Source file src/errors/example_test.go

Documentation: errors

		 1  // Copyright 2012 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 errors_test
		 6  
		 7  import (
		 8  	"fmt"
		 9  	"time"
		10  )
		11  
		12  // MyError is an error implementation that includes a time and message.
		13  type MyError struct {
		14  	When time.Time
		15  	What string
		16  }
		17  
		18  func (e MyError) Error() string {
		19  	return fmt.Sprintf("%v: %v", e.When, e.What)
		20  }
		21  
		22  func oops() error {
		23  	return MyError{
		24  		time.Date(1989, 3, 15, 22, 30, 0, 0, time.UTC),
		25  		"the file system has gone away",
		26  	}
		27  }
		28  
		29  func Example() {
		30  	if err := oops(); err != nil {
		31  		fmt.Println(err)
		32  	}
		33  	// Output: 1989-03-15 22:30:00 +0000 UTC: the file system has gone away
		34  }
		35  

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