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1e57748892
Adjust types2 and go/types and some test cases. Because `any` is not treated specially anymore in constraint position we get additional errors in constraints if `any` is used before Go1.18 (in addition to the error that type parameter lists are not permitted before Go1.18). Fixes #33232. Change-Id: I85590c6094b07c3e494fef319e3a38d0217cf6f0 Reviewed-on: https://go-review.googlesource.com/c/go/+/351456 Trust: Robert Griesemer <gri@golang.org> Run-TryBot: Robert Griesemer <gri@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Findley <rfindley@google.com>
41 lines
1.1 KiB
Go
41 lines
1.1 KiB
Go
// errorcheck -G
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// Copyright 2020 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Basic type parameter list type-checking (not syntax) errors.
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package tparam1
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// The predeclared identifier "any" may be used in place of interface{}.
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var _ any
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func _(_ any)
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type _[_ any] struct{}
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const N = 10
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type (
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_ []struct{} // slice
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_ [N]struct{} // array
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_[T any] struct{}
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_[T, T any] struct{} // ERROR "T redeclared"
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_[T1, T2 any, T3 any] struct{}
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)
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func _[T any]() {}
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func _[T, T any]() {} // ERROR "T redeclared"
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func _[T1, T2 any](x T1) T2 { panic(0) }
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// Type parameters are visible from opening [ to end of function.
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type C interface{}
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func _[T interface{}]() {}
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func _[T C]() {}
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func _[T struct{}]() {} // ERROR "not an interface"
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func _[T interface{ m() T }]() {}
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func _[T1 interface{ m() T2 }, T2 interface{ m() T1 }]() {
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var _ T1
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}
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// TODO(gri) expand this
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