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mirror of https://github.com/golang/go synced 2024-11-17 19:25:13 -07:00
go/test/fixedbugs/bug195.go
Dan Scales fd54ae8b0c [dev.typeparams] cmd/compile: adding union support in types1
Add union support in types1, and allow exporting of unions, and
importing unions back into types1 and types2.

Added new test mincheck.go/mincheck.dir that tests that type lists (type
sets) are correctly exported/imported, so that types2 gives correct
errors that an instantiation doesn't fit the type list in the type param
constraint.

Change-Id: I8041c6c79289c870a95ed5a1b10e4c1c16985b12
Reviewed-on: https://go-review.googlesource.com/c/go/+/322609
Trust: Dan Scales <danscales@google.com>
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2021-05-26 15:33:02 +00:00

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Go

// errorcheck -lang=go1.17
// Copyright 2009 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 main
type I1 interface{ I2 } // ERROR "interface"
type I2 int
type I3 interface{ int } // ERROR "interface"
type S struct {
x interface{ S } // ERROR "interface"
}
type I4 interface { // GC_ERROR "invalid recursive type I4\n\tLINE: I4 refers to\n\tLINE: I4$"
I4 // GCCGO_ERROR "interface"
}
type I5 interface { // GC_ERROR "invalid recursive type I5\n\tLINE: I5 refers to\n\tLINE+4: I6 refers to\n\tLINE: I5$"
I6
}
type I6 interface {
I5 // GCCGO_ERROR "interface"
}