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// 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.
// This file contains basic generic code snippets.
package p
// type parameter lists
type B[P any] struct{}
type _[P interface{}] struct{}
type _[P B] struct{}
type _[P B[P]] struct{}
type _[A, B, C any] struct{}
type _[A, B, C B] struct{}
type _[A, B, C B[A, B, C]] struct{}
type _[A1, A2 B1, A3 B2, A4, A5, A6 B3] struct{}
type _[A interface{}] struct{}
type _[A, B interface{ m() }] struct{}
type _[A, B, C any] struct{}
// in functions
func _[P any]()
func _[P interface{}]()
func _[P B]()
func _[P B[P]]()
// type instantiations
type _ T[int]
// in expressions
var _ = T[int]{}
// in embedded types
type _ struct{ T[int] }
// interfaces
type _ interface {
m()
~int
}
type _ interface {
~int | ~float | ~string
~complex128
underlying(underlying underlying) underlying
}
type _ interface {
T
T[int]
}
// tricky cases
func _(T[P], T[P1, P2])
func _(a [N]T)
type _ struct {
T[P]
T[P1, P2]
f[N]
}
type _ interface {
m()
// instantiated types
T[ /* ERROR empty type argument list */ ]
T[P]
T[P1, P2]
}
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