64 lines
1.1 KiB
Go
64 lines
1.1 KiB
Go
package u
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import (
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"fmt"
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"time"
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)
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// P 是一个工具函数，用于在表达式内原地创建一个指针
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func P[T any](v T) *T {
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return &v
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}
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func Z[T any](v *T) T {
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if v == nil {
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var zero T
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return zero
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}
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return *v
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}
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func X[T comparable](v T) *T {
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var zero T
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if v == zero {
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return nil
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}
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return &v
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}
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func Today() time.Time {
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var now = time.Now()
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return time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, now.Location())
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}
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func Date(date time.Time) time.Time {
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return time.Date(date.Year(), date.Month(), date.Day(), 0, 0, 0, 0, date.Location())
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}
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func SameDate(date time.Time) bool {
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var now = time.Now()
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return date.Year() == now.Year() && date.Month() == now.Month() && date.Day() == now.Day()
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}
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func Or[T any](v *T, or T) T {
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if v == nil {
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return or
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} else {
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return *v
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}
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}
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func CombineErrors(errs []error) error {
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var combinedErr error = nil
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for _, err := range errs {
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if err != nil {
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if combinedErr == nil {
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combinedErr = err
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} else {
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combinedErr = fmt.Errorf("%v; %w", combinedErr, err)
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}
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}
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}
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return combinedErr
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}
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