end
f9befa1b0a
Reorganize monolithic dbx.go and utility.go into focused files by concern, add package doc.go, and gitignore coverage.out. Co-authored-by: Cursor <cursoragent@cursor.com>
66 lines
1.4 KiB
Go
66 lines
1.4 KiB
Go
package dbx
|
|
|
|
import (
|
|
"reflect"
|
|
"strings"
|
|
"time"
|
|
)
|
|
|
|
// NowPtr returns a pointer to the current time.
|
|
func NowPtr() *time.Time {
|
|
now := time.Now()
|
|
return &now
|
|
}
|
|
|
|
// Ptr returns a pointer to the given value of any scalar type. Returns nil if the value is a zero value.
|
|
func Ptr[T any](val T) *T {
|
|
if reflect.ValueOf(val).IsZero() {
|
|
return nil
|
|
}
|
|
return &val
|
|
}
|
|
|
|
// Val returns the value of the pointer to a scalar type, or the zero value if the pointer is nil.
|
|
func Val[T any](ptr *T) T {
|
|
if ptr == nil {
|
|
var zero T
|
|
return zero
|
|
}
|
|
return *ptr
|
|
}
|
|
|
|
// TrimPtr trims the whitespace from a pointer to a string and returns nil only if the pointer is nil.
|
|
func TrimPtr(s *string) *string {
|
|
if s == nil {
|
|
return nil
|
|
}
|
|
trimmed := strings.TrimSpace(*s)
|
|
return &trimmed
|
|
}
|
|
|
|
// TrimPtrToNil trims the whitespace from a pointer to a string and returns nil
|
|
// if the resulting string is empty or if the pointer is nil.
|
|
func TrimPtrToNil(s *string) *string {
|
|
if s == nil {
|
|
return nil
|
|
}
|
|
trimmed := strings.TrimSpace(*s)
|
|
if trimmed == "" {
|
|
return nil
|
|
}
|
|
return &trimmed
|
|
}
|
|
|
|
// IsZero checks if a pointer references the zero value of a given type and
|
|
// returns an error if this condition is met, otherwise returns nil if the
|
|
// pointer is nil or the value is not zero.
|
|
func IsZero[T any](ptr *T) error {
|
|
if ptr == nil {
|
|
return nil
|
|
}
|
|
if reflect.ValueOf(*ptr).IsZero() {
|
|
return ErrValueIsZero
|
|
}
|
|
return nil
|
|
}
|