18 lines
308 B
Go
18 lines
308 B
Go
package main
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func groupBy(results []result, keyer groupFunc) []result {
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grouped := make(map[string]result, len(results))
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for _, cur := range results {
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key := keyer(cur)
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grouped[key] = cur.add(grouped[key])
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}
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out := results[:0]
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for _, r := range grouped {
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out = append(out, r)
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}
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return out
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}
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