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package exerr
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import (
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"fmt"
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"runtime"
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)
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func callername(skip int) string {
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pc := make([]uintptr, 15)
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n := runtime.Callers(skip+2, pc)
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frames := runtime.CallersFrames(pc[:n])
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frame, _ := frames.Next()
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return fmt.Sprintf("%s:%d %s", frame.File, frame.Line, frame.Function)
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}
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