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go/test/typeparam/issue46461.go

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all: avoid use of cmd/compile -G flag in tests The next CL will remove the -G flag, effectively hard-coding it to its current default (-G=3). Change-Id: Ib4743b529206928f9f1cca9fdb19989728327831 Reviewed-on: https://go-review.googlesource.com/c/go/+/388534 Reviewed-by: Keith Randall <khr@golang.org> Trust: Matthew Dempsky <mdempsky@google.com> Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gopher Robot <gobot@golang.org>
2022-02-28 15:32:19 -07:00
// errorcheck
test: add compiler regress tests for #46461 gri@ reports that types2 now correctly handles when type parameters recursively refer back to the parameterized type, so we might as well add tests to exercise that. Unified IR also correctly handles importing and exporting these types, but -G=3 currently does not. Updates #46461. Change-Id: I272102aa08c40c980b9aeeca9f834291dfbbcc3e Reviewed-on: https://go-review.googlesource.com/c/go/+/348738 Trust: Matthew Dempsky <mdempsky@google.com> Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>
2021-09-09 12:17:39 -06:00
// 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
go/types, types2: more concise error messages for cycle errors If a cycle has length 1, don't enumerate the single cycle entry; instead just mention "refers to itself". For instance, for an invalid recursive type T we now report: invalid recursive type: T refers to itself instead of: invalid recursive type T T refers to T Adjust tests to check for the different error messages. Change-Id: I5bd46f62fac0cf167f0d0c9a55f952981d294ff4 Reviewed-on: https://go-review.googlesource.com/c/go/+/436295 Run-TryBot: Robert Griesemer <gri@google.com> Reviewed-by: Robert Griesemer <gri@google.com> Reviewed-by: Robert Findley <rfindley@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Auto-Submit: Robert Griesemer <gri@google.com>
2022-09-28 17:44:53 -06:00
type T[U interface{ M() T[U] }] int // ERROR "invalid recursive type: T refers to itself"
test: add compiler regress tests for #46461 gri@ reports that types2 now correctly handles when type parameters recursively refer back to the parameterized type, so we might as well add tests to exercise that. Unified IR also correctly handles importing and exporting these types, but -G=3 currently does not. Updates #46461. Change-Id: I272102aa08c40c980b9aeeca9f834291dfbbcc3e Reviewed-on: https://go-review.googlesource.com/c/go/+/348738 Trust: Matthew Dempsky <mdempsky@google.com> Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>
2021-09-09 12:17:39 -06:00
type X int
func (X) M() T[X] { return 0 }
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