移除某些方法返回值忽略警告

MRFramework/MRFramework/Extensions/UIKit/UIView+util.swift

@@ -139,9 +139,10 @@ extension UIView {
     }
     
     public func addLine(position: LinePosition = .bottom(offset: 0, style: .full), width: CGFloat = 1) {
-        let _ = line(position: position, width: width)
+        line(position: position, width: width)
     }
     
+    @discardableResult
     public func line(position: LinePosition, width: CGFloat = 1) -> BorderLine {
         if let line = viewWithTag(position.tag) as? BorderLine {
             return line

MRFramework/MRFramework/FoundationManagers/BLE/BLEPeripheralExtention.swift

@@ -100,6 +100,7 @@ extension CBPeripheral {
         }
     }
     
+    @discardableResult
     public func observerValue(_ chars: CBCharacteristic, change: @escaping BLECharsValueBlock) -> Bool {
         if delegate != nil && chars.observerable {
             CBPeripheral._charsValueObservers[chars.observerKey] = change
@@ -188,7 +189,7 @@ extension CBPeripheral {
             if error != nil {
                 change(self, nil, error)
             } else if let c = chars?.first {
-                let _ = self.observerValue(c, change: change)
+                self.observerValue(c, change: change)
             } else {
                 change(p, nil, self.error(code: .notfound, desc: "未找到对应特征"))
             }

MRFramework/MRFramework/FoundationManagers/Files/MRFiles.swift

@@ -72,6 +72,7 @@ extension MRFiles {
         }
     }
     
+    @discardableResult
     public class func syncCreateDirectory(_ url: URL, force: Bool = true) -> Error? {
         if force, url.isURLExists() {
             if let error = syncDelete(url) {
@@ -95,6 +96,7 @@ extension MRFiles {
         }
     }
     
+    @discardableResult
     public class func syncWrite(to url: URL, data: Data?, force: Bool = true) -> Error? {
         if force, url.isURLExists() {
             if let err = syncDelete(url) {
@@ -124,6 +126,7 @@ extension MRFiles {
         }
     }
     
+    @discardableResult
     public class func syncDelete(_ url: URL) -> Error? {
         do {
             try FileManager.default.removeItem(at: url)
@@ -142,6 +145,7 @@ extension MRFiles {
         }
     }
     
+    @discardableResult
     public class func syncCopy(src: URL, to: URL, force: Bool = true) -> Error? {
         if !src.isURLExists() {
             return error(.notExists, msg: "复制文件不存在")
@@ -168,6 +172,7 @@ extension MRFiles {
         }
     }
     
+    @discardableResult
     public class func syncCopyItems(fromDic: URL, toDic: URL, filter: MRFilesFilterBlock? = nil) -> Error? {
         guard fromDic.isURLExists(), toDic.isURLExists() else {
             return error(.notExists, msg: "目录不存在")
@@ -196,6 +201,7 @@ extension MRFiles {
         }
     }
     
+    @discardableResult
     public class func syncMove(src: URL, to: URL, force: Bool = true) -> Error? {
         if !src.isURLExists() {
             return error(.notExists, msg: "移动文件不存在")
@@ -222,6 +228,7 @@ extension MRFiles {
         }
     }
     
+    @discardableResult
     public class func syncMoveItems(fromDic: URL, toDic: URL, filter: MRFilesFilterBlock? = nil) -> Error? {
         guard fromDic.isURLExists(), toDic.isURLExists() else {
             return error(.notExists, msg: "目录不存在")
@@ -250,6 +257,7 @@ extension MRFiles {
         }
     }
     
+    @discardableResult
     public class func syncLink(src: URL, to: URL, force: Bool = true) -> Error? {
         if !src.isURLExists() {
             return error(.notExists, msg: "链接文件不存在")
@@ -279,6 +287,7 @@ extension MRFiles {
         }
     }
     
+    @discardableResult
     public class func syncContents(of fileURL: URL) -> (Data?, Error?) {
         if !fileURL.isURLExists() {
             return (nil, error(.notExists, msg: "文件不存在"))
@@ -291,6 +300,7 @@ extension MRFiles {
         }
     }
     
+    @discardableResult
     public class func syncHash(of fileURL: URL) -> String? {
         let rs = syncContents(of: fileURL)
         if let data = rs.0 {
@@ -339,6 +349,7 @@ extension String {
         return FileManager.default.isWritableFile(atPath: self)
     }
     
+    @discardableResult
     public func syncWriteToFile(_ url: URL, force: Bool = true) -> Error? {
         return MRFiles.syncWrite(to: url, data: data(using: .utf8), force: force)
     }
@@ -357,6 +368,7 @@ extension URL {
         return FileManager.default.isWritableFile(atPath: path)
     }
     
+    @discardableResult
     public func syncCreate(force: Bool = true, isDirectory: Bool = true) -> Error? {
         if isDirectory {
             return MRFiles.syncCreateDirectory(self, force: force)
@@ -373,6 +385,7 @@ extension URL {
         }
     }
     
+    @discardableResult
     public func syncCopy(to url: URL, force: Bool = true) -> Error? {
         return MRFiles.syncCopy(src: self, to: url, force: force)
     }
@@ -381,6 +394,7 @@ extension URL {
         MRFiles.asyncCopy(src: self, to: url, force: force, finish: finish)
     }
     
+    @discardableResult
     public func syncCopyItems(to url: URL, filter: MRFilesFilterBlock? = nil) -> Error? {
         return MRFiles.syncCopyItems(fromDic: self, toDic: url, filter: filter)
     }
@@ -389,6 +403,7 @@ extension URL {
         MRFiles.asyncCopyItems(fromDic: self, toDic: url, filter: filter, finish: finish)
     }
     
+    @discardableResult
     public func syncMove(to url: URL, force: Bool = true) -> Error? {
         return MRFiles.syncMove(src: self, to: url, force: force)
     }
@@ -397,6 +412,7 @@ extension URL {
         MRFiles.asyncMove(src: self, to: url, force: force, finish: finish)
     }
     
+    @discardableResult
     public func syncMoveItems(to url: URL, filter: MRFilesFilterBlock? = nil) -> Error? {
         return MRFiles.syncMoveItems(fromDic: self, toDic: url, filter: filter)
     }
@@ -405,6 +421,7 @@ extension URL {
         MRFiles.asyncMoveItems(fromDic: self, toDic: url, filter: filter, finish: finish)
     }
     
+    @discardableResult
     public func syncDelete() -> Error? {
         return MRFiles.syncDelete(self)
     }
@@ -423,6 +440,7 @@ extension URL {
 }
 
 extension Data {
+    @discardableResult
     public func syncWrite(to url: URL, force: Bool = true) -> Error? {
         return MRFiles.syncWrite(to: url, data: self, force: force)
     }

MRFramework/MRFrameworkTests/MRFilesTests.swift

@@ -16,14 +16,14 @@ class MRFilesTests: XCTestCase {
     override func setUp() {
         // Put setup code here. This method is called before the invocation of each test method in the class.
         if let url = documentURL {
-            let _ = MRFiles.syncCreateDirectory(url)
+            MRFiles.syncCreateDirectory(url)
         }
     }
 
     override func tearDown() {
         // Put teardown code here. This method is called after the invocation of each test method in the class.
         if let url = documentURL {
-            let _ = MRFiles.syncDelete(url)
+            MRFiles.syncDelete(url)
         }
     }