Add unsafe string and slice conversions
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parent
9ceed5378e
commit
b2f1db5666
23
db.go
23
db.go
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@ -6,10 +6,12 @@ import (
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"fmt"
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"os"
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"path/filepath"
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"reflect"
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"sort"
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"strconv"
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"sync"
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"time"
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"unsafe"
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"golang.org/x/sync/errgroup"
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@ -490,15 +492,36 @@ func (es MultiError) Error() string {
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return buf.String()
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}
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// Add adds the error to the error list if it is not nil.
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func (es MultiError) Add(err error) {
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if err != nil {
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es = append(es, err)
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}
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}
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// Err returns the error list as an error or nil if it is empty.
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func (es MultiError) Err() error {
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if len(es) == 0 {
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return nil
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}
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return es
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}
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func yoloString(b []byte) string {
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h := reflect.StringHeader{
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Data: uintptr(unsafe.Pointer(&b[0])),
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Len: len(b),
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}
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return *((*string)(unsafe.Pointer(&h)))
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}
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func yoloBytes(s string) []byte {
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sh := (*reflect.StringHeader)(unsafe.Pointer(&s))
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h := reflect.SliceHeader{
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Cap: sh.Len,
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Len: sh.Len,
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Data: sh.Data,
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}
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return *((*[]byte)(unsafe.Pointer(&h)))
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}
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