// Copyright 2019 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.

// Test case for go.dev/issue/34946: Better synchronization of
// parser for function declarations that start their
// body's opening { on a new line.

package p

// accept Allman/BSD-style declaration but complain
// (implicit semicolon between signature and body)
func _() int
{ /* ERROR "unexpected semicolon or newline before {" */
	{ return 0 }
}

func _() {}

func _(); { /* ERROR "unexpected semicolon or newline before {" */ }

func _() {}
