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go/test/fixedbugs/bug398.go
Robert Griesemer 6fe0d3758b cmd/compile: remove interfacecycles debug flag
Per the discussion on the issue, since no problems related to this
appeared since Go 1.20, remove the ability to disable the check for
anonymous interface cycles permanently.

Adjust various tests accordingly.

For #56103.

Change-Id: Ica2b28752dca08934bbbc163a9b062ae1eb2a834
Reviewed-on: https://go-review.googlesource.com/c/go/+/550896
Run-TryBot: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2023-12-19 04:39:56 +00:00

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951 B
Go

// errorcheck
// Copyright 2012 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.
// Used to crash compiler in interface type equality check.
// (This test used to have problems - see #15596.)
package p
// exported interfaces
type I1 interface { // ERROR "invalid recursive type: anonymous interface refers to itself"
F() interface{I1}
}
type I2 interface { // ERROR "invalid recursive type: anonymous interface refers to itself"
F() interface{I2}
}
var V1 I1
var V2 I2
func F() bool {
return V1 == V2
}
// non-exported interfaces
type i1 interface { // ERROR "invalid recursive type: anonymous interface refers to itself"
F() interface{i1}
}
type i2 interface { // ERROR "invalid recursive type: anonymous interface refers to itself"
F() interface{i2}
}
var v1 i1
var v2 i2
func f() bool {
return v1 == v2
}