issue40057.go2

     1  // Copyright 2020 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package p
     6  
     7  func _() {
     8  	var x interface{}
     9  	switch t := x.(type) {
    10  	case S /* ERROR cannot use generic type */ :
    11  		t.m()
    12  	}
    13  }
    14  
    15  type S[T any] struct {}
    16  
    17  func (_ S[T]) m()
    18

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