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mirror of https://github.com/golang/go synced 2024-11-16 19:54:55 -07:00
go/test/fixedbugs/issue49143.dir/b.go
Cuong Manh Le ca5f65d771 cmd/compile: fix generic type handling when crawling inline body
For base generic type that is written to export file, we need to mark
all of its methods, include exported+unexported methods, as reachable,
so they can be available for instantiation if necessary. But markType
only looks for exported methods, thus causing the crash in #49143.

To fix this, we introduce new method p.markGeneric, to mark all methods
of the base generic type.

This issue has happend for a while (maybe since we add generic
import/export during go1.18 cycle), and was un-intentionally "fixed" in
CL 356254, when we agresssively call p.markEmbed(t). CL 357232 fixed
that wrong agressive behavior, thus reproduce the bug on tip.

Fixes #49143

Change-Id: Ie64574a05fffb282e9dcc8739df4378c5b6b0468
Reviewed-on: https://go-review.googlesource.com/c/go/+/358814
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
2021-10-27 05:33:58 +00:00

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291 B
Go

// 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 b
import "./a"
type Loaders struct {
Loader *a.Loader[int, int]
}
func NewLoaders() *Loaders {
return new(Loaders)
}