ref: 1556cfb51d980ae8c5bf664ad69f3abd46f02386
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])
}