Hi,
I'm writing a simple editor on Linux for Swift language. I use Task (was
NSTask) to run the Swift REPL. Unfortunately, Task failed to execute the Swift
REPL for no obvious reasons. The Swift compiler and REPL are installed just
fine and able to execute any Swift codes. However, my exact same code has no
problem to run bash commands.
Here's the code:_____
import Foundation
extension Task { func execute(command: String, currentDir: String = "~",
arguments: [String] = [], input: String = "") -> String { if !input.isEmpty
{ let pipeIn = Pipe() self.standardInput = pipeIn // multiple
inputs are separated by newline if let input = input.data(using:
String.Encoding.utf8) { pipeIn.fileHandleForWriting.write(input) }
} let pipeOut = Pipe() self.standardOutput = pipeOut
self.arguments = arguments self.launchPath = command
self.currentDirectoryPath = currentDir self.launch() let output =
pipeOut.fileHandleForReading.readDataToEndOfFile() self.waitUntilExit()
return String(data: output, encoding: String.Encoding(rawValue:
String.Encoding.utf8.rawValue))! }}
print(Task().execute(command: "swift", arguments: ["test.swift"])) // <-
FAILED// print(Task().execute(command: "python", arguments: ["test.py"])) // <-
FAILED// print(Task().execute(command: "/bin/ls", arguments: ["-l"])) // <-
OK
_____
The test code is just a simple hello world program, nothing fancy. Can anybody
here enlighten me what did I wrong with the code? I'm using Swift v.3.0 on
Ubuntu Linux 14.04.
Thank you.
Regards,
–Mr Bee
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