ref: c8dd7d3b44c93a664dddc0c4619d336c6e13d2a8
dir: /ref/refname/utils.go/
package refname
import (
"strings"
)
func overwriteLastByte(builder *strings.Builder, ch byte) {
overwriteBuilderAt(builder, builder.Len()-1, ch)
}
func overwriteBuilderAt(builder *strings.Builder, index int, ch byte) {
value := builder.String()
truncateBuilder(builder, index)
builder.WriteByte(ch)
builder.WriteString(value[index+1:])
}
func truncateBuilder(builder *strings.Builder, n int) {
value := builder.String()
builder.Reset()
builder.WriteString(value[:n])
}