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// Copyright 2021 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
func f1[P int | string]() {}
func f2[P ~int | string | float64]() {}
func f3[P int](x P) {}
type myInt int
type myFloat float64
func _() {
_ = f1[int]
_ = f1[myInt /* ERROR "possibly missing ~ for int in int | string" */]
_ = f2[myInt]
_ = f2[myFloat /* ERROR "possibly missing ~ for float64 in ~int | string | float64" */]
var x myInt
f3 /* ERROR "myInt does not satisfy int (possibly missing ~ for int in int)" */ (x)
}
// test case from the issue
type SliceConstraint[T any] interface {
[]T
}
func Map[S SliceConstraint[E], E any](s S, f func(E) E) S {
return s
}
type MySlice []int
func f(s MySlice) {
Map[MySlice /* ERROR "MySlice does not satisfy SliceConstraint[int] (possibly missing ~ for []int in SliceConstraint[int])" */, int](s, nil)
}