32 lines
644 B
Go
32 lines
644 B
Go
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package validate
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import (
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"errors"
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)
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// Validation error.
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var (
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ErrTooFewItems = errors.New("too few items")
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ErrTooManyItems = errors.New("too many 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 ErrTooFewItems
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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 ErrTooManyItems
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}
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return nil
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}
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}
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