "." + spanData.kind.rawValue

Sources/Exporters/DatadogExporter/Spans/SpanEncoder.swift

@@ -17,8 +17,10 @@ func addressesFor(host: String, port: Int) throws -> [sockaddr_storage] {
     guard err == 0, let start = addrList else {
         throw NSError(domain: NSURLErrorDomain, code: NSURLErrorCannotFindHost, userInfo: nil)
     }
-    defer { free(addrList) }
-    return sequence(first: start, next: { $0.pointee.ai_next }).map { (addr) -> sockaddr_storage in
+    defer {
+        free(start)
+    }
+    return sequence(first: start, next: { $0.pointee.ai_next }).map { addr -> sockaddr_storage in
         sockaddr_storage(sa: addr.pointee.ai_addr, saLen: addr.pointee.ai_addrlen)
     }
 }

Sources/Exporters/Jaeger/Utils/UDPUtils.swift

@@ -24,11 +24,11 @@ enum InstrumentationUtils {
         var implements = false
         if cls.instancesRespond(to: selector) {
             var methodCount: UInt32 = 0
-            let methodList = class_copyMethodList(cls, &methodCount)
-            defer {
-                free(methodList)
+            guard let methodList = class_copyMethodList(cls, &methodCount) else {
+                return implements
             }
-            if let methodList = methodList, methodCount > 0 {
+            defer { free(methodList) }
+            if methodCount > 0 {
                 enumerateCArray(array: methodList, count: methodCount) { _, m in
                     let sel = method_getName(m)
                     if sel == selector {