// 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 p

// error messages for parser in generic mode
func _() {
	_ = m[] // ERROR expecting operand
	_ = m[x,]
	_ = m[x /* ERROR unexpected a */ a b c d]
}

// test case from the issue
func f(m map[int]int) int {
	return m[0 // ERROR expecting comma, \: or \]
		]
}
