Aneurin Barker Snook
28 lines
673 B
Go
28 lines
673 B
Go
package validate
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// Validation error.
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var (
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ErrMustHaveMoreItems = NewError("must have at least %d items")
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ErrMustHaveFewerItems = NewError("must have no more than %d items")
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)
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// MaxSize validates the length of a slice as being less than or equal to a given maximum.
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func MaxSize[T any](l int) func([]T) error {
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return func(value []T) error {
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if len(value) > l {
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return ErrMustHaveFewerItems
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}
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return nil
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}
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}
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// MinSize validates the length of a slice as being greater than or equal to a given minimum.
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func MinSize[T any](l int) func([]T) error {
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return func(value []T) error {
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if len(value) < l {
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return ErrMustHaveMoreItems
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}
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return nil
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}
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}
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