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📁 ..
📄 chans.go(1.82 KB)
📄 fallthrough.go(946 B)
📄 interface.go(1.07 KB)
📄 issue20789.go(355 B)
📄 issue23385.go(406 B)
📄 issue23434.go(634 B)
📄 issue31092.go(522 B)
📄 issue43527.go(1.09 KB)
📄 issue43674.go(452 B)
📄 issue46558.go(308 B)
📄 issue47704.go(384 B)
📄 issue48382.go(736 B)
📄 issue49205.go(932 B)
📄 issue49482.go(965 B)
📄 issue52391.go(400 B)
📄 linalg.go(2.07 KB)
📄 map.go(2.76 KB)
📄 map2.go(3.39 KB)
📄 sample.go(951 B)
📄 slices.go(1.49 KB)
📄 smoketest.go(1.16 KB)
📄 tparams.go(1.01 KB)
📄 typeset.go(2.32 KB)

Editing: typeset.go

// 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.

// This file contains test cases for typeset-only constraint elements.

package p

type (
        _[_ t] t
        _[_ ~t] t
        _[_ t|t] t
        _[_ ~t|t] t
        _[_ t|~t] t
        _[_ ~t|~t] t

_[_ t, _, _ t|t] t
        _[_ t, _, _ ~t|t] t
        _[_ t, _, _ t|~t] t
        _[_ t, _, _ ~t|~t] t

_[_ t.t] t
        _[_ ~t.t] t
        _[_ t.t|t.t] t
        _[_ ~t.t|t.t] t
        _[_ t.t|~t.t] t
        _[_ ~t.t|~t.t] t

_[_ t, _, _ t.t|t.t] t
        _[_ t, _, _ ~t.t|t.t] t
        _[_ t, _, _ t.t|~t.t] t
        _[_ t, _, _ ~t.t|~t.t] t

_[_ struct{}] t
        _[_ ~struct{}] t

_[_ struct{}|t] t
        _[_ ~struct{}|t] t
        _[_ struct{}|~t] t
        _[_ ~struct{}|~t] t

_[_ t|struct{}] t
        _[_ ~t|struct{}] t
        _[_ t|~struct{}] t
        _[_ ~t|~struct{}] t

// test cases for issue #49175
        _[_ []t]t
        _[_ [1]t]t
        _[_ ~[]t]t
        _[_ ~[1]t]t
        t [ /* ERROR type parameters must be named */ t[0]]t
)

// test cases for issue #49174
func _[_ t]() {}
func _[_ []t]() {}
func _[_ [1]t]() {}
func _[_ []t | t]() {}
func _[_ [1]t | t]() {}
func _[_ t | []t]() {}
func _[_ []t | []t]() {}
func _[_ [1]t | [1]t]() {}
func _[_ t[t] | t[t]]() {}

// Single-expression type parameter lists and those that don't start
// with a (type parameter) name are considered array sizes.
// The term must be a valid expression (it could be a type incl. a
// tilde term) but the type-checker will complain.
type (
        _[t] t
        _[t|t] t

// These are invalid and the type-checker will complain.
        _[~t] t
        _[~t|t] t
        _[t|~t] t
        _[~t|~t] t
)

type (
        _[_ t, t /* ERROR missing type constraint */ ] t
        _[_ ~t, t /* ERROR missing type constraint */ ] t
        _[_ t, /* ERROR type parameters must be named */ ~t] t
        _[_ ~t, /* ERROR type parameters must be named */ ~t] t

_[_ t|t, /* ERROR type parameters must be named */ t|t] t
        _[_ ~t|t, /* ERROR type parameters must be named */ t|t] t
        _[_ t|t, /* ERROR type parameters must be named */ ~t|t] t
        _[_ ~t|t, /* ERROR type parameters must be named */ ~t|t] t
)

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Editing: typeset.go

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