src/internal/types/testdata/fixedbugs/issue39723.go - go - Git at Google

 // Copyright 2020 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.

 package p

 // A constraint must be an interface; it cannot
 // be a type parameter, for instance.
 func _[A interface{ ~int }, B A /* ERROR "cannot use a type parameter as constraint" */ ]() {}
	// Copyright 2020 The Go Authors. All rights reserved.
	// Use of this source code is governed by a BSD-style
	// license that can be found in the LICENSE file.

	package p

	// A constraint must be an interface; it cannot
	// be a type parameter, for instance.
	func _[A interface{ ~int }, B A /* ERROR "cannot use a type parameter as constraint" */ ]() {}