From 5a401001417151649363a4b2fbd658f3f1957cba Mon Sep 17 00:00:00 2001 From: Keith Randall Date: Fri, 13 Aug 2021 09:30:19 -0700 Subject: cmd/compile: fix dictionaries for nested closures Capturing dictionary closure variables is ok. Fixes #47684 Change-Id: I049c87117915e0c5a172b9665bfac2f91064b2d4 Reviewed-on: https://go-review.googlesource.com/c/go/+/342050 Trust: Keith Randall Trust: Dan Scales Run-TryBot: Keith Randall TryBot-Result: Go Bot Reviewed-by: Dan Scales --- test/typeparam/issue47684.go | 19 +++++++++++++++++++ test/typeparam/issue47684b.go | 23 +++++++++++++++++++++++ test/typeparam/issue47684c.go | 19 +++++++++++++++++++ 3 files changed, 61 insertions(+) create mode 100644 test/typeparam/issue47684.go create mode 100644 test/typeparam/issue47684b.go create mode 100644 test/typeparam/issue47684c.go (limited to 'test') diff --git a/test/typeparam/issue47684.go b/test/typeparam/issue47684.go new file mode 100644 index 0000000000..2798b78ca8 --- /dev/null +++ b/test/typeparam/issue47684.go @@ -0,0 +1,19 @@ +// run -gcflags=-G=3 + +// 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 main + +func f[G any]() int { + return func() int { + return func() int { + return 0 + }() + }() +} + +func main() { + f[int]() +} diff --git a/test/typeparam/issue47684b.go b/test/typeparam/issue47684b.go new file mode 100644 index 0000000000..c43ef8d169 --- /dev/null +++ b/test/typeparam/issue47684b.go @@ -0,0 +1,23 @@ +// run -gcflags=-G=3 + +// 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 main + +func f[G any]() interface{} { + return func() interface{} { + return func() interface{} { + var x G + return x + }() + }() +} + +func main() { + x := f[int]() + if v, ok := x.(int); !ok || v != 0 { + panic("bad") + } +} diff --git a/test/typeparam/issue47684c.go b/test/typeparam/issue47684c.go new file mode 100644 index 0000000000..32f1b66087 --- /dev/null +++ b/test/typeparam/issue47684c.go @@ -0,0 +1,19 @@ +// run -gcflags=-G=3 + +// 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 main + +func f[G any]() func()func()int { + return func() func()int { + return func() int { + return 0 + } + } +} + +func main() { + f[int]()()() +} -- cgit v1.2.3-54-g00ecf