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9b4b4ae585
The typechecker is assuming that alias instances cannot be reached from a named type. However, when type parameters on aliases are permited, it can happen. This CL changes the typechecker to propagate the correct named instance is being expanded. Updates #46477 Fixes #68580 Change-Id: Id0879021f4640c0fefe277701d5096c649413811 Reviewed-on: https://go-review.googlesource.com/c/go/+/601115 Auto-Submit: Robert Griesemer <gri@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Robert Griesemer <gri@google.com> Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
16 lines
306 B
Go
16 lines
306 B
Go
// compile -goexperiment aliastypeparams
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// Copyright 2024 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 main
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type A[P any] = struct{ _ P }
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type N[P any] A[P]
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func f[P any](N[P]) {}
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var _ = f[int]
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