Huangzj
31 lines
712 B
Go
31 lines
712 B
Go
package linq
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// Reverse inverts the order of the elements in a collection.
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//
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// Unlike OrderBy, this sorting method does not consider the actual values themselves
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// in determining the order. Rather, it just returns the elements in the reverse order
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// from which they are produced by the underlying source.
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func (q Query) Reverse() Query {
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return Query{
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Iterate: func() Iterator {
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next := q.Iterate()
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items := []interface{}{}
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for item, ok := next(); ok; item, ok = next() {
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items = append(items, item)
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}
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index := len(items) - 1
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return func() (item interface{}, ok bool) {
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if index < 0 {
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return
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}
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item, ok = items[index], true
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index--
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return
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}
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},
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}
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}
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