Is there a way to get line number and function name in Swift language?

Question

In Objective-C, we could use the __LINE__ and __PRETTY_FUNCTION__ macros. These are not exposed in the Swift language. Is there another way to get similar information in Swift?

Answer 1

Literal     Type              Value  #file       String            The path to the file in which it appears. #fileID     String            The name of the file and module in which it appears. #filePath   String            The path to the file in which it appears. #line       Int               The line number on which it appears. #column     Int               The column number in which it begins. #function   String            The name of the declaration in which it appears. #dsohandle  UnsafeRawPointer  The dynamic shared object (DSO) handle in use where it appears. 

See documentation for more information

Example:

print("Function: \(#function), line: \(#line)")  

With default values in parameters you can also create a function:

public func track(_ message: String, file: String = #file, function: String = #function, line: Int = #line ) {      print("\(message) called from \(function) \(file):\(line)")  } 

which can be used like this

track("enters app")