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The analyzer has detected a potential error caused by passing the same argument multiple times when a method or function is calling.
The example N1:
func Do(mX, mY, mZ int) {
....
}
func (vec Vector) Foo() {
Do(vec.x, vec.y, vec.y)
}In the Do function signature and its call, the vec.y argument is passed twice. Most likely, the mZ parameter was intended to receive vec.z.
The fixed code:
func (vec Vector) Foo() {
Do(vec.x, vec.y, vec.z)
}Passing identical arguments to certain standard library functions (math.Min, math.Max, and strings.Replace) may also be an error.
The example N2:
var count, capacity int
....
size := math.Max(float64(count), float64(count))Due to a typo, math.Max compares the count variable with itself. Therefore, the function always returns the value of count.
The fixed code:
size := math.Max(float64(count), float64(capacity))This diagnostic rule is classified as:
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