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/* |
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Package e2h its the package of the Enhanced Error Handling module |
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*/ |
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package e2h |
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import ( |
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"fmt" |
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"runtime" |
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) |
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// This function calls the addTrace in order to create or add stack info |
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func Trace(e error) error { |
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1 |
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return addTrace(e, "") |
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} |
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// Same as Trace, but adding a descriptive message |
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func Tracem(e error, message string) error { |
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return addTrace(e, message) |
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} |
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// Same as Tracem, but the descriptive message can have formatted values |
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func Tracef(e error, format string, args ...interface{}) error { |
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return addTrace(e, format, args...) |
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} |
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// This is the private function that creates the first EnhancedError |
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// with info or add the new info to the existing one |
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func addTrace(err error, format string, args ...interface{}) error { |
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if err == nil { |
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return nil |
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} |
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message := format |
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if args != nil { |
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message = fmt.Sprintf(format, args...) |
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} |
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pc, file, line, _ := runtime.Caller(2) |
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info := StackDetails{ |
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File: file, |
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Line: line, |
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FuncName: runtime.FuncForPC(pc).Name(), |
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Message: message, |
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} |
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1 |
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switch err.(type) { |
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case EnhancedError: |
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err.(*enhancedError).stack = append(err.(*enhancedError).stack, info) |
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return err |
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default: |
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return &enhancedError{ |
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err: err, |
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stack: append(make([]StackDetails, 0), info), |
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} |
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} |
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} |
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cdleo /
go-e2h
