github.com/gogf/gf@v1.16.9/.example/errors/gerror/gerror4.go (about)

     1  package main
     2  
     3  import (
     4  	"fmt"
     5  
     6  	"github.com/gogf/gf/errors/gerror"
     7  )
     8  
     9  func OpenFile() error {
    10  	return gerror.New("permission denied")
    11  }
    12  
    13  func OpenConfig() error {
    14  	return gerror.Wrap(OpenFile(), "configuration file opening failed")
    15  }
    16  
    17  func ReadConfig() error {
    18  	return gerror.Wrap(OpenConfig(), "reading configuration failed")
    19  }
    20  
    21  func main() {
    22  	fmt.Println(gerror.Cause(ReadConfig()))
    23  }