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go/test/typeparam/issue48838.go
Leonard Wang be571a36c7 cmd/compile: fix the index variable is shadowed in dictPass
The CL 349613 causes this problem.
In fact, we want to use the outer i to find m.List[i],
but the newly created index variable i in the nearest
for range shadow the outer i.

Fixes #48838.

Change-Id: I10f0bd985340f9443eefaadda6fc56e4e7e9a10c
Reviewed-on: https://go-review.googlesource.com/c/go/+/354549
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>
Trust: Dan Scales <danscales@google.com>
2021-10-07 16:38:24 +00:00

32 lines
481 B
Go

// 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 main() {
check[string]()
}
func check[T any]() {
var result setter[T]
switch result.(type) {
case fooA[T]:
case fooB[T]:
}
}
type setter[T any] interface {
Set(T)
}
type fooA[T any] struct{}
func (fooA[T]) Set(T) {}
type fooB[T any] struct{}
func (fooB[T]) Set(T) {}