Source file test/typeparam/issue47676.go

     1  // run
     2  
     3  // Copyright 2021 The Go Authors. All rights reserved.
     4  // Use of this source code is governed by a BSD-style
     5  // license that can be found in the LICENSE file.
     6  
     7  package main
     8  
     9  func main() {
    10  	d := diff([]int{}, func(int) string {
    11  		return "foo"
    12  	})
    13  	d()
    14  }
    15  
    16  func diff[T any](previous []T, uniqueKey func(T) string) func() {
    17  	return func() {
    18  		newJSON := map[string]T{}
    19  		for _, prev := range previous {
    20  			delete(newJSON, uniqueKey(prev))
    21  		}
    22  	}
    23  }
    24  

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