Value assigned to a variable is never read before being overwritten SCC-SA4006
Bug risk
Critical
9 months ago
—
3 years old
No results found
That’s all we can say right now.
Description
Value has been assigned to a variable, but it is being overwritten before being read. In most cases, this could be a forgotten error check or dead code.
Bad practice
err := Op1()
// error value assigned to "err" by "Op1" is replaced with
// error value assigned by "Op2" before even being read even
// once
err = Op2()
if err != nil {
return err
}
Recommended
// Ignore the error value returned by "Op1"
Op1()
err := Op2()
if err != nil {
return err
}
err := Op1()
// Read the error value assigned to "err" by "Op1"
if err != nil {
return err
}
err = Op2()
if err != nil {
return err
}