gitlab.com/ethan.reesor/vscode-notebooks/yaegi@v0.0.0-20220417214422-5c573557938e/_test/type20.go (about)

     1  package main
     2  
     3  import (
     4  	"io"
     5  	"strings"
     6  )
     7  
     8  func isCloser(r io.Reader) bool {
     9  	_, ok := r.(io.Closer)
    10  	return ok
    11  }
    12  
    13  func main() {
    14  	println(isCloser(strings.NewReader("test")))
    15  }
    16  
    17  // Output:
    18  // false