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a991d9dc27
Add a missing shape check in (*Tsubster).tinter when substituting on a generic type which is an empty interface, analogous to same check in (*Tsubster).tstruct. Empty structs/interfaces that have rparams (i.e. are a generic type or a shape type) need to get a new type of their rparams - they will be different even though they don't have any fields/methods. Without this shape check, we were not correctly completing the Token[int] type during substitution in the example in the issue. This issue only happens for a generic type which is an empty interface (i.e. doesn't actually use the type param, hence quite unusual). Added the test case already created by Keith. Fixes #50841 Change-Id: Ia985b9f52c0e87ed0647b46373e44c51cb748ba4 Reviewed-on: https://go-review.googlesource.com/c/go/+/381175 Trust: Dan Scales <danscales@google.com> Run-TryBot: Dan Scales <danscales@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
8 lines
196 B
Go
8 lines
196 B
Go
// compiledir -G=3
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// Copyright 2022 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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package ignored
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