go/test/range2.go
Russ Cox 8b727f856e cmd/compile, go/types: typechecking of range over int, func
Add type-checking logic for range over integers and functions,
behind GOEXPERIMENT=range.

For proposal #61405 (but behind a GOEXPERIMENT).
For #61717.

Change-Id: Ibf78cf381798b450dbe05eb922df82af2b009403
Reviewed-on: https://go-review.googlesource.com/c/go/+/510537
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
2023-09-20 14:52:29 +00:00

24 lines
826 B
Go

// errorcheck -goexperiment range
// Copyright 2023 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.
// See ../internal/types/testdata/spec/range.go for most tests.
// The ones in this file cannot be expressed in that framework
// due to conflicts between that framework's error location pickiness
// and gofmt's comment location pickiness.
package p
type T struct{}
func (*T) PM() {}
func (T) M() {}
func test() {
for range T.M { // ERROR "cannot range over T.M \(value of type func\(T\)\): func must be func\(yield func\(...\) bool\): argument is not func"
}
for range (*T).PM { // ERROR "cannot range over \(\*T\).PM \(value of type func\(\*T\)\): func must be func\(yield func\(...\) bool\): argument is not func"
}
}