Source file src/golang.org/x/xerrors/example_As_test.go

Documentation: golang.org/x/xerrors

     1  // Copyright 2019 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package xerrors_test
     6  
     7  import (
     8  	"fmt"
     9  	"os"
    10  
    11  	"golang.org/x/xerrors"
    12  )
    13  
    14  func ExampleAs() {
    15  	_, err := os.Open("non-existing")
    16  	if err != nil {
    17  		var pathError *os.PathError
    18  		if xerrors.As(err, &pathError) {
    19  			fmt.Println("Failed at path:", pathError.Path)
    20  		}
    21  	}
    22  
    23  	// Output:
    24  	// Failed at path: non-existing
    25  }
    26  

View as plain text